海底隧道大体积混凝土温度场及温度应力有限元分析  

Finite Element Analysis of Mass Concrete Temperature Fields and Temperature Stress in Submarine Tunnel

作　　者：方忠强[1] 赵延喜[2] 

机构地区：[1]江苏省交通规划设计院股份有限公司,江苏南京210014 [2]南京工程学院,江苏南京211167

出　　处：《交通标准化》2014年第21期115-118,共4页Communications Standardization

摘　　要：大体积混凝土的温度裂缝与混凝土的温度场和温度应力分布关系密切。重点探讨了应用有限元法求解大体积混凝土温度场和温度应力发展过程的模拟方法。以厦门南港海隧道为例,提出了大体积混凝土温度应力方程,编制了大体积混凝土温度场和温度应力计算程序。研究结果表明,采用有限元可以模拟大体积混凝土在温度场作用下的应力发展过程,计算结果符合混凝土浇筑过程中的温度应力分布规律。The temperature cracks of mass concrete closely relate to the temperature field and tempera-ture stress. The article focuses on the application of finite element method in solving the mass concrete temperature field and temperature stress. Taking Nanganghai Tunnel in Xiamen as an instance, a mass concrete temperature stress equation is proposed, a calculation program of mass concrete temperature field and temperature stress is also written. The finite calculation results show that the finite element soft-ware can simulate the stress development process of mass concrete under temperature field, the results ac-cord with the temperature stress distribution rule in the concrete pouring process.

关 键 词：大体积混凝土 有限元法 温度场 温度应力 数值模拟 

分 类 号：U414.01[交通运输工程—道路与铁道工程]