Crack Formation and Strength of Fire Damaged Concrete Beam

Abstract:

The Rigid-Body-Spring-Model was applied for analyzing fire-damaged concrete beam with voronoi random mesh. Material models of fire-damaged concrete was defined by the experiment. To evaluate the performance and effectiveness of the RBSM with voronoi random mesh, four models of fire damaged concrete beam at various temperatures covered 20°C and 100 to 800°C were analyzed. According to the results, heated specimen 800°C has the lowest strength capacity and internal stress comparing to the other specimens. Main crack of 800°C specimen appears earlier than other specimens. Strength capacity of heated specimen 400°C was higher than the results of unheated specimen because of hydration reaction of large cement clinker was accelerate during heating.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 1121-1126
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.1121
• Online since: May 2012
• Authors: Worapong Srisoros, K Kaewpetch, P Ariyasuk, A Chokcharoenmahasarn
• Keywords: Crack Formation, Fire Damaged Concrete, Rigid-Body-Spring-Model

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