CN118345854B - Intelligent large-volume concrete raft construction process, device, method and medium - Google Patents
Intelligent large-volume concrete raft construction process, device, method and medium Download PDFInfo
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- CN118345854B CN118345854B CN202410590259.XA CN202410590259A CN118345854B CN 118345854 B CN118345854 B CN 118345854B CN 202410590259 A CN202410590259 A CN 202410590259A CN 118345854 B CN118345854 B CN 118345854B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
本申请涉及建筑施工的领域，尤其是涉及智能化大体积混凝土筏板施工工艺、方法、系统及介质，其包括通过正交设计及试配试验确定大体积施工时的混凝土配合比，通过足尺模型试验和数值模拟分析检验混凝土配合比的可靠性；通过混凝土总量与混凝土配合比来将混凝土一次性配比完成；通过钢筋下料信息和钢筋原材信息计算得到钢筋切割方案，根据钢筋切割方案对钢筋进行切割并下料安装；将待混凝土浇筑的区域沿浇筑高度分成多个浇筑层，并在每个浇筑层内保留推移区，对下一个浇筑层进行浇筑时，对上一个浇筑层的推移区进行浇筑；通过混凝土整平机器人对混凝土整体进行收面磨光。本申请具有减少混凝土强度的离散性，保证底板施工质量的效果。
The present application relates to the field of building construction, and in particular to intelligent large-volume concrete raft construction technology, methods, systems and media, including determining the concrete mix ratio during large-volume construction through orthogonal design and trial mix tests, and verifying the reliability of the concrete mix ratio through full-scale model tests and numerical simulation analysis; completing the one-time mix of concrete through the total amount of concrete and the concrete mix ratio; calculating the steel bar cutting plan through steel bar cutting information and steel bar raw material information, cutting and cutting and installing the steel bars according to the steel bar cutting plan; dividing the area to be poured with concrete into multiple pouring layers along the pouring height, and retaining a shifting area in each pouring layer, and pouring the shifting area of the previous pouring layer when pouring the next pouring layer; and finishing and polishing the entire concrete through a concrete leveling robot. The present application has the effect of reducing the discreteness of concrete strength and ensuring the quality of base plate construction.
Description
Technical Field
The application relates to the field of building construction, in particular to an intelligent large-volume concrete raft construction process, method, system and medium.
Background
Along with the high-speed development of national economy, the number of buildings is increased, the types of the buildings are also increased and diversified, and in order to meet the increasing diversified demands, the building structures are mostly designed in a mode of combining main tower buildings and skirt buildings. The foundation design of engineering building often adopts a piled raft foundation, the lower part is an engineering pile, and the upper part is a flat raft foundation. The conventional bottom plate thickness is 2m ~4m more, and concrete square volume is around 1 ten thousand cubic meters, belongs to the mass concrete construction category, and along with building height's continuous rising, the bottom plate thickness is the thickening constantly, and concrete square volume also increases constantly for concrete construction quality requires very high, and the concrete demand is big, can't realize once pouring, and multiple times pouring can possibly lead to the joint strength between the concrete joint of different batches not enough, or the concrete strength difference that different batches produced leads to easily cracking, and the construction degree of difficulty is great.
Disclosure of Invention
In order to solve the problem of high construction difficulty, the application provides an intelligent large-volume concrete raft construction process, method, system and medium.
The application provides an intelligent large-volume concrete raft construction process, which adopts the following technical scheme:
An intelligent large-volume concrete raft construction process, comprising:
Determining the concrete mixing ratio in large-volume construction through orthogonal design and trial-and-test experiments, and checking the reliability of the concrete mixing ratio through full-scale model experiments and numerical simulation analysis;
counting the total amount of concrete to be poured, and completing one-time proportioning of the concrete to be poured through the proportion of the total amount of the concrete to the concrete and continuously stirring;
Calculating to obtain a steel bar cutting scheme according to actual steel bar blanking information and steel bar raw material information, cutting and blanking and installing the steel bars according to the steel bar cutting scheme;
Dividing a region to be concreted into a plurality of pouring layers along the pouring height, reserving a pushing area at the end part of each pouring layer, reserving the pushing area when pouring the current pouring layer, not concreting, and pouring the pushing area of the previous pouring layer when pouring the next pouring layer;
And carrying out surface finishing and polishing on the whole concrete by a concrete leveling robot.
By adopting the technical scheme, the required concrete is stirred continuously after one-time proportioning is finished, so that the proportioned concrete is more uniform, the situation that the concrete is deposited after proportioning is finished and caused by precipitation is prevented, the strength of different pouring layers is different, in layered pouring, the next pouring layer is poured immediately when the current pouring layer is not solidified, and the transition area of the current pouring layer is poured, so that the pouring of the next pouring layer and the poured part of the current pouring layer can be effectively fused, the poured concrete is completed in the same batch, the situation that the components are identical, the strength is different and the concrete is cracked in the later period is avoided, the consistency of materials provided by concrete supply factories is controlled, the discreteness of the concrete strength is reduced, the construction quality of a bottom plate is ensured, the setting of a construction joint and a pouring zone after the temperature is avoided, the template support amount and multiple pouring measures are reduced, and the construction cost is greatly saved.
The application provides an intelligent large-volume concrete raft construction device, which adopts the following technical scheme:
An intelligent bulky concrete raft construction device includes:
the screening mechanism screens the plurality of steel bars according to different diameters;
The storage mechanisms are used for storing the screened steel bars, storing the steel bars with the same diameter in the same storage mechanism and discharging the steel bars with the required diameter;
And the cutting mechanism is used for receiving the reinforcing steel bars discharged by the storage mechanism and cutting the reinforcing steel bars into required lengths.
Through adopting above-mentioned technical scheme, realize carrying out autofilter and storage respectively to the reinforcing bar of different diameters, then when need cut the reinforcing bar of appointed diameter, accessible corresponding storage structure can accurately take the reinforcing bar of corresponding diameter, convenient and fast.
