CN113981832B - Upper span construction safety device of cast-in-situ concrete beam bracket and construction method thereof - Google Patents
Upper span construction safety device of cast-in-situ concrete beam bracket and construction method thereof Download PDFInfo
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- CN113981832B CN113981832B CN202111342447.3A CN202111342447A CN113981832B CN 113981832 B CN113981832 B CN 113981832B CN 202111342447 A CN202111342447 A CN 202111342447A CN 113981832 B CN113981832 B CN 113981832B
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- 238000010276 construction Methods 0.000 title claims abstract description 93
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 99
- 239000010959 steel Substances 0.000 claims abstract description 99
- 238000009826 distribution Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 239000011120 plywood Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002360 explosive Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 208000002173 dizziness Diseases 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to a cast-in-situ concrete beam bracket upper span construction safety device and a construction method thereof, which are characterized by comprising the following steps: the steel pipe pile columns are arranged on two sides of the lane, and are arranged at intervals along the vehicle flow direction; the slide way is arranged along the traffic flow direction and is fixed on the steel pipe pile columns, and the slide way is connected with a plurality of steel pipe pile columns; the protection plate is arranged on the slide way, the protection plate can slide along the slide way, and the protection plate is arranged above the lane, so that traffic cannot be blocked during construction of the cast-in-situ beam, and potential safety hazards to road driving can be prevented.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a cast-in-situ concrete beam bracket upper span construction safety device and a construction method thereof.
Background
At present, when a bridge spans an expressway such as national roads and expressways, the influence on traffic under the bridge can be reduced because the traffic flow is large and the traffic pressure is high, and the beam part is generally designed into continuous beam basket construction or precast beam erection construction.
In the related technology, when the bridge is designed into a railway large-span heavy-load railway cable-stayed bridge due to the special geographic environment, the side span is generally constructed by adopting a full framing when the concrete cast-in-situ beam is used as an anchor span beam, and the steel pipe pile bracket is generally used for construction when the traffic requirement exists.
But need temporarily seal the road when hoist and mount steel-pipe pile stand and beam portion hoist and mount are laid the construction at this moment, cause the jam and bring very big influence to traffic safety to the traffic easily, in steel-pipe pile and support welding process, electric welding operation causes very big influence to the surrounding environment to cause very big potential safety hazard to the road driving.
Disclosure of Invention
The embodiment of the invention provides a construction safety device for a cast-in-situ concrete beam bracket and a construction method thereof, which are used for solving the problems that traffic is easy to be blocked and a great potential safety hazard is caused to road driving during cast-in-situ beam construction in the related art.
In a first aspect, a cast-in-place concrete beam support midspan construction safety device is provided, comprising: the steel pipe pile columns are arranged on two sides of the lane, and are arranged at intervals along the vehicle flow direction; the slide way is arranged along the traffic flow direction and is fixed on the steel pipe pile columns, and the slide way is connected with a plurality of steel pipe pile columns; the protection plate is arranged on the slide way, can slide along the slide way and is used for being arranged above the lane.
In some embodiments, the cast-in-place concrete beam support midspan construction safety device further comprises: the steel pipe pile column is installed on the expansion foundations, and expansion joints are arranged between two adjacent expansion foundations along the vehicle flow direction.
In some embodiments, the enlarged foundation is provided with a guard rail along the traffic direction, and the guard rail is mounted on a side edge of the steel pipe pile column.
In some embodiments, the enlarged base is provided with a plurality of first pre-buried holes, and the protective fence comprises: at least two square steels, wherein the square steels are inserted into the first embedded holes; and the two opposite sides of the canvas are respectively fixed on the two square steels.
In some embodiments, the enlarged foundation is provided with a plurality of second pre-buried holes, the second pre-buried holes are arranged between two adjacent steel pipe pile columns, and the second pre-buried holes are used for installing an expanding agent or explosive to dismantle the enlarged foundation.
In some embodiments, the enlarged foundation is embedded with an embedded part, the steel pipe pile column is fixed with the embedded part, and the steel pipe pile column is connected with the embedded part through a first stiffening plate.
