Rapid and efficient reinforcing structure for lateral-force-resistant prestressed diagonal members of urban bridge disaster pier column
A lateral force resistance and prestressing technology, applied in bridge reinforcement, bridge, bridge maintenance, etc., can solve the problems of no obvious enhancement of lateral force resistance effect, little effect of lateral force improvement, and many procedures required for reinforcement, etc. The effect of fast and efficient structural reinforcement, reduction of indirect economic losses, and reduction of reinforcement and repair time
Pending Publication Date: 2020-07-10
SOUTHEAST UNIV +2
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Problems solved by technology
The existing common reinforcement method adopts encrypted stirrups or steel lattice structure for reinforcement, which is a waste of material and the reinforcement effect is not very good, especially the effect of increasing the resistance to lateral force is not significant or does not significantly enhance the effect of lateral force. The process required for reinforcement more and longer
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[0019] specific implementation plan
[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] like Figure 1-2 As shown in the figure, a rapid and efficient reinforcement structure of the disaster-damaged pier column anti-lateral force prestressed cable-stayed rods, including concrete foundation cap 1, concrete pier column 2, anti-lateral force prestressed cable-stayed rods 3, steel backing plate 4, and Area 5, stress conversion angle steel 6, structural glue 7 and anchor rod 8;
[0022] The concrete foundation cap 1 is provided with a concrete pier column 2, and the column root of the concrete pier column 2 is provided with a plurality of anti-lateral force prestressed diagonal stay rods 3, and the shafts of the anti-lateral force prestressed diagonal stay rods 3 are connected to the concrete foundation bearing. The horizontal plane of platform 1 forms an included angle of 45 degrees;
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The invention discloses a rapid and efficient reinforcing structure for lateral-force-resistant prestressed diagonal members of an urban bridge disaster pier column. The rapid and efficient reinforcing structure comprises a concrete foundation platform, a concrete pier column, the lateral-force-resistant prestressed diagonal members, a steel base plate, a removing area, stress conversion angle steel, structural adhesive and an anchor rod. The concrete pier column is arranged on the concrete foundation bearing platform, a plurality of lateral-force-resistant prestress diagonal members are arranged at the root of the concrete pier column, and 45-degree included angles are formed between the bar bodies of the lateral-force-resistant prestress diagonal members and the horizontal plane of the concrete foundation bearing platform. According to the structure, only part of a pier column concrete protective layer needs to be removed, the area of the original pier column protective layer damagedby a traditional reinforcing and repairing method is smaller than that of the original pier column protective layer damaged by the traditional reinforcing and repairing method, the reinforcing and repairing time is shortened, time and materials needed by disaster recovery of the bridge are reduced, the speed is higher, and indirect economic losses caused by long bridge repairing time can be reduced.
Description
technical field [0001] The invention relates to the field of engineering construction reinforcement, in particular to a fast and efficient reinforcement structure of a city bridge disaster-damaged pier column anti-lateral force prestressed diagonal tie rod. Background technique [0002] There are more and more urban bridge constructions, which have become the lifeline of urban development at high speed. In the actual use process, many complex accidental disasters and sudden accidents will be encountered, which often cause damage to bridge structures and affect or interrupt urban traffic. Therefore, in recent years, we have been committed to carrying out special work on the emergency assessment of urban bridge disaster damage and the research on the complete set of technologies for rapid reinforcement and repair. [0003] When a disaster occurs, engineering personnel will quickly conduct a safety appraisal of the bridge to determine whether its structure can continue to be us...
Claims
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IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 顾一中顾瑞南张伟王枫刘志强蒋素红刘浥顾永荣丁辉徐逸帆李浩宇
Owner SOUTHEAST UNIV