Optionally, screening mechanism includes the screening case, set up the screening entry that is used for supplying the reinforcing bar feeding on the screening case, screening incasement goes up and down to be provided with the control block, the control block with be formed with between the screening incasement wall and be used for supplying the screening logical groove that the reinforcing bar passes through, be formed with the screening on the screening incasement wall and say, the reinforcing bar is followed the screening entry passes through the screening logical groove gets into the screening is said, be provided with screening subassembly on the screening is said, still set up a plurality of with the difference on the screening is said the screening pore groove of storage mechanism intercommunication, the process screening subassembly's screening, the reinforcing bar of different diameters gets into different screening pore groove is in order to get into corresponding storage mechanism.
Through adopting above-mentioned technical scheme, come to restrict the reinforcing bar diameter of passing through the screening logical groove for only allow a reinforcing bar to pass through the screening gate groove and contact screening subassembly, reduce when appearing screening subassembly and screen a plurality of reinforcing bars simultaneously, the probability of wrong screening appears, reduce a plurality of reinforcing bars and cause the probability of influence to the screening simultaneously, improve screening stability.
Optionally, screening subassembly includes screening board and screening spring, still set up on the screening way with the shutoff groove of screening hole groove intercommunication, the screening board slides and sets up in the shutoff groove, the screening spring is followed will the screening board pushes away to the direction on the screening hole groove opening surface is flexible, the screening board receives behind the reinforcing bar striking and opens screening hole groove opening surface, the screening board is last to slide and is provided with the regulating plate, it is provided with the control lever to rotate on the screening board, the cover is equipped with first worm gear tooth on the control lever, set up a plurality of be used for with first worm gear tooth meshing is in order to control on the regulating plate adjustment groove that the regulating plate goes up and down, be provided with the carousel on the control lever tip, still rotate on the control lever and be provided with the inserted disc, set up on the inserted disc and be used for supplying on the screening case the gag lever slip is spacing the pivoted spacing groove of inserted disc, it is provided with the pull rod to slide on the inserted disc, it is used for supplying a plurality of supply to insert the carousel in order to rotate the slot.
Through adopting above-mentioned technical scheme, realize the equivalent transformation to screening plate height through the slip adjustment of regulating plate for the staff is more convenient to the high adjustment of screening plate, makes the operation of adjusting the standard of reinforcing bar screening simpler, convenient and fast.
Optionally, the storage mechanism includes a plurality of storage boxes, the storage box with the screening hole groove corresponds, the storage incasement dislocation is provided with a plurality of joint boards, last reinforcing bar roll on the joint board falls to next on the joint board, rotate on the storage box and be provided with the worm wheel pole, rotate on the storage box be provided with worm wheel pole meshed second worm wheel teeth, still rotate on the storage box and be provided with the adjusting lever, the second worm wheel tooth cover is established on the adjusting lever in order to drive the adjusting lever rotates, a plurality of lead screw threads have been seted up on the adjusting lever, a plurality of lead screw threads are followed the length direction distribution of adjusting lever, different the joint board meshing is in corresponding on the lead screw thread, along the direction of distribution the pitch of lead screw thread is crescent or is decremented in order to guarantee to be adjacent the interval between the joint board is equal.
Through adopting above-mentioned technical scheme, through accepting the clearance between the board, make only supply single reinforcing bar to transmit, single reinforcing bar during the unloading of being convenient for reduces and appears a plurality of reinforcing bars and get into cutting mechanism simultaneously, leads to the probability that leads to the fact the influence to cutting mechanism's cutting function, has improved stability.
Optionally, cutting mechanism includes the cutting board, is used for cutting the cutting piece of reinforcing bar and is used for driving the displacement subassembly of cutting piece displacement, offer on the storage case be used for with the reinforcing bar unloading of storage extremely the storage export on the cutting board, be formed with the recess that is used for placing spacing reinforcing bar on the cutting board, still be provided with the benchmark board on the cutting board, slide on the cutting board and be provided with be used for with reinforcing bar in the recess promotes to support to the board on the benchmark board, offer the unloading through-hole that is used for supplying the reinforcing bar after the processing to pass on the benchmark board, slide in the benchmark board is provided with and be used for controlling the unloading that unloading through-hole opening surface opened and close the piece.
Through adopting above-mentioned technical scheme, promote the reinforcing bar through the butt plate and contradict on the benchmark board for cutting mechanism can begin to carry out the initialization calculation of reinforcing bar length from the benchmark board, conveniently initializes, is convenient for carry out the measurement of reinforcing bar length cutting, makes the cutting length of reinforcing bar length more accurate, reduces the reinforcing bar of different length and falls in the position difference on the cutting bench, leads to unable accurate cutting out the probability of appointed reinforcing bar length, improves stability.
Optionally, offer on the cutting board and be used for giving the cutting member cutting bar is put down the chamber of stepping down, it is provided with the backup pad to step down the intracavity, the recess is still offered in order to support the bar in the backup pad, the flexible first block that is provided with in the cutting board, be provided with the second block in the backup pad, first block with the second block is used for to the unloading extremely the bar on the cutting board is blocked in order for the bar to fall into the recess, be formed with the inclined plane on the first block, be provided with in the backup pad and be used for contradicting on the inclined plane in order to with the first block jack-up is blocked the kicking block of bar.
Through adopting above-mentioned technical scheme, block the reinforcing bar through first block piece and second and get into in the recess, further improve stability, realize the automatic rising to first block piece through inclined plane and first block piece, and when the backup pad slides and gives way for the cutting of cutting member, first block piece is automatic to descend under the effect of dead weight and gives way, convenient and fast.
