Energy dissipating element of grouting sleeve

Abstract

The invention relates to an energy dissipating element of a grouting sleeve, which belongs to the field of structural engineering for fixing buildings and comprises an inner tube and an outer tube. A cover plate is arranged at one end of the inner tube, the inner tube together with the cover plate is divided into a plurality of independent single blocks along the axis direction of the inner tube, each single block consists of a tubular wall and a cover plate block, the outer wall of the inner tube which is divided into blocks is attached onto the inner wall of the outer tube and inserted into the outer tube so that an inner tube insertion section and an inner tube exposed section are formed, the cover plate which is divided into blocks is disposed in the end of the inner tube insertion section, and expanding cement grout is injected into the inner tube insertion section through the inner tube exposed section, so that an expanding cement grout body is formed. The energy dissipating element of the grouting sleeve is capable of guaranteeing construction quality and increasing friction among sleeves effectively, has the advantages of convenience in processing and mounting, economy and reliability, and can be used as a structural load-bearing component when in an earthquake non-resistant state.

Description

technical field [0001] The invention relates to the field of structural engineering of fixed buildings, in particular to an energy-dissipating support for reducing damage to buildings or structures caused by earthquake load effects. Background technique [0002] Structural control technology for earthquake resistance has become the main research object of building structure design. Structure control technology includes active structure control technology and passive structure control technology. Energy-dissipating bracing technology is one of the more common passive control technologies, and it is a very practical way to improve the seismic performance of structures in the seismic fortification of new buildings and the seismic reinforcement of existing buildings. The commonly used energy-dissipating supports in the existing passive control technology mainly include frictional energy-dissipating shock-absorbing supports, viscous and viscoelastic damper energy-dissipating sho...

AI Technical Summary

Problems solved by technology

Although the casing can be used as a load-bearing member of the building structure in a non-earthquake state, it is easy to process, and it can solve the technical problems of energy dissipation and shock absorption of the building more economically, but there is a problem: The chemical prestress of the expanded cement slurry between the gaps of the pipe lap makes the contact surface of the expanded cement sheath and the steel pipe compacted to increase the friction coefficient. Due to the friction between the expanded cement sheath and the steel pipe, the expanded cement sheath will are worn out, causing rapid degradation in their performance

Images