ISSN:
1572-8099
Schlagwort(e):
fire
;
performance-based design
;
standards
;
fire resistance
;
fire exposure
;
thermal response
;
carbonate aggregate
;
elevated temperatures
;
moisture content
;
pore pressure
;
contours
;
fire test
;
ASTM E119
;
ASTM E1529
;
heat transfer
;
mass transport
;
dehydration
;
evaporation
;
hydrocarbon pool fire
;
high-strength concrete
;
high-strength concrete columns
;
structural fire resistance
;
size effects
;
spalling
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Architektur, Bauingenieurwesen, Vermessung
Notizen:
Abstract A mathematical and computational model to stimulate a two-dimensional thermal response of high-strength concrete columns subjected to fire is presented. Contours as well as history and distribution profiles for temperature, moisture content, and pore pressure are illustrated as model output. The model's predictions are validated against ASTM E119 fire test data from a high-strength concrete (HSC) column test and are subsequently compared to output based on a hydrocarbon pool fire (ASTM E1529) exposure. The model's handling of input fires other than ASTM E119 demonstrates its usefulness and adaptability to a performance-based design environment. Results from parametric studies reveal the importance of performing thermophysical material property tests under fire exposures similar to those at which full-scale specimens are to be tested. The influence of size effects on data obtained from small- and large-scale fire test programs is discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1015436510431
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