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

[提要] 對(duì)應(yīng)桿系－層動(dòng)力分析模型，推導(dǎo)了速度相關(guān)型阻尼器的單元?jiǎng)偠染仃嚭蛦卧枘峋仃?，并在HBTA程序中實(shí)現(xiàn)對(duì)設(shè)置速度相關(guān)型阻尼器減震結(jié)構(gòu)的非線性時(shí)程分析，對(duì)一個(gè)設(shè)置線性粘滯阻尼器的鋼框架模型，用HBTA對(duì)其進(jìn)行地震反應(yīng)時(shí)程分析，并與SAP2000軟件的計(jì)算結(jié)果進(jìn)行對(duì)比。最后，用HBTA計(jì)算一個(gè)設(shè)置粘彈性阻尼器的鋼筋混凝土結(jié)構(gòu)在罕遇地震影響下的非線性時(shí)程反應(yīng)，并比較了粘彈性阻尼器的不同計(jì)算模型對(duì)減震效果的影響。
[關(guān)鍵詞] 速度相關(guān)型阻尼器  減震結(jié)構(gòu)  時(shí)程分析  非線性

The element stiffness matrix and element damping matrix of velocity-depended damper in member-story model are presented. On the basis of program HBTA,an updated version of HBTA is programmed which can make nonlinear analysis for seismlc mitigation structure with velocity-depended dampers. The seismlc response of a steel frame moclel is analyzed by HBTA,and the results are compared with those from SAP2000. Time-history analysis for a reinforced concrete structure under intensive earthquake excitation is performed, and different effects of different analytical models for viscoelastic damper are compared.
Keywords: velocity-depencled damper; seismic mitigation; time-history analysis; nonlinear behavior

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