CN222349635U - A prestressed concrete bearing plate with adjustable stiffness - Google Patents
A prestressed concrete bearing plate with adjustable stiffness Download PDFInfo
- Publication number
- CN222349635U CN222349635U CN202420355007.4U CN202420355007U CN222349635U CN 222349635 U CN222349635 U CN 222349635U CN 202420355007 U CN202420355007 U CN 202420355007U CN 222349635 U CN222349635 U CN 222349635U
- Authority
- CN
- China
- Prior art keywords
- prestressed
- assembly
- tensioning
- bearing plate
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 39
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 36
- 210000002435 tendon Anatomy 0.000 claims abstract description 32
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 10
- 230000003068 static effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 description 9
- 239000002689 soil Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model provides a rigidity-adjustable prestressed concrete bearing plate which comprises a rectangular concrete structure bearing plate, a prestressed tensioning system and a power tensioning system, wherein the rectangular concrete structure bearing plate comprises a reinforced concrete bottom plate and a prestressed net, the prestressed net is formed by staggered arrangement of a plurality of prestressed tendons, two ends of each prestressed tendon respectively penetrate through the reinforced concrete bottom plate and are connected with a tensioning locking end, the prestressed tensioning system comprises a plurality of prestressed tensioning assemblies, the prestressed tensioning assemblies are arranged on the prestressed tendons between the tensioning locking end and the reinforced concrete bottom plate, and each power tensioning assembly comprises eight power tensioning assemblies which are respectively connected with each prestressed tensioning assembly positioned on the same side through two inhaul cables. The prestressed concrete bearing plate with adjustable rigidity can gradually tension prestress along with gradual increase of load in the static load test process, and the rigidity of the bearing plate is gradually adjusted.
Description
Technical Field
The utility model relates to the technical field of bearing plates, in particular to a prestressed concrete bearing plate with adjustable rigidity.
Background
With the development of cities and infrastructures, the soil body is softer in certain areas, the upper load is larger, the bearing capacity and sedimentation are larger, the normal use requirements cannot be met, and the composite foundation is required to be adopted for treatment to meet the requirement on the foundation base pressure. The existing composite foundations mainly comprise sand pile composite foundations, rammed cement soil pile composite foundations, soil pile composite foundations and the like.
In order to ensure engineering quality, static test is required to be carried out on the composite foundation, in the static test, the pile diameters and the pile distances are larger, and in the static load test of the composite foundation, a larger bearing plate is required to accurately reflect the bearing capacity of the composite foundation. However, in the actual test process, the bearing plate is often deformed due to insufficient rigidity of the bearing plate, so that the actual bearing capacity of the pile foundation to foundation soil cannot be detected, great harm is brought to engineering, and potential safety hazards are left. If the thickness of the bearing plate is simply increased, the material waste and the difficulty of the test operation are increased.
Disclosure of utility model
The utility model aims to provide a prestressed concrete bearing plate with adjustable rigidity, which is used for solving the technical problem that the bearing plate deforms due to insufficient rigidity in the static load test process of the bearing capacity of a composite foundation, so that the engineering is endangered.
The utility model provides a prestressed concrete bearing plate with adjustable rigidity, which comprises:
The rectangular concrete structure bearing plate comprises a reinforced concrete bottom plate and a prestressed net arranged in the reinforced concrete bottom plate, wherein the prestressed net is formed by staggered arrangement of a plurality of prestressed tendons, and two ends of each prestressed tendon respectively penetrate through the reinforced concrete bottom plate and are connected with tensioning locking ends;
The prestress tensioning system comprises a plurality of prestress tensioning components which are in one-to-one correspondence with the tensioning locking ends, and the prestress tensioning components are arranged on the prestress tendons between the tensioning locking ends and the reinforced concrete bottom plate;
The power tensioning system comprises eight power tensioning assemblies, each power tensioning assembly is correspondingly arranged at two ends of four side walls of the reinforced concrete bottom plate, and each power tensioning assembly is connected with each prestress tensioning assembly located on the same side through two inhaul cables.