In some embodiments, a sand cylinder is arranged at the top end of the steel pipe pile upright post, a distribution beam is arranged on the sand cylinder, a cast-in-situ beam support system is arranged on the distribution beam, the cast-in-situ beam support system supports a cast-in-situ beam template system, and the cast-in-situ beam template system is used for casting a cast-in-situ beam.
In some embodiments, the slideway is obliquely arranged on the bailey beam in the horizontal projection direction, the slideway is perpendicular to the bailey beam in the vertical section direction, and the length of the distribution beam is gradually shortened from the direction close to the slideway.
In some embodiments, pulleys are respectively mounted at two ends of the protection plate, the pulleys can slide along the slide ways, and the pulleys are provided with brake structures for fixing the pulleys on the slide ways.
In a second aspect, a construction method of a construction safety device for a cast-in-situ concrete beam bracket upper span is provided, which comprises the following steps: installing a cast-in-situ concrete beam bracket upper span construction safety device above the lane; moving a protection plate to a construction position and fixing the protection plate; and after the construction is finished, the protection plate is moved to the next construction position.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a construction safety device for a cast-in-situ concrete beam support and a construction method thereof, wherein a plurality of steel pipe pile columns are arranged at two sides of a lane, the steel pipe pile columns are arranged at intervals along the direction of traffic flow, slide ways are arranged on the side walls of the steel pipe pile columns, protection plates are arranged on the slide ways, the protection plates can slide along the slide ways, are arranged above the lane, can be moved to a construction position when being required to be installed or removed from the lane, can be prevented from being influenced by welding sparks, bolts, concrete cement paste and the like falling onto the lane in the construction process, can be moved to a next construction position after the construction of the current position is finished, and can continuously play a role of preventing the influence on the traffic safety of a road.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a floor plan view of a construction safety device for an upper span of a cast-in-situ concrete beam bracket according to an embodiment of the present invention;
FIG. 2 is a cross-sectional layout view of a construction safety device for a cast-in-place concrete beam bracket;
Fig. 3 is a schematic view of an enlarged foundation structure of a construction safety device for an upper span of a cast-in-situ concrete beam bracket according to an embodiment of the present invention;
Fig. 4 is a plan view of a cast-in-situ beam support system of a construction safety device for an upper span of a cast-in-situ concrete beam support according to an embodiment of the present invention;
Fig. 5 is a flow chart of steps of a construction method of a construction safety device for an upper span of a cast-in-situ concrete beam bracket according to an embodiment of the present invention.
In the figure:
1. expanding a foundation; 2. a first pre-buried hole; 3. a protective fence; 4. a steel pipe pile column; 41. an embedded part; 42. a first stiffening plate; 43. a column head structure; 5. a protection plate; 6. a slideway; 7. a pulley; 8. a second stiffening plate; 9. a coupling system; 10. a second pre-buried hole; 11. a sand cylinder; 12. a distribution beam; 13. bailey beam; 14. cast-in-situ beam body; 15. a protective rail; 16. bottom die bamboo plywood; 17. and a side mold support system.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a construction safety device for a cast-in-situ concrete beam bracket and a construction method thereof, which can solve the problems that traffic is easy to be blocked and a great potential safety hazard is caused to road driving during cast-in-situ beam construction in the related art.
