CN220767750U - Detachable temporary buttress structure for steel box girder in water - Google Patents
Detachable temporary buttress structure for steel box girder in water Download PDFInfo
- Publication number
- CN220767750U CN220767750U CN202322526963.2U CN202322526963U CN220767750U CN 220767750 U CN220767750 U CN 220767750U CN 202322526963 U CN202322526963 U CN 202322526963U CN 220767750 U CN220767750 U CN 220767750U
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- steel
- support system
- pipe pile
- box girder
- distribution beam
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000009826 distribution Methods 0.000 claims abstract description 37
- 244000035744 Hura crepitans Species 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 18
- 239000004576 sand Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a detachable steel box girder temporary buttress structure in water, including lower steel-pipe pile, lower section distribution beam, whole support system, upper segment distribution beam, sand box and steel box girder section, lower steel-pipe pile hammer is beaten under the water bottom riverbed, lower section distribution beam is welded on the lower steel-pipe pile, whole support system is welded on the lower segment distribution beam, the upper segment distribution beam is welded on the whole support system, the middle part of whole support system sets up Liang Duanjian bottom plate welding and uses operation platform, set up the sand box on the upper segment distribution beam, steel box girder section sets up on the sand box. The temporary buttress structure is simple in structure and convenient to operate, solves the problems of complex procedure, long construction time, difficult dismantling and the like of the temporary buttress, greatly reduces the procedure connection time by welding the whole supporting system in advance, accelerates the construction progress and reduces the safety risk of water operation.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a detachable temporary buttress structure of a steel box girder in water.
Background
At present, domestic steel box girder segments are assembled on site and supported by adopting Bailey truss steel, and the bottoms of the buttresses are expanded by adopting expanded foundations, so that the underwater application technology is less. If engineering is carried out in a shallow water river channel, the water depth is 1-2 m, the geology in the river channel is silt clay, the average thickness is 7.4m, the bearing capacity characteristic value is 70kpa, a steel cofferdam is required to be manufactured by adopting a traditional expansion foundation, the excavation is deeper, the construction process is complicated, the construction period is long, the steel box girder is installed in the key process of the whole project, and the buttress process optimization degree has a qualitative influence on the engineering progress.
Disclosure of Invention
The utility model provides a detachable temporary buttress structure for a steel box girder in water, which solves the problems of complex erection procedure, long construction time, complex construction and the like of the traditional buttress.
The utility model adopts the technical scheme that:
the utility model provides a detachable steel box girder temporary buttress structure in water, including lower steel-pipe pile, lower section distribution beam, whole support system, upper segment distribution beam, sand box and steel box girder section, lower steel-pipe pile hammer is beaten under the water bottom riverbed, lower section distribution beam is welded on the lower steel-pipe pile, whole support system is welded on the lower segment distribution beam, the upper segment distribution beam is welded on the whole support system, the middle part of whole support system sets up Liang Duanjian bottom plate welding and uses operation platform, set up the sand box on the upper segment distribution beam, steel box girder section sets up on the sand box.
The integral support system comprises upper steel pipe piles, connecting beams and inclined struts, wherein the connecting beams are welded at the lower parts between the upper steel pipe piles at two sides, and the inclined struts are welded on the upper section distribution beams at the upper parts and the top between the upper steel pipe piles at two sides.
The connecting beams are arranged at intervals in the transverse and longitudinal directions between the upper ends of the connecting beams, steel fence pieces are fully paved at the tops of the connecting beams and fixed with the connecting beams through iron wires, and serve as an operation platform for welding bottom plates between beam sections.
The sand box comprises a sand storage tank, a sand unloading valve, a valve limiting plate and a sliding cavity core.
The connecting beam is 10# channel steel, and the spacing distance of the connecting beam is 50cm.
The dimensions of the lower steel pipe pile and the upper steel pipe pile are phi 320 mm by 6mm, and the material is Q235B.
The lower section distribution beam and the upper section distribution beam adopt HM340 x 250 x 9 x 14 section steel, and the material is Q345B.
The utility model has the beneficial effects that: the temporary buttress structure is simple in structure and convenient to operate, solves the problems of complex procedure, long construction time, difficult detachment and the like of the temporary buttress, greatly reduces procedure connection time by welding an integral supporting system in advance, quickens construction progress, reduces safety risk of water operation, increases a lower section distribution beam, cuts a steel pipe pile up and down, enhances pressure bearing capacity of an upper structure, and simultaneously increases bending resistance of the lower steel pipe pile.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model.
FIG. 2 is a schematic vertical section of the present utility model.
Wherein: 1-lower steel pipe piles; 2-lower section distribution beams; 3-contact beams; 4-upper steel pipe piles; 5-upper section distribution beams; 6-a sand box; 7-diagonal bracing; 8-steel box girder segments; 9-an operation platform; 10-connecting beams.
Detailed Description
A detachable temporary buttress structure for a steel box girder in water comprises a lower steel pipe pile 1, a lower section distribution beam 2, an integral support system, an upper section distribution beam 5, a sand box 6 and a steel box girder section 8, wherein the lower steel pipe pile 1 is hammered under a water bottom riverbed, a vibrating hammer is utilized for piling operation, the type of the vibrating hammer is selected according to required exciting force, each pile is continuously driven to the bottom at one time, sinking pile is stopped to control the penetration degree, pile top elevation is measured after the lower steel pipe pile 1 is driven, the raised part is cut and truncated, the lower section distribution beam 2 is welded on the lower steel pipe pile 1, the integral support system is welded on the lower section distribution beam 2, the upper section distribution beam 5 is welded on the integral support system, a Liang Duanjian bottom plate welding operation platform 9 is arranged in the middle of the integral support system, the sand box 6 is arranged on the upper section distribution beam 5, the steel box girder section 8 is arranged on the sand box 6, the upper section distribution beam 5 and the lower section distribution beam 2 are independently hoisted and welded, land welding is not carried out in advance, and because pile driving and integral support system plane position deviation is large, and whole support system plane deviation is avoided, and whole stress is avoided.