According to the prestressed concrete bearing plate with adjustable rigidity, the four protecting shells are respectively arranged on the outer sides of the four side walls of the reinforced concrete bottom plate, and each protecting shell is respectively arranged on the outer part of each prestressed tensioning assembly located on the same side.
The prestress concrete bearing plate with the adjustable rigidity comprises a left stress cushion block, a right stress cushion block, two left support legs, two right support legs, an inner ring annular locking flap and an annular counter force ring, wherein one end of each left support leg is provided with a left circular arc end, the other end of each left support leg is provided with a left assembly block, one end of each right support leg is provided with a right circular arc end, the other end of each right support leg is provided with a right assembly block, two left circular arc grooves matched with each left circular arc end are respectively arranged on the left stress cushion block, two right circular arc grooves matched with each right circular arc end are respectively arranged on the right stress cushion block, circular arc assembly ends are respectively arranged on each right assembly block, circular arc assembly grooves matched with the circular arc assembly ends are respectively arranged on each left assembly block, the two left circular arc ends are respectively assembled with the two left circular arc grooves, the two circular arc assembly ends are respectively corresponding to the two assembly grooves, the two circular arc assembly ends are respectively arranged on the two circular arc support legs and the two circular arc support legs respectively, the two circular arc assembly grooves are respectively matched with the annular counter force ring annular locking flap and the inner ring annular counter force ring is sleeved with the annular sealing flap, and the annular counter force ring is sleeved between the two circular arc support flaps and the annular sealing ring.
The utility model provides a rigidity-adjustable prestressed concrete bearing plate, which is characterized in that a left stress cushion block consists of two symmetrical left half cushion blocks, wherein each left half cushion block is respectively provided with a corresponding first T-shaped clamping groove, first I-shaped locking blocks are clamped in the corresponding two first T-shaped clamping grooves, a right stress cushion block consists of two symmetrical right half cushion blocks, each right half cushion block is respectively provided with a corresponding second T-shaped clamping groove, and second I-shaped locking blocks are clamped in the corresponding two second T-shaped clamping grooves.
The prestress concrete bearing plate with the adjustable rigidity comprises four arc-shaped locking petals, a cylindrical shell structure is formed by encircling the four arc-shaped locking petals, a first circular barb is arranged on the inner side wall of the inner ring annular locking petal, a second circular barb is arranged on the prestress rib at the position corresponding to the inner ring annular locking petal, the inner ring annular locking petal can be locked with the second circular barb on the prestress rib through the first circular barb, and an elastic clamp spring is further arranged on the inner side of the annular counterforce ring.
The prestressed concrete bearing plate with the adjustable rigidity comprises left upper guy holes and left lower guy holes, wherein the left upper guy holes and the left lower guy holes are respectively formed in left assembly blocks from top to bottom, the right upper guy holes and the right lower guy holes are respectively formed in right assembly blocks from top to bottom, the guy comprises left upper guy holes, left lower guy holes, right upper guy holes and right lower guy holes, the left upper guy holes respectively penetrate through the left upper guy holes, left upper guy buckles are respectively arranged on the left upper guy corresponding to the outer sides of the left assembly blocks, the left lower guy holes respectively penetrate through the left lower guy holes, left lower guy buckles are respectively arranged on the left lower guy corresponding to the outer sides of the left assembly blocks, right upper guy buckles are respectively arranged on the right upper guy corresponding to the outer sides of the right assembly blocks, and right lower guy buckles are respectively arranged on the right lower guy corresponding to the right assembly blocks.
