Integrally erected type high-speed railway precast beam bridge deck ancillary facility

Abstract

The utility model discloses an integrated erection type high-speed railway precast beam bridge deck ancillary facility which comprises a transfer beam body and an assembly beam body, transfer precast accessory assemblies are formed on the two sides of the upper end of the transfer beam body, and assembly precast accessory assemblies are formed on the two sides of the upper portion of the assembly beam body. The positions of the transferring prefabricated accessory assembly and the assembling prefabricated accessory assembly are opposite, after the transferring beam body and the assembling beam body are assembled, the transferring prefabricated accessory assembly and the assembling prefabricated accessory assembly are in linear communication, and the transferring prefabricated accessory assembly comprises a protective wall, a first vertical wall and a second vertical wall; the protection wall, the first vertical wall and the second vertical wall are all perpendicular to the upper end of the transfer beam body. Compared with a cast-in-place bridge deck system, the integrated bridge deck system has the advantages that the construction quality is easier to control, meanwhile, the construction period is shortened, high-altitude concrete pouring at a bridge site is avoided, high-altitude operation is reduced, safety production is facilitated, a curtain board structure of the cast-in-place bridge deck system is omitted, the number of projects is reduced, and the project cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge structure construction, and in particular relates to an integrally erected high-speed railway prefabricated beam bridge deck accessory facility. Background Art

[0002] At present, cast-in-place bridge deck with shield is a bridge structure design. Cast-in-place bridge deck with shield refers to the use of cast-in-place concrete technology at the bridge site to form the bridge deck during the bridge construction process, and a shield structure is set on the outside of the bridge deck. Cast-in-place bridge deck with shield is usually used in high-speed railway bridges to meet the safety and functional requirements of high-speed train operation.

[0003] However, the design and construction of cast-in-place bridge decks with shields need to consider many factors, including structural safety, construction cost, construction difficulty, construction safety, environmental factors, and the overall collaborative performance with the bridge. Through careful design and construction, the safety and functionality of the bridge structure can be ensured to meet the needs of high-speed railway operation.

[0004] In order to reduce construction difficulty, shorten construction period, save construction cost and improve construction quality, an integrated erection type high-speed railway prefabricated beam bridge deck ancillary facility is urgently needed. Summary of the invention

[0005] The utility model is proposed to solve the deficiencies in the prior art, and its purpose is to provide an integrally erected high-speed railway prefabricated beam bridge deck auxiliary facility.

[0006] The technical solution of the utility model is: an integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility, including a transfer beam body and an assembly beam body, transfer prefabricated auxiliary components are formed on both sides of the upper end of the transfer beam body, and assembly prefabricated auxiliary components are formed on both sides of the upper part of the assembly beam body, the transfer prefabricated auxiliary components and the assembly prefabricated auxiliary components are relatively positioned, and after the transfer beam body and the assembly beam body are assembled, the transfer prefabricated auxiliary components and the assembly prefabricated auxiliary components are linearly connected.

[0007] Furthermore, the prefabricated transfer accessory components on the transfer beam body are symmetrical along the center line, and the prefabricated assembly accessory components on the assembly beam body are symmetrical along the center line.

[0008] Furthermore, the transfer beam body and the transfer prefabricated auxiliary components are centrally prefabricated in a beam manufacturing yard, and the assembly beam body and the assembly prefabricated auxiliary components are centrally prefabricated in a beam manufacturing yard.

[0009] Furthermore, the transport prefabricated accessory components and the assembly prefabricated accessory components have the same structure.

[0010] Furthermore, the prefabricated transfer accessory components are arranged on the cantilever section of the transfer beam body.

[0011] Furthermore, a beam transport vehicle is mounted on the upper end of the assembled beam body, and the beam transport vehicle transports the transfer beam body along the line direction.

[0012] Furthermore, the transport beam body moving on the beam transport vehicle is vertically parallel to the assembly beam body serving as a supporting base.

[0013] Furthermore, the prefabricated transfer auxiliary components include a protective wall, a first vertical wall, and a second vertical wall, and the protective wall, the first vertical wall, and the second vertical wall are all perpendicular to the upper end of the transfer beam.

[0014] Furthermore, the protective wall, the transfer beam and the second vertical wall together form an inner trough.

[0015] Furthermore, the second vertical wall, the transfer beam and the first vertical wall together form an outer trough.

