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dc.titleStability of steel frames in natural fire
dc.contributor.authorMa, K.Y.
dc.contributor.authorLiew, J.Y.R.
dc.identifier.citationMa, K.Y.,Liew, J.Y.R. (2003). Stability of steel frames in natural fire. Proceedings - Annual Technical Session, Structural Stability Research Council : 403-422. ScholarBank@NUS Repository.
dc.description.abstractWhen a complete structure, as opposed to an isolated structural element, is exposed to an attacked fire, there are a variety of interactions between structural components. Because of these interactions, the behavior of a steel structure in fire can be drastically different from that of its structural elements in isolation. This paper presents an advanced modeling technique that can be applied to assess the stability of the steel structures exposed to compartment fire. The analysis accounts for both material and geometric nonlinear effects. The stability of the structure and the important interactions between the components are captured by considering the structure as a complete entity rather than a collection of isolated members. Natural fire, in contrast to the ISO standard fire, is simulated to represent the real fire development in a building compartment. Verifications studies are carried out on both components and frames over a wide range of parameters including uniformly heated members, three-side heated members, members with passive fire protection, two-dimensional frames as well as three-dimensional frame. The proposed approach is then used to investigate the effect of force redistribution on the stability of a three-dimensional multi-story frame subjected to natural compartment fire and the effect of steel beam catenary action on frame stability. The advantage of the advanced analysis is highlighted.
dc.typeConference Paper
dc.contributor.departmentCIVIL ENGINEERING
dc.description.sourcetitleProceedings - Annual Technical Session, Structural Stability Research Council
Appears in Collections:Staff Publications

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