According to the prestressed concrete bearing plate with adjustable rigidity, the power tensioning assembly comprises a fixed shaft, a guy rope rolling shaft sleeve, a moment amplifier and a square bolt, one end of the fixed shaft is fixedly connected with the side wall of the reinforced concrete bottom plate, the guy rope rolling shaft sleeve is rotatably arranged on the fixed shaft, one end of the moment amplifier is fixedly connected with the guy rope rolling shaft sleeve, and the other end of the moment amplifier is fixedly connected with the square bolt.
According to the prestressed concrete bearing plate with adjustable rigidity, the two power tensioning assemblies positioned on the same side of the reinforced concrete bottom plate are respectively a first power tensioning assembly and a second power tensioning assembly, the free ends of the left upper stay rope and the right upper stay rope positioned on the same side are respectively connected with the stay rope reel sleeve in the first power tensioning assembly in a winding manner, and the free ends of the left lower stay rope and the right lower stay rope positioned on the same side are respectively connected with the stay rope reel sleeve in the second power tensioning assembly in a winding manner.
According to the prestressed concrete bearing plate with adjustable rigidity, the reinforced concrete bottom plate is provided with the low-friction prestressed duct through which the prestressed tendons pass, and the low-friction prestressed duct is formed by a hollow steel pipe embedded in the reinforced concrete bottom plate.
According to the prestressed concrete bearing plate with adjustable rigidity, the prestressed net is formed by arranging a plurality of transverse prestressed tendons and longitudinal prestressed tendons in a staggered mode, and the transverse prestressed tendons and the longitudinal prestressed tendons are tensile steel bundles.
According to the prestressed concrete bearing plate with adjustable rigidity, the moment amplifier increases the moment through the rotation of the square head bolt by means of external force, so that the cable winding shaft sleeve is driven to rotate, the cable connected with the cable winding shaft sleeve is tensioned by the moment amplifier, and the tensioning of the cable drives the angle between the left support leg and the right support leg to be increased, so that the prestressed tendons are tensioned.
When the prestress rib stretches and becomes long, the first round barb on the annular locking flap of the inner ring can be staggered with the second round barb on the prestress rib, when the two are different by one annular barb, the annular counter-force ring presses the annular locking flap of the inner ring and the prestress rib together through the elastic clamp spring, and therefore the prestress rib is anchored and locked through the annular locking flap of the inner ring.
Therefore, the prestressed concrete bearing plate with adjustable rigidity has the following advantages:
1. The prestressed concrete bearing plate with adjustable rigidity provided by the utility model has the advantages of ingenious structural design, convenience in operation and easiness in operation and use of engineering technicians;
2. the rigidity-adjustable prestressed concrete bearing plate provided by the utility model can gradually adjust the rigidity of the bearing plate along with gradual increase of the load to gradually tension the prestress in the static load test process;
3. The rigidity-adjustable prestressed concrete bearing plate can reduce the erection height of the static load weight block in a static load test and reduce the safety risk;
4. The prestressed concrete bearing plate with adjustable rigidity is light in weight, convenient to lift and hoist and reduces construction cost.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a stiffness adjustable prestressed concrete load bearing plate of the present utility model;
FIG. 2 is an isometric view of a stiffness adjustable prestressed concrete load-bearing plate of the present utility model;
FIG. 3 is a front view of the adjustable stiffness prestressed concrete load bearing plate of the present utility model with four protective shells removed;
FIG. 4 is an isometric view of the adjustable stiffness prestressed concrete load bearing plate of the present utility model with four protective shells removed;
FIG. 5 is a schematic diagram of the assembly of a pre-stressing net, a pre-stressing tension system, and a dynamic tension system in a pre-stressing concrete holding plate with adjustable stiffness according to the present utility model;
FIG. 6 is a schematic structural view of a prestress tensioning assembly in a stiffness adjustable prestressed concrete bearing plate of the present utility model;
FIG. 7 is a schematic diagram of a split construction of a prestress tensioning assembly in a stiffness adjustable prestressed concrete bearing plate of the present utility model;
FIG. 8 is a schematic structural view of a dynamic tensioning assembly in a stiffness adjustable prestressed concrete load-bearing plate of the present utility model.
