کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10146725 1646411 2019 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic failure of multi-span simply supported RC slab-on-grider bridge in 2008 Wenchuan earthquake: Case study
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Seismic failure of multi-span simply supported RC slab-on-grider bridge in 2008 Wenchuan earthquake: Case study
چکیده انگلیسی
Multi-scale finite element (FE) modeling is an effective method to balance the computational efficiency and accuracy using different elements to simulate different parts of structures considering the demands of engineering practice. In order to analyze the earthquake-induced damage and collapse of Gaoyuan bridge in Wenchuan earthquake, the simplified rigid surface coupling method is developed to achieve the coupling between solid element and beam element based on LS-DYNA program at this study. The numerical results have shown that the failure of A2 abutment and strong pounding force cause the bridge superstructure lost longitudinal constraints, and the girders of the third span and forth span fell down due to oversize longitudinal displacement. Obviously, the multi-scale FE modeling is a high-efficiently analytical method for simulating local damage and even collapse of bridges structures under strong earthquake excitations. The inclined degree of bridge bents and the damage of concrete in different bridge piers using the multi-scale FE modeling method improved in this paper agrees well with actual earthquake damage of Gaoyuan highway bridge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 95, January 2019, Pages 140-153
نویسندگان
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