Experimental Study on Long-Span Composite Floor Beams Subject to Fire: Baseline Data at Ambient Temperature

Published

April 17, 2018

Author(s)

Lisa Y. Choe, Selvarajah Ramesh, Matthew S. Hoehler, John L. Gross

Abstract

The National Institute of Standards and Technology recently expanded its large-scale structural-fire testing capabilities in the National Fire Research Laboratory. A landmark test series is being conducted on long-span steel-concrete composite floor beams designed and constructed following U.S. building codes and standards. The test program consists of five 13 m span composite beams with one of two types of shear connections: bolted/welded double-angle connections or single plate shear connections. Two of the five specimens have slab continuity at the beam ends. This paper presents the results from a recent test on the composite beam conducted at ambient temperature. The experimentally measured behavior and flexural moment capacity will be used as a baseline to compare with the composite beams still to be tested under combined mechanical and fire load. The datasets produced are providing technical information necessary to advance performance-based design of composite floor systems in steel- framed buildings subject to fire.

Proceedings Title

Structures Congress 2018

Conference Dates

April 19-21, 2018

Conference Location

Fort Worth, TX

Pub Type

Conferences

Download Paper

https://doi.org/10.1061/9780784481325.015

Keywords

steel-concrete composite beams, steel connections, structural-fire experiments

Citation

Choe, L. , Ramesh, S. , Hoehler, M. and Gross, J. (2018), Experimental Study on Long-Span Composite Floor Beams Subject to Fire: Baseline Data at Ambient Temperature, Structures Congress 2018, Fort Worth, TX, [online], https://doi.org/10.1061/9780784481325.015 (Accessed October 26, 2025)