Out-of-plane seismic behavior of cast-in-situ composite wall with metal tailing porous concrete

The out-of-plane seismic behavior of infilled walls has attracted increasing attention in recent years. As a newly-developed infilled wall, the cast-in-situ composite wall with the metal tailing porous concrete (CCWMTPC) possesses better thermal performance than the conventional masonry infilled walls. In this article, the out-of-plane seismic behavior of CCWMTPC is investigated by a series of shaking table tests. The specimen includes a steel frame with two infilled CCWMTPCs. With increase of the peak ground accelerations of four different input excitations, the peak out-of-plane accelerations and peak relative displacements measured at the mid-height and top of the CCWMTPCs exhibited linear response. The CCWMTPCs were not damaged. The experimental results revealed that the CCWMTPCs were still within their elastic state following the input excitations. Subsequently, the specimen was excited harmonically by the sine-waves until some level of damage was observed. A numerical analysis by the finite elements was performed in order to evaluate the experimental results and to compare the behavior of the CCWMTPC with the conventional masonry infilled walls. Results indicated that the out-of-plane performance of CCWMTPC under input excitations is better than their masonry counterparts.