The application provides an intelligent large-volume concrete raft construction method, which adopts the following technical scheme:
an intelligent large-volume concrete raft construction method comprises the following steps:
The steel bar blanking information and the steel bar raw material information are acquired, wherein the steel bar blanking information comprises steel bar blanking area and building strength requirements, and the steel bar raw material information comprises steel bar quantity, steel bar diameter and steel bar length;
determining a reinforcement cutting scheme through the reinforcement blanking information and the reinforcement raw material information;
and determining corresponding control signals through the reinforcement cutting scheme and outputting the control signals to the storage mechanism and the cutting mechanism.
By adopting the technical scheme, the automatic calculation of the steel bar cutting scheme is realized, and the steel bar cutting method is more convenient, quicker and more accurate, so that on-site constructors are guided to cut the steel bars, the loss rate of the on-site steel bars is effectively reduced, and materials are saved.
Optionally, determining the steel bar cutting scheme through the steel bar blanking information and the steel bar raw material information comprises determining the steel bar strength through the steel bar blanking area and the building strength requirement, and determining the required steel bar length, the required steel bar diameter and the steel bar distribution quantity through the steel bar strength;
determining the maximum value of the distribution quantity of the steel bars according to the quantity of the steel bars, determining the maximum value of the required steel bar length according to the quantity of the steel bars and the length of the steel bars, and determining the interval value of the diameter of the steel bars and the interval value of the distribution quantity of the steel bars according to the maximum value of the distribution quantity of the steel bars and the maximum value of the required steel bar length;
The steel bar raw material information also comprises a price table, and a total price interval value is determined through the price table, the interval value of the distribution quantity of the steel bars and the interval value of the diameter of the steel bars;
Acquiring an optimal total price value according to the total price interval value, and determining the optimal length of the steel bars, the optimal distribution quantity of the steel bars and the optimal diameters of the corresponding steel bars according to the optimal total price value;
And outputting the optimal length of the reinforcing steel bars, the optimal distribution quantity of the reinforcing steel bars and the corresponding optimal diameter of the reinforcing steel bars to the cutting mechanism as cutting signals for cutting.
By adopting the technical scheme, according to different requirements, the optimal solution of steel bar blanking is realized, the intellectualization is realized, the efficiency is improved, and the cost is reduced.
The application provides a computer readable storage medium, which adopts the following technical scheme:
A computer readable storage medium storing a computer program capable of being loaded by a processor and executing an intelligent high-volume concrete raft construction method.
By adopting the technical proposal, the utility model has the advantages that,
In summary, the present application includes at least one of the following beneficial technical effects:
1. The consistency of materials provided by concrete supply factories is controlled, the discreteness of concrete strength is reduced, and the construction quality of the bottom plate is ensured.
2. The concrete bottom plate is continuously poured once and seamlessly, so that the setting of construction joints and temperature post-pouring belts is avoided, the formwork supporting quantity and repeated pouring measures are reduced, and the construction cost is greatly saved.
Drawings
Fig. 1 is a schematic process flow diagram of an intelligent large-volume concrete raft construction process in an embodiment of the application.
Fig. 2 is a schematic diagram of the overall structure of an intelligent large-volume concrete raft construction device in an embodiment of the application.
Fig. 3 is a schematic view showing the structure of the control block after hiding the top wall of the screening box.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.
Fig. 5 is an enlarged schematic view of the structure at B in fig. 2.
Fig. 6 is a schematic view showing the structure of the inside of the storage box after the outer wall of the storage box is prominently hidden.
Fig. 7 is a schematic view showing an exploded structure of the roof block.
Fig. 8 is a schematic view showing the structure of the cutting member.
Fig. 9 is an enlarged schematic view of the structure at C in fig. 7.
Fig. 10 is a schematic flow chart of steps of an intelligent large-volume concrete raft construction method according to an embodiment of the application.
Fig. 11 is a flow chart showing the highlighting step S21.
The reference numerals are 1, screening mechanism, 11, screening box, 111, screening inlet, 112, control block, 113, screening through slot, 114, slot, 12, screening channel, 13, screening component, 131, screening plate, 132, screening spring, 133, adjusting plate, 134, control rod, 135, first worm gear tooth, 136, adjusting slot, 137, turntable, 138, pull rod, 14, screening hole slot, 15, blocking slot, 16, tray, 161, limit rod, 162, limit slot, 2, storage mechanism, 21, storage box, 211, storage outlet, 22, receiving plate, 23, worm gear rod, 231, linkage rod, 24, second worm gear tooth, 25, adjusting rod, 251, screw thread, 3, cutting mechanism, 31, cutting table, 32, groove, 33, reference plate, 331, blanking through hole, 332, blanking opening and closing member, 34, resisting plate, 35, cutting member, 36, yielding cavity, 361, support plate, 362, first blocking block, 363, second blocking block, 364, inclined plane, 365, top block and 351.
Detailed Description
The application is described in further detail below with reference to fig. 1-11.
The embodiment of the application discloses an intelligent large-volume concrete raft construction process. Referring to fig. 1, the intelligent mass concrete raft construction process includes the steps of:
s1, determining a concrete mixing ratio in large-volume construction through orthogonal design and trial-and-error experiments, and checking the reliability of the concrete mixing ratio through full-scale model experiments and numerical simulation analysis;
s11, counting the total amount of concrete to be poured, and completing one-time proportioning of the concrete to be poured through the proportion of the total amount of the concrete to the concrete, and continuously stirring;
s12, calculating to obtain a steel bar cutting scheme through actual steel bar blanking information and steel bar raw material information, cutting the steel bars according to the steel bar cutting scheme, blanking and installing;
S13, dividing the area to be concreted into a plurality of pouring layers along the pouring height, reserving a pushing area at the end part of each pouring layer, reserving the pushing area for not concreting when pouring the current pouring layer, and pouring the pushing area of the previous pouring layer when pouring the next pouring layer;
s14, carrying out surface finishing and polishing on the whole concrete by a concrete leveling robot.
