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Số người truy cập: 106,959,770

 Seismic response and damage evaluation for anchored and unanchored cylindrical above ground steel tanks
Tác giả hoặc Nhóm tác giả: Phan Hoang Nam, Nguyen Hoang Vinh, Hoang Phuong Hoa
Nơi đăng: The University of Danang - Journal of Science and Technology; Số: 20(12.1);Từ->đến trang: 30-35;Năm: 2022
Lĩnh vực: Chưa xác định; Loại: Bài báo khoa học; Thể loại: Trong nước
TÓM TẮT
This paper aims to first present a review of studies on numerical modeling and seismic response analysis of above ground steel liquid storage tanks. On that basis, a procedure for estimating dynamic parameters associated with simplified models for anchored and unanchored conditions together with calculation methods of seismic responses and damage states of tanks are presented. In which, the nonlinear behavior of the bottom plate in the case of unanchored conditions caused by sliding and uplift phenomena is properly modeled based on the nonlinear static pushover analysis on a 3D finite element model. Finally, an example of the numerical modeling and seismic response analysis of a water tank is presented. The seismic responses and damage of both anchored and unanchored conditions are compared and evaluated in detail.
ABSTRACT
This paper aims to first present a review of studies on numerical modeling and seismic response analysis of above ground steel liquid storage tanks. On that basis, a procedure for estimating dynamic parameters associated with simplified models for anchored and unanchored conditions together with calculation methods of seismic responses and damage states of tanks are presented. In which, the nonlinear behavior of the bottom plate in the case of unanchored conditions caused by sliding and uplift phenomena is properly modeled based on the nonlinear static pushover analysis on a 3D finite element model. Finally, an example of the numerical modeling and seismic response analysis of a water tank is presented. The seismic responses and damage of both anchored and unanchored conditions are compared and evaluated in detail.
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