CN221297595U - Bent cap construction operation platform with bailey beam as support girder - Google Patents
Bent cap construction operation platform with bailey beam as support girder Download PDFInfo
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- CN221297595U CN221297595U CN202322508101.7U CN202322508101U CN221297595U CN 221297595 U CN221297595 U CN 221297595U CN 202322508101 U CN202322508101 U CN 202322508101U CN 221297595 U CN221297595 U CN 221297595U
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 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
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a capping beam construction operation platform taking a bailey beam as a bracket main beam. An operation platform is arranged on the side face of a cap beam bailey beam support, a bailey beam vertical rod phi 40 connecting hole is connected with bracket angle steel through bolts to integrally process a main beam and the operation platform, a secondary beam is placed on the operation platform after the bailey beam main beam is installed in place, and finally a template system is installed. The girder and the operation platform are processed into integral hoisting on the ground, so that the bracket mounting efficiency is improved, the bracket mounting overhead operation time is shortened, and the distribution beam profile steel engineering quantity is saved.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a capping beam construction operation platform taking a bailey beam as a bracket main beam.
Background
The capping beam refers to a cross beam, also called a capping beam, arranged at the top of the bent pile pier for supporting, distributing and transmitting the load of the upper structure. And arranging a beam of reinforced concrete or less reinforced concrete on the bridge pier (platform) or the row pile. The main function is to support the bridge superstructure and to transfer the full load to the substructure.
The bent cap construction mainly comprises a floor support method, a steel bar method and a hoop method, and the main structure comprises a supporting structure, a dropping device, a main beam, a secondary beam, an operation platform and a template system. The traditional capping beam support construction girder is I-steel or a Bailey beam, a secondary beam is placed on the girder, and an operation platform is arranged at the overhanging position of the secondary beam. The traditional capping beam bracket construction method has no operation platform when the secondary beam is installed; the operating platform after the secondary beam is installed has the risk of overturning the asymmetrically installed distribution beam; the high-altitude operation safety risk of the operator for fixing the operation platform is high.
Disclosure of utility model
Therefore, in order to solve the defects, the utility model provides a bent cap construction operation platform taking the bailey beam as a bracket main beam. An operation platform is arranged on the side face of a cap beam bailey beam support, a bailey beam vertical rod phi 40 connecting hole is connected with bracket angle steel through bolts to integrally process a main beam and the operation platform, a secondary beam is placed on the operation platform after the bailey beam main beam is installed in place, and finally a template system is installed. The girder and the operation platform are processed into integral hoisting on the ground, so that the bracket mounting efficiency is improved, the bracket mounting overhead operation time is shortened, and the distribution beam profile steel engineering quantity is saved.
The utility model is realized in such a way, and constructs a bent cap construction operation platform taking the bailey beam as a bracket main beam, which is characterized in that; the steel comprises a bailey beam and bracket angle steel; the two are connected through bolts, and platform guardrails are arranged on the bracket angle steel.
The bent cap construction operation platform taking the bailey beam as the bracket main beam is characterized in that; the bailey beam is formed by splicing beam sheets, safety bolts are installed after the beam sheets are connected by pins, and reinforcing chords are installed on the bailey beam sheets.
The bent cap construction operation platform taking the bailey beam as the bracket main beam is characterized in that; the angle steel corbel is provided with a horizontal rod and an inclined rod, which are manufactured by welding 75 x 6 angle steel respectively, the end head of the angle steel is drilled with a hole with the diameter phi 40, and the vertical rod supporting frame corresponding to the bailey beam is also drilled with a hole with the diameter phi 40, and the two are connected by M36 x 150 bolts.
The bent cap construction operation platform taking the bailey beam as the bracket main beam is characterized in that; phi 20 steel bars are welded and installed on bracket angle steel according to a 30cm interval, and 3mm pattern steel plates are paved on the steel bars to serve as platform bottom plates.
The bent cap construction operation platform taking the bailey beam as the bracket main beam is characterized in that; the platform guardrail comprises upright post steel pipes, cross bar steel pipes and wire meshes, wherein the upright posts are phi 48 x 3.5mm steel pipes, the length of each upright post is 1.3m, the distance is 3m, and the upright posts are directly welded on bracket angle steel; the guard rail cross bars are arranged at the positions of 0.6m and 1.2m respectively; the upright posts are connected with the cross bars by fasteners; skirting boards are arranged at the bottom 18cm of the guardrail, 10cm of wire netting is arranged on the inner side of the guardrail, and the wire netting is connected with the steel pipe through a U-shaped ring.
The utility model has the following advantages: the utility model provides a capping beam construction operation platform taking a bailey beam as a bracket main beam. An operation platform is arranged on the side face of a cap beam bailey beam support, a bailey beam vertical rod phi 40 connecting hole is connected with bracket angle steel through bolts to integrally process a main beam and the operation platform, a secondary beam is placed on the operation platform after the bailey beam main beam is installed in place, and finally a template system is installed. The girder and the operation platform are processed into integral hoisting on the ground, so that the bracket mounting efficiency is improved, the bracket mounting overhead operation time is shortened, and the distribution beam profile steel engineering quantity is saved.