In detail, the required concrete is continuously stirred after the one-time proportioning is finished so as to ensure that the proportioned concrete is more uniform, and the situation that the poured concrete is subjected to the same batch proportioning is prevented from being settled after the proportioning is finished, so that the strength of different pouring layers is different is avoided, in the layered pouring of step S13, the pouring of the next pouring layer is immediately carried out when the current pouring layer is not solidified, and the pouring is carried out on the transition area of the current pouring layer, so that the pouring of the next pouring layer and the poured part of the current pouring layer can be effectively fused, and the situation that the strength is different and the later cracking is avoided because the poured concrete is finished in the same batch and the components are the same is avoided.
The embodiment of the application discloses an intelligent large-volume concrete raft construction device. Referring to fig. 2, the intelligent large-volume concrete raft construction device is used for performing intelligent cutting processing on the steel bars in step S12, and in this embodiment, the direction pointed by the gravity direction is downward, and the direction opposite to the downward is upward, and the intelligent large-volume concrete raft construction device includes a screening mechanism 1, a storage mechanism 2 and a cutting mechanism 3. The staff puts into screening mechanism 1 with a plurality of reinforcing bars, screens according to different diameters with the reinforcing bars of putting into through screening mechanism 1. The number of the storage mechanisms 2 is the same as that of the batches screened by the screening mechanism 1, namely, the screening mechanism 1 divides the reinforcing steel bars with different diameters into a plurality of batches through diameter screening, so that the number of the storage mechanisms 2 is the same, the reinforcing steel bars with the same diameter batch screened by the screening mechanism 1 are stored in the same storage mechanism 2, and the reinforcing steel bars with the required diameter are fed when the cutting processing is needed subsequently. The cutting mechanism 3 receives the reinforcing bars discharged from the storage mechanism 2 and cuts the reinforcing bars into desired lengths.
Referring to fig. 2 and 3, the screening mechanism 1 includes a screening box 11, a screening inlet 111 for feeding reinforcing steel bars is provided on the screening box 11, a control block 112 is provided in the screening box 11 in a lifting sliding manner, the side wall of the end of the control block 112 is attached to the inner wall of the screening box 11, the number of stacked reinforcing steel bars placed from the screening inlet 111 is based on the upper end surface of the control block 112, a screening through groove 113 for passing the reinforcing steel bars is formed between the lower end surface of the control block 112 and the bottom wall of the screening box 11, a screw rod is rotated on the screening box 11 through a bearing, the screw rod is inserted into and screwed on the control block 112, a hand wheel for rotating by a worker is fixed on the end of the screw rod outside the screening box 11, and the screw rod is rotated to control the control block 112 to lift so as to ensure that only one reinforcing steel bar passes through the screening through groove 113.
Referring to fig. 3, a screening channel 12 is formed on the inner wall of the screening box 11, steel bars enter the screening channel 12 from the screening inlet 111 through the screening through slot 113, and the bottom wall of the screening inlet 111, the bottom wall of the screening through slot 113 and the bottom wall of the screening channel 12 are all inclined downwards, i.e. the lowest end of the screening inlet 111 is connected to the highest end of the screening through slot 113, and the highest end of the screening through slot 113 is connected to the lowest end of the screening channel 12.
Referring to fig. 4, a plurality of screening components 13 are installed on the screening channel 12, in this embodiment, three screening components 13 are evenly distributed along the extending direction of the screening channel 12, a plurality of screening hole slots 14 communicated with different storage mechanisms 2 are further formed on the screening channel 12, the screening hole slots 14 are in one-to-one correspondence with the storage mechanisms 2, and the screening hole slots 14 are in one-to-one correspondence with the screening components 13, i.e. in this embodiment, the number of the screening hole slots 14, the screening components 13 and the storage mechanisms 2 is three. Screening assembly 13 includes screening board 131 and screening spring 132, still offered on the screening way 12 with screening hole groove 14 intercommunication's shutoff groove 15, screening board 131 slides in shutoff groove 15, screening spring 132 one end fixed connection is on shutoff groove 15 inner wall, screening spring 132's the other end fixed connection is on screening board 131, screening spring 132 is flexible along pushing away screening board 131 to the direction on the screening hole groove 14 opening face, screening board 131 diapire size is greater than screening hole groove 14 opening face's size. The screening plate 131 slides to open the opening surface of the screening hole slot 14 and compress the screening spring 132 after being impacted by the reinforcing steel bar, and the cross-sectional diameter of the opening surface of the screening hole slot 14 is larger than the diameter of the reinforcing steel bar allowed to pass.
Referring to fig. 3 and 4 and 5, an adjusting plate 133 is disposed on the side wall of the screening plate 131 facing the screening gate slot 113 in a lifting and sliding manner, a control rod 134 is disposed in the screening plate 131 in a rotating manner, the control rod 134 penetrates through the side wall of the screening box 11 to the outside, two first worm gear teeth 135 are sleeved on the control rod 134, the first worm gear teeth 135 and the control rod 134 rotate coaxially, a plurality of adjusting slots 136 for meshing with the first worm gear teeth 135 to control the lifting and lowering of the adjusting plate 133 are disposed on the side wall of the adjusting plate 133 facing the control rod 134, and the adjusting slots 136 are uniformly distributed along the sliding direction of the adjusting plate 133. The control rod 134 is located the outside end of screening case 11 and fixedly connected with carousel 137, still rotate the cover on the outside position of screening case 11 of control rod 134 and be equipped with insert dish 16, insert dish 16 cover is established and is only carried out spacingly and arbitrary insert dish 16 rotation to the slip of insert dish 16 on control rod 134, insert dish 16 is located between screening case 11 lateral wall and carousel 137, insert dish 16 and be fixedly connected with gag lever post 161 on the lateral wall towards screening case 11, set up on the screening case 11 lateral wall and be used for supplying gag lever post 161 to insert the spacing groove 162 of slip and spacing insert dish 16 pivoted, the spacing groove 162 extends along the slip direction of screening board 131. The turntable 137 is provided with a pull rod 138 in a sliding manner along a direction approaching or separating from the screening box 11, and the tray 16 is provided with a plurality of slots 114 for inserting the pull rod 138 to limit the rotation of the control rod 134, wherein the slots 114 are uniformly distributed along the circumferential direction of the tray 16. The pull rod 138 is further sleeved with a return spring, one end of the return spring is abutted against or embedded in the pull rod 138, the other end of the return spring is abutted against the side wall of the turntable 137, which faces the inserting disc 16, and the return spring is used for pulling along the direction of inserting the pull rod 138 into the inserting groove 114.