The whole support system comprises upper steel pipe piles 4, connecting beams 3 and inclined struts 7, wherein the connecting beams 3 are welded at the lower parts between the upper steel pipe piles 4 at two sides, the inclined struts 7 are welded on the upper parts between the upper steel pipe piles 4 at two sides and the upper section distribution beams 5 at the top, the whole support system is welded on land firstly, the upper steel pipe piles 4, the connecting beams 3 and the inclined struts 7 are processed and manufactured, the connecting beams 3 are 12a # channel steel, and the inclined struts 7 are 24# channel steel.
The connecting beams 10 are arranged at intervals in the transverse and longitudinal directions between the upper ends of the connecting beams 3, the connecting beams 10 are 10# channel steel, the interval distance between the connecting beams 10 is 50cm, steel fence pieces are fully paved on the tops of the connecting beams 10 and are fixed with the connecting beams 10 through iron wires, and the steel fence pieces serve as an operating platform 9 for welding bottom plates among beam sections.
The sand box 6 comprises a sand storage tank, a sand unloading valve, a valve limiting plate and a sliding cavity core, standard sand is filled in the sand box 6 for guaranteeing the unloading quality, a bearing capacity test is carried out before use, and the sand filling amount in the sand box 6 is adjusted according to the measured elevation.
The dimensions of the lower steel pipe pile 1 and the upper steel pipe pile 4 are phi 320 mm by 6mm, and the material is Q235B.
The lower section distributing beam 2 and the upper section distributing beam 5 adopt HM 340-250-9-14 section steel, and the material is Q345B.
During construction, the joint quality of the welding seams of the temporary buttress system is checked before use, and the welding seams can be put into use after the welding seams are qualified;
retesting the top of the upper segment distribution beam 5 after the installation is finished, and determining the position and the height of each sand box 6;
setting sedimentation displacement observation points, and regularly observing and recording;
when the temporary buttress is removed, the sand box 6 is used for unloading, the steel box girder system conversion is completed, the stress between the temporary buttress and the steel box girder segments 8 is relieved, the removing sequence follows the following of 'welding before removing and welding after removing firstly', the upper segment distributing beam 5 is removed firstly and then the whole supporting system is removed from top to bottom, the steel pipe piles are pulled out from the two ends, and finally the vibrating hammers are used for pulling out the steel pipe piles.
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", "axial", "radial", "circumferential", 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 being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (7)
1. The utility model provides a detachable steel box girder temporary buttress structure in water, a serial communication port, including lower steel-pipe pile (1), lower section distribution roof beam (2), whole support system, upper segment distribution roof beam (5), sand box (6) and steel box girder section (8), lower steel-pipe pile (1) hammer is put into under the river bed, welding lower section distribution roof beam (2) on lower steel-pipe pile (1), welding whole support system on lower section distribution roof beam (2), welding upper segment distribution roof beam (5) on the whole support system, the middle part of whole support system sets up Liang Duanjian bottom plate operation platform (9) for welding, set up sand box (6) on upper segment distribution roof beam (5), steel box girder section (8) set up on sand box (6).
2. The detachable temporary buttress structure for the steel box girder in water according to claim 1, wherein the integral supporting system comprises upper steel pipe piles (4), connecting beams (3) and diagonal braces (7), the connecting beams (3) are welded at the lower parts between the upper steel pipe piles (4) at two sides, and the diagonal braces (7) are welded on the upper parts between the upper steel pipe piles (4) at two sides and the upper section distribution beams (5) at the top.
3. The detachable underwater steel box girder temporary buttress structure according to claim 2, wherein connecting girders (10) are arranged at intervals in the transverse and longitudinal directions between the upper ends of the connecting girders (3), steel fence pieces are fully paved on the tops of the connecting girders (10), the steel fence pieces are fixed with the connecting girders (10) through iron wires, and the steel fence pieces are used as an operation platform (9) for welding bottom plates among girder sections.
4. The detachable temporary buttress structure for steel box girders in water according to claim 1, wherein the sand box (6) comprises a sand storage tank, a sand unloading valve, a valve limiting plate and a sliding cavity core.
5. A removable temporary pier structure for steel box girders in water according to claim 3, wherein the connecting beams (10) are 10# channel steel, and the distance between the connecting beams (10) is 50cm.
6. The detachable temporary buttress structure for steel box girders in water according to claim 1, wherein the dimensions of the lower steel pipe pile (1) and the upper steel pipe pile (4) are phi 320 x 6mm, and the material is Q235B.
7. The removable temporary pier structure for steel box girders in water according to claim 1, wherein the lower section distribution girder (2) and the upper section distribution girder (5) are made of a steel with the material of Q345B by using HM340 x 250 x 9 x 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322526963.2U CN220767750U (en) | 2023-09-18 | 2023-09-18 | Detachable temporary buttress structure for steel box girder in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322526963.2U CN220767750U (en) | 2023-09-18 | 2023-09-18 | Detachable temporary buttress structure for steel box girder in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220767750U true CN220767750U (en) | 2024-04-12 |
Family
ID=90618602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322526963.2U Active CN220767750U (en) | 2023-09-18 | 2023-09-18 | Detachable temporary buttress structure for steel box girder in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220767750U (en) |
-
2023
- 2023-09-18 CN CN202322526963.2U patent/CN220767750U/en active Active
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