Drawings
FIG. 1 is a structural dimensional view of a bent cap;
FIG. 2 is a block diagram of an operating platform for the main beam of the bracket;
FIG. 3 is a construction process flow diagram;
Fig. 4 bailey beam assembly overall diagram;
FIG. 5 is a view of a corner steel corbel;
FIG. 6 is a schematic diagram of a platform installation;
fig. 7 guardrail layout.
Detailed Description
The following detailed description of the present utility model will provide clear and complete description of the technical solutions of the embodiments of the present utility model, with reference to fig. 1-7, and it is apparent that the described embodiments are only 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.
The utility model provides a cap beam construction operation platform taking a bailey beam as a bracket main beam by improving, which is characterized in that; the steel comprises a bailey beam 10 and bracket angle steel 20; the two are connected through bolts, and platform guardrails are arranged on the bracket angle steel 20.
When in implementation; the bailey beam is formed by splicing beam sheets, safety bolts are installed after the beam sheets are connected by pins, and reinforcing chords are installed on the bailey beam sheets.
When in implementation; the angle steel bracket is provided with a horizontal rod 21 and an inclined rod 22, which are respectively manufactured by welding 75 x 6 angle steel, the end head of the angle steel is drilled with a hole with the diameter phi 40, the vertical rod supporting frame corresponding to the bailey beam is also drilled with a hole with the diameter phi 40, and the two are connected by using an M36 x 150 bolt 30.
When in implementation; phi 20 steel bars 40 are welded and installed on bracket angle steel at intervals of 30cm, and 3mm pattern steel plates are paved on the steel bars to serve as platform bottom plates 50.
When in implementation; the platform guardrail comprises upright post steel pipes 61, cross bar steel pipes 62 and wire netting 63, wherein the upright posts are phi 48 x 3.5mm steel pipes, the length of each upright post is 1.3m, the distance is 3m, and the upright posts are directly welded on bracket angle steel; the guard rail cross bars are arranged at the positions of 0.6m and 1.2m respectively; the upright posts are connected with the cross bars by fasteners; skirting board 64 is established to guardrail bottom 18cm height, and 10cm wire netting is established to the guardrail inboard, and wire netting is connected with the steel pipe with the U-shaped ring.
According to the application, an operation platform is arranged on the side face of the cap beam bailey beam support, a bailey beam vertical rod phi 40 connecting hole is connected with bracket angle steel through bolts to integrally process a main beam and the operation platform, a secondary beam is placed on the operation platform after the bailey beam main beam is installed in place, and finally a template system is installed. The girder and the operation platform are processed into integral hoisting on the ground, so that the bracket mounting efficiency is improved, the bracket mounting overhead operation time is shortened, and the distribution beam profile steel engineering quantity is saved.
The following is a detailed construction description with reference to examples;
(1) The structural dimension of the capping beam:
The bridge approach piers of the Sichuan Kaharojin sand Jiang Daqiao all adopt variable cross section hollow single piers, and the single piers are provided with prestressed reinforced concrete T-shaped cap beams. The length of the capping beam is 12.55m, the middle 4.5m is arranged on the pier stud, the lengths of overhanging sections on two sides of the pier stud are 4.02m, the height of the capping beam is 3.2m, and the top width is 2.6m. The structural dimensions of the capping beam are shown in figure 1.
(2) Summary of construction scheme: the capping beam is constructed by a pier body embedded PVC pipe steel bar penetrating bracket method, and an embedded part, 2[32 channel steel ], an unloading sand cylinder and a reinforced bailey beam main beam [14 ] distribution beam bracket combination form is adopted. The bent cap support girder adopts upper and lower strenghthened type list individual layer bailey girder truss as main spandrel girder, unilateral length 15m, utilizes artifical cooperation tower crane to promote the installation, in order to ensure stability, sets up horizontal support frame in bailey girder piece junction. The main bearing beam is paved with double-spliced groove steel distribution beams with the interval of 30cm [ ]14a, and the distribution beams are paved with slope adjusting frames and bottom plate flat steel moulds. FIG. 2 is a block diagram of an operating platform for the main beam of the bracket; fig. 3 is a construction process flow diagram.
① Assembling the bailey beam: the total length of the main beam of the Bailey beam cover beam support is 15m, the length of a single Bailey beam is 3m, the Bailey beam is formed by connecting 5 Bailey beams, the beams are connected by adopting pins, then a safety bolt is arranged, and then a reinforcing chord is arranged on the Bailey beam.
Fig. 4 is an overall view of the beret beam assembly.
