Prefabricated bridge deck slab, cable-stayed bridge and construction method thereof

A bridge deck and prefabricated bridge technology, applied to cable-stayed bridges, bridges, bridge parts, etc.

Pending Publication Date: 2022-03-18
SHANDONG TRAFFIC PLANNING DESIGN INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a prefabricated bridge deck, a cable-stayed bridge and its constru

Method used

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  • Prefabricated bridge deck slab, cable-stayed bridge and construction method thereof
  • Prefabricated bridge deck slab, cable-stayed bridge and construction method thereof
  • Prefabricated bridge deck slab, cable-stayed bridge and construction method thereof

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Embodiment 3

[0060] The embodiment of the present invention provides a construction sequence of a cable-stayed bridge, see Figure 9(a)-9(d) As shown, the construction sequence includes the following processes:

[0061] Step 1: Erection of temporary pier 16, auxiliary pier 17 and bridge tower 21 substructure synchronous construction, and then erect push platform 19 on the common pier at one end of the bridge;

[0062] Step 2: Complete the superposition of the steel structure main body and the prefabricated slab on the pushing platform 19, pour the wet joints on site, then install the guide beam 20, and push into the entire section of the cable-stayed bridge;

[0063] Step 3: Complete the steel structure main body and the prefabricated slab push-up on the upper part according to the placement in step 2, and the construction of bridge tower 21 is completed;

[0064] Step 4: Install and tension stay cables, dismantle temporary facilities, carry out bridge deck pavement and guardrail installa...

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PUM

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Abstract

The invention relates to a prefabricated bridge deck slab, a cable-stayed bridge and a construction method of the prefabricated bridge deck slab, and belongs to the technical field of bridge structures.The prefabricated bridge deck slab comprises a deck slab body, a net-shaped structure composed of first reinforcing steel bars and second reinforcing steel bars is arranged in the deck slab body, and a plurality of open grooves are formed in the two ends, in the extending direction of the first reinforcing steel bars, of the deck slab at intervals; the two ends of the first reinforcing steel bar extend to the exterior of the panel, and the two ends of the first reinforcing steel bar are both bent by theta degrees anticlockwise or clockwise; reinforcing steel bar grooves used for containing reinforcing steel bars are formed in the two ends, in the extending direction of the second reinforcing steel bars, of the face plate at intervals, and the reinforcing steel bar grooves are formed between every two adjacent second reinforcing steel bars. According to the panel, the problem of steel bar interference when two panels are spliced can be avoided, and only one panel mold is needed for machining.

Description

technical field [0001] The invention belongs to the technical field of bridge structures, and in particular relates to a prefabricated bridge deck, a cable-stayed bridge and a construction method thereof. Background technique [0002] For long-span cable-stayed bridges or suspension bridges, the method of cantilever hoisting or cantilever pouring is generally used for construction. The main girder generally adopts a steel box girder or π-shaped concrete girder with a full section. Large; the overall cost of the steel box girder is high, and the hoisting of the entire section of the cantilever has high requirements on the transfer equipment and hoisting equipment, and the construction site often does not have the conditions for large-section transportation. In order to solve the aforementioned problems of heavy concrete girders and high cost of steel box girders, steel-concrete composite girder bridge structures emerged as the times require. Steel-concrete composite beams us...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01D11/04E01D19/00E01D21/00E01D101/26E01D101/30
CPCE01D19/125E01D11/04E01D19/00E01D21/00E01D2101/26E01D2101/30
Inventor 徐召李怀峰董滨王宏博贺攀岳秀鹏王洺鑫王溧马雪媛张国栋
Owner SHANDONG TRAFFIC PLANNING DESIGN INST
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