A prefabricated beam-column joint with recoverable function and anti-drop beam device

Abstract

The invention relates to an assembled beam-column node with a recoverable function and an anti-fall beam device, comprising: prefabricated concrete columns, built-in anti-compression dampers respectively fixed in the prefabricated concrete beams, and anti-fall beam components; wherein, the prefabricated The reserved longitudinal reinforcement of the lower column in the concrete lower column is connected with the reserved longitudinal reinforcement of the upper column in the prestressed concrete upper column through a reinforcement sleeve; the upper longitudinal reinforcement of the beam passes through the pre-embedded stirrup of the beam and pours the node concrete. The invention solves the disadvantages of the existing assembled beam-column joints, such as complicated on-site construction procedures and poor anti-seismic effect of the assembled beam-column joints; the invention can be directly used in beam-column joints, has quick operation and installation, easy replacement of dampers when damaged, and low maintenance cost.

Description

technical field [0001] The invention relates to the technical field of assembled building structures, in particular to an assembled beam-column node with a recoverable function and an anti-drop beam device. Background technique [0002] At present, my country's building construction mainly adopts traditional construction methods based on 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 requirements of energy saving, environmental protection, and sustainable development. In recent years, in order to meet the needs of "green buildings", "construction industrialization" and "housing industrialization", my country has begun to advocate the promotion of "industrialization mode" in construction, and has introduced relevant policies, which clearly put forward the requirements for prefabricated structures. development goals. [0003] my country's pref...

AI Technical Summary

Problems solved by technology

[0007] Existing prefabricated beam-column joints (such as authorized announcement numbers CN107237402A and CN107165272A) use prestressed steel bars to achieve low-damage self-resetting after earthquakes, but prestressed bars cannot be replaced after damage, and the post-earthquake reinforcement maintenance process is cumbersome and expensive. High; there is also the method of using external dampers at the joints of assembled beams and columns (such as authorization numbers CN108343170A and CN206157894U), which uses the characteristics of small deformation of viscoelastic materials to achieve energy consumption. The advantage is that the dampers can be replaced after damage. However, because the damper is externally sealed, the service life of the damper is shortened, and it takes up a lot of external space.

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