② Processing and installing angle steel corbels: the angle steel bracket horizontal rod and the diagonal rod are manufactured by welding 75 x 6 angle steel, the end head of the angle steel is connected with the phi 40 hole of the bailey beam vertical rod support frame by M36 x 150 bolts by adopting a magnetic drill with the phi 40 hole. And 6 pieces of angle steel corbels are sequentially installed. Fig. 5 is a diagram of a corner steel corbel.
③ Installing a platform bottom plate: phi 20 steel bars are welded and installed on bracket angle steel according to a 30cm interval, and 3mm pattern steel plates are paved on the steel bars to serve as platform bottom plates. Fig. 6 platform installation.
④ Installing a platform guardrail: the platform guardrail upright posts are steel pipes with the diameter of 48 x 3.5mm, the length of the upright posts is 1.3m, the spacing is 3m, and the upright posts are directly welded on bracket angle steel. The guard rail cross bars are arranged at the positions of 0.6m and 1.2m respectively. The upright post is connected with the cross bar by adopting a fastener. Skirting boards are arranged at the bottom 18cm of the guardrail, 10cm of wire netting is arranged on the inner side of the guardrail, and the wire netting is connected with the steel pipe through a U-shaped ring. Fig. 7 guardrail layout.
⑤ And (3) girder installation: the total weight of the main beam and the platform is 2.4 tons, and 3 points of lifting are arranged during lifting. And (3) standing at the top of the pier column by an installer, temporarily fixing the girder on the pier column steel bar after the girder is in place, and connecting 2 girders by penetrating an upper chord hole and a lower chord hole through phi 20 finish rolling screw steel to connect the supports into a whole.
⑥ Secondary beam installation: the secondary beam is directly installed on the operation platform, and the length of the secondary beam is more than 10cm than that of the bailey beam. The secondary beam is provided with a U-shaped clamp which is connected with the bailey beam reinforcing chord member.
⑦ Installing a bottom die system: after the secondary beam is installed, a bottom die system can be installed, and the bottom die is installed symmetrically from the pier column side to the side of the side span.
The beneficial effects of the application are as follows: the main beam and the operation platform are processed on the ground, so that the working efficiency is improved, and the overhead working time is shortened. The secondary beam is installed on the operation platform, so that the length of the secondary beam is shortened, secondary beam materials are saved, and the installation time is shortened.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. 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 utility model. Thus, the present utility model 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 (4)
1. A cap beam construction operation platform taking a Bailey beam as a bracket main beam is characterized in that; the steel comprises a bailey beam and bracket angle steel; the two are connected through bolts, and platform guardrails are arranged on the bracket angle steel; the platform guardrail comprises upright post steel pipes, cross bar steel pipes and wire meshes, wherein the upright posts are phi 48 x 3.5mm steel pipes, the length of each upright post is 1.3m, the distance is 3m, and the upright posts are directly welded on bracket angle steel; the guard rail cross bars are arranged at the positions of 0.6m and 1.2m respectively; the upright posts are connected with the cross bars by fasteners; skirting boards are arranged at the bottom 18cm of the guardrail, 10cm of wire netting is arranged on the inner side of the guardrail, and the wire netting is connected with the steel pipe through a U-shaped ring.
2. The bent cap construction operation platform taking the bailey beam as a bracket main beam according to claim 1, wherein the bent cap construction operation platform is characterized in that; the bailey beam is formed by splicing beam sheets, safety bolts are installed after the beam sheets are connected by pins, and reinforcing chords are installed on the bailey beam sheets.
3. The bent cap construction operation platform taking the bailey beam as a bracket main beam according to claim 1, wherein the bent cap construction operation platform is characterized in that; the angle steel corbel is provided with a horizontal rod and an inclined rod, which are manufactured by welding 75 x 6 angle steel respectively, the end head of the angle steel is drilled with a hole with the diameter phi 40, and the vertical rod supporting frame corresponding to the bailey beam is also drilled with a hole with the diameter phi 40, and the two are connected by M36 x 150 bolts.
4. The bent cap construction operation platform taking the bailey beam as a bracket main beam according to claim 1, wherein the bent cap construction operation platform is characterized in that; phi 20 steel bars are welded and installed on bracket angle steel according to a 30cm interval, and 3mm pattern steel plates are paved on the steel bars to serve as platform bottom plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508101.7U CN221297595U (en) | 2023-09-15 | 2023-09-15 | Bent cap construction operation platform with bailey beam as support girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508101.7U CN221297595U (en) | 2023-09-15 | 2023-09-15 | Bent cap construction operation platform with bailey beam as support girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221297595U true CN221297595U (en) | 2024-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322508101.7U Active CN221297595U (en) | 2023-09-15 | 2023-09-15 | Bent cap construction operation platform with bailey beam as support girder |
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| Country | Link |
|---|---|
| CN (1) | CN221297595U (en) |
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2023
- 2023-09-15 CN CN202322508101.7U patent/CN221297595U/en active Active
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