Semi-rigid connection-flection restriction support steel skeleton construction

Abstract

The invention belongs to the technical field of multistoried and high-rise buildings, particularly relates to a semi-rigid connection-bending and constraining support steel frame structure and is composed of a frame column, a frame beam and a bending and constraining support; the frame beam is connected with the frame column by adopting the semi-rigid connection mode and the bending and constraining support is arranged into a center support mode; based on the superiority of the steel structure, the invention can realize the optimum design, save the used steel quantity, reduce the workload of site welding, raise the construction speed, guarantee the quality of connection and is beneficial to structure arrangement; when used in earthquake areas, the restoration after earthquake is convenient and the earthquake damage can be reduced; when the structure is used in the multistoried and high-rise building, the prospect of application is wide.

Description

technical field [0001] The invention belongs to the technical field of multi-storey and high-rise buildings, and in particular relates to a semi-rigid connection-buckling restraint supporting steel frame structure. Background technique [0002] Nodes, as the hubs of connection and force transmission in the frame, are of great significance to the full play of the performance of the entire structure. In the Northridge earthquake in the United States in 1994 and the Kobe earthquake in Japan in 1995, many welded rigid joints suffered brittle failure due to poor ductility. This phenomenon has attracted the attention and attention of relevant organizations and experts. my country is located at the intersection of the world's two major seismic tectonic systems, and is located in an earthquake-prone zone with frequent and strong earthquakes. In the traditional analysis method, in order to facilitate the structural analysis, the beam-column joints are often simplified into rigid joi...

AI Technical Summary

Problems solved by technology

During moderate and strong earthquakes, ordinary braces in centrally braced frames will buckle in compression and yield in tension, and buckling will reduce the bearing capacity in compression, thereby limiting the energy dissipation capacity of braces as lateral force-resistant members

The eccentrically braced frame restricts the buckling of the brace through the yield of the eccentric beam section, which can make the structure have better energy dissipation performance. However, due to the yield of the eccentric beam section, the main structure is damaged, and the structural repair after the earthquake is more difficult.

[0004] The existing rigid-joined steel structure system needs to be welded on site during construction, which has the disadvantages of slow construction speed, increased construction difficulty, and difficulty in guaranteeing welding quality

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