![]() ![]() The thickness of the concrete cover has little effect on the residual bearing capacity. The load ratio of the T-shaped beam also has a great influence on the residual bearing capacity of the beam after fire exposure this ratio is negatively correlated with the residual bearing capacity. The results show that the height-to-width ratio and the reinforcement ratio have a great influence on the residual bearing capacity of the T-shaped beam after fire exposure these ratios are positively correlated with the residual bearing capacity. The influences of the load ratio, reinforcement ratio, height-to-width ratio and concrete cover thickness on the residual bearing capacity of a concrete beam after fire exposure were studied, and then a calculation formula for predicting the residual bearing capacity of a concrete T-shaped beam considering fire cracks was proposed according to these influencing factors. The effect of the concrete crack size under fire exposure on the post-fire residual bearing capacity was carefully considered in the calculation method. ![]() To obtain an accurate estimation of the residual bearing capacities of concrete T-shaped beams after fire exposure, a calculation method combined the finite element (FE) thermal simulation and analytical equilibrium equation was established on a basis of an experimental study of fire (high-temperature) exposure.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |