Rational simplified model of finite element analysis for deck pavement of long-span steel bridge

DENG Qiang-min; NI Fu-jian; GU Xing-yu; CHEN Rong-sheng

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DENG Qiang-min, NI Fu-jian, GU Xing-yu, CHEN Rong-sheng. Rational simplified model of finite element analysis for deck pavement of long-span steel bridge[J]. Journal of Traffic and Transportation Engineering, 2008, 8(2): 53-58.

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DENG Qiang-min, NI Fu-jian, GU Xing-yu, CHEN Rong-sheng. Rational simplified model of finite element analysis for deck pavement of long-span steel bridge[J]. Journal of Traffic and Transportation Engineering, 2008, 8(2): 53-58.

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Rational simplified model of finite element analysis for deck pavement of long-span steel bridge

School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China

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Author Bio:
Deng Qiang-min(1979-), male, doctoral student, +86-25-83791019, lookerfu@163.com

Ni Fu-jian(1968-), male, PhD, professor, +86-25-83794931, nifujian@jsmail.com.cn
Received Date: 2007-08-14
Publish Date: 2008-04-25

Abstract

Abstract

In order to improve the computation precision of simplified model for finite element analysis of deck pavement of long-span steel bridge, the size and boundary conditions of the model were optimized by using sub-model technology and comprehensive evaluation method, the parameters sensitivity of the model was analyzed, the reasonable dimension and constraints of a simplified finite element model were put forward, which had 3 longitudinal spans with free borders, 8 U-shape ribs in transverseness with simple supported borders, and 1.2 m-high diaphragms with fixed bottoms.Comparison result shows that simplified finite element model has high precision, the error of transverse tensile strain is only 0.7%, and the error of longitudinal tensile strain is 3.7%.
- road engineering,
- deck pavement,
- 3-D finite element,
- model optimization,
- sensitivity analysis,
- sub-model technology

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References(14)

References

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