Expansion of a static analysis-based out-of-plane maximum inelastic seismic response estimation method for steel arch bridges to in-plane response estimation

• Published in: Engineering structures 2009-09, Vol.31 (9), p.2209-2212
• Main Authors: Cetinkaya, Osman Tunc, Nakamura, Shozo, Takahashi, Kazuo
• Format: Article
• Language: English
• Subjects: Applied sciences; Bridges; Buildings. Public works; Composite bridges; Dynamic response analysis; Equal energy assumption; Exact sciences and technology; Geotechnics; Seismic design; Steel arch bridges; Stresses. Safety; Structural analysis. Stresses; Structure-soil interaction
• ISSN: 0141-0296; 1873-7323
• DOI: 10.1016/j.engstruct.2009.02.045

We have previously proposed a static analysis-based method for estimating the maximum out-of-plane inelastic seismic response of upper-deck steel arch bridges. The method is developed on the basis of the numerical examinations of 6 upper-deck steel arch bridge models. It employs free vibration analysis, response spectrum method and equal energy assumption for the estimation of maximum out-of-plane response. Correction functions are proposed to modify the estimates by the equal energy assumption. In the current study, applicability of the same procedure to the estimation of maximum in-plane response is discussed. It is found that the method can be used also for the maximum in-plane response estimation by only modifying the pushover analysis procedure. The validity of the method is demonstrated for the same parametric models through further numerical evaluations.