NDLI: Rocking Isolation of Tall Pier with Pile Foundations Based on Double-Spring Model

Content Provider	IEEE Xplore Digital Library
Author	Chen Xing-Chong Xia Xiu-Shen Liu Zun-Wen Zhang Yong-Liang
Copyright Year	2015
Description	Author affiliation: Sch. of Civil Eng., Lanzhou Jiaotong Univ., Lanzhou, China (Chen Xing-Chong; Xia Xiu-Shen; Liu Zun-Wen; Zhang Yong-Liang)
Abstract	A double-spring model for rocking isolation of tall piers with pile foundations, restoring force curve and the spring stiffness are proposed. Rocking isolation for bridges with tall piers are analyzed by using nonlinear time-history method, and the results are compared with those obtained by using concentrated rotational springs which are more simplified. The results show that the vibration period is not fixed after rocking and uplift of the pier, the anti-overturning moment is very close to the peak moment at the bottom of piers with the effect of rocking isolation is stable, and less affected by input ground motions. Displacement-time curve of the top of the pier and the moment at the pier bottom, obtained by using double-spring model is close to those obtained by using concentrated rotational-springs model, which are more simplified.
Sponsorship	Hunan Inst. Ind.
Starting Page	959
Ending Page	963
File Size	1145963
Page Count	5
File Format	PDF
e-ISBN	9781467371438
DOI	10.1109/ICMTMA.2015.234
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridges Vibrations pile foundation rocking isolation Analytical models tall pier Earthquakes double-spring model Rocks Seismic waves Springs
Content Type	Text
Resource Type	Article

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