CN220847045U - Assembled steel trestle structure suitable for deep water area - Google Patents
Assembled steel trestle structure suitable for deep water area Download PDFInfo
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- CN220847045U CN220847045U CN202321776562.6U CN202321776562U CN220847045U CN 220847045 U CN220847045 U CN 220847045U CN 202321776562 U CN202321776562 U CN 202321776562U CN 220847045 U CN220847045 U CN 220847045U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 166
- 239000010959 steel Substances 0.000 title claims abstract description 166
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000011178 precast concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002513 implantation Methods 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
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Abstract
The utility model belongs to the technical field of bridge construction, and particularly relates to an assembled steel trestle structure suitable for deep water areas, which comprises a two-span one-joint integrally machined prefabricated steel truss upper structure and a steel pipe pile foundation with the upper end penetrating into the steel truss upper structure; the steel pipe pile foundation is flush with the top surface of the steel truss upper structure and is connected through a connecting device; the steel truss upper structure longitudinal bridge comprises two main trusses which are arranged in parallel, and a connecting truss which is arranged between the two main trusses and is connected with the two main trusses; the two ends and the middle position of the two main trusses are respectively provided with a preformed hole so as to enable the steel pipe pile foundation to penetrate; the connecting device is arranged in the reserved hole of the main truss girder and comprises annular wall structures arranged at four corners of the reserved hole and connecting keys for connecting the annular wall structures with the steel pipe pile foundation. The utility model increases the stability of the steel pipe pile foundation, can rapidly complete the connection and system conversion of the steel pipe pile foundation and the steel truss, and has convenient installation and high safety.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to an assembled steel trestle structure suitable for deep water areas.
Background
The steel trestle is an important temporary structure for construction of the bridge in water, and is widely applied to the field of bridge construction in China. However, as the depth of water increases, the difficulty in driving the steel pipe pile foundation of the steel trestle gradually increases. For deep water and rapid flow water areas with the water depth exceeding 20 meters, the self-standing stability of the steel pipe pile is greatly reduced, and the driving difficulty of the steel pipe pile foundation is increased. In order to reduce the foundation engineering quantity of the deep water piles, a span expansion mode is often adopted, the bearing capacity of the conventional 321-type bailey beam is difficult to be qualified for trestle bridges with spans larger than 30 meters, and the cantilever erection of the large-span bailey beam has great challenges.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides an assembled steel trestle structure suitable for deep water areas, which can increase the stability of a steel pipe pile foundation, can rapidly complete the connection and system conversion of the steel pipe pile foundation and a steel truss, and is convenient to install and high in safety.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The assembled steel trestle structure suitable for the deepwater area comprises a two-span one-joint integrally machined prefabricated steel truss upper structure, a bridge deck pavement system paved on the upper surface of the steel truss upper structure, and a steel pipe pile foundation, wherein one end of the steel pipe pile foundation penetrates into the steel truss upper structure, and the other end of the steel pipe pile foundation extends into water and is implanted; the steel pipe pile foundation is flush with the top surface of the steel truss upper structure and is connected into a whole through a connecting device;
The steel truss upper structure longitudinal bridge comprises two main trusses which are arranged in parallel, and a connecting truss which is arranged between the two main trusses and is connected with the two main trusses; two ends and the middle position of the two main trusses are respectively provided with a preformed hole so as to enable the steel pipe pile foundation to penetrate; the connecting device is arranged in the reserved hole of the main truss girder and comprises annular wall structures which are arranged at four corners of the reserved hole and penetrate through the reserved hole, and connecting keys which are distributed between the annular wall structures and the steel pipe pile foundation and fixedly connected with the annular wall structures and the steel truss upper structure.
Preferably, the 4 annular wall structures form a cylindrical wall structure on the periphery of the steel pipe pile foundation, and the cylindrical wall structure can play a role in guiding and fixing pile positions when the steel pipe pile is inserted in; the cylindrical wall body structure steel pipe pile foundation has a common central axis.
Preferably, a space is reserved between the adjacent annular wall structures, and a connecting key for connecting the steel pipe pile foundation and the steel truss upper structure is arranged in the space.
