Precast concrete frame beam joint

Abstract

The invention belongs to a precast concrete frame beam joint of a precast concrete fabricated structure. The technical scheme includes: a first beam section of a precast concrete frame beam is in butt joint with a second beam section of the precast concrete frame beam, and a first square steel pipe is horizontally buried to the end of the first beam section of the precast concrete frame beam; a second square steel pipe is horizontally buried to the second beam section of the precast concrete frame beam, and the first square steel pipe and the second square steel pipe are identical in section; a slide square steel pipe horizontally and internally sleeves the second square steel pipe; a braking device is fixed to the top of the slide square steel pipe, and the top of the second steel pipe is provided with an opening allowing slide of the braking device; the braking device drives the slide square steel pipe to slide in the second square steel pipe to the first square steel pipe; the surface of the slide square steel pipe is coated with a polytetrafluoroethylene film. By modification of a beam column joint of a conventional precast structure into the precast concrete frame beam joint, an anti-seismic concept of 'strong joint and weak component' is realized.

Description

technical field [0001] The invention belongs to the field of building structure engineering, and in particular relates to a node structure of a prefabricated concrete assembly structure. Background technique [0002] Building industrialization is an important development direction in my country's construction field at present. It can not only effectively shorten the construction period, but also greatly reduce building energy consumption and construction waste, improve building functions and structural performance, and conform to the concept of energy-saving and environmentally friendly building development. Prefabricated prefabricated structure is the main technical means to realize the industrialization of construction. Prefabricated concrete structure has been widely used in Europe, Japan, and Hong Kong. In recent years, prefabricated concrete structure has flourished in the residential field of our country. [0003] At present, my country's prefabricated structures are r...

AI Technical Summary

Problems solved by technology

Temporary support will increase construction costs and procedures, and cannot reflect the advantages of fast construction of prefabricated structures

[0006] 3. High requirements for industrialization

Conventional prefabricated beam-column joints usually use grouting technology, which is difficult to construct, requires high operational technology, difficult supervision, and high construction costs. Factors often cannot adapt to the development of prefabricated structures in China

Images