Referring to fig. 3 and 4, when the radius of the reinforcing steel bar striking the adjusting plate 133 is smaller than that of the adjusting plate 133 and the screening plate 131, the reinforcing steel bar striking the adjusting plate 133 does not generate other directional forces, and simply pushes the screening plate 131 to slide and then enter the storage mechanism 2 from the screening hole slot 14. When the radius of the steel bar impacting the adjusting plate 133 is larger than that of the adjusting plate 133 and the screening plate 131, the steel bar impacts on the outer side wall of the adjusting plate 133, which is lower than the middle of the steel bar, so that an oblique upward force is generated at the top end of the adjusting plate 133 after the steel bar impacts, and the steel bar continuously rolls downwards beyond the adjusting plate 133.
Referring to fig. 6, the storage mechanism 2 includes a storage box 21, the storage box 21 corresponds to the screening hole slots 14 one by one, the screening hole slots 14 are communicated at the top end of the storage box 21, a plurality of bearing plates 22 are installed in the storage box 21 in a staggered manner, the reinforcing steel bars on the last bearing plate 22 roll down to the next bearing plate 22, and the intervals between the adjacent bearing plates 22 are equal. The worm wheel rod 23 and the adjusting rod 25 are rotated in the storage box 21, the adjusting rod 25 is fixedly sleeved with a second worm wheel tooth 24 meshed with the worm wheel rod 23, the second worm wheel tooth 24 is used for driving the adjusting rod 25 to rotate, the adjusting rod 25 is provided with a plurality of screw threads 251, in the embodiment, the number of the bearing plates 22 is three, namely, the number of the bearing plates 22 on the same side is one and two in a staggered mode, so that the number of the screw threads 251 on one adjusting rod 25 is two or one, the plurality of screw threads 251 are distributed along the length direction of the adjusting rod 25, different bearing plates 22 are meshed with the corresponding screw threads 251, and the pitches of the screw threads 251 along the distribution direction are increased or decreased to ensure that the distances between the adjacent bearing plates 22 are equal. In this embodiment, the number of worm gear rods 23 in one storage box 21 is two, one worm gear rod 23 penetrates through the side wall of the storage box 21 to the outside, a hand wheel for a worker to rotate is fixed on the end part of the worm gear rod 23 located on the outside of the storage box 21, the number of adjusting rods 25 located on the same side of the bearing plate 22 is two, namely, one bearing plate 22 corresponds to the two adjusting rods 25, the two adjusting rods 25 are respectively meshed with the two worm gear rods 23, the worm gear rod 23 fixed with the hand wheel is further meshed with a linkage rod 231, the linkage rod 231 is meshed with the worm gear rod 23 in a worm gear meshing mode, a bevel gear is sleeved on the other worm gear rod 23, and the end part of the linkage rod 231 away from the hand wheel is meshed with the bevel gear of the other worm gear rod 23 through the bevel gear to realize synchronous rotation. The pitch of the screw threads 251 is different to ensure that the adjacent spaces between the receiving plates 22 are equal after moving, for example, the three receiving plates 22 from top to bottom in the embodiment are respectively designated A, B, C, the initial pitch is Y, the rising speed of a is X1, the pitch between the top wall of the storage box 21 and a decreases at the speed of X1, that is, Y-X1×t, and if the pitch between B and a is to be guaranteed to be equal to the pitch between the top wall and a, in the process that a moves up at the speed of X1, B needs to move up at the speed of 2×x1, that is, the pitch between a and B is y+x1×t (a moves away from B at the speed of X1) -2×x1×t (B moves closer to a at the speed of 2×x1) =y-X1×t, so that the pitch between the top wall and a is guaranteed to be equal to the pitch between a and B, and C is the same, so that the pitch of the screw thread 251 needs to be larger the pitch of the screw thread 251 located below. the receiving plate 22 at the lowest position is rotationally connected with an opening plate, the receiving plate 22 is also provided with a motor for driving the opening plate to rotate, and the motor rotates to drive the opening plate to rotate, so that the opening plate is controlled to be attached and sealed with the inner wall of the storage box 21 or a gap is formed between the opening plate and the inner wall of the storage box 21 so as to enable the reinforcing steel bars to leave the storage box 21 for discharging.
Referring to fig. 6, 7 and 8, the cutting mechanism 3 includes a cutting table 31, a cutting member 35 for cutting steel bars, and a displacement assembly 351 for driving the cutting member 35 to displace, a storage outlet 211 for discharging stored steel bars onto the cutting table 31 is formed on the lower end surface of the storage box 21, a groove 32 for placing limiting steel bars is formed on the upper end surface of the cutting table 31, the radian radius of the groove 32 is larger than the maximum steel bar radius in normal use, and the groove 32 is formed along the length direction of the cutting table 31. The end of the cutting table 31 in the length direction is also fixedly connected with a reference plate 33, the reference plate 33 is positioned at one end of the groove 32 in the length direction, and the end of the groove 32 is blocked by the reference plate 33. The cutting table 31 slides on the up end and is used for pushing the reinforcing bar in the recess 32 to the butt plate 34 on the benchmark board 33, runs through on the benchmark board 33 and has offered the unloading through-hole 331 that is used for the reinforcing bar after processing to pass, and the interior slip of benchmark board 33 or rotate have the unloading of being used for controlling unloading through-hole 331 opening surface and open and close piece 332, and unloading is opened and close piece 332 includes and is opened and close the board and opens and close the driving piece, and the driving piece can adopt cylinder or motor, and the area of opening and close the board is greater than the cross-sectional dimension of unloading through-hole 331 opening surface, and the telescopic link of opening and close the driving piece is connected on opening and close the board to drive and open and close the board and will unloading through-hole 331 shutoff or open.
