Detail publikačního výsledku

Study of strengthening flat slabs against punching by additional column heads

NOVÁČEK, J.; ZICH, M.

Originální název

Study of strengthening flat slabs against punching by additional column heads

Anglický název

Study of strengthening flat slabs against punching by additional column heads

Druh

Článek Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

concrete; punching; flat slabs; strengthening

Klíčová slova v angličtině

concrete; punching; flat slabs; strengthening

Autoři

NOVÁČEK, J.; ZICH, M.

Rok RIV

2017

Vydáno

01.05.2016

Nakladatel

Trans Tech Publications

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

691

Číslo

-

Stát

Švýcarská konfederace

Strany od

321

Strany do

333

Strany počet

12

URL

https://www.scientific.net/KEM.691.321

BibTex

@article{BUT120450,
  author="Jan {Nováček} and Miloš {Zich}",
  title="Study of strengthening flat slabs against punching by additional column heads",
  journal="Key Engineering Materials (print)",
  year="2016",
  volume="691",
  number="-",
  pages="321--333",
  doi="10.4028/www.scientific.net/KEM.691.321",
  issn="1013-9826",
  url="https://www.scientific.net/KEM.691.321"
}