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 Phân tích ứng xử địa chấn và kiểm soát hư hại kết cấu trụ cầu bê tông cốt thép sử dụng phương pháp phân tích tĩnh và động phi tuyến
Tác giả hoặc Nhóm tác giả: Hoang Nam Phan, Ngoc Khoa Vo, Hoang Vinh Nguyen, Hoa Phuong Hoang
Nơi đăng: The University of Danang - Journal of Science and Technology; Số: 19(9);Từ->đến trang: 37-42;Năm: 2021
Lĩnh vực: Chưa xác định; Loại: Bài báo khoa học; Thể loại: Trong nước
TÓM TẮT
Significant damage to reinforced concrete (RC) bridges was observed from past major earthquakes, especially in the pier, abutment, and bearing components. Many methods of the seismic response analysis for structures have been established and the static pushover analysis method together with the time history dynamic analysis method are the most commonly used. On the basis of these two methods, this paper presents the modeling approach of RC bridges subjected to earthquakes and investigates the seismic response of the pier. A simply supported prestressed RC bridge, named Cai Cung bridge, in Bac Lieu is selected as a case study. The three-dimensional finite element model of the case study subjected to earthquakes is first established. Nonlinear static pushover and time history dynamic analyses are then performed. Based on the analysis results, the seismic response and damage of the pier are observed and evaluated in detail.
ABSTRACT
Significant damage to reinforced concrete (RC) bridges was observed from past major earthquakes, especially in the pier, abutment, and bearing components. Many methods of the seismic response analysis for structures have been established and the static pushover analysis method together with the time history dynamic analysis method are the most commonly used. On the basis of these two methods, this paper presents the modeling approach of RC bridges subjected to earthquakes and investigates the seismic response of the pier. A simply supported prestressed RC bridge, named Cai Cung bridge, in Bac Lieu is selected as a case study. The three-dimensional finite element model of the case study subjected to earthquakes is first established. Nonlinear static pushover and time history dynamic analyses are then performed. Based on the analysis results, the seismic response and damage of the pier are observed and evaluated in detail.
[ 2021\2021m011d026_10_22_167579-Article_Text-7688-1-10-20211012.pdf ]
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