Ultimate Strength of Post-tension Hollow Core Slab (HCS) for IBS Constructions
摘要：
Post-tension hollow core slabs are not common as load receiving floors. While hollowing out the solid slab is to reduce weight as the centre portion of the hollow slab panels carries small self stress. The paper presents an experimental study on the effect of post-tensioned on the ultimate strength of hollow slabs. In this research two units of full scale slab of equal span, cross section and depth are tested in laboratory to failure. Specimens were subjected to experimental with and without post-tension at varying post-stressing. The behaviour of both specimens was studied for bending moments and predominantly shears behaviour. These experiments yielded valuable information concerning the effects of post-tension force to the overall behaviour of failure. Load tests were carried out under seminally serviceability limit state of stresses. It is concluded that post-tension can be used to increase the bearing capacity of hollow slabs by up to 15% with the failure mode changes from flexural to shear as observed in laboratory experiments.
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年份：
2012
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