Haunch supporting type energy consumption bearing brace and its construction method

An energy-consuming bracing and axillary bracing technology, applied in protective buildings/shelters, building components, earthquake-proof, etc., can solve problems such as low energy consumption capacity of prestressed tendons connecting beams and columns, low energy consumption of concrete, casualties, economic losses, etc. Achieve the effect of avoiding overall structural damage, improving earthquake resistance, and reducing economic losses

Active Publication Date: 2018-05-29
BEIJING JIANYUAN TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of armpit load-bearing energy-dissipating support and its construction method, to solve the problem of low energy dissipation capacity of existing prestressed tendons connecting beams and columns under earthquake action and the premature compression of concrete caused by the rupture of prestressed tendons Collapse, causing beams to fall and finally lead to technical problems of economic losses and casualties

Method used

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  • Haunch supporting type energy consumption bearing brace and its construction method
  • Haunch supporting type energy consumption bearing brace and its construction method
  • Haunch supporting type energy consumption bearing brace and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Embodiment one sees Figure 1-7 As shown, a beam-column connection structure, the beam-column is connected through prestressed tendons 14 . An armpit-type load-bearing energy-dissipating support, which is fixedly connected at the armpit of the connection node between the structural column 7 and the structural beam 8, and includes a shear support steel plate 3, an energy-dissipating strip steel plate 1 and an out-of-plane restraint steel plate sleeve 2.

[0054] The shear support steel plate 3 is centered along the width direction of the structural beam 8 at the armpit of the connection node, parallel to the plane where the connection node is located, the shear support steel plate includes a horizontal plate 31 and a vertical plate 32, and the upper surface of the horizontal plate 31 is tightly closed. Attached to the lower surface of the structural beam 8 and fixedly connected by the first connecting piece 9 , the outer surface of the riser 32 is closely attached to the...

Embodiment 2

[0070] Embodiment two see Figure 8-10 As shown, the difference from Embodiment 1 is that two armpit-type load-bearing energy-dissipating supports are arranged side by side at the armpit of the joint node, and the first connector 9 is provided with two rows, which are respectively located on all out-of-plane constrained steel plates. On the outermost two sides of the cover 2, the second connectors 10 are also provided in two rows, which are respectively located on the outermost sides of all out-of-plane restraint steel plate sets 2 .

[0071] The difference from Embodiment 1 is that the out-of-plane restraint steel plate sleeve 2 is composed of two side plates with the same outer profile, which are relatively sandwiched on both sides of the energy-dissipating strip steel plate 1 and fixedly connected. The lateral side of each side plate The cross-section is trapezoidal, and the middle part of the inner surface and along the oblique installation direction of the energy-dissipat...

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Abstract

The invention discloses a haunch supporting type energy consumption bearing brace and its construction method. The energy consumption bearing brace comprises an anti-shear supporting steel plate, an energy consumption strip steel plate and an external restriction steel plate sleeve; the anti-shear supporting steel plate comprises a cross plate and a vertical plate, the upper end of the energy consumption strip steel plate is fixed with the cross plate, and the lower end thereof is fixed with the vertical plate; the middle part of the external restriction steel plate sleeve is provided with a cavity space, and the energy consumption strip steel plate is inserted to the cavity space; an energy consumption displacement gap is reserved between the top end face of the external restriction steelplate sleeve and the lower side surface of the cross plate. On the one hand, the haunch supporting type energy consumption bearing brace consumes energy; on the other hand, it prevents beam from falling; when the prestress rib in the beam is failed, the anti-shear supporting steel plate can bear the shear force from the beam and provides a second defense line for the structure. One beam pillar node can use one or more braces, multiple braces can be a parallel system when they are worked together. The brace is convenient and rapid to replace after shock, and provides good after-shock restorability.

Description

technical field [0001] The invention belongs to the technical field of shock absorption in structural engineering, in particular to a shock absorption device and a construction method for enhancing the shear resistance capacity of beam-column joints of an assembled structure. Background technique [0002] Building industrialization is an important concept in my country's construction field in recent years. Among them, the building structure using prestressed assembly has the characteristics of fast construction speed and controllable quality, and has broad prospects. However, the current bottleneck restricting prestressed prefabricated buildings is that the beam and slab components only rely on the friction force generated by the prestress on the beam-column interface to bear the vertical load, with a single line of defense and poor reliability. At the same time, the structural system formed only by prestressed tension has a nonlinear elastic response on the connection inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 閤东东苏宇坤滕睿陈曦展兴鹏王媛万金国陈晗王涛李文峰苗启松
Owner BEIJING JIANYUAN TECH DEV
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