Use of sub-structuring in modelling of composite building response to compartment fires [chapter]

Z HUANG, I BURGESS, R PLANK
2005 Fourth International Conference on Advances in Steel Structures  
In this paper an appropriate procedure, which employs a sub-structuring technique together with selective node re-numbering, for the numerical modelling of building response to fires which are restricted to compartments within the building, is described. In this procedure user-defined cool regions of the building model are sub-structured and condensed into a linear "super-element", which has nodes connected to the non-linear sub-frames located within, and in the immediate vicinity of, the fire
more » ... one. The procedure has been incorporated into the non-linear program Vulcan which has been developed to model the structural response of loaded structures to fire attack, and two full-scale fire tests have been modelled to examine the computational efficiency of the method. The method makes it much easier than previously to investigate the influence of the surrounding cool structure on the behaviour of elements within the fire compartment, and this has been investigated for these two tests.
doi:10.1016/b978-008044637-0/50151-7 fatcat:p6d2yzwfuzfsjha25x5fabfmf4