Referring to fig. 1 and 2, a construction safety device for a cast-in-situ concrete beam bracket, provided by the embodiment of the invention, may include: the steel pipe pile columns 4 can be arranged on two sides of a lane, and the steel pipe pile columns 4 can be arranged at intervals along the vehicle flow direction; the slide ways 6 can be arranged along the vehicle flow direction, the slide ways 6 can be fixed on the steel pipe pile columns 4, in the embodiment, two slide ways 6 can be arranged, the two slide ways 6 are respectively welded and fixed on the steel pipe pile columns 4 on two sides of a lane and are positioned on the side wall of the steel pipe pile column 4 close to the lane, in other embodiments, other numbers of slide ways 6 can be installed according to the actual condition of a construction site, the slide ways 6 can be welded and fixed with the steel pipe pile column 4 through the second stiffening plate 8, the stability of the welded and fixed slide ways 6 can be further improved, in other embodiments, the slide ways 6 can be welded and fixed in other forms such as bracket welding, the slide ways 6 can connect a plurality of steel pipe pile columns 4, and the steel pipe pile columns 4 can be installed more stably; the guard plate 5, guard plate 5 can install in slide 6, in this embodiment, guard plate 5 comprises a plurality of channel-section steel and a plurality of steel sheet welding, adopt seamless butt welding connection between steel sheet and the steel sheet, channel-section steel adopts intermittent welding connection with the steel sheet, the both ends of guard plate 5 can be installed respectively in a slide 6, guard plate 5 can slide along slide 6, guard plate 5 can set up in the top of lane, when the cast-in-place roof beam is pour in the lane top to needs, can remove guard plate 5 to the construction position, prevent that welding sparks, bolt and concrete grout etc. in the in-process of construction from dropping to the lane and causing the influence on traffic, the back is accomplished in current position construction can remove guard plate 5 to next construction position, continue to play the effect that prevents influence road traffic safety, consequently, can not cause the jam to the traffic when cast-in-place roof beam is under construction, and can prevent to cause the potential safety hazard to the road driving.
Referring to fig. 1 to 3, in some embodiments, the cast-in-place concrete beam cradle midspan construction safety device may further include: the plurality of expansion foundations 1, the plurality of expansion foundations 1 can be arranged at two sides of a lane, the plurality of expansion foundations 1 at one side of the lane can be arranged along the direction of traffic flow, and the plurality of expansion foundations 1 are designed according to the stress requirement to meet the shearing resistance of cast-in-situ Liang Hezai on the expansion foundations 1, in the embodiment, the height of the expansion foundations 1 is 1.5 meters which is higher than the height of a tire of a vehicle which can allow the road to run, the requirement that the steel pipe pile upright post 4 is not influenced after various vehicles strike the expansion foundations 1 carelessly can be met, in other embodiments, other height forms can be adopted according to the actual situation, the row spacing of the plurality of expansion foundations 1 at two sides of the lane can meet the national requirement of the minimum width of the double-lane road, in other embodiments, the arrangement structure of a plurality of expansion foundations 1 can be other modes, steel pipe pile stand 4 can be installed in expansion foundations 1, in this embodiment, three steel pipe pile stand 4 can be fixed on expansion foundations 1, in other embodiments, other quantity of steel pipe pile stand 4 can be fixed on expansion foundations 1, expansion joints are arranged between two adjacent expansion foundations 1 along the traffic direction, in this embodiment, 10cm expansion joint gaps can be arranged between two adjacent expansion foundations 1 provided with steel pipe pile stand 4, in other embodiments, expansion joints can be set to other lengths, steel pipe pile stand 4 can be fixed more stably by arranging a plurality of expansion foundations 1, expansion joints can be reserved for expansion foundations 1, and expansion foundation 1 cracking caused by expansion of expansion foundations 1 is avoided.
Referring to fig. 2 and 3, in some embodiments, the enlarged foundation 1 may be provided with a guard rail 3 along the traffic direction, and the guard rail 3 may be located at a side edge of the steel pipe pile column 4, in this embodiment, a plurality of guard rails 3 may be provided, one side of each steel pipe pile column 4, which is close to the lane, is provided with a guard rail 3, when the steel pipe pile column 4 is welded and fixed, welding operation needs to be performed on the steel pipe pile column 4 beside the lane, the guard rail 3 may prevent sparks generated during welding from being sputtered onto the lane, and simultaneously may avoid light pollution generated by electric welding from causing dizziness to driving drivers, may further avoid causing blockage to road traffic, and may prevent potential safety hazards to road driving.
