套管加强梁腹板开孔梁柱节点滞回性能分析

Hysteretic behavior of reduced beam section connections with stub tube reinforced web opening

针对梁腹板开孔型梁柱节点的不足,提出了套管加强梁腹板开孔的梁柱节点形式.运用ABAQUS有限元软件对这种新型节点的滞回性能进行了参数分析,结果表明该新型节点既能达到塑性铰外移的目的,又能满足节点的抗剪要求,使节点具有足够的承载力和良好的抗震性能.同时该节点也可满足大孔径管道穿通的要求.

To make up for the shortcomings of traditional reduced beam connections with web opening, this paper puts forward a new connection with stub tube reinforced web opening. Parametric study on the hysteretic behavior of this new type connection was conducted by means of ABAQUS FE analysis. It is demonstrated that the new connection can move the beam plastic hinge away from the column flange welding zone and possesses at the same time enough shear resistance as well, and the connection shows ex- cellent seismic performance without losing its bearing capacity henceforth. Meanwhile the connection can allow large diameter equipment pipe to pass through the beam,which is often demanded in frame buildings.