Novel four-casing-pipe buckling restrained brace

Abstract

The invention discloses a novel four-casing-pipe buckling restrained brace. The novel four-casing-pipe buckling restrained brace comprises an inner restrained steel pipe. The outer side of the inner restrained steel pipe is sleeved with an energy-consumption core material pipe. The outer side of the energy-consumption core material pipe is sleeved with an outer restrained steel pipe. The energy-consumption core material pipe and the inner restrained steel pipe are connected with a first force transmission plate. The first force transmission plate is fixedly connected with a first connecting part. The energy-consumption core material pipe is fixedly connected to the inner side of the outer restrained pipe. The outer side of the outer restrained pipe is fixedly connected with an outer sleeving force transmission steel pipe. The outer side of the first force transmission plate is closely attached to the inner side of a first sliding plate. The edges of the first force transmission plate and the first sliding plate are closely attached to the outer restrained steel pipe. The outer restrained pipe, the energy-consumption core material pipe and the inner restrained steel pipe are closelyattached to the inner side of a second sliding plate. A prestress material is arranged between the second sliding plate and the first sliding plate. The prestress material sequentially penetrates thefirst sliding plate and the second sliding plate and is anchored to a first anchorage device and a second anchorage device. The inner side of a second force transmission plate is fixedly connected with the outer sleeving force transmission steel pipe, and the outer side of the second force transmission plate is fixedly connected with a second connecting part. The novel four-casing-pipe buckling restrained brace is reliable, reasonable and great in practicability.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a novel four-casing buckling restraint support. Background technique [0002] In recent years, there have been many strong earthquakes in the world, which have caused serious damage to a large number of building structures. In order to reduce the dynamic response of building structures under earthquake and improve the seismic performance of structures, scholars from all over the world have proposed different structural vibration control methods. According to the nature, it can be divided into active control, passive control, intelligent control, and semi-automatic control. Among them, the passive control method is to weaken the seismic response by using the energy-dissipating components of the structure to consume seismic energy. Setting buckling restraint supports is a passive control method. . Although the existing traditional buckling-restrained bracing can consume...

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Problems solved by technology

[0004] In order to overcome the disadvantages of residual deformation and uncertainty of the location of yield failure of traditional buckling-restrained braces after an earthquake, as well as the out-of-plane instability of ordinary "one" and "ten" braces, the purpose of the present invention is to provide a new The four-casing buckling-constrained support can achieve fixed-point yielding and eliminate its residual deformation after the earthquake, thereby realizing the recoverability of the structure and reducing the repair cost of the post-earthquake structure. The structure is reliable and reasonable, and has strong practicability

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