Connection structure and construction method of friction damper assembled frame joints

Abstract

A connection structure of friction damper assembled frame joints, in which pre-stressed steel strands are installed in the steel strand pre-embedded pipes, prefabricated reinforced concrete beams and prefabricated reinforced concrete columns are connected by prestressed steel strands, beams and columns The joints are connected with high-strength grouting materials to form beam-column connection nodes, and friction dampers are installed at the beam-column connection nodes to form a connection structure of integrally prestressed additional friction damper-assembled frame nodes. The construction method includes aligning the prefabricated reinforced concrete beam with the damper embedded pipe on the prefabricated reinforced concrete column; passing the steel strand into the steel strand embedded pipe of the prefabricated reinforced concrete beam; filling the joint with high-strength grouting material, Form the overall node of the beam and column; penetrate the friction damper fixing screw in the damper pre-embedded pipe to install the friction damper. The structure can effectively improve the energy dissipation capacity of the prefabricated frame structure under earthquake action, ensure the effective connection of columns and beams, effectively consume earthquake energy, and protect the building structure.

Description

technical field [0001] The invention relates to a connection structure of a friction damper assembled frame node and a construction method thereof, is a novel prefabricated frame structure node connection and energy consumption technology, and belongs to the field of anti-seismic technology of an assembled concrete frame structure in civil engineering. Background technique [0002] my country is an earthquake-prone country, and most areas are in seismic fortification areas. In actual engineering construction, prefabricated frame structures can reduce engineering costs, speed up construction, reduce resource consumption, and reduce environmental pollution. It is one of the development directions of my country's construction industry. Compared with cast-in-place reinforced concrete frame structures, the energy dissipation capacity of prefabricated reinforced concrete frame structure nodes is slightly insufficient, and the low seismic energy dissipation capacity of prefabricate...

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Problems solved by technology

[0003] The purpose of the present invention is to address the defects of low seismic energy consumption capacity of the assembled frame structure nodes in the prior art, because the node strength and energy consumption capacity of the building structure are important indicators of the seismic performance when an earthquake occurs, in order to reduce the impact of the earthquake on the structure damage degree, providing a connection structure and construction method of friction damper assembled frame joints

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