Reference numerals illustrate:
100. 200 parts of a prestress tensioning system, 300 parts of a power tensioning system, 400 parts of a protective shell;
11. the reinforced concrete bottom plate is 12, prestressed tendons, 13, stretching the locking end;
2. The prestress tensioning assembly, 21, left stress cushion blocks, 21A, left half cushion blocks, 211, left arc grooves, 212, first T-shaped clamping grooves, 22, right stress cushion blocks, 22A, right half cushion blocks, 221, right arc grooves, 222, second T-shaped clamping grooves, 23, left support legs, 231, left arc ends, 232, left assembly blocks, 233, arc assembly grooves, 24, right support legs, 241, right arc ends, 242, right assembly blocks, 243, arc assembly ends, 25, inner ring annular locking flaps, 251, arc locking flaps, 26, annular counterforce rings, 27, first I-shaped locking blocks, 28, second I-shaped locking blocks;
3. The device comprises a power tensioning assembly, a first power tensioning assembly, a second power tensioning assembly, a 31, a guy cable, a 32, a fixed shaft, a 33, a guy cable winding sleeve, a 34, a torque amplifier and a 35 square head bolt.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "coupled," and "connected" are used in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 8, the stiffness-adjustable prestressed concrete bearing plate according to the embodiment of the present utility model includes a rectangular concrete structure bearing plate 100, a prestressed tensioning system 200, and a dynamic tensioning system 300.
The rectangular concrete structure bearing plate 100 comprises a reinforced concrete bottom plate 11 and a prestressed net arranged in the reinforced concrete bottom plate 11, wherein the prestressed net is formed by staggered arrangement of a plurality of prestressed tendons 12, and two ends of each prestressed tendon 12 respectively penetrate through the reinforced concrete bottom plate 11 and are connected with a tensioning locking end 13.
The prestress tensioning system 200 comprises a plurality of prestress tensioning components 2 which are in one-to-one correspondence with the tensioning lock ends 13, and the prestress tensioning components 2 are arranged on the prestress ribs 12 between the tensioning lock ends 13 and the reinforced concrete bottom plate 11.
The power tensioning system 300 comprises eight power tensioning assemblies 3, each power tensioning assembly 3 is correspondingly arranged at two ends of four side walls of the reinforced concrete bottom plate 11, and each power tensioning assembly 3 is connected with each prestress tensioning assembly 2 located on the same side through two inhaul cables 31.
According to the prestressed concrete bearing plate with adjustable rigidity, the power tensioning assembly 3 can be used for tensioning the inhaul cable 31, the tensioning of the inhaul cable 31 can enable each prestressed tensioning assembly 2 to deform, and the prestressed tendons 12 are tensioned through the deformation of each prestressed tensioning assembly 2, so that the prestress can be tensioned gradually along with gradual increase of load in the static load test process, and the rigidity of the bearing plate can be adjusted gradually.
Further, four protective cases 400 are respectively provided on the outer sides of the four side walls of the reinforced concrete floor 11, and each protective case 400 is respectively installed on the outside of each prestress tensioning assembly 2 located on the same side for protecting each prestress tensioning assembly 2.