Preferably, the height of the preformed hole is the same as the height of the main girder, and the height of the annular wall structure is at least the same as the height of the preformed hole.
Preferably, the connection keys are provided at upper and lower portions of the annular wall structure.
Preferably, the annular wall body structure and the steel truss upper structure are prefabricated together; and the connecting key is used for discharging and connecting in the field when the steel pipe pile foundation is flush with the top end of the steel truss upper structure.
Preferably, the height of the upper structure of the steel truss is not less than 2 meters so as to enhance the connection level of the steel pipe pile foundation in the transverse direction and the transverse rigidity of the steel trestle structure; the upper structures of the front and rear adjacent two steel trusses are spaced and are not connected, so that the steel trusses can be positioned and installed efficiently;
Preferably, the steel pipe pile foundations arranged transversely side by side are provided with a transverse high-rigidity connecting system so as to enhance the lateral rigidity of the steel pipe pile foundations and resist the impact of water flow and waves; and a longitudinal high-rigidity connecting system is arranged between the front and rear adjacent two-connected steel trestle bridge and the adjacent steel pipe pile foundations so as to improve the overall stability of the steel trestle bridge.
Preferably, the diameter of the steel pipe pile foundation should be capable of ensuring that the steel pipe pile foundation is in a self-stable state with one end fixed and the other end cantilevered when the water depth is designed.
Preferably, the bridge deck pavement system is in the form of a steel section distributing beam and steel plate combined structure or a precast concrete board.
The beneficial effects of the utility model are as follows: the steel pipe pile foundation and the steel truss upper structure are connected into a whole through the connecting device, the annular wall body of the connecting device plays a role in positioning and guiding when the steel pipe pile foundation is inserted and beaten, and meanwhile, under the effect of water flow impact, the excessive displacement of the pile top of the steel pipe pile foundation can be limited, so that the effect of increasing the stability of the steel pipe pile foundation is achieved; the connecting key of the connecting device can be used for quickly connecting the steel pipe pile foundation and the upper structure of the steel truss, is convenient to install, can realize system conversion as soon as possible, greatly reduces the time of the steel truss in the hanging state of the jack, and further improves the safety; the connecting key is processed on site, and has certain fault tolerance and adjustment capability for the deflection of the pile top of the steel pipe pile. Meanwhile, spaces are reserved among the four annular wall bodies, so that inconvenience in installation of connecting keys between the steel pipe pile foundation and the reserved hole cylinder in the later period is effectively avoided.
Drawings
FIG. 1 is a floor plan of the present utility model;
FIG. 2 is a plan view of the present utility model;
FIG. 3 is a plan detail view of the connection device of the present utility model;
fig. 4 is an elevation detail view of the connection device of the present utility model.
In the figure: 1-a steel truss superstructure; 1-1 main girder; 1-2 connecting trusses; 2-a steel pipe pile foundation; 3-connecting means; 3-1 an annular wall structure; 3-2 linkages; 4-bridge deck pavement system; 5-a transverse high stiffness linkage; 6-longitudinal high-rigidity connection system.
Detailed Description
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, 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 an assembled steel trestle structure suitable for deep water areas, which is shown in figures 1 to 4, and comprises a two-span one-joint integrally-machined prefabricated steel truss upper structure 1 and a plurality of steel pipe pile foundations 2 penetrating the steel truss upper structure 1 and extending into water for implantation; the steel pipe pile foundation 2 and the steel truss upper structure 1 are connected into a whole through the connecting device 3, and the top surfaces of the two structures are flush. The diameter of the steel pipe pile foundation 2 should be capable of ensuring that one end is fixed and the other end is in a cantilever self-stable state when the water depth is designed. A bridge deck pavement system 4 is paved on the steel truss upper structure 1, and the bridge deck pavement system 4 can be in the structural form of a steel distribution beam and steel plate combined structure, a precast concrete slab and the like.
The longitudinal bridge of the steel truss upper structure 1 comprises two main trusses 1-1 which are arranged in parallel, and a connecting truss 1-2 which is arranged between the two main trusses 1-1 and is used for connecting the two main trusses 1-1; the two ends and the middle position of the two main trusses 1-1 are respectively provided with a preformed hole with the same height as the main trusses 1-1 so as to enable the steel pipe pile foundation 2 to penetrate; the connection means 3 are arranged in a preformed hole of the main girder 1-1.
