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Effect of Previous Fire on Load-Slip Relationship at a Modified Push-Out Test (Experimental Study) | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 9, Issue 3, 2005, Pages 50-60 | ||
| Authors | ||
| Mukhallad A. Al-Sa; | ||
| Abstract | ||
| In this paper, the effect of previous heating on load-slip relationship in modifiedpush-out test is studied. Specimens of concrete slab with connectors (connector embeddedin the concrete slab) were put in an oven of high heating for at least one hour afterreaching a specified temperature (300~700) oC. Due to these high temperatures, thecompressive strength of concrete was reduced and cracks were seen on the surface ofconcrete. The slip was increased and the stiffness of the connector was decreasedsignificantly. It is concluded that the effect of previous heating on the connector stiffness isgreater than its effect on the compressive strength of concrete due to presence of cracks inconcrete after heating to high temperatures.@@ | ||
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