In some embodiments of the present utility model, the prestress tensioning assembly 2 includes a left stress cushion block 21, a right stress cushion block 22, two left support legs 23, two right support legs 24, an inner ring annular locking flap 25 and an annular counterforce ring 26, one end of each left support leg 23 is provided with a left arc end 231, and the other end of each left support leg 23 is provided with a left assembly block 232. One end of each right support leg 24 is provided with a right circular arc end 241, and the other end of each right support leg 24 is provided with a right fitting block 242. Two left arc grooves 211 matched with the left arc ends 231 are respectively arranged on the left stress cushion block 21, and two right arc grooves 221 matched with the right arc ends 241 are respectively arranged on the right stress cushion block 22. The right fitting blocks 242 are provided with arc fitting ends 243, and the left fitting blocks 232 are provided with arc fitting grooves 233 which are matched with the arc fitting ends 243. The two left arc ends 231 are respectively assembled with the two left arc grooves 211, the two arc assembly ends 243 are respectively assembled with the two arc assembly grooves 233, and the two right arc ends 241 are respectively assembled with the two right arc grooves 221, so that a quadrilateral structure is formed between the two left support legs 23 and the two right support legs 24. The annular counter-force ring 26 and the inner ring annular locking valve 25 are respectively arranged in the quadrilateral structure, through holes for the prestressed tendons 12 to pass through are respectively arranged on the left stress cushion block 21 and the right stress cushion block 22, the annular counter-force ring 26 is sleeved on the outer side of the inner ring annular locking valve 25, and the inner ring annular locking valve 25 is sleeved on the outer side of the prestressed tendons 12. That is, the end of the tendon 12 extends from the reinforced concrete floor 11, passes through the left stress pad 21, the inner ring annular locking flap 25 and the right stress pad 22 in sequence, and is connected with the tensioning locking end 13. The tensioning locking end 13 can be abutted against the right stress cushion block 22, and the left stress cushion block 21 can be abutted against the side wall of the reinforced concrete bottom plate 11. Due to the assembly mode of the left stress cushion block 21, the right stress cushion block 22, the two left support legs 23 and the two right support legs 24, the angle between the left support legs 23 and the right support legs 24 can be adjusted, so that the quadrilateral structure is deformed, and the tensioning of the prestressed tendons 12 is realized.
Specifically, the left stress cushion block 21 is composed of two symmetrical left half cushion blocks 21A, corresponding first T-shaped clamping grooves 212 are respectively arranged on each left half cushion block 21A, and first I-shaped locking blocks 27 are clamped in the corresponding two first T-shaped clamping grooves 212, so that locking between the two left half cushion blocks 21A is realized. The right stress cushion block 22 consists of two symmetrical right half cushion blocks 22A, and each right half cushion block 22A is respectively provided with a corresponding second T-shaped clamping groove 222, and the second I-shaped locking blocks 28 are clamped in the corresponding two second T-shaped clamping grooves 222, so that the two right half cushion blocks 22A are locked.
Specifically, the inner ring annular locking lobe 25 includes four arc locking lobes 251, a cylindrical housing structure can be formed by enclosing between the four arc locking lobes 251, a plurality of first circular barbs are annularly arranged on the inner side wall of the inner ring annular locking lobe 25, and the plurality of first circular barbs are sequentially arranged along the length direction of the inner ring annular locking lobe 25. A plurality of second circular barbs are arranged on the prestressed rib 12 corresponding to the annular locking valve 25 of the inner ring in a ring mode, and the plurality of second circular barbs are respectively arranged in sequence along the length direction of the prestressed rib 12. The inner side of the annular counterforce ring 26 is further provided with an elastic snap spring, and under the action of the elastic snap spring, the annular locking flap 25 of the inner ring can be locked with the second circular barb on the prestress rib 12 through the first circular barb.
Specifically, the left fitting block 232 is provided with a left upper cable through hole and a left lower cable through hole from top to bottom, and the right fitting block 242 is provided with a right upper cable through hole and a right lower cable through hole from top to bottom. The pull cables 31 comprise left upper pull cables, left lower pull cables, right upper pull cables and right lower pull cables, the left upper pull cables respectively penetrate through the left upper pull cable through holes, and left upper pull cable buckles 311 are respectively arranged on the outer sides of the left upper pull cables corresponding to the left assembly blocks 232. The left lower stay cables respectively penetrate through the left lower stay cable through holes, and left lower stay cable buckles 312 are respectively arranged on the outer sides of the left lower stay cables corresponding to the left assembly blocks 232. The right upper cable hooks 313 are provided on the outer sides of the right upper cables corresponding to the right fitting blocks 242, respectively. The right lower stay rope passes through each right lower stay rope through hole respectively, and the outside that corresponds each right assembly piece 242 on each right lower stay rope is equipped with right lower stay rope buckle 314 respectively.
