Parametric Analysis of Seismic Performance for Bridge Bents with Buckling-restrained Braces (BRBs)

doi:10.15961/j.jsuese.201800592

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	Parametric Analysis of Seismic Performance for Bridge Bents with Buckling-restrained Braces (BRBs)
	Shi, Yan 1,2; Zhang, Zhanhong 2; Han, Jianping 2; Xu, Jixiang 2
刊名	Gongcheng Kexue Yu Jishu/Advanced Engineering Science
	2018-11-20
卷号	50 期号:6 页码:71-76 and 90
关键词	Buckling Earthquakes Piers Seismic waves Stiffness Bridge engineering Buckling restrained braces Elastoplastic behavior Laminated rubber bearings Near fault ground motion Nonlinear response history analysis Parametric -analysis Velocity pulse
ISSN号	20963246
DOI	10.15961/j.jsuese.201800592
英文摘要	During Wenchuan earthquake, some bridge bents with double piers suffered severe damage and much attention has been paid to the seismic performance of bridge bents. Based on the structural fuse concept, the bridge bents by using buckling-restrained brace (BRB) was proposed to control its damage in transverse direction. An analytical model of single bridge bents considering the elasto-plastic behaviors of piers, the pounding response between shear keys and girders and the sliding friction behavior of laminated rubber bearing was developed. Nonlinear response history analyses were conducted with far-fault and near-fault ground motion records including velocity pulse of forward rupture directivity effect and fling-step effect. Many parameters such as the ratio of horizontal stiffness between BRBs and bents, the ratio of horizontal yielding displacement between BRBs and bents, the arrangement form of BRBs, the bent with unequal-high piers, and the intensity of ground motion were analyzed. Results indicated that the damage of regular and irregular bridge bents can be effectively controlled by using BRBs, and the rational sampling ranges of the horizontal stiffness ratio and horizontal yielding displacement ratio between BRBs and bents are found to be 0.5~2.0 and 0.5~1.5, respectively. © 2018, Editorial Department of Advanced Engineering Sciences. All right reserved.
语种	中文
出版者	Editorial Department of Journal of Sichuan University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114512]
专题	土木工程学院
作者单位	1.Key Lab. for Health Monitoring and Control of Large Structures, Shijiazhuang; 050043, China 2.School of Civil Eng., Lanzhou Univ. of Technol., Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Shi, Yan,Zhang, Zhanhong,Han, Jianping,et al. Parametric Analysis of Seismic Performance for Bridge Bents with Buckling-restrained Braces (BRBs)[J]. Gongcheng Kexue Yu Jishu/Advanced Engineering Science,2018,50(6):71-76 and 90.
APA	Shi, Yan,Zhang, Zhanhong,Han, Jianping,&Xu, Jixiang.(2018).Parametric Analysis of Seismic Performance for Bridge Bents with Buckling-restrained Braces (BRBs).Gongcheng Kexue Yu Jishu/Advanced Engineering Science,50(6),71-76 and 90.
MLA	Shi, Yan,et al."Parametric Analysis of Seismic Performance for Bridge Bents with Buckling-restrained Braces (BRBs)".Gongcheng Kexue Yu Jishu/Advanced Engineering Science 50.6(2018):71-76 and 90.