Ground Motion and Site Effects on Performance-Based Design  

作　　者：Antonio Ferraro Salvatore Grasso Michele Maugeri 

机构地区：[1]Department of Civil and Environmental Engineering, University of Catania, Italy

出　　处：《Journal of Civil Engineering and Architecture》2010年第7期34-41,共8页土木工程与建筑（英文版）

摘　　要：The objective of Performance-Based Earthquake Engineering （PBEE） is the analysis of performance objectives with a specified annual probability of exceedance. Increasingly undesirable performance is caused by increasing levels of strong ground motion having decreasing annual probabilities of exceedance. The development of this methodology includes three steps： （1） evaluation of the distribution of ground motion at a site; （2） evaluation of the distribution of system response; （3） evaluation of the probability of exceeding decision variables within a given time period, given appropriate damage measures. The work has taken a systematic approach to determine the impact of increasing levels of detail in site characterization on the accuracy of ground motion and site effects predictions. Complementary studies have investigated the use of the following models for evaluating site effects： （1） amplification factors defined on the basis of generalized site categories, （2） one-dimensional ground response analysis, and （3） two-dimensional ground response analysis for surface topography on ground motion. The paper provides a brief synthesis of ground motion and site effects analysis procedures within a Performance-Based Design framework. It focuses about the influence on the evaluation of site effects in some active regions by different shear waves velocity measurements Down Hole （D-H）, Cross Hole （C-H）, Seismic Dilatometer Marchetti Test （SDMT） and by different variation of shear modulus and damping ratio with strain level and depth from different laboratory dynamic tests for soil characterization： Resonant Column Test （RCT）, Cyclic Loading Torsional Shear Test （CLTST）.

关 键 词：Site effects Performance Based Design （PBD） ground motion soil non-linearity seismic response analysis 

分 类 号：TU244[建筑科学—建筑设计及理论] P315.9[天文地球—地震学]