Affiliation:
1. School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou, China
2. Zhengzhou Railway Technician College, Zhengzhou, China
3. Henan Puze Expressway Co. Ltd., Puyang, China
Abstract
As a common water conveyance structure, aqueduct is widely used in cross-regional water conveyance and diversion projects. However, large double-trough aqueduct structures are prone to damage under earthquake, resulting in water leakage and even interruption, endangering the safety of people’s lives and property in surrounding areas. In this paper, the nonlinear reinforced-concrete material program is compiled based on the FORTRAN language. Taking the Shuangji River aqueduct project as an example, the numerical model of the fiber beam element of the double-trough aqueduct structure is established, and the nonlinear dynamic time-history response analysis of different ground motion inputs is carried out. Based on the midspan displacement and acceleration time history, pier bottom bending moment and shear force time history, the nonlinear response law of large aqueduct structure is studied. A criterion for determining the overall collapse of aqueduct structure based on effective energy is proposed. The correctness and feasibility of the nonlinear numerical model of the aqueduct structure and the dynamic catastrophe analysis method are verified by focusing on the overall seismic response of the aqueduct structure and the material yield status of key parts, and comparing with the collapse criterion based on the limit value of pier top displacement angle. The conclusions will provide a basis for seismic analysis, optimization design, and operation and maintenance safety assessment of large aqueduct structures and have important theoretical significance and engineering application value.
Funder
National Natural Science Foundation of China
Subject
Civil and Structural Engineering
Reference27 articles.
1. Experimental Study on Structure Water Support Interaction of Large Aqueduct
2. Design Optimization of Concrete Aqueduct Structure considering Temperature Effects
3. Analysis of vertical seismic effect of large aqueduct;Y. Li;Earthquake Engineering and Engineering Vibration,2008
4. Simulation analysis of quasi-dynamic test of aqueduct;Z. Li;Journal of Vibration Engineering,2013
5. Seismic response analysis of truss-aqueduct-water three-dimensional coupling system;Y. Wu;Journal of Hydraulic Engineering,2005
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献