Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33079
Title: Pushover analysis by one element per member for performance-based seismic design
Authors: Liu, SW
Liu, YP
Chan, SL 
Keywords: Performance-based
Plastic hinge
Pushover analysis
Second-order analysis
Issue Date: 2010
Publisher: World Scientific
Source: International journal of structural stability and dynamics, 2010, v. 10, no. 1, p. 111-126 How to cite?
Journal: International journal of structural stability and dynamics 
Abstract: Nonlinear static (pushover) analysis is an effective and simple tool for evaluating the seismic response of structures and offers an attractive choice for the performance-based design. As such, it has generally been used in modern design due to its practicality. However, the nonlinear plastic design method consumes extensive computational effort for practical structures under numerous load cases. Thus, an efficient element capturing the nonlinear behavior of a beam-column will be useful. In this paper, the authors propose a practical pushover analysis procedure using a single element per member for seismic design. As an improvement to previous research works, both P and P δ effects as well as initial imperfections in global and member levels are considered. Therefore, the section capacity check without the assumption of effective length is adequate for present design and the conventional individual element design is avoided. The uncertainty of the buckling effects and effective length method can be eliminated and so a more economical design can be achieved. Two benchmark steel frames of three-storey and nine-storey in FEMA 440 were analyzed to illustrate the validity of the proposed method.
URI: http://hdl.handle.net/10397/33079
ISSN: 0219-4554
EISSN: 1793-6764
DOI: 10.1142/S0219455410003385
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