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Beam-column joints connecting medium-strength prestressed tendons at the bottom of beams with common steel bar sleeves

A technology of prestressed tendons and ordinary steel bars, applied in the direction of construction and building structure, can solve the problems of inconspicuous application advantages, insufficient applicability, inconvenient construction and construction, etc., to reduce beam cross-section or steel consumption, and reduce construction difficulty. , the effect of reducing complexity

Active Publication Date: 2018-08-21
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the above prefabricated frame beam-column joint connection technologies have problems such as insufficient applicability and inconvenient construction, which makes the application advantages of prefabricated prestressed concrete assembly integral frame structures not obvious

Method used

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  • Beam-column joints connecting medium-strength prestressed tendons at the bottom of beams with common steel bar sleeves
  • Beam-column joints connecting medium-strength prestressed tendons at the bottom of beams with common steel bar sleeves

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Embodiment Construction

[0017] Below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention will be further described:

[0018] figure 1 It is a schematic diagram of the beam-column node connection between the middle-strength prestressed tendons at the bottom of the beam of the present invention and the common steel bar sleeve, and figure 2 corresponding figure 1 Sectional view of the precast concrete beam and the upper part of the composite beam in the cast-in-place area. Such as figure 1 , figure 2 As shown, the beam-column joints connecting the medium-strength prestressed tendons at the bottom of the beam and the ordinary steel sleeves include precast concrete beams 1, the upper cast-in-place area of ​​composite beams 2, medium-strength prestressed tendons 3, precast concrete columns 4, and joint areas Post-casting section 5, ordinary stressed steel bar at the top of the beam 6, vertical stressed steel bar inside the column 7, connecting sl...

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Abstract

The invention discloses a beam-bottom medium-strength prestressed steel bar and ordinary steel bar sleeve connecting beam-column joint. The beam-bottom medium-strength prestressed steel bar and ordinary steel bar sleeve connecting beam-column joint comprises a precast concrete beam, a precast concrete column, a medium-strength prestressed steel bar, connecting sleeves, an aseismic steel bar, a joint area post-cast section beam-top ordinary stressed steel bar and an in-column steel bar. The medium-strength prestressed steel bar is matched at the bottom of the beam, extends out of the beam end and is connected with the aseismic steel bar through the sleeves so as to form the precast concrete beam-column joint with a precast concrete beam-column through post-cast concrete. In order to improve energy-dissipating capacity of the beam-column joint, post-cast sections at two ends of the precast concrete beam are subjected to high-ultimate-strain concrete casting. The beam-bottom medium-strength prestressed steel bar and ordinary steel bar sleeve connecting beam-column joint has the advantages that production and construction difficulties are lowered, the section height or steel amount of the precast concrete beam is decreased, and integrality and aseismicity of the beam-column joint are guaranteed.

Description

technical field [0001] The invention relates to a beam-column node connection structure in which medium-strength prestressed tendons at the bottom of a beam are connected with common steel bar sleeves, and belongs to the technical field of civil engineering prefabricated concrete structures. Background technique [0002] The frame structure is mainly constructed of beams, columns and beam-column joints, which is the most widely used structural form in construction engineering. The prefabricated prestressed concrete assembled monolithic frame structure meets the requirements of "building industrialization, housing industrialization" and green building. This type of structural system has the advantages of fast construction speed, low environmental pollution, guaranteed quality, and good durability. features. [0003] The core technology of precast prestressed concrete assembly integral frame structure is the joint connection structure form of precast concrete beams and preca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/21E04B1/22
CPCE04B1/21E04B1/22
Inventor 冯健陈耀蔡建国张晋
Owner SOUTHEAST UNIV
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