oa Civil Engineer in South Africa - Analysis and testing of reinforced concrete cantilever slabs subjected to point loading
|Article Title||Analysis and testing of reinforced concrete cantilever slabs subjected to point loading|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineer in South Africa|
|Publication Date||Jun 1982|
|Pages||239 - 249|
It is disturbing to notice that large differences can occur when designing reinforced concrete cantilever slabs for strength by elastic methods or, alternatively, by ultimate approaches such as the yield-line analysis. The results are therefore reported of a comparison between elastic analysis, yield-line analysis and laboratory tests for reinforced concrete cantilever slabs subjected to point loading.
In essence, the theoretical study embraces a number of different reinforcement arrangements in a slab of infinite length and finite span.
The laboratory tests were performed on three slabs with a length to span ratio of 6 and on three further slabs with a length to span ratio of 8,8. The major purpose of these tests was to measure the actual failure loads for comparison with theoretical results.
A conclusion has been drawn regarding the suitability of the yield-line approach in analysing slabs of the nature investigated in this study. In addition, the serviceability limit state of deflection is discussed in some detail using the load-deflection curves recorded during the experiments.
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