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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.16 No.4
- 발행연도
- 2015.1
- 수록면
- 503 - 529 (27page)
이용수
초록· 키워드
오류제보하기
Traditionally, multi-story buildings are designed to provide stiffer structural support to withstand lateral earthquake loading. Introducing flexible elements at the base of a structure and providing sufficient damping is an alternative way to mitigate seismic hazards. These features can be achieved with a device known as an isolator. This paper covers the design of base isolators for multi-story buildings in medium-risk seismicity regions and evaluates the structural responses of such isolators. The well-known tower building for police personnel built in Dhaka, Bangladesh by the Public Works Department (PWD) has been used as a case study to justify the viability of incorporating base isolators. The objective of this research was to establish a simplified model of the building that can be effectively used for dynamic analysis, to evaluate the structural status, and to suggest an alternative option to handle the lateral seismic load. A finite element model was incorporated to understand the structural responses. Rubber-steel bearing (RSB) isolators such as Lead rubber bearing (LRB) and high damping rubber bearing (HDRB) were used in the model to insert an isolator link element in the structural base. The nonlinearities of rubber-steel bearings were considered in detail. Linear static, linear dynamic, and nonlinear dynamic analyses were performed for both fixed-based (FB) and base isolated (BI) buildings considering the earthquake accelerograms, histories, and response spectra of the geological sites. Both the time-domain and frequency-domain approaches were used for dynamic solutions. The results indicated that for existing multi-story buildings, RSB diminishes the muscular amount of structural response compared to conventional non-isolated structures. The device also allows for higher horizontal displacement and greater structural flexibility. The suggested isolation technique is able to mitigate the structural hazard under even strong earthquake vulnerability.
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참고문헌 (35)
참고문헌 신청
Ahmad, S. / 2009 / Seismic friction base isolation performance using demolished waste in masonry housing / Constr. Build. Mater. 23(1):146~152
Anzani, A. / 2010 / A multilevel approach for the damage assessment of Historic masonry towers / J. Cultur. Heritage 11(4):459~470
Ariga, T. / 2006 / Resonant behaviour of base-isolated high-rise buildings under long-period ground motions / Struct. Des. Tall Spec. Build 15(3):325~338
Sevket Ates / 2012 / Investigation of effectiveness of double concave friction pendulum bearings / Computers and Concrete, An International Journal 9(3):195~213
Sevket Ates / 2011 / Site-response effects on RC buildings isolated by triple concave friction pendulum bearings / Computers and Concrete, An International Journal 8(6):693~715
Anzani, A. / 2010 / A multilevel approach for the damage assessment of Historic masonry towers / J. Cultur. Heritage 11(4):459~470
Ariga, T. / 2006 / Resonant behaviour of base-isolated high-rise buildings under long-period ground motions / Struct. Des. Tall Spec. Build 15(3):325~338
Sevket Ates / 2012 / Investigation of effectiveness of double concave friction pendulum bearings / Computers and Concrete, An International Journal 9(3):195~213
Sevket Ates / 2011 / Site-response effects on RC buildings isolated by triple concave friction pendulum bearings / Computers and Concrete, An International Journal 8(6):693~715
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