Cracking safety evaluation on gravity concrete dams during the construction phase

被引：23
|
作者：
de Araujo, JM
Awruch, AM
机构：
[1] FURG, Dept Mat & Construct, BR-96203000 Rio Grande, RS, Brazil
[2] UFRGS, Grad Program Civil Engn, BR-90035190 Porto Alegre, RS, Brazil
来源：
COMPUTERS & STRUCTURES | 1998年 / 66卷 / 01期
关键词：
concrete cracking; concrete dam; concrete rheological behaviour; heat transfer analysis; finite element analysis;
D O I：
10.1016/S0045-7949(97)00048-5
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The cracking phenomenon in concrete gravity dams during the construction phase is analysed in this work. Stresses due to the self-weight of the dam, thermal gradients, creep and drying shrinkage are computed, taking into account the different stages of the construction process. A two-dimensional constitutive model considering time dependent and temperature dependent mechanical properties is adopted for the concrete. Safety against cracking is obtained using a criterion independent of the finite element mesh. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：93 / 104
页数：12
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