To address the above limitations, a number of developments, which can be used with general FEA software, such as DIANA, to design timber structures for fire, are presented. The developments are incorporated via user-supplied subroutines written in FORTRAN code. The routines include code for determining MoE and strength based upon stress state, temperature and temperature history. They are implemented as part of a total strain-based constitutive model. The implementation of the routines is demonstrated using a simple continuous beam. The example is also used to demonstrate how compartmentation provisions and aspects of whole building behaviour can be used to better design large-section timber buildings. Comparisons are made with simple empirical approaches presented in EN 1995-1-2. Extensions to ‘performance-based design’ using parametric fires are also discussed.
Hopkin, D., El-Rimawi, J., Silberschmidt, V. and Lennon, T. (2012), "Advanced Fire Design of Timber Structures Using Computational Techniques - Simple Indeterminate Structures", Journal of Structural Fire Engineering, Vol. 3 No. 3, pp. 215-234. https://doi.org/10.1260/2040-2322.214.171.124Download as .RIS
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