Inelastic Earthquake-Resistant Design of Bridges—Application to Concrete Cable-Stayed Bridgesby Hirokazu Iemura, Kyoto Univ, Japan,
Yoshikazu Yamada, Kyoto Univ, Japan,
Abstract: Various methods of earthquake-resistant design of bridges use in both the U.S. and Japan are summarized and reviewed. Among them, principles of approximate and rigorous inelastic earthquake design methods are compared. Problems arising from the use of approximate methods are pointed out and rigorous inelastic response analysis is recommended. Using inelastic response analysis of concrete towers of cable-stayed bridges as examples, a stress-strain based method is proposed, which can take into account of effects of variation of axial force to inelastic flexure response.
Subject Headings: Concrete bridges | Bridge design | Cable stayed bridges | Cables | Inelasticity | Seismic design | Bridge towers | Load and resistance factor design | Earthquake resistant structures | Japan | Asia
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