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張玉良  汪  洋  張銅生       （清華大學(xué)土木工程系  北京 100084）

[提要]  采用HBTA2.0程序，對(duì)我國(guó)首棟橡膠墊隔震結(jié)構(gòu)進(jìn)行雙向地震波作用下的彈塑性動(dòng)力分析。分析結(jié)果表明，隔震裝置的水平變形和耗能能力可以大大減輕地震對(duì)結(jié)構(gòu)的影響。最后，對(duì)橡膠墊隔震結(jié)構(gòu)的動(dòng)力分析及工程應(yīng)用提出了有益的建議。
[關(guān)鍵詞]  橡膠墊  隔震  彈塑性動(dòng)力分析  HBTA2.0

Elasto-plastic dynamic analysis for the first structure with rubber bearings base-isolation system in China is performed by the program HBTA2 .0. The structure is assumed to be under bidirectional earthquake waves. According to the results, the seismic response of the structure is significantly reduced by the distortion and energy dissipation ability of the base-isolation system. At last, some suggestions are offered on the dynamic analysis and application of structures with rubber bearings base-isolation system.
Keywords: rubber bearings; base-isolation; elasto-plastic dynamic analysis; HBTA2.0