住宅科技
住宅科技
주택과기
HOUSING SCIENCE
2015年
1期
10-12
,共3页
普通层叠橡胶支座%铅芯橡胶支座%基础隔震
普通層疊橡膠支座%鉛芯橡膠支座%基礎隔震
보통층첩상효지좌%연심상효지좌%기출격진
laminated ordinary rubber bearings%lead rubber bearing%base isolation
某框架结构商场设计采用基础隔震，拟选用普通橡胶支座或铅芯橡胶支座，运用SAP2000有限元分析软件对两种隔震方案输入EI-Centro波进行非线性时程分析。结果表明，采用普通层叠橡胶支座的方案结构在前3个振型中增加的自振周期高于铅芯橡胶支座方案，且由地震引起各楼层的加速度略小于铅芯橡胶支座方案；采用铅芯橡胶支座方案各楼层的层间最大位移略小于普通层叠橡胶支座方案。综合考虑隔震效果、造价和施工等因素，该工程选用普通层叠橡胶支座方案更为合适。
某框架結構商場設計採用基礎隔震，擬選用普通橡膠支座或鉛芯橡膠支座，運用SAP2000有限元分析軟件對兩種隔震方案輸入EI-Centro波進行非線性時程分析。結果錶明，採用普通層疊橡膠支座的方案結構在前3箇振型中增加的自振週期高于鉛芯橡膠支座方案，且由地震引起各樓層的加速度略小于鉛芯橡膠支座方案；採用鉛芯橡膠支座方案各樓層的層間最大位移略小于普通層疊橡膠支座方案。綜閤攷慮隔震效果、造價和施工等因素，該工程選用普通層疊橡膠支座方案更為閤適。
모광가결구상장설계채용기출격진，의선용보통상효지좌혹연심상효지좌，운용SAP2000유한원분석연건대량충격진방안수입EI-Centro파진행비선성시정분석。결과표명，채용보통층첩상효지좌적방안결구재전3개진형중증가적자진주기고우연심상효지좌방안，차유지진인기각루층적가속도략소우연심상효지좌방안；채용연심상효지좌방안각루층적층간최대위이략소우보통층첩상효지좌방안。종합고필격진효과、조개화시공등인소，해공정선용보통층첩상효지좌방안경위합괄。
the base isolation of frame structure design of a shopping mall planned to adopt ordinary rubber bearing or lead rubber bearing, and had a non-linear time history analysis on these two solutions for inputting EI-Centro wave by SAP2000 software of ifnite element analysis. The results showed that the structure of laminated ordinary rubber bearings enjoyed higher increased natural vibration period in the front three vibration modes than that of the solution of lead rubber bearing; besides, the accelerated speed caused by earthquake on each floor was slightly less than that of the lead rubber bearing. Therefore, it is more feasible to adopt the laminated ordinary rubber bearings after comprehensively taken seismic isolation effect, costs, construction and other factors into consideration.
