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A novel prefabricated detachable and repairable aseismic bridge column structure system and implementation method thereof

A seismic bridge and column structure technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of poor traffic environment and natural environment, and achieve the effect of shortening construction period, improving seismic performance and improving ductility

Inactive Publication Date: 2018-12-18
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] my country's current infrastructure construction is in full swing, but most of the urban bridge construction is a cast-in-place structure, which has a very bad impact on the surrounding traffic environment and natural environment

Method used

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  • A novel prefabricated detachable and repairable aseismic bridge column structure system and implementation method thereof
  • A novel prefabricated detachable and repairable aseismic bridge column structure system and implementation method thereof
  • A novel prefabricated detachable and repairable aseismic bridge column structure system and implementation method thereof

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Experimental program
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Embodiment Construction

[0025] Such as Figure 1-4 As shown, a new type of prefabricated detachable and repairable seismic bridge column structure system, the structure system includes cover beam 1, ultra-high performance concrete (UHPC) steel pipe 2, bridge column 3, SMA plastic hinge device 4 and cap 5.

[0026] The platform 5 is composed of a pre-embedded steel pipe 22 , a reserved hole 15 and a coupling nut 16 . The outside of the reserved hole 15 is inlaid with a steel sheet, which is used to insert the embedded steel pipe 24, and the coupling nut 16 is used to lock the SMA pipe 14 inside the SMA plastic hinge device 4. The existence of the coupling nut 16 and the reserved hole 15 makes the upper SMA The plastic hinge device 4 and the platform 5 are tightly engaged together, and the strong energy dissipation capacity of the SMA plastic hinge device is well exerted.

[0027] The SMA plastic hinge device 4 is composed of an ECC outer layer 12, a spiral steel ring 19, an embedded steel pipe 24, an...

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Abstract

The invention discloses a novel prefabricated detachable and repairable aseismic bridge column structure system and an implementation method, and belongs to the technical field of bridge structure design. The structural system is mainly composed of cover beams, ultra high performance concrete (UHPC) steel pipes, bridge pillars, SMA plastic hinge device sand bearing caps; the bridge column and thebearing cap are connected by the SMA plastic hinge device, The SMA plastic hinge device is composed of an ECC outer layer, a spiral steel ring, an embedded steel pipe and an SMA pipe. The SMA pipe ispierced through a bolt hole reserved in an upper plate and an lower plate of the SMA plastic hinge, and is connected with a bridge column and a bearing cap, which can provide good energy dissipation performance, so that the structural system has good seismic resistance. The invention discloses a novel prefabricated detachable repairable aseismic bridge column structure system can be realized by adopting the prefabricated assembly method, the assembly is simple, the construction period is short, each component can be disassembled, the specific part can be replaced or repaired in the process ofrepairing the bridge, the maintenance cost of the bridge can be greatly reduced, and the generation of construction waste can be greatly reduced, and the green environment protection can be achieved.

Description

technical field [0001] The invention belongs to the technical field of bridge structure design and relates to a method for realizing a novel prefabricated, disassembled and repairable anti-seismic bridge column structure system. Background technique [0002] my country's current infrastructure construction is in full swing, but most of the urban bridge construction is a cast-in-place structure, which has a very bad impact on the surrounding traffic environment and natural environment. Therefore, how to reduce the adverse impact of bridge construction on the surrounding environment, speed up the construction and shorten the construction period has become a priority in the construction of urban bridges. Therefore, prefabricated assembly technology has quickly gained people's attention, and urban bridge construction urgently needs this fast, efficient and green technology. [0003] Nowadays, my country's infrastructure is blooming everywhere. While developing the economy, it a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D19/04
CPCE01D19/02E01D19/04
Inventor 王添龙张达民
Owner GUANGDONG UNIV OF TECH
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