湖南大学学报（自然科学版）Issue(9)：110-115,6.
考虑失效准则和沉降控制条件的基桩可靠度分析∗
Reliability Analysis of Foundation Piles Considering Different Failure Criteria and Settlement Control Requirements
摘要
Abstract
The effect of different failure criteria and settlement control requirements on the reliability a-nalysis of foundation piles was studied.The bias factor defined with respect to the s-lgt failure criterion was introduced to each of the seven failure criteria collected.The synthetic reliability analysis method with consideration of different failure criteria,model uncertainties and settlement control requirements was presented by using model factors for ultimate limit state (ULS)and serviceability limit state (SLS).Final-ly,the impact of the randomness of limiting tolerable settlement of pile head on reliability analysis was studied.The following conclusions are drawn.First,variation of settlement control requirements has a great influence on reliability index while does not create a change of the ranking of reliability levels based on seven failure criteria.Second,reliability index increases with the limiting tolerable settlement although the increase rate gradually diminishes,which is independent of failure criterion.Third,there is a close cor-relation between the evaluation principles of foundation pile reliability for ULS and SLS.Therefore,this study recommends the combination of failure criteria and settlement control requirements for the compre-hensive assessment of foundation pile reliability.关键词
桩/可靠度/失效准则/沉降控制条件/偏差系数/模型因子Key words
pile/reliability/failure criterion/settlement control requirement/bias factor/model factor分类
建筑与水利引用本文复制引用
边晓亚,郑俊杰,徐志军,章荣军..考虑失效准则和沉降控制条件的基桩可靠度分析∗[J].湖南大学学报（自然科学版）,2015,(9):110-115,6.基金项目
国家自然科学基金资助项目(51278216,51478201),National Natural Science Foundation of China(51278216,51478201) （51278216,51478201）
湖北省自然科学基金资助项目(2013CFB180) （2013CFB180）
河南工业大学高层次人才基金资助项目(2013BS010) （2013BS010）
