土木工程与管理学报2025，Vol.42Issue(3)：73-79,7.DOI:10.13579/j.cnki.2095-0985.2025.20240383
基于有限差分法的PRC桩承载性能数值模拟
Numerical Simulation of Flexural Bearing Performance of PRC Pipe Piles Based on Finite Difference Method
陈楠 1王涛 1文赛 1隆林栩 2金宇轩3
作者信息
- 1. 长沙智城置业有限公司,湖南 长沙 410023
- 2. 湖南省交通规划勘察设计院有限公司,湖南 长沙 410200
- 3. 湖南省交通科学研究院有限公司,湖南 长沙 410015
- 折叠
摘要
Abstract
Affected by factors such as mixed reinforcement and prestress level,the actual bending ca-pacity of PRC piles is less than the theoretical calculation value.In order to correctly evaluate the flexural capacity of PRC piles,this paper studies the flexural bearing performance of PRC piles based on the finite difference method.Firstly,the laboratory experiments on the flexural performance of PRC piles were numerically simulated to verify the feasibility of the numerical simulation method,and on this basis,the influence of various design parameters on the bending and crack resistance of PRC pipe piles was explored.The results show that the PRC pile goes through three stages:elastic stage,plastic zone crack working stage and instability failure stage from the beginning of work to instability failure.The larger the prestress,the greater the bearing capacity,the better the bending resistance and the stronger the crack resistance.The stirrups have limited effect on the flexural capacity and crack resist-ance of PRC piles,and the improvement effect of stirrups on the flexural resistance and crack resist-ance of PRC piles can be ignored in the design.关键词
混合配筋预应力混凝土管桩/抗弯性能/受弯承载力/弯矩-挠度曲线/数值模拟Key words
prestressed and reinforced concrete pipe pile/flexural performance/flexural bearing ca-pacity/moment-deflection curve/numerical simulation分类
建筑与水利引用本文复制引用
陈楠,王涛,文赛,隆林栩,金宇轩..基于有限差分法的PRC桩承载性能数值模拟[J].土木工程与管理学报,2025,42(3):73-79,7.