Referring to fig. 2 and 3, in some embodiments, the enlarged foundation 1 may be provided with a plurality of first pre-buried holes 2, in this embodiment, the depth of the first pre-buried holes 2 should meet the anti-capsizing requirement of the protection fence 3, one enlarged foundation 1 may be provided with 12 first pre-buried holes 2, the 12 first pre-buried holes 2 may be divided into three groups, each group of 4 first pre-buried holes 2,4 first pre-buried holes 2 may be uniformly distributed around the steel pipe pile column 4, in other embodiments, other numbers of first pre-buried holes 2 may be provided, and the protection fence 3 may include: at least two square steels, one square steel can be inserted into one first pre-buried hole 2, in this embodiment, the cross section size of the square steel is matched with the diameter of the first pre-buried hole 2, and the length of the square steel is 2 meters; canvas, the relative both sides of canvas can be fixed in two square steel respectively, and in this embodiment, the size of canvas is greater than 1.52 meters, and canvas and two square steel can constitute one protection rail 3, above-mentioned simple structure also can play the check simultaneously and keep off the effect that welding spark and check kept off the light spread, strengthens the safety degree and also can save construction cost.
Referring to fig. 3, in some embodiments, the enlarged foundation 1 may be provided with a plurality of second pre-buried holes 10, the second pre-buried holes 10 may be disposed between two adjacent steel pipe pile columns 4, when the cast-in-situ concrete beam support is removed and the construction safety device is straddled, the second pre-buried holes 10 may be provided with an expanding agent or explosive to remove the enlarged foundation 1, in this embodiment, the diameter of the second pre-buried holes 10 may be 110mm, when the enlarged foundation 1 is poured with concrete, the second pre-buried holes 10 may be made of PVC pipe, the depth of the second pre-buried holes 10 may reach the bottom surface of the enlarged foundation 1, and the second pre-buried holes 10 may be used as a hole structure for static cracking charge when the enlarged foundation 1 is removed in the later stage.
Referring to fig. 1 and 2, in some embodiments, an embedded part 41 may be embedded in an enlarged foundation 1, the bottom of a steel pipe pile column 4 may be welded and fixed with the embedded part 41, the steel pipe pile column 4 may be connected with the embedded part 41 through a first stiffening plate 42, in this embodiment, the bottom edge of the steel pipe pile column 4 is welded with the top surface of the embedded part 41, the first stiffening plate 42 is a steel plate, 16 first stiffening plates 42 are uniformly arranged around the steel pipe pile column 4 and the embedded part 41, one side of the first stiffening plate 42 is welded with the embedded part 41, the other side of the first stiffening plate 42 is welded with the side wall of the steel pipe pile column 4, a stiffening structure may be formed, so that the bottom of the steel pipe pile column 4 is welded and fixed more stably, and in other embodiments, other numbers of first stiffening plates 42 may be arranged according to the diameter or stress requirements of the steel pipe pile column 4.
Referring to fig. 1 and 2, in some embodiments, two steel pipe pile columns 4 adjacent in the vehicle flow direction may be connected by a connection system 9, and the connection system 9 may enclose a triangle structure with the adjacent steel pipe pile columns 4, in this embodiment, the connection system 9 includes two straight rods, one end of each straight rod is fixed with a side wall of one steel pipe pile column 4, the other end of each straight rod is fixed with a side wall of the other steel pipe pile column 4, an inclined rod may be disposed between the two straight rods, one end of each inclined rod is fixed at a connection part between one straight rod and one steel pipe pile column 4, the other end of each inclined rod is fixed at a connection part between the other rod and the other steel pipe pile column 4, and one straight rod, one inclined rod and one steel pipe pile column 4 may enclose a triangle structure, which may increase stability of the installation structure of the steel pipe pile column 4.
Referring to fig. 1, 2 and 4, in some embodiments, the top end of the steel pipe pile column 4 may be provided with a sand cylinder 11, after the elevation is adjusted, a distribution beam 12 may be installed, in this embodiment, the distribution beam 12 may have various length specifications, the distribution beam 12 may be reasonably installed according to the length of the distribution beam 12, a side mold support system 17 and a beret beam 13 may be installed on the distribution beam 12, a bottom mold bamboo plywood 16 may be installed on the beret beam 13, the side mold support system 17 and the bottom mold bamboo plywood 16 may be used for pouring the cast-in-place beam body 14, when the side mold support system 17 and the beret beam 13 are installed and removed, the protection plate 5 may be moved to a construction position, after the construction of the current position is completed, the protection plate 5 may be moved to a next construction position, so as to continue to play a role in preventing the influence on road traffic, and may not cause traffic jam during the construction of the cast-in-place beam, and may be prevented from causing potential safety hazards to road driving.