In some embodiments of the present utility model, the power tensioning assembly 3 includes a fixed shaft 32, a cable winding sleeve 33, a torque amplifier 34, and a square bolt 35, one end of the fixed shaft 32 is fixedly connected with the side wall of the reinforced concrete floor 11, the cable winding sleeve 33 is rotatably mounted on the fixed shaft 32, one end of the torque amplifier 34 is fixedly connected with the cable winding sleeve 33, and the other end of the torque amplifier 34 is fixedly connected with the square bolt 35. That is, the square head bolt 35 can rotate with the torque amplifier 34, and the torque amplifier 34 increases the torque, thereby driving the rope reel 33 to rotate around the fixed shaft 32.
The two power tensioning assemblies 3 arranged on the same side of the reinforced concrete bottom plate 11 are respectively a first power tensioning assembly 3A and a second power tensioning assembly 3B, the free ends of the left upper stay rope and the right upper stay rope arranged on the same side are respectively connected with a stay rope winding shaft sleeve 33 in the first power tensioning assembly 3A in a winding manner, and the free ends of the left lower stay rope and the right lower stay rope arranged on the same side are respectively connected with a stay rope winding shaft sleeve 33 in the second power tensioning assembly 3B in a winding manner.
Thus, by applying an external force to the square bolt 35 to rotate it, the moment amplifier 34 increases the moment, thereby driving the cable winding sleeve 33 to rotate, the cable 31 connected to the cable winding sleeve 33 is tensioned thereby, and the tensioning of the cable 31 will drive the angle between the left support leg 23 and the right support leg 24 in each prestress tensioning assembly 2 to become larger, thereby tensioning the tendons 12.
When the prestress rib 12 stretches and lengthens, the first round barb on the inner ring annular locking flap 25 can be staggered with the second round barb on the prestress rib 12, and when the two are different by one annular barb, the annular counter-force ring 26 presses the inner ring annular locking flap 25 and the prestress rib 12 together through the elastic snap spring, so that the anchoring and locking of the prestress rib 12 are realized through the inner ring annular locking flap 25.
In some embodiments of the present utility model, the reinforced concrete floor 11 is provided with a low-friction prestressed duct through which the prestressed tendons 12 pass, and the low-friction prestressed duct is formed of a hollow steel pipe with smooth inner wall embedded in the reinforced concrete floor 11.
In some embodiments of the present utility model, the pre-stressing net 12 is comprised of a plurality of transverse and longitudinal pre-stressing tendons arranged in a staggered manner, wherein each of the transverse and longitudinal pre-stressing tendons is a tensile steel strand.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present utility model.
Claims (10)
1. A pre-stressed concrete load-bearing plate with adjustable rigidity, comprising:
The rectangular concrete structure bearing plate comprises a reinforced concrete bottom plate and a prestressed net arranged in the reinforced concrete bottom plate, wherein the prestressed net is formed by staggered arrangement of a plurality of prestressed tendons, and two ends of each prestressed tendon respectively penetrate through the reinforced concrete bottom plate and are connected with tensioning locking ends;
The prestress tensioning system comprises a plurality of prestress tensioning components which are in one-to-one correspondence with the tensioning locking ends, and the prestress tensioning components are arranged on the prestress tendons between the tensioning locking ends and the reinforced concrete bottom plate;
The power tensioning system comprises eight power tensioning assemblies, each power tensioning assembly is correspondingly arranged at two ends of four side walls of the reinforced concrete bottom plate, and each power tensioning assembly is connected with each prestress tensioning assembly located on the same side through two inhaul cables.
