Thermal loading and fire engineering paper
Tao, Z 2014, 'Stress-strain curves of prestressing steel after exposure to elevated temperatures', in ST Smith (ed.), 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), vol. II, Byron Bay, NSW, 9-12 December, Southern Cross University, Lismore, NSW, pp. 1071-1076. ISBN: 9780994152008.
To evaluate the damage to a structure after fire exposure, the residual mechanical properties of structural materials need to be evaluated first. A literature review is conducted to analyse the major factors influencing the post-fire properties of prestressing steel. Existing test data are collected from an extensive survey of the available literature. A simplified stress-strain model is developed for prestressing steel in residual conditions (i.e. after heating and cooling to room temperature). Measured stress-strain curves are used to verify the accuracy of the proposed model.