[0016] The beneficial effects of the utility model are as follows:

[0017] The integrated bridge deck system of the utility model is easier to control construction quality than the cast-in-place bridge deck system, while saving construction period, avoiding high-altitude concrete pouring at the bridge location, reducing high-altitude operations, which is beneficial to safe production, canceling the shield structure of the cast-in-place bridge deck system, reducing the number of projects, and saving project costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an enlarged assembly schematic diagram of the protective wall in the utility model;

[0020] in:

[0021] 1 Protective wall 2 First vertical wall

[0022] 3 Second vertical wall 4 Transfer beam

[0023] 5 Beam transport vehicle 6 Assemble beam body

[0024] 7 Outer groove 8 Inner groove

[0025] 9 First step platform 10 Second step platform DETAILED DESCRIPTION

[0026] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0027] like Figure 1 to Figure 2As shown, an integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility includes a transfer beam body 4 and an assembly beam body 6, wherein transfer prefabricated auxiliary components are formed on both sides of the upper end of the transfer beam body 4, and assembly prefabricated auxiliary components are formed on both sides of the upper part of the assembly beam body 6, the transfer prefabricated auxiliary components and the assembly prefabricated auxiliary components are relatively positioned, and after the transfer beam body 4 and the assembly beam body 6 are assembled, the transfer prefabricated auxiliary components and the assembly prefabricated auxiliary components are linearly connected.

[0028] The prefabricated transfer accessory components on the transfer beam body 4 are symmetrical along the center line, and the prefabricated assembly accessory components on the assembly beam body 6 are symmetrical along the center line.

[0029] The transport beam body 4 and the transport prefabricated auxiliary components are centrally prefabricated in the beam manufacturing yard, and the assembly beam body 6 and the assembly prefabricated auxiliary components are centrally prefabricated in the beam manufacturing yard.

[0030] The transport prefabricated accessory components and the assembly prefabricated accessory components have the same structure.

[0031] The prefabricated transfer accessory components are arranged on the cantilever section of the transfer beam body 4.

[0032] A beam transport vehicle 5 is mounted on the upper end of the assembly beam body 6, and the beam transport vehicle 5 transports the transfer beam body 4 along the line direction.

[0033] The transport beam 4 moving on the beam transport vehicle 5 is vertically parallel to the assembly beam 6 serving as a supporting base.

[0034] The prefabricated transfer auxiliary components include a protective wall 1 , a first vertical wall 2 , and a second vertical wall 3 . The protective wall 1 , the first vertical wall 2 , and the second vertical wall 3 are all perpendicular to the upper end of the transfer beam 4 .

[0035] The protective wall 1 , the transfer beam 4 , and the second vertical wall 3 together form an inner trough 8 .

[0036] The second vertical wall 3 , the transfer beam 4 , and the first vertical wall 2 together form an outer trough 7 .

[0037] Specifically, among the protective wall 1 , the first vertical wall 2 , and the second vertical wall 3 , the outer wall of the first vertical wall 2 is flush with the outer side of the transfer beam 4 , the protective wall 1 is away from the outer side wall of the transfer beam 4 , and the second vertical wall 3 is located between the protective wall 1 and the first vertical wall 2 .

[0038] More specifically, the transverse distance between the second vertical wall 3 and the protective wall 1 is smaller than the transverse distance between the second vertical wall 3 and the first vertical wall 2 .

[0039] Specifically, a first step 9 is formed at the side wall of the first vertical wall 2 facing the second vertical wall 3 , and the first step 9 is flush with the upper end of the second vertical wall 3 , so that a cable trough cover can be placed on the first step 9 and the upper end of the second vertical wall 3 .

[0040] Specifically, a second step platform 10 is formed at the side wall of the protective wall 1 facing the second vertical wall 3 , and the second step platform 10 is flush with the upper end of the second vertical wall 3 , so that a cable trough cover can be placed on the second step platform 10 and the upper end of the second vertical wall 3 .

[0041] Specifically, in the transfer beam body 4, the transfer beam body 4, the protective wall 1, the first vertical wall 2, and the second vertical wall 3 form a whole.

[0042] Specifically, the assembled beam body 6 serves as a transportation channel for the beam transport vehicle 5 to transport the transfer beam body 4 .

[0043] Specifically, embedded bolts and steel plates are pre-embedded in the first vertical wall 2, and bridge deck railings or sound barriers are installed through the embedded bolts and steel plates.

[0044] Specifically, when the protective wall 1, the first vertical wall 2, and the second vertical wall 3 are centrally prefabricated at the beam manufacturing site, the pre-tensioning and initial tensioning of the steel bundles of the transfer beam 4 and the assembly beam 6 and the pre-arch of the beam need to be adjusted accordingly.

