Outward extending end plate joint

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...

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

Images