Wherein the connecting device 3 comprises an annular wall body structure 3-1 and a connecting key 3-2. The annular wall body structures 3-1 are arranged at four corners of the reserved holes and penetrate through the reserved holes, and two sides of each annular wall body structure 3-1 are welded with the steel truss upper structure 1 and the steel pipe pile foundation 2 at the same time. The connecting keys 3-2 are uniformly distributed on the upper part and the lower part of a space formed by the annular wall body structure 3-1 and the steel pipe pile foundation 2, and the upper part and the lower part of the annular wall body structure 3-1 are welded with the steel pipe pile foundation 2 through the connecting keys 3-2.
In the present utility model, the height of the annular wall structures 3-1 is at least equal to the height of the steel truss superstructure 1 or the preformed holes, and the 4 annular wall structures 3-1 form a cylindrical wall structure (the diameter of the cylindrical wall structure is larger than the diameter of the steel pipe pile foundation 2) on the outer periphery of the steel pipe pile foundation 2 and have a common central axis with the steel pipe pile foundation 2. The cylinder wall body structure can play a role in guiding and fixing pile positions when the steel pipe pile foundation 2 penetrates.
As a preferable structure of the annular wall body structure 3-1, a space is reserved between the adjacent annular wall body structures 3-1, a connecting key 3-2 is welded in the space, the steel pipe pile foundation 2 is fixedly connected with the steel truss upper structure 1, and the inconvenience in installation of the connecting key 3-2 between the steel pipe pile foundation 2 and the reserved hole cylinder in the later period is avoided.
The annular wall body structure 3-1 and the steel truss upper structure 1 are prefabricated and processed together, and the connecting key 3-2 is fed and connected in the field when the steel pipe pile foundation 2 is flush with the top end of the steel truss upper structure 1 in the later period.
The utility model requires that the height of the upper structure 1 of the steel truss is not less than 2 meters so as to enhance the connection level of the 2 transverse bridge directions of the steel pipe pile foundation and the transverse rigidity of the steel trestle structure; the upper structures 1 of the front and rear adjacent steel trusses are not connected, and a certain interval is reserved between the upper structures, so that the efficient positioning and mounting of the steel trusses are facilitated.
As a preferred embodiment of the utility model, a transverse high-rigidity connecting system 5 is arranged on the steel pipe pile foundations 2 arranged transversely side by side so as to strengthen the lateral rigidity of the steel pipe pile foundations 2 and resist the impact of water flow and waves; for the steel trestle of two adjacent tandem, the steel-pipe pile foundation 2 adjacent to the steel trestle is provided with a longitudinal high-rigidity connecting system 6 so as to improve the overall stability of the steel trestle.
The construction process of the assembled steel trestle structure provided by the utility model comprises the following steps:
(1) Prefabricating a steel truss upper structure 1 in a shore processing plant, and integrally processing and prefabricating the steel truss upper structure 1 in a two-span one-joint mode; simultaneously processing and manufacturing a steel pipe pile foundation 2 and a bridge deck pavement system 4;
(2) The steel truss upper structure 1 is moved to a water ship and fixed, and is transported to a water area where the steel trestle is designed, and the steel truss upper structure 1 is positioned by means of anchoring and the like;
(3) Sequentially hanging the steel pipe pile foundation 2 by adopting a floating crane, penetrating the steel pipe pile foundation 2 into a reserved hole of the steel truss girder, enabling the steel pipe pile foundation 2 to be placed on the ground, and enabling the steel pipe pile foundation 2 to be placed on the ground by adopting a vibrating hammer in a sinking mode;
(4) Withdrawing the anchoring, and releasing the temporary anchoring of the steel truss upper structure 1 and the ship; arranging a lifting device at the top of the steel pipe pile foundation 2, and synchronously lifting the upper structure 1 of the one-joint steel truss until the top surface of the upper structure 1 of the steel truss is flush with the top of the steel pipe pile;
(5) Measuring the distance relation between the steel pipe pile foundation 2 and the annular wall body structure 3-1 on site, blanking and installing the connecting key 3-2 on site, and connecting the steel pipe pile foundation 2 and the steel truss upper structure 1 into a whole; removing the lifting device;
(6) Installing a transverse bridge-to-high-rigidity connecting system 5; paving a bridge deck paving system 4; completing construction of a one-joint steel trestle;
(7) The same method is used for installing the next steel trestle and installing a longitudinal bridge high-rigidity connecting system 6.
