Replaceable beam-column joint earthquake damage control device

Abstract

The invention provides a replaceable beam-column joint earthquake damage control device. The device comprises flange energy consumption fuses which are arranged in connection gaps of beam flange plates arranged in pairs; the upper face and the lower face of each flange plate are both provided with the corresponding flange energy consumption fuse; the flange energy consumption fuses are provided with bolt holes; the flange energy consumption fuses are fixedly connected with beam flanges through friction type high-strength bolts. The replaceable beam-column joint earthquake damage control device is simple and reliable in structure and convenient to install; damage control can be performed on the structure, and connecting joints are protected; vibration energy caused by an earthquake is dissipated, and vibration responses of a building under an earthquake are reduced; replaceability is good, and after an earthquake ends, damaged elements can be fast replaced under the condition that use of the building is not affected.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of structural engineering, in particular to a replaceable seismic damage control device for beam-column joints. Background technique [0002] The steel structure has the characteristics of high strength, light weight, good seismic performance, and short construction period, and is considered to be one of the structural forms with the best seismic performance. With the development of steel structure design, manufacturing and installation technology, its application in engineering practice is becoming more and more extensive. However, a large number of earthquake damage data and experimental studies have shown that: under the action of an earthquake, the stress value at the joints of beams and columns is relatively large, especially the steel near the welding part is prone to brittle fracture, which seriously affects the safety of the structure under the earthquake and causes the building to f...

AI Technical Summary

Problems solved by technology

[0004] A large number of tests have shown that this type of joint exhibits good ductility under earthquake action, but it also has obvious defects and deficiencies: First, in order to prevent stress concentration at the weakened section, the precision of the processing technology is very high during the construction process. Complex, long construction period, high economic consumption

Therefore, after such joints are subjected to strong earthquakes, plastic hinges are formed at the ends of the beams, with large residual deformations, which cannot achieve the goal of rapid replacement or repair, and further improvement is needed.

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