Reference Type:  Journal Article
Record Number: 1
Author: Wang, R. L., Zhang, C. and Li, G. Q.
Year: 2015
Title: Simple approach for performance-based fire safety design of circular cft columns in lage enclosure
Journal: Advanced Steel Construction
Volume: 12
Issue: 1
Pages: 12
Start Page: 32
Short Title: Simple approach for performance-based fire safety design of circular cft columns in lage enclosure
DOI: 10.18057/IJASC.2016.12.1.3
Keywords: Concrete filled steel tubular (CFT) columns, Fire resistance, Large enclosure, Localized fires, Simple method, Time equivalent, Performance-based design
Abstract: The usage of concrete filled steel tubular (CFT) columns in large space buildings is increasing. Flashover is unlikely to happen in a large enclosure and the localized fire model is preferable to model the fire environment in a large enclosure fire. This paper proposed a simple approach to evaluate the fire resistance of circular CFT columns in localized fires. Simple model was provided to calculate the column temperatures in a localized fire. The concept of equivalent fire severity or time equivalent was used to correlate the localized fires with the standard fire. The simple model used in the Chinese code was used to calculate the load capacity of the circular CFT columns subjected to the equivalent standard fire exposure. The proposed approach, by correlating real fires with the standard fire, only includes heat transfer analysis and avoids the complex structural analysis, which provides an easy and efficient way for performance-based fire safety design. A case study is also provided to demonstrate the application of the approach.
Author Address: College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China