[0045] Specifically, the beam yard construction protection wall 1, the first vertical wall 2, and the second vertical wall 3 can be constructed according to the following scheme:

[0046] Option A: pouring concrete on the beam pedestal before prestressing the prestressed steel tendons;

[0047] Plan B: After the final tensioning of the prestressed steel strands is completed and the prestressed pipe concrete reaches the design strength, pour concrete on the beam pedestal;

[0048] Plan C: The first vertical wall 2 is poured with concrete on the beam pedestal before the prestressed steel strands are pre-tensioned. The second vertical wall 3 and the protective wall 1 are poured with concrete on the beam pedestal after the prestressed steel strands are finally tensioned and the prestressed pipe concrete reaches the design strength.

[0049] When using Scheme A and Scheme C to construct three walls, it is necessary to adjust the pre-tension and initial tension of the steel strands and the pre-camber of the beam. When using Scheme B to construct three walls of the bridge deck, only the pre-camber of the beam is adjusted. Other indicators are implemented according to the original design.

[0050] During the process of erecting three walls along with beams, beam transport vehicles are commonly used to meet the demand. When erecting beams, some of the legs of the bridge erecting machine that do not meet the requirements can be modified accordingly to meet the construction space and limit requirements.

[0051] The construction method of the utility model comprises the following steps:

[0052] First, a protective wall 1, a first vertical wall 2, and a second vertical wall 3 are constructed on a beam manufacturing pedestal or a beam storage pedestal in a beam yard;

[0053] Then, as the transfer beam 4 is transported to the bridge position, the cable trough C-type cover plate and the cable trough D-type cover plate are laid on the protective wall 1, the first vertical wall 2, and the second vertical wall 3 to complete the construction.

[0054] The integrated bridge deck system of the utility model is easier to control construction quality than the cast-in-place bridge deck system, while saving construction period, avoiding high-altitude concrete pouring at the bridge location, reducing high-altitude operations, which is beneficial to safe production, canceling the shield structure of the cast-in-place bridge deck system, reducing the number of projects, and saving project costs.

Claims

1. An integrally erected high-speed railway prefabricated beam bridge deck auxiliary facility, comprising a transport beam body (4) and an assembly beam body (6), characterized in that: Prefabricated transfer auxiliary components are formed on both sides of the upper end of the transfer beam body (4), and prefabricated assembly auxiliary components are formed on both sides of the upper part of the assembly beam body (6). The prefabricated transfer auxiliary components and the prefabricated assembly auxiliary components are positioned relative to each other, and after the transfer beam body (4) and the assembly beam body (6) are assembled, the prefabricated transfer auxiliary components and the prefabricated assembly auxiliary components are linearly connected.

2. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 1 is characterized by: The prefabricated transfer accessory components on the transfer beam body (4) are symmetrical along the center line, and the prefabricated assembly accessory components on the assembly beam body (6) are symmetrical along the center line.

3. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 1 is characterized by: The transfer beam body (4) and the transfer prefabricated auxiliary components are centrally prefabricated at a beam manufacturing site, and the assembly beam body (6) and the assembly prefabricated auxiliary components are centrally prefabricated at a beam manufacturing site.

4. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 3 is characterized by: The transport prefabricated accessory components and the assembly prefabricated accessory components have the same structure.

5. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 4 is characterized in that: The prefabricated transfer accessory components are arranged on the cantilever section of the transfer beam body (4).

6. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 4, characterized in that: A beam transport vehicle (5) is mounted on the upper end of the assembly beam body (6), and the beam transport vehicle (5) transports the transfer beam body (4) along the line direction.

7. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 6, characterized in that: The transport beam body (4) moving on the beam transport vehicle (5) is vertically parallel to the assembly beam body (6) serving as a supporting base.

8. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 6, characterized in that: The prefabricated transfer accessory components comprise a protective wall (1), a first vertical wall (2), and a second vertical wall (3); the protective wall (1), the first vertical wall (2), and the second vertical wall (3) are all perpendicular to the upper end of the transfer beam body (4).

9. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 8, characterized in that: The protective wall (1), the transfer beam body (4), and the second vertical wall (3) are enclosed to form an inner trough body (8).

10. The integrated erection type high-speed railway prefabricated beam bridge deck auxiliary facility according to claim 8, characterized in that: The second vertical wall (3), the transfer beam body (4), and the first vertical wall (2) are enclosed to form an outer trough body (7).

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