Analysis applying 3D damage FEM on the formation mechanism of RC box-culvert cracks(1)

Journal of Chongqing Jiaotong University(Natural Science) ›› 2004, Vol. 23 ›› Issue (3): 49-52.

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Analysis applying 3D damage FEM on the formation mechanism of RC box-culvert cracks(1)

WANG Kai, ¹ CHEN Hong-kai, ² LI Li, ³ ZHOU Xiao-liang¹, WANG Yi-jun¹

1.Chongqing Hi-Tech Geotechnical Engineering Survey & Design Institute, Chongqing 400042,China; 2.Chongqing Jiaotong University, Chongqing 400074, China;3.Chongqing Geological Survey Parent Company,Chongqing 400039,China

Received:2003-05-15 Revised:2003-06-26 Online:2004-06-15 Published:2015-05-18

箱涵裂缝形成机理的三维损伤有限元分析(1)

王凯¹,陈洪凯²,黎力³,周小亮¹,王益俊¹

1.重庆市高新岩土工程勘察设计院,重庆400042；2.重庆交通学院,重庆400074；3.重庆市地勘总公司,重庆400039

作者简介:王凯(1972—),男,重庆涪凌人,硕士,主要从事岩土工程勘察、设计及科研工作

Abstract

Abstract: The paper tried to couple Damage theory with 3D FEM(ie. Damage FEM), and applied to analysis of whole structure’s damage. Define new Degree of Damage with strain as varies of damage. On the basis of this, modify the equation of J.Mazars and build the new damage equation. Ulteriorly form a checkout method. Using the method to analyse mechanism of box-culvert’s cracks formation in Shabin Road in Chongqing. Developing the method is significant for damage theory being applied to engineering practice

Key words: box-culvert, cracks’ formation, degree of damage, damage FEM, damage field

摘要： 笔者尝试实现损伤理论与有限元的结合(损伤有限元)，并运用于对整体结构的损伤进行分析衡量.为此，以应变为损伤变量定义了新的内变量-损伤度，并在此基础上修正了J.Mazars的本构方程建立新的损伤本构方程. 进而形成一种用于结构整体的强度校核方法.将这一方法运用于重庆市沙滨路排污管道试验段砼箱涵的裂缝形成的损伤机理分析和强度校核，实践证明是可行的.本方法的发展对损伤力学运用于工程实际具有重要意义

关键词: 箱涵, 裂缝形成, 损伤度, 损伤有限元, 损伤场

CLC Number:

P642

WANG Kai, CHEN Hong-kai, LI Li, ZHOU Xiao-liang, WANG Yi-jun. Analysis applying 3D damage FEM on the formation mechanism of RC box-culvert cracks(1)[J]. Journal of Chongqing Jiaotong University(Natural Science), 2004, 23(3): 49-52.

王凯1,陈洪凯2,黎力3,周小亮1,王益俊1. 箱涵裂缝形成机理的三维损伤有限元分析(1)[J]. 重庆交通大学学报（自然科学版）, 2004, 23(3): 49-52.

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Analysis applying 3D damage FEM on the formation mechanism of RC box-culvert cracks(1)

箱涵裂缝形成机理的三维损伤有限元分析(1)

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