（重庆市建筑科学研究院， 重庆 400042）

［摘要］以某新建工程为背景，首先对该工程混凝土构件的裂缝开展状态、材料性能和截面尺寸进行现场检测及调查，然后基于有限元分析方法，提出了基于有限元模型的混凝土结构裂缝成因分析新方法，通过研究各荷载工况下开裂混凝土构件的主拉应力方向，以确定构件的开裂规律，并与现场混凝土构件的实际开裂规律进行比对，确定裂缝产生的主要原因。

［关键词］混凝土结构； 裂缝原因； 开裂规律

中图分类号：TU375-4文献标识码：A文章编号：1002-848X(2019)23-0134-05

A new method to analyze causes of cracks in concrete structure based on finite element model

Luo Jun， Xie Chuanxi， Wang Yaowei

(Chongqing Construction Science Research Institute, Chongqing 400042, China)

Abstract:Based on the background of a new construction project, the crack development state, material performance and section size of the concrete components of the project were firstly inspected and investigated on site. Then, based on the finite element analysis method, a new method of crack reason analysis of the concrete structure was proposed based on the finite element model. By studying the main tensile stress direction of the cracked concrete components under various load conditions, the cracking rule of components was determined. Compared with the actual cracking rule of concrete components in the field, the main causes of cracks were determined.

Keywords:concrete structure; crack reason; cracking rule

作者简介：罗钧，博士，高级工程师，Email：jluo@cqu.edu.cn。