The foregoing detailed description of the embodiments of the utility model has been presented only to illustrate the preferred embodiments of the utility model and should not be taken 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 (10)
1. The assembled steel trestle structure is characterized by comprising a two-span one-joint integrally-machined prefabricated steel truss upper structure, a bridge deck pavement system paved on the upper surface of the steel truss upper structure, and a steel pipe pile foundation, wherein one end of the steel pipe pile foundation penetrates into the steel truss upper structure, and the other end of the steel pipe pile foundation stretches into water and is implanted; the steel pipe pile foundation is flush with the top surface of the steel truss upper structure and is connected into a whole through a connecting device;
The steel truss upper structure longitudinal bridge comprises two main trusses which are arranged in parallel, and a connecting truss which is arranged between the two main trusses and is connected with the two main trusses; two ends and the middle position of the two main trusses are respectively provided with a preformed hole so as to enable the steel pipe pile foundation to penetrate; the connecting device is arranged in the reserved hole of the main truss girder and comprises annular wall structures which are arranged at four corners of the reserved hole and penetrate through the reserved hole, and connecting keys which are distributed between the annular wall structures and the steel pipe pile foundation and fixedly connected with the annular wall structures and the steel truss upper structure.
2. The fabricated steel trestle structure suitable for deep water according to claim 1, wherein said four annular wall structures form a cylindrical wall structure around the periphery of the steel pipe pile foundation, said cylindrical wall structure having a central axis in common with the steel pipe pile foundation.
3. The fabricated steel trestle structure suitable for deep water areas according to claim 1, wherein a space is reserved between adjacent annular wall structures, and a connecting key for connecting a steel pipe pile foundation and a steel truss upper structure is arranged in the space.
4. The fabricated steel trestle structure according to claim 1, wherein the height of said preformed holes is the same as the height of the main girder, and the height of said annular wall structure is at least the same as the height of the preformed holes.
5. The fabricated steel trestle structure according to claim 1, characterized in that said connection keys are provided at the upper and lower parts of the annular wall structure.
6. The fabricated steel trestle structure suitable for deep water according to claim 1, wherein said connection keys are used for on-site blanking and connection when the steel pipe pile foundation is flush with the top end of the steel truss superstructure.
7. The assembled steel trestle structure suitable for deep water areas according to claim 1, wherein the height of the steel truss upper structure is not less than 2 meters, and the steel truss upper structures of the front and rear adjacent two links are spaced and are not connected.
8. The fabricated steel trestle structure suitable for deep water areas according to claim 1, characterized in that the steel pipe pile foundations arranged transversely side by side are provided with transverse high-rigidity connection systems; and a longitudinal high-rigidity connection system is arranged between the adjacent steel pipe pile foundations of the front-back adjacent two-connected steel trestle.
9. The assembled steel trestle structure suitable for deep water areas according to claim 1, wherein the diameter of the steel pipe pile foundation is capable of guaranteeing a self-stable state of being fixed at one end and being cantilever at the other end when the depth of water is designed.
10. The fabricated steel trestle structure suitable for deep water according to claim 1, wherein said deck pavement system is in the form of a steel section distribution beam and steel plate combination structure or a precast concrete slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321776562.6U CN220847045U (en) | 2023-07-07 | 2023-07-07 | Assembled steel trestle structure suitable for deep water area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321776562.6U CN220847045U (en) | 2023-07-07 | 2023-07-07 | Assembled steel trestle structure suitable for deep water area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220847045U true CN220847045U (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321776562.6U Active CN220847045U (en) | 2023-07-07 | 2023-07-07 | Assembled steel trestle structure suitable for deep water area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220847045U (en) |
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2023
- 2023-07-07 CN CN202321776562.6U patent/CN220847045U/en active Active
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