Referring to fig. 7 and 9, an upper end surface of the cutting table 31 is provided with a yielding cavity 36 for yielding the steel bar cut by the cutting member 35, the yielding cavity 36 is extended from top to bottom, the yielding cavity 36 is internally provided with a supporting plate 361, the supporting plate 361 can be driven by a cylinder or a screw rod matched with a motor, the groove 32 is further provided on the supporting plate 361 to support the steel bar, the upper end surface of the supporting plate 361 is flush with the upper end surface of the cutting table 31, the cutting table 31 is provided with a first blocking piece 362 in a telescopic sliding manner, the first blocking piece 362 is positioned at a position of the cutting table 31 close to the yielding cavity 36, and the first blocking piece 362 is positioned at a position of the yielding cavity 36 away from the reference plate 33, and the first blocking piece 362 stretches along a direction of retracting into the cutting table 31 or extending to the outside of the upper end surface of the cutting table 31. The support plate 361 is kept away from the position of the first blocking block 362 and fixedly connected with a second blocking block 363, the first blocking block 362 and the second blocking block 363 are used for blocking the steel bars fed onto the cutting table 31 so that the steel bars fall into the grooves 32, an inclined surface 364 is formed on the side wall of the first blocking block 362 facing the support plate 361, the inclined surface 364 inclines in a downward direction along the direction that the distance from the support plate 361 is greater, a top block 365 is fixedly connected on the side wall of the support plate 361 facing the first blocking block 362, and the top block 365 is used for being inserted into the inner wall of the yielding cavity 36 close to the first blocking block 362 so as to push the top block 365 against the inclined surface 364 to upwards jack the first blocking block 362 up the steel bars. In the present embodiment, when the supporting plate 361 abuts against the side wall of the relief cavity 36 away from the reference plate 33, the third and the second thirds of the total length of the recess 32 are used as the coordinate points, the first blocking piece 362 is located at the coordinate point away from the third of the reference plate 33, the second blocking piece 363 is located at the coordinate point close to the third of the reference plate 33, and in other embodiments, the positions of the first blocking piece 362 and the second blocking piece 363 may be different.
Referring to fig. 8, the displacement assembly 351 may include an air cylinder and a screw rail, a screw and a matched motor to drive the cutting member 35 to slide and lift, the cutting member 35 may include a tool for cutting, such as a bar cutter or a flame cutter or a sand-blast cutter or a diamond wire cutter, and may further include at least two flexible pressing blocks made of flexible materials, the bars at both ends of the cutting place are pressed against the inner wall of the groove 32 by the flexible pressing blocks, and the distance between the flexible pressing blocks may be greater than the difference between the length of the supporting plate 361 and the opened length of the relief cavity 36.
The embodiment of the application discloses an intelligent large-volume concrete raft construction method. Referring to fig. 10, the intelligent large-volume concrete raft construction method includes the steps of:
S2, obtaining steel bar blanking information and steel bar raw material information, wherein the steel bar blanking information comprises steel bar blanking area and building strength requirements, and the steel bar raw material information comprises steel bar quantity, steel bar diameter and steel bar length;
s21, determining a steel bar cutting scheme through steel bar blanking information and steel bar raw material information;
And S22, determining corresponding control signals through a reinforcement cutting scheme and outputting the control signals to the storage mechanism 2 and the cutting mechanism 3.
In detail, the steel bar cutting scheme is automatically calculated and obtained through the steel bar blanking information and the steel bar raw material information, and a worker can install the cut steel bars according to the steel bar cutting scheme.
Referring to fig. 11, step S21 further includes the steps of:
S3, determining the strength of the steel bars according to the blanking area of the steel bars and the building strength requirement, and determining the length of the required steel bars, the diameter of the required steel bars and the distribution quantity of the steel bars according to the strength of the steel bars;
S31, determining the maximum value of the distribution quantity of the steel bars according to the quantity of the steel bars, determining the maximum value of the required length of the steel bars according to the quantity of the steel bars and the length of the steel bars, and determining the interval value of the diameter of the steel bars and the interval value of the distribution quantity of the steel bars according to the maximum value of the distribution quantity of the steel bars and the maximum value of the required length of the steel bars;
s32, the raw material information of the steel bars also comprises a price list, and the total price interval value is determined through the price list, the interval value of the distribution quantity of the steel bars and the interval value of the diameter of the steel bars;
S33, acquiring an optimal total price value through the total price interval value, and determining the optimal length, the optimal distribution quantity and the optimal diameter of the corresponding steel bars through the optimal total price value;
And S34, outputting the optimal length of the reinforcing steel bars, the optimal distribution quantity of the reinforcing steel bars and the optimal diameters of the corresponding reinforcing steel bars to the cutting mechanism 3 as cutting signals for cutting.
