oa Civil Engineer in South Africa - The minimum quantity of steel to limit the size of cracks in thin concrete walls

Volume 22, Issue 9
  • ISSN : 0009-7845



Expressions are derived for the stresses developed in steel and concrete when a thin concrete wall suffers a fall in temperature. It is shown that the concrete is unlikely to crack unless there is some external restraint. When restraint is complete and a crack occurs there is a considerable reduction in the tension in the wall. Since it ignores this reduction, the simple formula in Appendix B of BS 5337 for the minimum proportion of steel is invalid.

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