Publication detail

Thermo-Mechanical Behavior of fire Protection Boards

DIEDERICHS, U. JÄNTSCH, S. SKLENÁŘOVÁ, D.

Original Title

Thermo-Mechanical Behavior of fire Protection Boards

Type

conference paper

Language

English

Original Abstract

In the course of the repair and fire protection upgrading of an approx. 1100 m long road tunnel in Hamburg, the eleven crossings of fire protection channels were covered with sheet steel to prevent the nesting of pigeons. In this context, the mechanical strains that may occur in the event of a fire had to be determined. In particular, it was necessary to clarify which mechanical loads would result from relative movements between the substrate (fire protection board) and the cover sheets due to their different thermal expansion in case of fire. For this purpose, the thermal behavior of the CSH fire protection board was determined by means of simultaneous thermal analysis and dilatometry, and the mechanical and thermal behavior of the composite construction was studied. The studies revealed that due to the facts that thermal expansion of the both materials and due to the softening of the fire protection panel the restraint that is generated by the screwed-on perforated plate in the vicinity of the screw shafts remains low during thermal loading. As a result, the top plate does not crack or break off, which means that screwing on the perforated steel sheets not negatively affects the fire protection of the panels.

Keywords

tunnel fire, RABT fire curve, calcium silicate hydrate, fire protection boards, thermal expansion, thermal decomposition reaction, strength at high temperature

Authors

DIEDERICHS, U.; JÄNTSCH, S.; SKLENÁŘOVÁ, D.

Released

11. 10. 2021

Publisher

Trans Tech Publications Ltd.

Location

Švýcarsko

ISBN

9783035738704

Book

Binders, Materials and Technologies in Modern Construction VII

ISBN

1662-9779

Periodical

Solid State Phenomena

Year of study

2021

Number

325

State

Swiss Confederation

Pages from

209

Pages to

214

Pages count

6

URL

https://www.scientific.net/SSP.325.209

BibTex

@inproceedings{BUT176443,
  author="Ulrich Martin {Diederichs} and Sandra {Jäntsch} and Dorothea {Sklenářová}",
  title="Thermo-Mechanical Behavior of fire Protection Boards",
  booktitle="Binders, Materials and Technologies in Modern Construction VII
",
  year="2021",
  journal="Solid State Phenomena",
  volume="2021",
  number="325",
  pages="209--214",
  publisher="Trans Tech Publications Ltd.",
  address="Švýcarsko",
  doi="10.4028/www.scientific.net/SSP.325.209",
  isbn="9783035738704",
  issn="1662-9779",
  url="https://www.scientific.net/SSP.325.209"
}