2. The adjustable-rigidity prestressed concrete compression plate according to claim 1, wherein four protective cases are respectively provided on the outer sides of four side walls of the reinforced concrete floor, and each of the protective cases is respectively installed on the outside of each of the prestressed tension members located on the same side.
3. The prestressed concrete pressure bearing plate with adjustable rigidity according to claim 1, wherein the prestressed tensioning assembly comprises a left stress cushion block, a right stress cushion block, two left support legs, two right support legs, an inner ring annular locking flap and an annular counter force ring, one end of each left support leg is respectively provided with a left arc end, the other end of each left support leg is respectively provided with a left assembly block, one end of each right support leg is respectively provided with a right arc end, the other end of each right support leg is respectively provided with a right assembly block, two left arc grooves matched with the left arc ends are respectively arranged on the left stress cushion block, two right arc grooves matched with the right arc ends are respectively arranged on the right stress cushion block, arc assembly ends are respectively arranged on the right assembly blocks, arc assembly grooves matched with the arc assembly ends are respectively arranged on the left assembly blocks, the two left arc ends are respectively correspondingly assembled with the two left arc grooves, the two assembly ends are respectively assembled with the two left arc grooves, the two counter force annular locking flaps are respectively arranged between the two annular support legs and the annular locking flap, the two counter force ring annular ribs are respectively sleeved on the left support cushion block and the outer side of the annular support ring, the two annular locking flaps are respectively arranged between the two annular support ribs and the annular locking flaps respectively, and the two annular counter force ribs are sleeved on the annular locking ribs respectively.
4. The prestressed concrete bearing plate with adjustable rigidity according to claim 3, wherein the left stress cushion block consists of two symmetrical left half cushion blocks, corresponding first T-shaped clamping grooves are respectively arranged on each left half cushion block, first I-shaped locking blocks are clamped in the corresponding two first T-shaped clamping grooves, the right stress cushion block consists of two symmetrical right half cushion blocks, corresponding second T-shaped clamping grooves are respectively arranged on each right half cushion block, and second I-shaped locking blocks are clamped in the corresponding two second T-shaped clamping grooves.
5. The prestressed concrete bearing plate with adjustable rigidity according to claim 3, wherein the inner ring annular locking valve comprises four arc locking valves, a cylindrical shell structure can be formed by enclosing the four arc locking valves, a first circular barb is arranged on the inner side wall of the inner ring annular locking valve, a second circular barb is arranged on the prestressed rib at the position corresponding to the inner ring annular locking valve, the inner ring annular locking valve can be locked with the second circular barb on the prestressed rib through the first circular barb, and an elastic snap spring is further arranged on the inner side of the annular counterforce ring.
6. The prestressed concrete compression plate with adjustable rigidity according to claim 3, wherein a left upper cable through hole and a left lower cable through hole are respectively arranged on each left assembly block from top to bottom, a right upper cable through hole and a right lower cable through hole are respectively arranged on each right assembly block from top to bottom, the cables comprise a left upper cable, a left lower cable, a right upper cable and a right lower cable, the left upper cable respectively penetrates through each left upper cable through hole, a left upper cable buckle is respectively arranged on the left upper cable corresponding to the outer side of each left assembly block, the left lower cable respectively penetrates through each left lower cable through hole, a left lower cable buckle is respectively arranged on the left lower cable corresponding to the outer side of each left assembly block, a right upper cable buckle is respectively arranged on the right upper cable corresponding to the outer side of each right assembly block, and a right lower cable buckle is respectively arranged on the right lower cable corresponding to the outer side of each right assembly block.
7. The adjustable stiffness prestressed concrete load-bearing plate of claim 6, wherein the power tensioning assembly comprises a fixed shaft, a guy wire reel sleeve, a torque amplifier and a square bolt, wherein one end of the fixed shaft is fixedly connected with the side wall of the reinforced concrete bottom plate, the guy wire reel sleeve is rotatably mounted on the fixed shaft, one end of the torque amplifier is fixedly connected with the guy wire reel sleeve, and the other end of the torque amplifier is fixedly connected with the square bolt.
