Outward extending end plate joint

An end plate and node technology, applied in the field of outrigger end plate nodes, can solve the problems of insufficient consideration of regional ductility, deformation capacity and safety reserve, lack of secondary protection ability, inconsistent seismic design principles, etc., to ensure safety. and integrity, increased ductility, high production quality

Pending Publication Date: 2017-08-22
CHONGQING UNIV
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AI Technical Summary

Problems solved by technology

However, insufficient consideration is given to the ductility, deformation capacity and safety reserve of the joint area under the action of earthquakes and fires, and there are hidden dangers of building damage and collapse caused by joint fracture damage under the action of a large earthquake, which is inconsistent with the seismic design principle of "do not collapse after a large earthquake". No secondary defense capability

Method used

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  • Outward extending end plate joint

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Embodiment Construction

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] As shown in the figure, the extended end plate node in the present invention includes steel beam 1, steel column 2, angle steel, end plate 4 and bolt 5, the steel beam 1 is an I-shaped steel beam, and the steel column 2 is an H-shaped steel column, the end plate 4 is welded on the end of the steel beam 1, the end plate 4 is an extended end plate, the angle steel includes an L-shaped angle steel 3 and a top and bottom angle steel 7, and the L-shaped angle steel 3. The top and bottom angle steels 7 and the bolts 5 are made of stainless steel; the steel beam 1 web and flange, the end plate 4, the steel column 2 flange and the angle steel are correspondingly provided with bolt holes 6 for passing through the bolts. The L-shaped angle steel 3 is arranged between the web plate of the steel beam 1 and the end plate 4, and the L-shaped angle...

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PUM

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Abstract

The invention discloses an outward extending end plate joint and belongs to the field of structural engineering steel structures. In the outward extending end plate joint, welding is adopted between a steel beam and an end plate, secondary connection through a stainless steel L-shaped steel angle, top-bottom steel angles and stainless steel bolts is also adopted between the steel beam and the end plate, and the steel beam and a steel column are correspondingly connected through stainless steel bolts, the welding end plate and the two stainless steel angles. Through the connecting mode, the steel plate connecting position cracking phenomenon occurring to a traditional joint due to the influences of welding joint residual stress and a heat affected zone under the high temperature effect is avoided; ductility and robustness of a steel connecting area are improved, so that under the fire effect, the joint end plate has the enough ductile transition stress mechanism to form a secondary protective capacity even if being destroyed; and the connecting joint can further be used in anti-seismic areas, and by adoption of good ductility, the good deformation capacity and the good secondary protective mechanism of the stainless steel angles, excess energy is dissipated under the effect of a seismic load or a reciprocal load, and structural safety and integrity are guaranteed.

Description

technical field [0001] The invention belongs to the field of structural engineering steel structures, and in particular relates to an overhanging end plate node. Background technique [0002] With the construction of a large number of multi-high-rise and super high-rise buildings, the application of steel structures is increasing. In structural design, beam-column joints are often fully welded or flange welded-web bolted, and the strength and stiffness of the joint area are relatively high. However, insufficient consideration is given to the ductility, deformation capacity and safety reserve of the joint area under the action of earthquakes and fires, and there are hidden dangers of building damage and collapse caused by joint fracture damage under the action of a large earthquake, which is inconsistent with the seismic design principle of "do not collapse after a large earthquake". There is no secondary protection capability. How to improve the ductility, deformation capa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/24E04B1/58
CPCE04B1/2403E04B2001/2418
Inventor 胡鹰徐谭楚民张川崔佳
Owner CHONGQING UNIV
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