A Study on Pseudo-Elastic Aseismic Capacity for Trussed Type Steel Frame
Date Issued
2007
Date
2007
Author(s)
Cheng, Yi-Ru
DOI
zh-TW
Abstract
Abstract
The objective of this paper is to investigate the seismic capacity of the truss type steel frame by adopting Pseudo-elastic approach. In according to the principle of energy conservation to transfer the energy which exceeding the elastic range into plastic energy, the nonlinear response of the structure, and the seismic capacity of the structure can be figured out.
There are several procedures to analysis truss type steel frame of seismic capacity. Firstly, the structure will be analyzed linearly by adopting SAP software, and the member forces are carried out. The lateral force will be enlarged gradually. After the first plastic hinge appeared, the truss type steel frame will perform inelastic. In according to the conservation principle, the energy exceed the elastic strain energy can transferred into the corresponding plastic energy by using Pseudo-elastic method from linear analysis. Finally, the yielding lateral force, ultimate lateral force, ductility, and collapsed ground acceleration can be figured out.
The results of illustrations dealing with the truss type steel frames and equivalence steel rigid frames can be compared with the results from adopting SAP procedure nonlinear static analysis and Pseudo-elastic approach analysis. It can be concluded that the Pseudo-elastic approach can be applied to steel truss frames and rigid frames for seismic capacity analysis with acceptable accuracy.
Subjects
桁架式鋼構架
擬彈性分析
非線性分析
耐震能力評估
能量守恆原則
truss type steel frame
Pseudo-elastic
nonlinear analysis
seismic capacity
energy conservation
SDGs
Type
thesis