Referring to fig. 4, in some embodiments, the slideway 6 may be obliquely disposed on the beret beam 13 in the horizontal projection direction, the slideway 6 may be perpendicular to the beret beam 13 in the vertical section direction, and the distribution beam adopts a separated design according to the requirement of the concentrated stress system of the cast-in-situ beam, and the length of the distribution beam 12 becomes gradually shorter from the direction close to the slideway 6, so that the structure at the slideway 6 can be further reinforced.
Referring to fig. 1 and 2, in some embodiments, two ends of the protection plate 5 may be respectively provided with a pulley 7, in this embodiment, two ends of the protection plate 5 may be respectively provided with two pulleys 7, the pulleys 7 may be firmly connected with bolt holes formed at corresponding positions of the protection plate 5 through 4 bolt holes of the top panel by bolts, and may also be directly fixed by welding, and the pulleys 7 at two ends of the protection plate 5 are symmetrically arranged about a central axis of the protection plate 5, the protection plate 5 may slide on the slideway 6 through the pulleys 7, the pulleys 7 may be provided with a brake structure, in this embodiment, the brake structure may be a flat-top brake device, and in other embodiments, the brake structure may fix the pulleys 7 at a construction position by setting an additional shoveling wedge, so that the protection plate 5 may play a protective role for the construction position.
Referring to fig. 1 and 2, in some embodiments, the cast-in-situ concrete beam support upper span construction safety device may be installed in the cast-in-situ beam support system, and the cast-in-situ concrete beam support upper span construction safety device may be installed above a roadway, and the cast-in-situ concrete beam support upper span construction safety device may play a role in protecting the driving safety of the roadway in the construction process of the cast-in-situ beam support system, may prevent something from falling into the roadway in the construction process, and may prevent potential safety hazards to road driving.
Referring to fig. 5, a construction method of a construction safety device for a cast-in-situ concrete beam bracket upper span according to an embodiment of the present invention may include the following steps:
s1: and installing a construction safety device on the cast-in-situ concrete beam bracket above the lane.
In some embodiments, the construction area of the enlarged foundation 1 can be cleaned, the laying out is performed according to the design position, the embedded part 41 is embedded according to the design position before the concrete is poured, the die for manufacturing the first embedded hole 2 and the second embedded hole 10 is installed, the enlarged foundation 1 is prepared by pouring the concrete, the protection fence 3 is installed in the first embedded hole 2 close to one side of the road, the steel pipe pile column 4 and the embedded part 41 are welded and fixed, the slideway 6 is welded and installed at the design elevation position of the steel pipe pile column 4, the steel pipe pile column 4 and the slideway 6 are welded and fixed by utilizing steel plate stiffening, and the protection plate 5 is installed on the slideway 6.
S2: the protection plate 5 is moved to the construction position and the protection plate 5 is fixed.
S3: after the construction is completed, the protection plate 5 is moved to the next construction position.
In some embodiments, the protection plate 5 can be moved to an area to be welded, the protection plate 5 is temporarily fixed by wedge blocks after sliding in place, then the connection system 9 between two adjacent steel pipe pile columns 4in the welding area and the column head structure 43 of the steel pipe pile columns 4in the welding area are started, the sand cylinder 11 is installed, after all welding seams in the welding area are welded, the protection plate 5 is slid to the next construction area, the step is repeated until the connection system 9 between all two adjacent steel pipe pile columns 4 and the column head structure 43 of all steel pipe pile columns 4 are welded, the distribution beam 12 is installed according to the drawing requirements, the protection plate 5 is moved to the construction area for laying the bailey beam 13, the protection plate 5 is fixed, the bailey beam 13 is erected, bolts, relevant reinforcing vertical rods and other facilities are installed, then bamboo glue plates in the construction area are laid, after the laying and installation work of the construction area is completed, the protection shielding panel is slid to the next construction area, the step is repeated until all the bailey beam 13 and the bamboo glue plates are completely laid, finally the cast-in-situ bottom die and the side die system is installed, the cast-in-situ, and the rail support system is installed according to the design and the requirements, and the installation of the rail support system is completed.
