Author URLs
Document Type
Article
Publication Date
12-2010
Subject: LCSH
Fire prevention--Research, Structural stability
Disciplines
Civil Engineering
Abstract
A general reliability-based methodology is proposed for developing capacity reduction and fire load factors for design of steel members exposed to fire. The effect of active fire protection systems (e.g., sprinklers, smoke and heat detectors, fire brigade, etc.) in reducing the probability of occurrence of a severe fire is included. The design parameters that significantly affect the fire design of steel members are chosen as random variables. Raw experimental data published in the literature was analyzed to obtain the statistics of parameters for which no statistical information was available in the literature. Model errors associated with the thermal analysis models are also characterized based on experimental data. It is found that uncertainty associated with the fire design parameters is significantly higher than that of room temperature design parameters. To illustrate the proposed methodology, capacity reduction and fire load factors are developed for simply supported steel beams in U.S. office buildings, and it is shown that for consistent reliability these factors should vary depending on the presence of active fire protection systems in a building.
DOI
10.1061/%28ASCE%29ST.1943-541X.0000256
Repository Citation
Iqbal, Shahid and Harichandran, Ronald S., "Capacity reduction and Fire Load Factors for LRFD of Steel Members Exposed to Fire" (2010). Civil Engineering Faculty Publications. 19.
https://digitalcommons.newhaven.edu/civilengineering-facpubs/19
Publisher Citation
Iqbal, S., and Harichandran, R.S. (2010). “Capacity reduction and fire load factors for LRFD of steel members exposed to fire.” Journal of Structural Engineering, ASCE, 136(12), 1554-1562. doi:10.1061/%28ASCE%29ST.1943-541X.0000256
Comments
This is the authors' accepted version of the article published in Journal of Structural Engineering. The version of record can be found in the ASCE library at http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0000256.