Construction structure of adjacent links of T-shaped swing bridge

Abstract

The utility model belongs to the field of building construction, concretely relates to a T structure swivel bridge adjacent joint construction structure. Including high low span pier column and the T structure swivel bridge's post -poured section and T structure adjacent joint that set up on high low span pier column, post -poured section include roof, bottom plate and side plate, roof and bottom plate in independent setting have steel beam, post -poured section in setting have vertical manhole wall and divide post -poured section into operating room and pouring chamber, operating room roof and bottom plate on respectively set up with the slot for tensioning steel beam. The system of this application is simple, safe and reliable, can adjust parallel construction with T structure joint and adjacent joint flow water construction, obviously shortens the engineering construction time, ensures that the project is put into practical use early, solves the traffic jam of key area, guarantees the efficient travel of resident.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction, and particularly relates to a T-structure swivel bridge adjacent joint construction structure. BACKGROUND

[0002] With the continuous development of the high-speed process of the present urban road viaduct, the viaduct adjacent to the existing facilities such as the subway, railway and present viaduct has been seen frequently.

[0003] T-structure swivel bridge construction refers to a construction method that a bridge structure is formed (poured or spliced) at a non-design axis position and then placed in position through swiveling. It can convert the operation in the obstacle overhead into the operation on the shore or near the ground. It is mainly applied to the situation that the support cannot be done, such as crossing the valley, river, railway and highway. The lower structure construction of the T-structure swivel bridge is mainly the middle pier pile foundation, pile cap and spherical hinge construction, and the upper structure is mostly the segmented cast-in-place box chamber (support method / suspended pouring method); the segments at both ends (post-poured segments) are post-poured after the swiveling is completed, so as to reduce the operation difficulty of the T-structure swivel. Because the post-poured segments are poured with a delay, the prestress system cannot be inserted early; in order to ensure the normal tension of the post-poured segments, the high side of the high-low pier column cannot be constructed in place at one time, which often affects the upper structure construction of the adjacent joints on both sides and delays the construction rhythm of the project. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the defects in the prior art and provides a T-structure swivel bridge adjacent joint construction structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A T-structure swivel bridge adjacent joint construction structure, which comprises a high-low pier column, a post-poured segment and a T-structure adjacent joint of a T-structure swivel bridge arranged on the high-low pier column; the post-poured segment comprises a top plate, a bottom plate and a side plate; steel tendons are independently arranged in the top plate and the bottom plate; a vertical manhole wall is arranged in the post-poured segment to divide the post-poured segment into an operation chamber and a pouring chamber; the operation chamber is provided with notches for tensioning the steel tendons.

[0007] The notches are arranged on the top plate and the bottom plate of the operation chamber.

[0008] The high-low pier column comprises a T-structure bridge pile cap, a high pier side and a low pier side arranged on the T-structure bridge pile cap, and a high pier side support and a low pier side support arranged on the high pier side and the low pier side; the T-structure adjacent joint is arranged on the low pier side support; and the post-poured segment is arranged on the high pier side support.

[0009] The T-shaped swivel bridge comprises a first pouring section near the center and two sides and a later pouring section; the first pouring section comprises an S1 section arranged at the center, S2 sections arranged at the two sides of the S1 section, and S3 sections arranged outside the S2 sections; the later pouring section is connected with the S3 sections.

[0010] The T-shaped swivel bridge is provided with T-shaped pier columns and T-shaped bearing platforms at the bottom; the T-shaped pier columns and the T-shaped bearing platforms are connected by a swivel ball hinge.

[0011] The T-shaped swivel bridge is provided with railway lines and railway auxiliary facilities at the lower side.

[0012] Compared with the prior art, the T-shaped swivel bridge has the following beneficial effects:

[0013] The technical scheme of the present application optimizes the notched position for tensioning steel bars from the position beside the high-low span pier column to the top plate and the bottom plate inside the operation room; early insertion of the high-low span pier column construction is achieved, thereby ensuring the normal development of the adjacent joint working surfaces on both sides and achieving the level of three joint beam synchronous construction. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the T-shaped swivel bridge of the present application;

[0015] Figure 2 It is a schematic diagram of the construction structure of the adjacent joint of the T-shaped swivel bridge of the present application;

[0016] Figure 3 It is a schematic diagram of the structure of the high-low span pier column of the present application. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings and the best embodiment.

[0018] Figure 1-3 shows a T-shaped structure adjacent joint construction structure of a bridge, including high-low span pier column 10 and the post-cast section 9 of the T-shaped structure of the bridge and the T-shaped structure adjacent joint 11 arranged on the high-low span pier column 10; the post-cast section 9 includes a top plate 12, a bottom plate and a side plate; the top plate and the bottom plate are independently arranged with a steel beam 20; a vertical manhole wall 14 is arranged in the post-cast section to separate the post-cast section into an operation room and a pouring room; the operation room is provided with a notch for tensioning the steel beam. The notch is arranged on the top plate and the bottom plate of the operation room, respectively, which are the top plate notch 16 and the bottom plate notch 19. The top plate of the pouring room is provided with a horizontal manhole 13.

[0019] The high-low span pier column 10 Figure 3 is shown to include a T-shaped bridge pile cap 4, a high pier side 10-1 and a low pier side 10-3 arranged on the T-shaped bridge pile cap respectively, and a high pier side support 10-2 and a low pier side support 10-4 arranged on the high pier side 10-2 and the low pier side 10-3 respectively; the T-shaped structure adjacent joint is arranged on the low pier side support 10-4; the post-cast section is arranged on the high pier side support 10-2.

