| Autor: |
Baluch, Mohammed H., Rahman, Muhammad Kalimur, Mahmoud, Isam A. |
| Předmět: |
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| Zdroj: |
Concrete International; Jul2008, Vol. 30 Issue 7, p37-41, 5p, 3 Color Photographs, 2 Diagrams, 3 Charts, 2 Graphs |
| Abstrakt: |
The article reports on the calculation of shrinkage stresses. It discusses the technique which takes advantage of the analogy between the diffusion equation and the heat transfer equation which allows engineers to use readily available tools to examine concrete structures for stresses originating from restrained drying shrinkage. The procedure involves a two-step process. The first step is to ascertain the moisture motion in concrete using the heat transfer module of a commercial finite element program. The second step involves using an empirically-derived coefficient used in the stress analysis module of the same program to acquire stresses due to restrained shrinkage strains. |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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