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当前位置: 首页 > 文章 > 桥梁桩基承载能力安全系数研究 山东农业大学学报(自然科学版) 2018 (4) 703-705+709
Position: Home > Articles > Study on the Safety Factors of Load-carrying Capacity of Bridges Pile Foundation Journal of Shandong Agricultural University(Natural Science Edition) 2018 (4) 703-705+709

桥梁桩基承载能力安全系数研究

作  者：
岐峰军;骆佐龙;姚远;檀妹静
关键词：
桥梁工程;桩基;承载能力;安全系数
摘  要：
基于当前研究和应用中的局限,本文结合非线性有限元结果与逆可靠度方法提出可以考虑参数随机性的桥梁桩基承载能力评估分析计算方法。通过非线性有限元获得桩基承载的荷载与抗力从而建立极限状态函数,进而应用本文的逆可靠度数学模型进行求解。结果表明,该方法既能够考虑参数随机性,得到更加客观可靠的结果,又沿用了传统方法的安全系数表达形式易于使用,具有良好的工程应用价值和实用意义。
译  名：
Study on the Safety Factors of Load-carrying Capacity of Bridges Pile Foundation
作  者：
QI Feng-jun;LUO Zuo-long;YAO Yuan;TAN Mei-jing;School of Highway Engineering/Chang'an University;Department of Civil Engineering/Shanxi University;China Architecture Design Group;Beijing Institute of Nearspace Vehicle's Systems Engineering;
单  位：
QI Feng-jun%LUO Zuo-long%YAO Yuan%TAN Mei-jing%School of Highway Engineering/Chang'an University%Department of Civil Engineering/Shanxi University%China Architecture Design Group%Beijing Institute of Nearspace Vehicle's Systems Engineering
关键词：
Bridge engineering;;pile foundation;;load-carrying capacity;;safety factors
摘  要：
Based on the limitations of current researches and applications, this paper presented a method to evaluate the load-carrying capacity of bridge pile foundation considering the randomness of parameters by combining the nonlinear finite element results and inverse reliability method. The load and resistance of pile foundation were obtained by nonlinear finite element method, and the limit state function was established. The inverse reliability mathematical model of this paper was used to solve the problem. The results showed this method can not only consider the parameters randomness and obtain more objective and reliable results, but also use the traditional method to express the safety factor easily, it has good engineering application value and practical significance.

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