Study on Inelastic Displacement Ratio Spectra for Near-fault Pulse-type Ground Motions
In displacement-based seismic design, inelastic displacement ratio spectra (IDRS) are particularly useful for estimating the maximum lateral inelastic displacement demand of a nonlinear SDOF system from the maximum elastic displacement demand of its counterpart linear elastic SDOF system. This study investigates the characteristics of IDRS for near-fault pulse-type ground motions based on a great number of earthquake ground motions. The influence of site conditions, ratio of peak ground velocity (PGV) to peak ground acceleration (PGA), the PGV, and the maximum incremental velocity on IDRS are also evaluated. Results indicate that the effect of near-fault ground motions on IDRS are significant only at periods between 0.2-1.5s, where the amplification can approach 20%. The PGV/PGA ratio has the most significant influence on IDRS among the parameters considered. It is also found that site conditions only slightly affect the IDRS.
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/16713664
-
Authors:
- Changhai, Zhai
- Shuang, Li
- Lili, Xie
- Yamin, Sun
- Publication Date: 2007-12
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 351-355
-
Serial:
- Earthquake Engineering and Engineering Vibration
- Volume: 6
- Issue Number: 4
- Publisher: Springer
- ISSN: 1671-3664
- EISSN: 1993-503X
- Serial URL: http://link.springer.com/journal/11803
Subject/Index Terms
- TRT Terms: Degrees of freedom; Dynamic structural analysis; Earthquake engineering; Earthquake resistant design; Inelastic stress; Pulses; Seismicity
- Uncontrolled Terms: Displacement (Engineering)
- Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics;
Filing Info
- Accession Number: 01099401
- Record Type: Publication
- Files: TRIS
- Created Date: May 21 2008 7:06AM