The blanking area of the steel bar is the area where the steel bar needs to be installed in the current construction, the building strength is the strength of the steel bar concrete required in the current construction engineering, the strength of the steel bar is determined through the blanking area and the building strength, the strength of the steel bar is the comprehensive strength of the steel bar, and the steel bar comprises the strength brought by the length of the steel bar, the strength brought by the diameter of the steel bar and the strength brought by the density of the distribution of the steel bar; the raw material information of the reinforcing steel bars can be imported in the form of a table, the number of the reinforcing steel bars is the number of the reinforcing steel bars which can be cut currently or the number of the reinforcing steel bars in a warehouse, the concrete expression is that the reinforcing steel bars which can be stored in the storage mechanism 2 after being screened by the screening mechanism 1 are stored, the diameter of the reinforcing steel bars represents the diameter data of the reinforcing steel bars which are currently existing, the length of the reinforcing steel bars represents the length data of the reinforcing steel bars which are currently existing, the diameter of the reinforcing steel bars corresponds to the number of the reinforcing steel bars, namely the number of the reinforcing steel bars which correspond to the number of the reinforcing steel bars, the reinforcing steel bars in the reinforcing steel bars with the diameter are respectively the number, the density of the reinforcing steel bars in the reinforcing steel bars with the number of the reinforcing steel bars is firstly determined by the number of the reinforcing steel bars, the maximum value of the reinforcing steel bar distribution number is determined by the reinforcing steel bar length under the condition that all reinforcing steel bars are uniformly distributed, namely the reinforcing steel bar length of the reinforcing steel bars is not longer than the reinforcing steel bar length of the shortest reinforcing steel bar, and then the total reinforcing steel bar strength is calculated, and the interval value of the reinforcing steel bar diameter and the reinforcing steel bar length can be obtained, for example, if ten reinforcing steel bars are respectively 5-5.9m, the length is 5m, and 5.1m, 5m is the maximum length of the cutting length can not be obtained by 5m, and 5m is 5m, and the length can not be obtained by 5m, and the cutting 5m is 5m, 25 m is the length can be obtained by construction, the maximum value of the distribution quantity of the reinforcing steel bars isIf the diameters of the ten steel bars are two, namely the diameters of the five steel bars are 5cm and the diameters of the five steel bars are 6cm, the comprehensive strength of the steel bars can be calculatedAt the moment, the comprehensive strength of the steel bars can be combined with the building strength requirement, and then the price list is combined, if the optimal total price value is set to be the lowest price, the diameter of the steel bars can be selected, or the length of the steel bars is cut, or the number of the steel bars is reduced, so that the lowest price of the steel bars is adopted to ensure that the comprehensive strength of the steel bars is still in the range of the building strength requirement; or the lowest loss rate of the reinforcement bar raw material is targeted, the minimum cutting times are targeted for calculation, and a new reinforcement bar cutting scheme is obtained.
The embodiment of the application discloses a computer readable storage medium. Referring to fig. 1, a computer-readable storage medium is used to store a computer program that can be loaded by a processor and perform an intelligent high-volume concrete raft construction method.
The computer readable storage medium includes, for example, a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, etc., which can store program codes.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (8)
1. An intelligent bulky concrete raft construction device, characterized by comprising:
A screening mechanism (1) for screening a plurality of reinforcing steel bars according to different diameters;
the storage mechanisms (2) are used for storing the screened reinforcing steel bars, storing the reinforcing steel bars with the same diameter in the same storage mechanism (2), and discharging the reinforcing steel bars with the required diameters;
the cutting mechanism (3) is used for receiving the steel bars discharged by the storage mechanism (2) and cutting the steel bars into required lengths;
Screening mechanism (1) is including screening case (11), set up on screening case (11) and be used for supplying reinforcing bar feeding's screening entry (111), the lift is provided with control block (112) in screening case (11), control block (112) with be formed with between screening case (11) inner wall and be used for supplying reinforcing bar to pass through screening logical groove (113), be formed with screening way (12) on screening case (11) inner wall, the reinforcing bar follow screening entry (111) are passed through screening logical groove (113) get into screening way (12), be provided with screening subassembly (13) on screening way (12), still set up a plurality of with the difference on screening way (12) screening hole groove (14) of storage mechanism (2) intercommunication, the process screening of screening subassembly (13), different diameter reinforcing bars get into the difference screening hole groove (14) in order to get into corresponding storage mechanism (2).
2. The intelligent large-volume concrete raft construction device according to claim 1, wherein the screening assembly (13) comprises a screening plate (131) and a screening spring (132), a blocking groove (15) communicated with the screening hole groove (14) is further formed in the screening channel (12), the screening plate (131) is slidably arranged in the blocking groove (15), the screening spring (132) stretches and contracts along the direction of pushing the screening plate (131) onto the opening surface of the screening hole groove (14), the screening plate (131) is impacted by reinforcing steel bars to open the opening surface of the screening hole groove (14), an adjusting plate (133) is slidably arranged on the screening plate (131), a control rod (134) is rotatably arranged on the screening plate (131), a first worm gear tooth (135) is sleeved on the control rod (134), a plurality of adjusting grooves (136) for being engaged with the first worm gear tooth (135) to control the lifting of the adjusting plate (135) are formed in the adjusting plate, a rotating disc (16) is further arranged on the end portion of the control rod (16), a rotating disc (137) is further arranged on the end portion of the control rod (16), the screening box (11) is provided with a limiting groove (162) for the limiting rod (161) to insert and slide and limit the inserting disc (16) to rotate, the rotary disc (137) is provided with a pull rod (138) in a sliding mode, and the inserting disc (16) is provided with a plurality of slots (114) for the pull rod (138) to insert and limit the rotation of the control rod (134).
3. The intelligent large-volume concrete raft construction device according to claim 1, wherein the storage mechanism (2) comprises a plurality of storage boxes (21), the storage boxes (21) correspond to the screening hole grooves (14), a plurality of support plates (22) are arranged in the storage boxes (21) in a staggered mode, reinforcing steel bars on the support plates (22) roll down to the next support plate (22), worm gear rods (23) are rotatably arranged on the storage boxes (21), second worm gear teeth (24) meshed with the worm gear rods (23) are rotatably arranged on the storage boxes (21), adjusting rods (25) are rotatably arranged on the storage boxes (21), the second worm gear teeth (24) are sleeved on the adjusting rods (25) to drive the adjusting rods (25) to rotate, a plurality of screw threads (251) are arranged on the adjusting rods (25), the screw threads (251) are distributed along the length direction of the adjusting rods (25) to the next support plates, the screw threads (251) are distributed along the length direction of the adjusting rods, and the screw threads (251) are distributed along the length direction of the adjacent screw rods (22) in a gradually-decreasing mode, and the pitch directions of the adjacent screw threads (251) are guaranteed to be equal.
