Affiliation:
1. College of Civil Engineering, Taiyuan University of Technology, Yingzexida Street 79, Taiyuan 030024, P. R. China
2. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Beierhuandong Road 17, Shijiazhuang 050043, P. R. China
Abstract
This paper studies the damage spectra of single-degree-of-freedom (SDOF) systems for tsunami loading. The 2011 Tohoku tsunami wave traces are computed and obtained by adopting the Cornell Multi-grid Coupled Tsunami (COMCOT) model and are further verified by the Tohoku Tsunami Joint Survey (TTJS) data. The tsunami response analyses of SDOF systems are conducted taking into account the dynamic analysis method. The classical ductility damage is considered as the damage performance. The damage spectra are computed for five force reduction factors and 791 tsunami loadings. The effects of inundation depths, hysteretic model, post-yield stiffness ratio, [Formula: see text], viscous damping ratio, [Formula: see text], are explored and interpreted scientifically and statistically. The results demonstrate that the effect of the hysteretic model, force reduction factor, R, post-yield stiffness ratio, [Formula: see text], viscous damping ratio, [Formula: see text], on the damage of the structure is evident. Comparison with the static method and influence analysis of structural damping indicate the necessity for the application of the dynamic method. A simplified predictive formulation is developed for the evaluation of structural damage for tsunami loadings.
Funder
National Natural Science Foundation of China
S&T Program of Hebei
Shanxi Province Science Foundation
Research Project Supported by Shanxi Scholarship Council of China
China Postdoctoral Science Foundation
Publisher
World Scientific Pub Co Pte Ltd
Subject
Geophysics,Geotechnical Engineering and Engineering Geology,Oceanography