Experimental and Numerical Studies of Multi-compartment Spreading Fire in a Full-Scale Steel Framed Building

被引:6
作者
Ruan, Shipeng [1 ]
Zhao, Jincheng [1 ,2 ]
Song, Zhensen [1 ,2 ]
Duan, Liping [1 ,2 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China
[2] Shanghai Key Lab Digital Maintenance Bldg & Infra, Shanghai 200240, Peoples R China
关键词
Full-scale experiment; FDS modeling; Multi-compartment spreading fire; Steel framed building; Non-uniform temperature; TRAVELING FIRES; COMPARTMENT; SIMULATION; MODEL; TEMPERATURES; CONCRETE;
D O I
10.1007/s10694-022-01301-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Fire dynamic characteristics in multi-compartments are still not very clear. This paper presents a spreading fire test in a full-scale two-storey steel framed building to investigate the multi-compartment fire behavior. In the test program, the fuel was made by a total of 6.8 m(3) discrete pine cribs and then ignited at one compartment. The spatial temperature and steel member temperature histories were recorded throughout the fire test. FDS model was then established and compared with the fire experiment results. Reasonable agreement between experimental and numerical results was achieved at the fire growth stage and spreading stage. Based on test results, it was observed that flames spread to the fire-spreading compartment in 82 min after fire when the fire in the fire-source compartment fully developed, which caused multiple temperature peaks and significant temperature gradients. The experiment revealed the possibility and characteristics of fire spread among multi-compartments. It also verified the invalidity of the homogeneous temperature assumption and provided important data for performance-based structural fire design in multi-compartment spreading fire scenarios.
引用
收藏
页码:3235 / 3260
页数:26
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