The invention provides a cast-in-situ concrete beam bracket upper span construction safety device and a construction method thereof, wherein the construction method comprises the following steps:
Because a plurality of expansion foundations 1 can be arranged on two sides of a lane, and a plurality of expansion foundations 1 can be arranged on one side of the lane along the traffic direction, a protective fence 3 can be arranged on the expansion foundations 1 along the traffic direction, and the protective fence 3 can be positioned on one side of the steel pipe pile column 4, when the steel pipe pile column 4 is welded and fixed, the protective fence 3 can prevent sparks generated during welding from sputtering the lane and avoid light pollution caused by electric welding from causing dizziness to driving drivers, can further avoid blocking on road traffic, and can prevent potential safety hazards from being caused to road driving.
Because a plurality of expansion foundations 1 can be arranged on two sides of a lane, a plurality of steel pipe pile columns 4 can be welded and fixed on the expansion foundations 1, a slide way 6 can be arranged along the traffic flow direction, the slide way 6 can be fixed on the steel pipe pile columns 4, the height of the slide way 6 from the ground is more than 5 meters, the clearance meets the requirements of various vehicle heights, the slide way 6 is positioned on the side wall, close to the lane, of the steel pipe pile columns 4, two ends of a protection plate 5 can be respectively arranged on one slide way 6, the protection plate 5 can slide along the slide way 6, the protection plate 5 can be arranged above the lane, when a cast-in-place beam is required to be poured above the lane, the protection plate 5 can be moved to a construction position, the influence on traffic caused by the welding, bolts, concrete cement paste and the like in the process of spark construction can be prevented from falling onto the lane, after the construction of the current position is completed, the protection plate 5 can be moved to the next construction position, the effect of preventing the influence on the road traffic is continuously achieved, and therefore the road traffic cannot be blocked when the cast-in-place beam is constructed, and potential safety hazards on the road can be prevented.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a root … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a cast-in-place concrete beam support goes up and strides construction safety device which characterized in that, it includes:
the steel pipe pile columns (4) are arranged on two sides of a lane, and the steel pipe pile columns (4) are arranged at intervals along the traffic flow direction;
The slide way (6) is arranged along the traffic direction, the slide way (6) is fixed on the steel pipe pile upright post (4) and is positioned on the side wall of the steel pipe pile upright post (4) close to a lane, the slide way (6) is connected with a plurality of the steel pipe pile upright posts (4), and the slide way (6) is welded and fixed with the steel pipe pile upright posts (4) through a second stiffening plate (8);
The protection plate (5) is arranged on the slideway (6), the protection plate (5) can slide along the slideway (6), and the protection plate (5) is arranged above the lane;
the construction safety device of the cast-in-situ concrete beam bracket upper span further comprises:
the steel pipe pile comprises a plurality of expansion foundations (1), wherein the expansion foundations (1) are arranged on two sides of a lane, the steel pipe pile columns (4) are installed on the expansion foundations (1), and expansion joints are arranged between two adjacent expansion foundations (1) along the vehicle flow direction;
The top end of the steel pipe pile upright column (4) is provided with a sand cylinder (11), a distribution beam (12) is arranged on the sand cylinder (11), a side die supporting system (17) and a bailey beam (13) are respectively arranged on the distribution beam (12), a bottom die bamboo plywood (16) is arranged on the bailey beam (13), and the side die supporting system (17) and the bottom die bamboo plywood (16) are used for pouring a cast-in-place beam body (14);
The slide way (6) is obliquely arranged on the bailey beam (13) in the horizontal projection direction, the slide way (6) is perpendicular to the bailey beam (13) in the vertical section direction, and the length of the distribution beam (12) is gradually shortened from the direction close to the slide way (6).
