01473559

Component

Flexible corrugated steel culverts have been used in engineering for many years, with the first application in 1931. Since that time, the popularity of these structures has increased enormously. Soil-steel bridges are more and more used as road and railway tunnels and heightened interest on the issue of structural fire protection of tunnels. In summer 2012 a tunnel built of steel corrugated sheets was constructed in Karpacz city in Poland. The structure served as road tunnel under a ski slope. The 100 m long tunnel is a metal open arch with a span of 11.15 m and a rise of 6.50 m. The steel tunnel with fire protection is the first buried structure in Europe. This paper describes laboratory tests of protection layer during experimental fire tests. The main goal of the conducted laboratory fire tests was to evaluate the steel structure with fire protection layer in configuration of part of the tunnel structure. Temperature on the surface of the steel plates and deflections in metal plates were measured. The instrumentations included temperature gauges installed on the metal plates and a device to monitor deflections of the structure. The experimental results obtained during measurements are shown in graphs/tables. The research project is sponsored by ViaCon Company and Torkret Company in Poland.

This paper was sponsored by TRB committee AFF60 Tunnels and Underground Structures.

01470560

13-3015

English

9p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Corrugated steel; Fire resistance; Laboratory tests; Steel plates; Tunnels

Poland

Bridges and other structures; Highways; Materials; I34: Steels and Metals; I54: Construction of Tunnels

Transportation Research Board Annual Meeting 2013 Paper #13-3015

TRIS, TRB, ATRI

Feb 5 2013 12:37PM