A prefabricated rc frame node with anti-drop beam energy dissipation device

Abstract

The invention relates to an assembled RC frame node with an anti-fall beam energy-dissipating device, comprising: a prefabricated concrete column, an anti-fall beam energy-dissipating device fixed in the prefabricated concrete beam, a steel cable, and an end steel plate. Among them, the built-in anti-fall beam energy dissipation devices in the left and right beams are connected by steel cables, and the end steel plates are installed in the middle of the steel cables; the beams and columns are respectively connected by steel sleeves to reserve longitudinal reinforcement to complete the concrete pouring. The invention solves the disadvantages of the existing assembled beam-column joints, such as complex on-site construction procedures, many wet operations on site, and inconvenient installation and operation of beams and columns; The energy consumption effect is in line with the concept of green and sustainable development.

Description

technical field [0001] The invention relates to the technical field of prefabricated building structures, in particular to an RC prefabricated frame node with an anti-drop beam energy dissipation device. Background technique [0002] At present, my country's building construction is mainly based on the traditional construction method of on-site construction. This method has a low degree of industrialization, a large demand for labor, large resource consumption, and serious environmental pollution. It cannot meet the needs of energy-saving, environmental protection, and sustainable development. Require. In recent years, in order to meet the needs of "green buildings" and "construction industrialization, housing industrialization", my country has begun to advocate the promotion of "industrialization mode" in construction, and has introduced relevant policies, and put forward clear development for prefabricated structures. Target. [0003] The main problems of my country's pref...

AI Technical Summary

Problems solved by technology

[0003] The main problems of my country's prefabricated node technology are high cost, inconvenient stacking of prefabricated components on site, more wet work on site, difficulty in ensuring the quality of beam-column joints, and complicated construction at joints. In addition to solving these problems, due to my country's high earthquake incidence The seismic fortification of buildings must also meet the standard requirements of "not damaged by small earthquakes, repairable by moderate earthquakes, and not collapsed by major earthquakes".

[0005] Existing prefabricated beam-column joints (such as authorized announcement numbers CN107237402A and CN107165272A) utilize prestressed steel bars to achieve the characteristics of low damage and self-resetting after earthquakes, but prestressed bars cannot be replaced after damage, resulting in post-earthquake reinforcement and maintenance. The cost is high, the reinforcement and maintenance process is cumbersome, and dangerous phenomena such as falling beams are not considered

Images