A prefabricated energy-dissipating beam node with built-in x-shaped low-yield point steel connectors

Abstract

The invention discloses an assembled active beam node of a built-in X-shaped low-yield-point type steel connecting piece. The assembled active beam node mainly comprises a prefabricated beam, a beam end connecting section, a connecting channel steel, a common stressed reinforcement, a profile steel connecting piece, a post-cast node and a connecting sleeve. One connecting section of the prefabricated beam which is produced on site and provided with a combed joint is arranged, the prefabricated beam is transported to the site after being manufactured in a factory and positioned through a high-strength bolt and the profile steel connecting piece on site, then the prefabricated beam and the reserved connecting reinforcement of the connecting section are connected through a grouting sleeve and poured with ultrahigh-tenacity cement-based composite materials, thus being capable of forming a reliable connecting node. Through the assembled active beam node, the on-site construction difficulty can be reduced, the energy consumption capability and deformation capability of the shearing wall-beam node can be improved, and the overall anti-seismic property of the wall-beam node can be guaranteed.

Description

Technical field [0001] The invention relates to a prefabricated energy dissipating beam connection node with a built-in X-shaped low yield point steel connector, which meets the bearing capacity requirements under normal use loads, and can ensure the integrity of the node and the structure by means of local energy dissipation under the action of an earthquake The load-bearing capacity and seismic resistance of the steel, the construction is simple, and the mechanical properties of the fabricated beam nodes are improved to a large extent, which belongs to the technical field of fabricated concrete structures. Background technique [0002] In recent years, the concept of building industrialization has been continuously promoted in our country and has been applied in some projects. Popularizing prefabricated buildings is an important way to realize the industrialization of buildings, and prefabricated concrete is an important part of prefabricated buildings. This kind of building f...

AI Technical Summary

Problems solved by technology

However, at present, assembly beams are often difficult to locate on site, the interface between post-cast concrete and prefabricated components is easy to crack under load, and the cracks are easy to penetrate after cracking, and it is difficult to vibrate the concrete at the beam end due to the reinforcement of the stirrups, making it difficult to pour densely. And other issues

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