预应力混凝土桩可靠度分析

Analysis on Degree of Reliability of a Prestressed Concrete Pile

本文对预应力混凝土桩在沉桩阶段和吊运阶段的三个极限状态进行可靠度分析,并对主要随机变量作了概率分布的假设检验,文中还提出了供设计采用的预应力混凝土桩可靠指标等建议。

This paper makes analysis on the degree of reliability of a prestressed concrete pile, and indicates that three limiting conditions, i.e. during lif ting,transporting and sinking, shculd be considered. Chcck cn the probabili ty distribution for main stochastic variables, a way to obtain the degree of reliability is presented in this paper. The author makes further suggestion on the selection of reliability indexes to be used in the design of prestressed concrete piles.