کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4919756 1429076 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic performance assessment of a curved bridge equipped with a new type spring restrainer
ترجمه فارسی عنوان
ارزیابی عملکرد لرزه ای یک پل منحنی مجهز به یک نوع نگهدارنده بهار نوع جدید
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Severe damages of curved bridge, such as pounding, unseating of superstructure and pier collapse, have been frequently observed in previous strong earthquakes. This paper demonstrates the effectiveness of a new type multi-level spring restrainer (MLSR) on reducing the seismic responses of a curved bridge. The optimal parametric values of the device are determined by response surface method (RSM). The numerical models of the curved bridge with and without MLSR are established using OpenSees. Three earthquake records are selected from PEER strong motion database matching the site condition of the bridge. Nonlinear time history analyses are performed for the bridge with and without MLSR. The force-deformation behavior of the bridge components, the relative displacements between adjacent girders, and the maximum pier curvature are evaluated. The numerical results show that the application of MLSR on the curved bridge will not only avoid the pounding and unseating of the superstructure, but also mitigate the pier damages of the bridge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 151, 15 November 2017, Pages 105-114
نویسندگان
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