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首页> 外文会议>International Conference on Current and Future Trends in Bridge Design, Construction and Maintenance 2: Safety, Economy, Sustainability and Aesthetics, Apr 25-26, 2001, Hong Kong >How effective is bridge posting in enhancing reliability?
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How effective is bridge posting in enhancing reliability?

机译：桥梁过帐在增强可靠性方面有多有效？

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摘要

In practice, compliance to bridge load restrictions is imperfect. This paper considers the effect of imperfect load compliance on the member reliability of a 30-m span bridge, using Monte Carlo simulation and sensitivity analysis. Three annual volumes of a governing truck are considered. Results show that under a stringent load restriction, even a small violation rate, in the order of 2.5%, leads to a significant loss of reliability. In other words, if load restrictions are not strictly enforced, the increase in reliability associated with posting a bridge can almost vanish. The loss in reliability is more pronounced for larger annual truck volumes. This study, therefore, questions the effectiveness of load restriction enforcement as a bridge management tool.
机译：实际上，对桥负载限制的遵守是不完善的。本文通过蒙特卡罗模拟和灵敏度分析，考虑了不完全的载荷柔顺性对30米跨度桥梁的构件可靠性的影响。考虑了管理卡车的三个年度体积。结果表明，在严格的负载限制下，即使很小的违规率（约为2.5％）也会导致可靠性显着下降。换句话说，如果不严格执行负载限制，则与张贴网桥相关联的可靠性几乎可以消失。随着卡车年产量的增加，可靠性的损失更加明显。因此，本研究对负载限制实施作为网桥管理工具的有效性提出了质疑。

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