南京江北地区PHC桩竖向承载力可靠度分析

›› 2008, Vol. 29 ›› Issue (3): 785-789.

南京江北地区PHC桩竖向承载力可靠度分析

赵新铭，王晓伟，赵春润，黄小娟

南京航空航天大学土木工程系，南京 210016

收稿日期:2007-08-03 出版日期:2008-03-10 发布日期:2013-07-19
作者简介:赵新铭，男，1962年生，博士，副教授，主要从事结构工程和工程力学方面的研究。
基金资助:
国家自然科学基金（No. 59809003）；江苏省2006年水利科技重点项目基金资助。

Reliability analysis of vertical bearing capacity of PHC piles at north bank of Yangtze River, Nanjing

ZHAO Xin-ming, WANG Xiao-wei, ZHAO Chun-run, HUANG Xiao-juan

Dept of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjng 210016, China

Received:2007-08-03 Online:2008-03-10 Published:2013-07-19

摘要/Abstract

摘要： 引入无量纲随机变量的极限状态方程，利用收集到的南京江北地区预应力管桩的试桩资料，采用“校准法”计算了现行地基规范关于桩基设计的总体可靠度水准和可靠指标，分析了总安全系数、荷载效应比和荷载组合形式对可靠指标的影响，并计算了相应的抗力分项系数。研究结果表明，可靠指标与总安全系数、荷载效应比和荷载组合形式有关，而且总安全系数对可靠指标的影响较大。荷载组合形式只对抗力分项系数产生较小的影响。

关键词: PHC桩(高强预应力管桩), 承载力, 可靠度, 分项系数

Abstract: Based on the test data of prestressed high strength concrete(PHC) pile at north bank of the Yangtze River in Nanjing and the limit state equation of dimensionless random variables, the standard of the integral reliability level in the current Specifications of Foundations is calculated with the method of calibration, and the reliability index is calculated. Further more, the influence of general assurance coefficient, loading effect ratio and different load compositions on the reliability index is investigated. Finally, the partial coefficient of the resistance is calculated. It is shown that the reliability index is related to general assurance coefficient, loading effect ratio and different load compositions. In addition, it is also indicated that the influence of general assurance coefficient on the reliability index is remarkable, whereas the influence of different load compositions on the partial coefficient is weak.

Key words: PHC (prestressed high strength concrete pipe) pile, bearing capacity, reliability, partial coefficient

中图分类号:

TU 473.1

赵新铭，王晓伟，赵春润，黄小娟. 南京江北地区PHC桩竖向承载力可靠度分析[J]. , 2008, 29(3): 785-789.

ZHAO Xin-ming, WANG Xiao-wei, ZHAO Chun-run, HUANG Xiao-juan. Reliability analysis of vertical bearing capacity of PHC piles at north bank of Yangtze River, Nanjing[J]. , 2008, 29(3): 785-789.

参考文献

相关文章 15

[1]	李书兆, 王忠畅, 贾旭, 贺林林, . 软黏土中张紧式吸力锚循环承载力简化计算方法[J]. 岩土力学, 2019, 40(5): 1704-1712.
[2]	黄生根, 沈佳虹, 李萌, . 钻孔灌注桩压浆后承载性能的可靠度分析[J]. 岩土力学, 2019, 40(5): 1977-1982.
[3]	王宇飞, 刘润. 砂土中浅埋管道在竖向−水平荷载空间的承载力包络线研究[J]. 岩土力学, 2019, 40(3): 1129-1139.
[4]	张文生, 罗强, 蒋良潍, 李昂, . 小样本岩土参数下考虑矩估计偏差的土质边坡可靠度分析[J]. 岩土力学, 2019, 40(1): 315-324.
[5]	熊晓荣，汤华，廖明进，尹小涛，王东英, . 隧道锚“楔形效应”的室内模型试验研究[J]. , 2018, 39(S1): 181-190.
[6]	宗钟凌，鲁先龙，李青松，. 静压钢管注浆微型桩抗压与抗拔对比试验研究[J]. , 2018, 39(S1): 362-368.
[7]	尹君凡，雷勇，陈秋南，刘一新，邓加政,. 偏心荷载下溶洞顶板冲切破坏上限分析[J]. , 2018, 39(8): 2837-2843.
[8]	蒋水华，刘贤，姚池，杨建华，黄劲松，江先河，. 低概率水平岩质边坡系统可靠度分析[J]. , 2018, 39(8): 2991-3000.
[9]	曹文贵，谭建辉，胡卫东, . 水平加筋地基极限承载力的极限上限分析法[J]. , 2018, 39(6): 1955-1962.
[10]	柳晓科，鹿群，路士伟，刘春龙，郭少龙,. 低裙式吸力桩真空沉贯及抗拔极限承载力[J]. , 2018, 39(6): 2089-2098.
[11]	郭重阳，李典庆，曹子君，高国辉，唐小松. 考虑空间变异性条件下的边坡稳定可靠度高效敏感性分析[J]. , 2018, 39(6): 2203-2210.
[12]	张小艳，张立翔，李泽,. 基于塑性极限分析上限法理论的土质边坡可靠度分析[J]. , 2018, 39(5): 1840-1849.
[13]	范文亮，王余乐，魏奇科，杨朋超，李正良, . 岩土工程可靠度分析的改进四阶矩方法[J]. , 2018, 39(4): 1463-1468.
[14]	陈旺旺，李典庆，唐小松，曹子君, . 抗剪强度参数概率分布的最大熵估计及边坡可靠度分析[J]. , 2018, 39(4): 1469-1478.
[15]	杨智勇，李典庆，曹子君，唐小松, . 基于广义子集模拟的土坡系统可靠度分析[J]. , 2018, 39(3): 957-966.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed