FraMCoS 2 1995 Zurich, Switzerland

Computer Simulation of Fasteners in Concrete Under Fire

A numerical study was performed to investigate the behavior of a headed anchor subjected to fire in case of concrete cone failure. Headed stud anchors were analyzed using the improved non-local microplane material model. The influence of heating of the…

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Year 1995
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Abstract

A numerical study was performed to investigate the behavior of a headed anchor subjected to fire in case of concrete cone failure. Headed stud anchors were analyzed using the improved non-local microplane material model. The influence of heating of the speci- men was modeled by choosing specific material properties diffe- rent temperature layers. The development of the failure cone was simulated for fasteners with four embedment depths under normal conditions and in case of fire. The load-displacement behavior of the fastener, crack propagation and evolution of stress strain fields in the concrete during the loading process up to concrete cone failure are obtained from the analysis and by graphical postproces- sing. Conclusions from the comparison of simulations of fasteners under fire and in cold state are drawn.