Nonlinear Numerical Analysis in the Vicinity of Supports of Hollow Core Slabs


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Abstract


The development of building techniques of hollow core slabs allowed its wide use in different types of structure, although some characteristics of prefabricated elements still cause uncertainties in the scientific community. The shear strength and failure mechanisms in the region of support are some of the issues raised including the large proportion of voids in cross sections without shear reinforcement, the lengths of support usually small, the anchorage of strands and the dispersion of prestressing force. To investigate these issues, this paper presents nonlinear numerical analysis of hollow cores slabs subjected to bending moment and shear, considering the bond between the strand and concrete. The models generated with the commercial software ATENA are discussed and compared with experimental results, clarifying the points raised.
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Keywords


Hollow Core Slabs; Nonlinear Numerical Analysis; Precast

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References


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