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Assembled active beam node of built-in X-shaped low-yield-point type steel connecting piece

A technology with low yield point and connecting nodes, applied in the direction of joists, girders, truss beams, etc., can solve the problems of easy development and penetration of cracks, difficulty in concrete vibrating, difficult pouring and compaction, etc., so as to improve the shear resistance of the interface and improve the ductility. and deformability, the effect of avoiding brittle failure

Active Publication Date: 2017-10-17
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Assembled active beam node of built-in X-shaped low-yield-point type steel connecting piece
  • Assembled active beam node of built-in X-shaped low-yield-point type steel connecting piece
  • Assembled active beam node of built-in X-shaped low-yield-point type steel connecting piece

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Embodiment 1

[0034] The specific embodiment of the present invention will be described in detail in conjunction with the accompanying drawings.

[0035] The first stage:

[0036] For a super high-rise reinforced concrete frame-core tube structure, according to the structural design requirements, the prefabricated beam intersects with the shear wall outside the plane, the cross section of the beam is 400mm×900mm, and the beam span is 10m. For HRB400, determine that the extension length of the connecting section 3 is 1000mm, the width is 400mm, the length of the post-casting section is 1000mm, and the part in contact with the post-casting node is set with a horse-toothed bar, and the connecting steel bars are arranged in the 3rd, and the labels and diameters of the steel bars They all correspond to the ordinary stressed steel bars in the prefabricated beam one by one, the upper and lower longitudinal bars and torsion-resistant waist bars all protrude 500mm from the beam plane, and the proces...

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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 an assembled energy-dissipating beam connection node with built-in X-shaped low-yield point steel connectors, which meet the bearing capacity requirements under normal loads, and can ensure the node and the overall structure through local energy consumption under earthquake action It has excellent bearing capacity and anti-seismic ability, is easy to construct, and improves the mechanical properties of fabricated beam joints to a large extent, and belongs to the technical field of fabricated concrete structures. Background technique [0002] In recent years, the concept of construction industrialization has been continuously promoted in our country and applied in some projects. The promotion of prefabricated buildings is an important way to realize the industrialization of construction, and prefabricated concrete is an important part of prefabricated buildings. This kind of building form can improve the construction quality, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/02E04C5/16E04H9/02E04B1/98
CPCE04C3/02E04C5/165E04H9/021
Inventor 闫维明崔涛钱增志周大兴何浩祥
Owner BEIJING UNIV OF TECH
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