Correlation Analysis of Ground Motion Duration Indexes and Nonlinear Seismic Responses of a Long-span Continuous Rigid-Frame Bridge with High-Rise Piers

doi:10.1080/13632469.2021.1961927

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	Correlation Analysis of Ground Motion Duration Indexes and Nonlinear Seismic Responses of a Long-span Continuous Rigid-Frame Bridge with High-Rise Piers
	Shi, Yan 1; Li, Jun 1; Qin, Hongguo 1; Zhong, Zhengwu 1; Wang, Junwen 2; Zhang, Fenjie 1
刊名	JOURNAL OF EARTHQUAKE ENGINEERING
	2021-08
关键词	Ground motion duration continuous rigid-frame bridge (CRFB) nonlinear seismic response numerical simulation correlation analysis
ISSN号	1363-2469
DOI	10.1080/13632469.2021.1961927
英文摘要	To investigate the correlations of duration indexes and the nonlinear seismic responses of long-span continuous rigid-frame bridges with high-rise piers (CRFB-LH), an irregular CRFB-LH was selected as the prototype bridge. A construction stage analysis model was simulated in MIDAS/Civil, where the actual construction process was considered and the internal force state was extracted. After that, a nonlinear dynamic analysis model of the CRFB-LH with the equivalent internal force state was simulated via OpenSees. A bracketed duration and significant duration with a continuous-time interval were selected as the duration indexes. Sixty ground motion records with total duration values ranging from 9.91 s to 300 s were used in the nonlinear dynamic analysis. The correlation between the two duration indexes and the nonlinear seismic responses of the CRFB-LH under total-duration ground motions were analyzed. Finally, the effect of different duration indexes on the nonlinear seismic responses of the CRFB-LH was discussed under 30 long-duration ground motions intercepted according to D-b0.1g, Ds5-75% and Ds5-95%. The numerical results show that the correlations of D-s with nonlinear seismic responses are better than those of D-b, and the latter heavily depends on the absolute acceleration threshold. Ds5-95% is preferred for calculating the total hysteretic energy dissipated (HED) from the CRFB-LH. Additionally, while the amount of total HED is not determined by the total duration, the effective time interval of the ground motion duration under different duration indexes has a significant influence on the total HED.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000681177000001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148803]
专题	土木工程学院理学院
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Peoples R China; 2.Shijiazhuang Tiedao Univ, Minist Educ, Key Lab Rd & Railway Engn Safety Control, Shijiazhuang, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yan,Li, Jun,Qin, Hongguo,et al. Correlation Analysis of Ground Motion Duration Indexes and Nonlinear Seismic Responses of a Long-span Continuous Rigid-Frame Bridge with High-Rise Piers[J]. JOURNAL OF EARTHQUAKE ENGINEERING,2021.
APA	Shi, Yan,Li, Jun,Qin, Hongguo,Zhong, Zhengwu,Wang, Junwen,&Zhang, Fenjie.(2021).Correlation Analysis of Ground Motion Duration Indexes and Nonlinear Seismic Responses of a Long-span Continuous Rigid-Frame Bridge with High-Rise Piers.JOURNAL OF EARTHQUAKE ENGINEERING.
MLA	Shi, Yan,et al."Correlation Analysis of Ground Motion Duration Indexes and Nonlinear Seismic Responses of a Long-span Continuous Rigid-Frame Bridge with High-Rise Piers".JOURNAL OF EARTHQUAKE ENGINEERING (2021).