Test Research on the Behaviors of Steel Bar Truss and Concrete Superimposed Floor Slabs

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Tests on two simple supported steel bar truss and concrete superimposed floor slabs have been carried out to study their mechanic behavior and bearing capacities. The one is prefabricated steel truss concrete slab without temporary support in the mid-span to simulate its mechanic status in construction stage, the other is superimposed board (prefabricated + post-cast layer) in use phase. Test results show that the deformation of the prefabricated steel truss concrete slab in construction stage meets the requirement of the Code, and the slab is mainly controlled by deflection instead of cracks; Performance of superimposed board is excellent in use stage; and the steel bar is elastic in both stages during the tests.

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3-8

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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