Bent cap structure prefabricated and assembled in split mode

A prefabricated assembly and prefabricated beam technology, applied in the erection/assembly of bridges, bridges, bridge parts, etc., can solve the problems of reducing the efficiency and advantages of prefabrication assembly, complex on-site construction, increasing on-site construction workload and construction risks, etc., to achieve simplification The effect of joint reinforcement arrangement, small construction workload and fast construction speed

Pending Publication Date: 2021-11-30
SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The existing technology can meet the design and construction requirements of prefabricated assembly, but there are complex problems in on-site construction, which are mainly reflected in three aspects: ①Temporary supports are required to support the prefabricated components; ②Wet joint schemes require cast-in-place formwork; ③ Rear piercing prestressed steel beam
The above three problems increase the workload and construction risks of on-site construction, and reduce the efficiency and advantages of prefabricated assembly

Method used

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  • Bent cap structure prefabricated and assembled in split mode
  • Bent cap structure prefabricated and assembled in split mode
  • Bent cap structure prefabricated and assembled in split mode

Examples

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Embodiment

[0044] The specific structure and construction method of a cover beam structure prefabricated and assembled in pieces according to the present invention are given in detail by the following examples and accompanying drawings.

[0045] A kind of prefabricated and assembled cover beam structure of the present invention is as attached Figure 1~4As shown, and in conjunction with the accompanying drawings, the description is as follows:

[0046] 1. If figure 1 As shown, the cover beam 1 is directly installed on the top of the pier column 2, and there is no need to set a temporary support structure for the cover beam. The joint between the cover beam 1 and the pier column 2 is connected by a grouting sleeve or a grouted metal bellows, and the wet joint material is high-performance concrete.

[0047] The transverse section of the cover beam 1 is composed of the left precast beam 3, the right precast beam 4 and the middle post-cast beam 5; the left precast beam 3 and the right prec...

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Abstract

The invention provides a bent cap structure prefabricated and assembled in a split mode. The transverse section of a bent cap is composed of a left side prefabricated beam, a right side prefabricated beam and middle post-pouring cross beams. The bent cap is located on the top of a pier stand column. The left side prefabricated beam and the right side prefabricated beam are full-length in the length direction of the bent cap and are connected through post-cast cross beams which are distributed at intervals; intermittent trapezoidal notches are reserved in the upper portions of the left side prefabricated beam and the right side prefabricated beam, trapezoidal post-pouring cross beam notch structures are formed after assembly, and the post-pouring cross beam notch structures are arranged at intervals in the length direction of the bent cap. The bent cap structure has the advantages of being small in site construction workload, high in operability, high in construction speed, good in structural integrity, good in durability and the like. The bent cap structure is suitable for bent caps which are heavy and need to be transported in a segmented mode.

Description

technical field [0001] The invention belongs to the technical field of bridge prefabrication and assembly, and in particular relates to a cover beam structure which is prefabricated and assembled in pieces. Background technique [0002] Bridge prefabrication and assembly technology has developed rapidly in recent years. Prefabrication and assembly technology includes factory prefabrication, transportation and hoisting of prefabricated components, and on-site connection technology. The transportation and hoisting of prefabricated components is limited by road transportation along the route and on-site hoisting conditions, so the weight of prefabricated components needs to be controlled. [0003] The viaduct cover girder has the characteristics of concentrated force, large size and heavy weight. As a force-transmitting component between the bridge superstructure and substructure, its structural size is related to the bridge width, span and the position of the pier column. Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D21/00
CPCE01D19/00E01D21/00
Inventor 马骉赵晓梅王巍吴琰杜林清苏俭
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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