Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Simulation of Realistic Thermal Restraint During Fire Tests of Floor and Roof Assemblies
A five phase program was conducted to simulate and measure the thermal restraint of concrete floor and roof slabs during standard fire exposure tests. Phase I involved measuring temperature distributions, expansions and deflections of small size slabs. In Phases II and III, computer programs for heat flow calculations and stress analysis were developed. Six 14 x 18 ft floor slabs were tested for 4-hr. durations, during which expansions in both directions were controlled to follow computed time-expansion relationships. Differences were noted and are probably associated with creep strains not considered in the computer model. Four more large slabs were fire tested in Phases IV and V. Expansions and restraining forces were measured in tests with and without compressible pads. Reasonable agreement was obtained and it is therefore possible to use fixed frame furnaces to simulate realistic thermal restraints in fire tests of floor slabs. No spalling or structural damage was observed during any of the tests.
Simulation of Realistic Thermal Restraint During Fire Tests of Floor and Roof Assemblies
A five phase program was conducted to simulate and measure the thermal restraint of concrete floor and roof slabs during standard fire exposure tests. Phase I involved measuring temperature distributions, expansions and deflections of small size slabs. In Phases II and III, computer programs for heat flow calculations and stress analysis were developed. Six 14 x 18 ft floor slabs were tested for 4-hr. durations, during which expansions in both directions were controlled to follow computed time-expansion relationships. Differences were noted and are probably associated with creep strains not considered in the computer model. Four more large slabs were fire tested in Phases IV and V. Expansions and restraining forces were measured in tests with and without compressible pads. Reasonable agreement was obtained and it is therefore possible to use fixed frame furnaces to simulate realistic thermal restraints in fire tests of floor slabs. No spalling or structural damage was observed during any of the tests.
Simulation of Realistic Thermal Restraint During Fire Tests of Floor and Roof Assemblies
T. D. Lin (Autor:in) / M. S. Abrams (Autor:in)
1981
178 pages
Report
Keine Angabe
Englisch
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