使用非線性黏性阻尼器之彈性結構受近斷層地震作用之分析與設計研究

曾惠瑜

doi:10.6342/NTU.2014.00999

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使用非線性黏性阻尼器之彈性結構受近斷層地震作用之分析與設計研究

Design of Nonlinear Viscous Dampers for Elastic Buildings Subjected to Near-Fault Ground Motion

曾惠瑜 , Masters　　Advisor：黃尹男　　

繁體中文 DOI： 10.6342/NTU.2014.00999

非線性阻尼器；近斷層地震；等效線性； nonlinear viscous damper ； near-fault ground motion ； linear equivalent damping ； response-history analyses ； response reduction factor

Abstract │ Reference (27) │ Times Cited (2) │ Altmetrics

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ASCE7-10 provides a reduction factor B for engineers to determine the seismic demands of buildings equipped with energy dissipation systems, such as viscous dampers. However, ASCE7-10 does not suggest the use of the factor B on buildings located at soft soil sites and those subjected to ground motions with near-fault characteristics. For buildings subjected to near-fault ground shaking, reduction factors for spectral acceleration ( ) and displacement ( ) are developed in this study to improve the accuracy of the design procedures of ASCE 7-10.
	In this study, a series of nonlinear response-history analyses (RHA) are conducted for sample 5-, 15- and 34-story buildings equipped with nonlinear viscous dampers. The results of RHA are used to benchmark those computed using the two design procedures provided in ASCE 7-10, namely, Response Spectrum Procedure (RSA) and Equivalent Lateral Force Procedure (ELF). The pros and cons of RSA, ELF, and the B values provided in ASCE 7-10 are discussed. A new method is proposed in this study using multiple single degree-of-freedom linear RHA to capture the responses of buildings with nonlinear viscous dampers and subjected to near-fault ground motions. The new method provides more accurate results than the RSA and ELF of ASCE 7-10, especially in the prediction of peak floor acceleration.

Reference ( 27 ) 〈TOP〉

Wen-Hsiung Lin and Anil K. Chopra (2002). “Earthquake response of elastic SDF systems with non-linear fluid viscous dampers.” Earthquake Engineering and Structural Dynamic, 31(9), 1623-1642.
連結：
Gokhan Pekcan, John B. Mander and Stuarts. Chen (1999). “Fundamental considerations for the design of non-linear viscous dampers.” Earthquake Engineering and Structural Dynamic, 28(11), 1405-1425.
連結：
Federal Emergency Management Agency (FEMA). (2003). “NEHRP guidelines for the seismic rehabilitation of buildings.” Rep. No.450, Building Seismic Safety Concil, Washington, D.C.
連結：
Wen-Hsiung Lin and Anil K. Chopra (2003). “Asymmetric one-storey elastic systems with non-linear viscous and viscoelastic dampers: Earthquake response.” Earthquake Engineering and Structural Dynamic, 32(4), 555-577.
連結：
R (2003). “Asymmetric one-storey elastic systems with non-linear viscous and viscoelastic dampers: Earthquake response.” Earthquake Engineering and Structural Dynamic, 32(4), 555-577.
連結：

Times Cited (2) 〈TOP〉

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