Shape memory alloy composite flange friction steel structure beam column splicing joint

A memory alloy and memory alloy wire technology, which is applied in building structures, buildings, etc., can solve the problems of poor performance of shape memory alloys, hinder safe application, dissipation, etc., and achieve the effect of clear force and strong practicability.

Active Publication Date: 2016-06-15
SUZHOU UNIV OF SCI & TECH
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Problems solved by technology

In these joints, the shape memory alloys used are mainly in the form of screws, bolts, etc. However, due to the mechanical sensitivity of shape memory alloy bolts, avoiding the fracture of the threaded part at the end is a major problem hindering its safe application; in addition, currently At the same level of shape memory alloy production and processing, the performance of sha

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  • Shape memory alloy composite flange friction steel structure beam column splicing joint
  • Shape memory alloy composite flange friction steel structure beam column splicing joint
  • Shape memory alloy composite flange friction steel structure beam column splicing joint

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[0023] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and the embodiments.

[0024] Reference Figure 1 to Figure 4 As shown, a shape memory alloy composite flange friction steel structure beam-column splicing joint includes a column 1, a corbel 2 and a beam 3. The column 1 is connected along the beam 3 and extends out of the corbel 2, so The web of the corbel 2 and the web of the beam 3 are spliced ​​together by a web splicing plate 5 and a web bolt 4, and the flange of the corbel 2 and the flange of the beam 3 are spliced ​​by a flange The plate 7 and the double nut bolt 8 are spliced ​​together, and a shape memory alloy wire 6 is wound between the double nut bolt 8 and the flange splicing plate 7, and the double nut bolt 8 applies an appropriate precondition to the shape memory alloy wire 6. stress.

[0025] There is a gap at the joint between the corbel 2 and the web and flange of the beam 3, and the bolt holes on th...

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Abstract

The invention discloses a shape memory alloy composite flange friction steel structure beam column splicing joint.The joint is composed of a column, a bracket, a beam, a web plate bolt, a web plate splicing plate, a shape memory alloy wire, a flange splicing plate and double nuts and bolts, wherein the bracket stretches from the column in the direction of the beam, a web plate of the bracket and a web plate of the beam are spliced through a high-strength bolt, a flange of the bracket and a flange of the beam are spliced through the double nuts and bolts, and the shape memory alloy wire is wound between the double nuts and bolts.According to the joint, energy-dissipating capacity is provided through friction damping in a small earthquake, energy-dissipating capacity is provided through friction damping and superelasticity damping together in a major earthquake, the joint can recover to the original state after the earthquake, and the joint has the advantages of being simple in structure, high in practicality, definite in stress, high in energy dissipation, capable of achieving self-restoration and the like.

Description

Technical field [0001] The invention belongs to the technical field of construction engineering, and relates to a beam-column splicing joint of shape memory alloy composite flange friction, and is particularly suitable for steel frame structures with higher requirements for seismic self-reset performance. Background technique [0002] Steel structure has the advantages of light weight, high strength, good seismic performance, and short construction period. It is widely used in various building structures and is currently one of the most widely used structural forms. my country is a country prone to earthquakes, and has high requirements for the seismic performance of building structures, especially for high-rise and super high-rise buildings. Therefore, research on the seismic performance of steel structure systems has very important social and economic significance. [0003] With the deepening of research on seismic theory and technology of building structures, how to design a st...

Claims

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Application Information

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IPC IPC(8): E04B1/24E04B1/58
CPCE04B1/2403E04B2001/2406E04B2001/2466
Inventor 陈鑫郭彤孙国华李启才
Owner SUZHOU UNIV OF SCI & TECH
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