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Shear capacity of hollow core slabs in Slim-Floor-Constructions

 Shear capacity of hollow core slabs in Slim-Floor-Constructions
Author(s): ORCID,
Presented at 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008, published in , pp. 228-229
DOI: 10.2749/222137908796292399
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A common type of Slim-Floor-Constructions consists of prestressed hollow core slabs supported on the lower flange of transverse shallow steel beams. This construction method enables slender cei- li...
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Bibliographic Details

Author(s): ORCID

Medium: conference paper
Language(s): English
Conference: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008
Published in:
Page(s): 228-229 Total no. of pages: 8
Page(s): 228-229
Total no. of pages: 8
Year: 2008
DOI: 10.2749/222137908796292399
Abstract:

A common type of Slim-Floor-Constructions consists of prestressed hollow core slabs supported on the lower flange of transverse shallow steel beams. This construction method enables slender cei- lings without girders. However, the shear capacity of the hollow core slabs is considerably reduced due to transverse stresses when the supporting beams with a limited bending stiffness deflect. At the Institute of Structural Concrete at RWTH Aachen University, four full-scale tests on two-span floor systems were performed to investigate the load bearing behavior of hollow core slabs on flexible supports. The effects of several test parameters, such as cross section of the slabs, bending stiffness of the steel beam, bearing details, horizontal constraints of the slabs and filling of selected cores on the shear capacity were determined. International design provisions are briefly described and recommendations regarding the construction and the design are given.

Keywords:
prestressing shear capacity precast concrete hollow core slabs flexible supports