[0020] Figure 1 The T-shaped structure of the bridge is shown to include a pre-cast section and a post-cast section from the center to the two sides; the pre-cast section includes a S1 section 6 arranged at the center, a S2 section 7 arranged on both sides of the S1 section 6, and a S3 section 8 arranged outside the S2 section; the post-cast section 9 is connected with the S3 section 7.

[0021] The bottom of the T-shaped structure of the bridge is provided with a T-shaped bridge pier column 3 and a T-shaped bridge pile cap 4; the T-shaped bridge pier column and the T-shaped bridge pile cap are connected by a swivel ball hinge 5.

[0022] The lower side of the T-shaped structure of the bridge is provided with a railway line 1 and a railway auxiliary facility 2.

[0023] The implementation principle of the present application is: 1, the structure of the T-shaped structure of the bridge is as Figure 1 shown; first, the lower structure of the T-shaped bridge is constructed, and the T-shaped bridge pile cap, the swivel ball hinge 5 and the T-shaped bridge pier column 3 are poured in sequence. When the upper structure of the T-shaped bridge is constructed, the S1 section, the S2 section 7 and the S3 section 8 on both sides of the T-shaped bridge pier column 3 are constructed in sequence according to the design section requirement. After the concrete construction and the prestressed construction are completed, the swivel preparation work is carried out, and the T-shaped structure is swiveled after the swivel is completed.

[0024] In the prior art, the notch for tensioning is arranged at the outlet of the box chamber, that is Figure 2The original top plate operation 15 and the original bottom plate outlet 17 in the box girder are located at the construction protrusion of the high pier side 10-1 and the high pier side support 10-2, and thus, the tensioning operation needs to be completed after the construction, and then the construction of the high pier side 10-1, the high pier side support 10-2 and the adjacent joint 11 of the T structure is performed, which seriously restricts the construction progress of the box girder construction structure.

[0025] In the application, the top plate slot 16 and the bottom plate slot 19 are adjusted into the operation chamber, and the steel bars 20 are arranged according to the positions of the top plate slot 16 and the bottom plate slot 19 during the construction of the post-pouring section 9. After the adjustment, the tensioning operation of the prestress is performed by entering the operation chamber through the horizontal manhole 13 and the manhole wall 14 after the binding of the steel bars and the pouring of the concrete. After the adjustment, the top plate slot 16 and the bottom plate slot 19 do not have position conflicts with the high pier side 10-1. The high pier side 10-1, the high pier side support 10-2 and the adjacent joint 11 of the T structure can be simultaneously constructed during the construction of the T structure, and the parallel construction of the three joints is completely achieved. Finally, the final closure of the T structure overpass bridge can be performed after the construction of the post-pouring section 9 is completed.

[0026] The technical scheme of the application has a simple system, is safe and reliable, can adjust the parallel construction of the T structure joint and the adjacent joint, obviously shortens the construction time, ensures that the project is put into use as soon as possible, solves the traffic congestion in the key area and ensures the efficient travel of residents.

[0027] The above content is only a preferred embodiment of the application, and for ordinary skilled persons in the art, the specific implementation manner and application range can be changed according to the idea of the application, and the content of the specification should not be understood as a limitation of the application.

Claims

1. A structure for construction of adjacent spans of a T-structure turnpike bridge, characterized by, The application relates to a T-shaped structure swing bridge, which comprises high-low span pier columns, a post-cast section of a T-shaped structure swing bridge arranged on the high-low span pier columns and a T-shaped structure adjacent joint; the post-cast section comprises a top plate, a bottom plate and side plates; the top plate and the bottom plate are independently provided with steel beams; a vertical manhole wall is arranged in the post-cast section to divide the post-cast section into an operation chamber and a pouring chamber; notches for tensioning the steel beams are arranged on the top plate and the bottom plate of the operation chamber.

2. The T-structure swing bridge adjacent joint construction structure according to claim 1, characterized in that, The high-low span pier columns comprise a T-shaped structure bridge pile cap, high pier sides and low pier sides arranged on the T-shaped structure bridge pile cap respectively, high pier side supports and low pier side supports arranged on the high pier sides and the low pier sides respectively; the T-shaped structure adjacent joint is arranged on the low pier side supports; the post-cast section is arranged on the high pier side supports.

3. The T-structure swing bridge adjacent joint construction structure according to claim 1, characterized in that, The T-shaped structure swing bridge comprises a first pouring section and a post-pouring section arranged from the center to both sides; the first pouring section comprises an S1 section arranged at the center, S2 sections arranged on both sides of the S1 section and S3 sections arranged outside the S2 sections; the post-pouring section is connected with the S3 sections.

4. The T-structure swing bridge adjacent joint construction structure according to claim 1, characterized in that, The T-shaped structure swing bridge is provided with T-shaped structure bridge pier columns and a T-shaped structure bridge pile cap at the bottom; the T-shaped structure bridge pier columns and the T-shaped structure bridge pile cap are connected by a swing ball hinge.

5. The T-structure swing bridge adjacent tie construction structure according to claim 1, characterized in that, The lower side of the T-shaped structure swing bridge is provided with railway lines and railway auxiliary facilities.

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