Simulation Analysis of Running Safety on Long Span Cable-stayed Bridge Based on Parallel Computation

DU Xin-guang;JIN Xian-long;;CHEN Xiang-dong

Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (7) : 5-8.

PDF(1394 KB)
PDF(1394 KB)
Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (7) : 5-8.
论文

Simulation Analysis of Running Safety on Long Span Cable-stayed Bridge Based on Parallel Computation

  • DU Xin-guang1; JIN Xian-long1,2 ;CHEN Xiang-dong1
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Abstract

Based on the Finite Element Analysis Method, the running safety of light rail train on long span double deck cable- stayed bridge is evaluated. The total element and nodes amount of the refined 3D couple vibration finite element model, which the bridge is made up of main truss, cable, tower, piers, cap, piles, and soil and the light rail vehicles include the car body, bogie, wheel-set, and spring-damp system, is over 2.2 million. The model is solved on Dawning 4000A supercomputer of Shanghai Supercomputer Center based on the Contact Balance Bisection (CBB) algorithm for parallel computing and the vertical and transverse wheel-rail interaction force are obtained. According to the derailment coefficient and the wheel load reduction rate under maximum velocity, the running safety of light rail train is analyzed, which provides the reference for the safety design of long span cable-stayed bridge.

Key words

Long span cable-stayed bridge / Running safety / Parallel computing / Simulation analysis

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DU Xin-guang;JIN Xian-long;;CHEN Xiang-dong. Simulation Analysis of Running Safety on Long Span Cable-stayed Bridge Based on Parallel Computation[J]. Journal of Vibration and Shock, 2010, 29(7): 5-8
PDF(1394 KB)

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