Dynamic Elasto-Plastic Analysis on the Steel Spatial Arch Truss with 120 m Span and 0.4 Rise-Span Ratio
In this paper, the elasto-plastic dynamic analysis on the steel spatial arch truss with 120 m span and 0.4 rise-span ratio is carried out under earthquake ELCentro wave with SAP2000 about pin-connected model and rigid truss model. The geometric and material nonlinear effects are considered simultaneously based on the plastic-hinge theory. The study shows that the vertical stiffness of the two models is smaller than horizontal stiffness; the failure mode of the pinconnected truss model under the earthquake action is elasto-plastic dynamic buckling, and the failure mode of the rigid truss model under the earthquake action is between the elasto-plastic dynamic buckling and the strength failure, In order to improve the ductility of the truss, we should enhance the design of joint stiffness in actual structures.
Earthquake action Elasto-plastic dynamic response Plastic hinge Steel arch truss
Haiwang Li Yu Ma Jing Liu
Department of Civil Engineering Taiyuan University of Technology 79 Yingzexi Street Taiyuan 030024 China
国际会议
上海
英文
862-866
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）