### Abstract

A simplified principal stress criterion for the web shear failure is introduced. The criterion is based on three stress components. The vertical shear stress τzy and the axial stress σy are calculated as for slabs supported on nonflexible bearings. The transverse shear stress τzx is calculated applying beam theory to a composite beam comprising the beam, joint concrete, a section of the slabs, and the optional topping.

The width of the section is an experimental parameter that takes into account the degree of composite interaction between the slabs and the beam. It is assumed to be proportional to the span of the beam.

Also presented are the modifications needed when the beams are continuous, the floor is covered with reinforced concrete topping, or the ends of the hollow cores are filled with concrete.

Original language | English |
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Pages (from-to) | 1062-1073 |

Journal | Journal of Structural Engineering |

Volume | 124 |

Issue number | 9 |

DOIs | |

Publication status | Published - 1998 |

MoE publication type | A1 Journal article-refereed |

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### Cite this

*Journal of Structural Engineering*,

*124*(9), 1062-1073. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:9(1062)

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*Journal of Structural Engineering*, vol. 124, no. 9, pp. 1062-1073. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:9(1062)

**Shear resistance of PHC slabs supported on beams : II: Analysis.** / Pajari, Matti.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Shear resistance of PHC slabs supported on beams

T2 - II: Analysis

AU - Pajari, Matti

PY - 1998

Y1 - 1998

N2 - A simple calculation model is proposed for prediction of the shear resistance of prestressed hollow-core (PHC) slabs supported on beams. A simplified principal stress criterion for the web shear failure is introduced. The criterion is based on three stress components. The vertical shear stress τzy and the axial stress σy are calculated as for slabs supported on nonflexible bearings. The transverse shear stress τzx is calculated applying beam theory to a composite beam comprising the beam, joint concrete, a section of the slabs, and the optional topping. The width of the section is an experimental parameter that takes into account the degree of composite interaction between the slabs and the beam. It is assumed to be proportional to the span of the beam. Also presented are the modifications needed when the beams are continuous, the floor is covered with reinforced concrete topping, or the ends of the hollow cores are filled with concrete.

AB - A simple calculation model is proposed for prediction of the shear resistance of prestressed hollow-core (PHC) slabs supported on beams. A simplified principal stress criterion for the web shear failure is introduced. The criterion is based on three stress components. The vertical shear stress τzy and the axial stress σy are calculated as for slabs supported on nonflexible bearings. The transverse shear stress τzx is calculated applying beam theory to a composite beam comprising the beam, joint concrete, a section of the slabs, and the optional topping. The width of the section is an experimental parameter that takes into account the degree of composite interaction between the slabs and the beam. It is assumed to be proportional to the span of the beam. Also presented are the modifications needed when the beams are continuous, the floor is covered with reinforced concrete topping, or the ends of the hollow cores are filled with concrete.

U2 - 10.1061/(ASCE)0733-9445(1998)124:9(1062)

DO - 10.1061/(ASCE)0733-9445(1998)124:9(1062)

M3 - Article

VL - 124

SP - 1062

EP - 1073

JO - Journal of Structural Engineering

JF - Journal of Structural Engineering

SN - 0733-9445

IS - 9

ER -