Anti-seismic construction measure for controlling appearance of plastic hinges at ends of frame beam

Abstract

The invention relates to an anti-seismic construction measure for controlling appearance of plastic hinges at ends of a frame beam, which is characterized in that: quake intercepting strips are arranged on the lateral surfaces of end parts of the frame beam in a certain length range to separate the end parts of the frame beam and a cast-in-place reinforced floorslab; each quake intercepting strip is formed by superposing a prefabricated steel wire concrete block, a benzene board and a thin steel plate, and the concrete block is embedded with anti-cracking thin steel wires; the quake intercepting strips can be manufactured into prefabricated parts in a factory; and in the construction, after a beam-slab template is erected, reinforcing steel bars of the frame beam are bound firstly, then the quake intercepting strips are fixed on the lateral surfaces at the ends of the beam, reinforcing steel bars of the floorslab are bound and the thin steel wires are wound on reinforcing steel bars under the slab, and finally concrete is cast integrally to form a quake intercepting frame structural system.

Description

technical field [0001] The invention is an anti-seismic construction measure for controlling the appearance of plastic hinges at the ends of frame beams, a new type of anti-seismic construction measure that breaks through the tradition, and provides basic structural guarantee for anti-seismic disaster reduction and disaster prevention of frame structure buildings. Background technique [0002] The recorded earthquakes in my country can be traced back to thousands of years ago, but the history of digital records of earthquakes is only a few decades. Due to the short research time, the basic intensity earthquakes in the statistical sense currently used in my country still have great differences. Certainty. To reduce earthquake damage while considering the current economic development status, Chinese engineers and scientists have proposed three countermeasures: "fortification standard countermeasures, differential treatment countermeasures and technical legislative countermeasur...

AI Technical Summary

Problems solved by technology

Unfortunately, previous earthquake damages have shown that frame structures designed according to the principle of "strong columns and weak beams" always have the failure characteristics of "strong beams and weak columns", that is, the frame structures are mainly damaged at the ends of the columns rather than the ends of the beams, which is different from the design The basic principles are seriously inconsistent, making it difficult to justify the principle of seismic internal force adjustment

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