2. The cast-in-place concrete beam holder up-span construction safety device according to claim 1, wherein:
the enlarged foundation (1) is provided with a protective fence (3) along the vehicle flow direction, and the protective fence (3) is mounted on the side edge of the steel pipe pile column (4).
3. The construction safety device for the cast-in-situ concrete beam support upper span according to claim 2, wherein the enlarged foundation (1) is provided with a plurality of first pre-buried holes (2), and the protective fence (3) comprises:
At least two square steels, wherein the square steels are inserted into the first pre-buried holes (2);
And the two opposite sides of the canvas are respectively fixed on the two square steels.
4. The cast-in-place concrete beam holder up-span construction safety device according to claim 1, wherein:
The expansion foundation (1) is provided with a plurality of second pre-buried holes (10), the second pre-buried holes (10) are arranged between two adjacent steel pipe pile columns (4), and the second pre-buried holes (10) are used for installing an expanding agent or removing explosive from the expansion foundation (1).
5. The cast-in-place concrete beam holder up-span construction safety device according to claim 1, wherein:
The steel pipe pile foundation is characterized in that an embedded part (41) is embedded in the enlarged foundation (1), the steel pipe pile column (4) is fixed with the embedded part (41), and the steel pipe pile column (4) is connected with the embedded part (41) through a first stiffening plate (42).
6. The cast-in-place concrete beam holder up-span construction safety device according to claim 1, wherein:
The two ends of the protection plate (5) are respectively provided with a pulley (7), the pulleys (7) can slide along the slide way (6), the pulleys (7) are provided with a braking structure, and the braking structure is used for fixing the pulleys (7) on the slide way (6).
7. The construction method of the cast-in-situ concrete beam bracket upper span construction safety device is characterized by comprising the following steps of:
installing the cast-in-situ concrete beam support midspan construction safety device according to any one of claims 1 to 6 above a roadway;
Moving a protection plate to a construction position and fixing the protection plate;
and after the construction is finished, the protection plate is moved to the next construction position.
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| CN202111342447.3A CN113981832B (en) | 2021-11-12 | 2021-11-12 | Upper span construction safety device of cast-in-situ concrete beam bracket and construction method thereof |
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| CN207091919U (en) * | 2017-06-13 | 2018-03-13 | 浙江交工集团股份有限公司 | A kind of cast-in-situ box girder door opening formula supporting construction |
| CN112726426A (en) * | 2021-02-25 | 2021-04-30 | 中交一公局集团有限公司 | Novel movable protective shed of bracket and steel pipe column combined gantry type |
| CN216379170U (en) * | 2021-11-12 | 2022-04-26 | 中铁大桥局集团有限公司 | Construction safety device strides on cast-in-place concrete beam support |
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| KR20090017342A (en) * | 2007-08-14 | 2009-02-18 | 고려개발 주식회사 | Duplex bridge type overpass and construction method |
| CN103469733B (en) * | 2013-09-23 | 2015-09-16 | 中建五局土木工程有限公司 | A kind of from falling molding box joist steel Guan Beilei door opening support and bearing method thereof |
| CN205954489U (en) * | 2016-08-23 | 2017-02-15 | 中铁二十一局集团第六工程有限公司 | Stride cast -in -place space of business line steel structure construction protection on bridge and move movable support |
| CN109403169A (en) * | 2018-10-26 | 2019-03-01 | 中国十七冶集团有限公司 | A kind of interim door opening of municipal administration bridge construction |
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Patent Citations (3)
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|---|---|---|---|---|
| CN207091919U (en) * | 2017-06-13 | 2018-03-13 | 浙江交工集团股份有限公司 | A kind of cast-in-situ box girder door opening formula supporting construction |
| CN112726426A (en) * | 2021-02-25 | 2021-04-30 | 中交一公局集团有限公司 | Novel movable protective shed of bracket and steel pipe column combined gantry type |
| CN216379170U (en) * | 2021-11-12 | 2022-04-26 | 中铁大桥局集团有限公司 | Construction safety device strides on cast-in-place concrete beam support |
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| CN113981832A (en) | 2022-01-28 |
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