4. An intelligent large-volume concrete raft construction device according to claim 3, wherein the cutting mechanism (3) comprises a cutting table (31), a cutting piece (35) for cutting reinforcing steel bars and a displacement assembly (351) for driving the cutting piece (35) to displace, a storage outlet (211) for discharging the stored reinforcing steel bars onto the cutting table (31) is formed in the storage box (21), a groove (32) for placing limiting reinforcing steel bars is formed in the cutting table (31), a reference plate (32) is further arranged on the cutting table (31), a retaining plate (34) for pushing the reinforcing steel bars in the groove (32) onto the reference plate (33) is slidably arranged on the cutting table (31), and a discharging through hole (331) for allowing the processed reinforcing steel bars to pass through is formed in the reference plate (33), and a discharging opening and closing piece (332) for controlling opening surfaces of the discharging through hole (331) is slidably arranged on the reference plate (33).
5. The intelligent large-volume concrete raft construction device according to claim 4, wherein the cutting table (31) is provided with a yielding cavity (36) for yielding the steel bars cut by the cutting piece (35), the yielding cavity (36) is internally provided with a supporting plate (361), the groove (32) is further provided with a first blocking block (362) in a telescopic manner on the supporting plate (361) for supporting the steel bars, the supporting plate (361) is provided with a second blocking block (363), the first blocking block (362) and the second blocking block (363) are used for blocking the steel bars fed to the cutting table (31) so that the steel bars fall into the groove (32), the first blocking block (362) is provided with an inclined surface (364), and the supporting plate (361) is provided with a top block (365) for abutting against the inclined surface (364) to jack up the first blocking block (362).
6. An intelligent large-volume concrete raft construction method, which uses the intelligent large-volume concrete raft construction device as claimed in claim 1, and is characterized by comprising the following steps:
The steel bar blanking information and the steel bar raw material information are acquired, wherein the steel bar blanking information comprises steel bar blanking area and building strength requirements, and the steel bar raw material information comprises steel bar quantity, steel bar diameter and steel bar length;
Determining the concrete mixing ratio in large-volume construction through orthogonal design and trial-and-test experiments, and checking the reliability of the concrete mixing ratio through full-scale model experiments and numerical simulation analysis;
counting the total amount of concrete to be poured, and completing one-time proportioning of the concrete to be poured through the proportion of the total amount of the concrete to the concrete and continuously stirring;
Calculating to obtain a steel bar cutting scheme according to actual steel bar blanking information and steel bar raw material information, cutting and blanking and installing the steel bars according to the steel bar cutting scheme;
Dividing a region to be concreted into a plurality of pouring layers along the pouring height, reserving a pushing area at the end part of each pouring layer, reserving the pushing area when pouring the current pouring layer, not concreting, and pouring the pushing area of the previous pouring layer when pouring the next pouring layer;
Carrying out surface finishing and polishing on the whole concrete by a concrete leveling robot;
determining a reinforcement cutting scheme through the reinforcement blanking information and the reinforcement raw material information;
And corresponding control signals are determined through the reinforcement cutting scheme and output to the storage mechanism (2) and the cutting mechanism (3).
7. The method of constructing an intelligent mass concrete raft according to claim 6, wherein determining a reinforcement cutting scheme by the reinforcement discharging information and the reinforcement raw material information includes:
determining the strength of the steel bars according to the blanking area of the steel bars and the building strength requirement, and determining the length of the required steel bars, the diameter of the required steel bars and the distribution quantity of the steel bars according to the strength of the steel bars;
determining the maximum value of the distribution quantity of the steel bars according to the quantity of the steel bars, determining the maximum value of the required steel bar length according to the quantity of the steel bars and the length of the steel bars, and determining the interval value of the diameter of the steel bars and the interval value of the distribution quantity of the steel bars according to the maximum value of the distribution quantity of the steel bars and the maximum value of the required steel bar length;
The steel bar raw material information also comprises a price table, and a total price interval value is determined through the price table, the interval value of the distribution quantity of the steel bars and the interval value of the diameter of the steel bars;
Acquiring an optimal total price value according to the total price interval value, and determining the optimal length of the steel bars, the optimal distribution quantity of the steel bars and the optimal diameters of the corresponding steel bars according to the optimal total price value;
and outputting the optimal length of the reinforcing steel bars, the optimal distribution quantity of the reinforcing steel bars and the corresponding optimal diameter of the reinforcing steel bars to the cutting mechanism (3) as cutting signals for cutting.
8. A computer readable storage medium storing a computer program loadable by a processor and performing the method of intelligent high volume concrete raft construction of any one of claims 6 to 7.
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| AT404566B (en) * | 1993-07-23 | 1998-12-28 | Filzmoser Maschinenbau Ges M B | Straightening and cutting machine for processing concrete reinforcing steel |
| JP2006035071A (en) * | 2004-07-26 | 2006-02-09 | Takumi Giken:Kk | Sorting arrangement of predetermined length article |
| GB201117060D0 (en) * | 2011-10-04 | 2011-11-16 | Pce Ltd | Improvements in and relating to a building unit |
| CN106238625A (en) * | 2016-10-10 | 2016-12-21 | 芜湖瑞德机械科技有限公司 | General-purpose type building iron straightening shear and using method thereof |
| CN111206746B (en) * | 2020-01-09 | 2021-05-11 | 海达建设集团有限公司 | Construction method of large-area terrace |
| CN111438306B (en) * | 2020-05-12 | 2020-12-11 | 江苏顺隆鸿泰电力设备有限公司 | Can adjust reinforcing bar shearing mechanism who cuts length |
| CN113279373B (en) * | 2021-02-08 | 2023-03-17 | 中国水电基础局有限公司 | Concrete warehousing complete method and hydropower station open channel repairing method |
| CN113529520B (en) * | 2021-08-12 | 2022-09-27 | 宇杰集团股份有限公司 | Concrete pouring construction method for edge part of road base |
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