Steel coupling beam capable of being replaced after strong earthquake

Abstract

The invention discloses a steel coupling beam capable of being replaced after a strong earthquake, which comprises a replaceable energy dissipation beam section and non-energy-dissipation beam sections arranged at the two ends of the replaceable energy dissipation beam section. The replaceable energy dissipation beam section and the non-energy-dissipation beam sections are connected through end plates and high-strength bolts; the height of the section of the replaceable energy dissipation beam section is lower than that of the section of the non-energy-dissipation beam section; the replaceable energy dissipation beam section is uncoupled with a floor slab; the yield bearing capacity of the non-energy-dissipation beam section is larger than that of the replaceable energy dissipation beam section; the replaceable energy dissipation beam section shears yielding and dissipates earthquake energy under the effect of strong earthquake, and the non-energy-dissipation beam sections at the two ends maintain elasticity; and as the replaceable energy dissipation beam section is uncoupled with the floor slab, not only can the cracking of the floor slab under the effect of earthquake be reduced, but also the energy dissipation beam section can be rapidly replaced after the earthquake. The steel coupling beam has high energy dissipation, can be rapidly repaired after the earthquake, is convenient for construction, can enhance the capacity of rapid function recovery of high-rise structures after the strong earthquake, and has wide market promotion and application prospects.

Description

technical field [0001] The invention relates to the field of construction engineering and anti-seismic technology of structures, in particular to a replaceable steel connecting beam after a strong earthquake. Background technique [0002] Having many high-rise and super high-rise buildings is an important feature of modern cities. High-rise and super high-rise buildings have a large population and long expected service life. Once earthquake damage occurs, a large number of users will move out for refuge, which will seriously affect social stability and the production and life of the people. Due to the large volume and complex structural system of high-rise buildings, the economic cost and time cost of post-earthquake repair and reinforcement will be significantly higher than those of low- and medium-rise buildings. For some important high-rise buildings as urban commercial or financial centers, the loss of business suspension caused by earthquake damage may exceed the cost ...

AI Technical Summary

Problems solved by technology

However, due to the heavy weight of the entire steel coupling beam in high-rise buildings, and its two ends are embedded in the reinforced concrete wall, it is difficult to directly replace it after the earthquake, and the post-earthquake repair of the steel coupling beam is very difficult

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