Publication result detail

Study of Flat Slabs Strengthening against Punching Shear

NOVÁČEK, J.; ZICH, M.

Original Title

Study of Flat Slabs Strengthening against Punching Shear

English Title

Study of Flat Slabs Strengthening against Punching Shear

Type

Paper in proceedings (conference paper)

Original Abstract

Over the past few years, punching shear has been in the forefront of both research teams and professional public due to a new approach to its verification according to Model Code 2010. From this topic, the task of flat slabs strengthening against punching shear has arisen. This problem, and in particular the problem of flat slabs strengthened by additional concrete column heads, is the focus of this paper. Structures are analysed using a 3D FEM models including material and geometric nonlinearity. The way of modelling is validated against experiments on non-strengthened flat slabs subjected to punching shear. At first, strengthening with a rigid connection at the interface between structures is considered and then, several different types of connection at the interface are evaluated. Finally, strengthening of structures with varying lengths of top flexural reinforcement in the slab is modelled while minimum anchorage length outside the additional column head is verified.

English abstract

Over the past few years, punching shear has been in the forefront of both research teams and professional public due to a new approach to its verification according to Model Code 2010. From this topic, the task of flat slabs strengthening against punching shear has arisen. This problem, and in particular the problem of flat slabs strengthened by additional concrete column heads, is the focus of this paper. Structures are analysed using a 3D FEM models including material and geometric nonlinearity. The way of modelling is validated against experiments on non-strengthened flat slabs subjected to punching shear. At first, strengthening with a rigid connection at the interface between structures is considered and then, several different types of connection at the interface are evaluated. Finally, strengthening of structures with varying lengths of top flexural reinforcement in the slab is modelled while minimum anchorage length outside the additional column head is verified.

Keywords

concrete; punching shear; strengthening of slabs

Key words in English

concrete; punching shear; strengthening of slabs

Authors

NOVÁČEK, J.; ZICH, M.

RIV year

2017

Released

01.04.2016

Publisher

Trans Tech Publications Ltd

ISBN

978-3-03835-675-2

Book

Proceedings from 22nd Czech Concrete Day 2015

ISBN

1012-0394

Periodical

Solid State Phenomena

Volume

249

State

Swiss Confederation

Pages from

221

Pages to

226

Pages count

6

URL

https://www.scientific.net/SSP.249.221

BibTex

@inproceedings{BUT122170,
  author="Jan {Nováček} and Miloš {Zich}",
  title="Study of Flat Slabs Strengthening against Punching Shear",
  booktitle="Proceedings from 22nd Czech Concrete Day 2015",
  year="2016",
  journal="Solid State Phenomena",
  volume="249",
  pages="221--226",
  publisher="Trans Tech Publications Ltd",
  doi="10.4028/www.scientific.net/SSP.249.221",
  isbn="978-3-03835-675-2",
  issn="1012-0394",
  url="https://www.scientific.net/SSP.249.221"
}