8. The adjustable-rigidity prestressed concrete pressure-bearing plate according to claim 7, wherein two power tensioning assemblies located on the same side of the reinforced concrete bottom plate are respectively a first power tensioning assembly and a second power tensioning assembly, the free ends of the left upper stay and the right upper stay located on the same side are respectively connected with the stay reel sleeve in the first power tensioning assembly in a winding manner, and the free ends of the left lower stay and the right lower stay located on the same side are respectively connected with the stay reel sleeve in the second power tensioning assembly in a winding manner.
9. The adjustable-rigidity prestressed concrete bearing plate according to claim 1, wherein a low-friction prestressed duct through which the prestressed tendons pass is provided on the reinforced concrete floor, and the low-friction prestressed duct is composed of a hollow steel pipe pre-buried in the reinforced concrete floor.
10. The adjustable-rigidity prestressed concrete bearing plate according to claim 1, wherein the prestressed net is formed by arranging a plurality of transverse prestressed tendons and longitudinal prestressed tendons in a staggered manner, and the transverse prestressed tendons and the longitudinal prestressed tendons are tensile steel bundles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420355007.4U CN222349635U (en) | 2024-02-26 | 2024-02-26 | A prestressed concrete bearing plate with adjustable stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420355007.4U CN222349635U (en) | 2024-02-26 | 2024-02-26 | A prestressed concrete bearing plate with adjustable stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222349635U true CN222349635U (en) | 2025-01-14 |
Family
ID=94207996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420355007.4U Active CN222349635U (en) | 2024-02-26 | 2024-02-26 | A prestressed concrete bearing plate with adjustable stiffness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222349635U (en) |
-
2024
- 2024-02-26 CN CN202420355007.4U patent/CN222349635U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4275537A (en) | Tension members | |
| US9021757B2 (en) | Tower construction and a method for erecting the tower construction | |
| CN100535367C (en) | Clamp, self-advancing climbing device, and method of coupling same to a tubular | |
| ES2911887T3 (en) | System and method for installing a tensioning tendon in a wind turbine tower | |
| DK2738322T3 (en) | Tower construction | |
| US20210222677A1 (en) | Foundation for a windmill | |
| US20150143765A1 (en) | Connection between a wind turbine tower and its foundation | |
| CN108506169B (en) | Method and structure for heightening prestress stay wire type tower of wind turbine generator | |
| ES2885020T3 (en) | Lifting method of a tethered wind turbine tower | |
| CN101614083B (en) | Clamp, self-propelled climbing device and method for connecting clamp and tubular piece | |
| CN222349635U (en) | A prestressed concrete bearing plate with adjustable stiffness | |
| CN113047438B (en) | Cable net assembly, building and building construction method | |
| JP6569103B2 (en) | Basic structure of tower structure | |
| US12071780B2 (en) | Method for introducing prestressed elements into a tower, assembly device, unwinding device and adapter device | |
| CN218758965U (en) | Top bracing type reinforcing device for carbon fiber cable reinforced member | |
| JP3943527B2 (en) | Concrete storage tank and its construction method | |
| CN212104108U (en) | Recoverable assembled prestressing force suspension cable foundation ditch support piece | |
| CN117702913B (en) | Middle large-opening four-corner floor arch shell structure system and construction method thereof | |
| CN117248626B (en) | Construction method of ultra-large span prestressed tensile beam | |
| CN222542137U (en) | A high-strength hollow sandwich concrete rod structure | |
| CN219653521U (en) | Main cable empty cable degree of losing of flat-pull cable bridge adjusts structure | |
| CN214089423U (en) | Hoisting tower for arch bridge | |
| CN222139751U (en) | New bidirectional limit cable connecting beam device | |
| CN117166618B (en) | Arch shell structure system and construction method thereof | |
| JP7378021B2 (en) | Floating foundation structure for offshore structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |