Blast resistance property of concrete shear wall with single-side steel plate

As a lateral resisting component, the single-side steel plate shear wall (SPSW) has a favorable capacity of energy dissipation and impact resistance, it has been gradually applied into the anti-seismic design of building and the anti-explosion design of protective structures. In this paper, three specimens of reinforced concrete slab (RCS), side steel plate shear wall slab (SSPSWS) and center steel plate shear wall slab (CSPWS) were designed and casted, the contact explosion experiment of SPSW were carried out in the field, and the nonlinear program LS-DYNA was used to establish finite model of SPSWS specimens, the dynamic response, failure models and anti-blast capacity of SPSWs subjected to contact explosion loads were compared and analyzed. The experimental results and numerical analysis show that there are three types of failure models occurred in the SPSWs, The midspan concrete of RCS occurrs penetration failure, and the reinforcement bar of RCS had larger bending deformation; while the concrete and steel plate of SSPSWS separate with the state of shear studs pulling out, losting its integrity and resistance capacity. The specimen of CSPWS is failure under upper concrete crushing, but the CSPWS specimen is still integrity and bearing capacity with strong connection performance. The midspan deflection of concrete slab and the splashing distance of concrete fragments are small. In addition, the capacity of bonding performance between concrete and steel plate of SSPSWS and CSPWS can be enhanced through equipping with reinforcing fabric, it can effectively reduce the cracking and peeling of the upper and lower layers of concrete and improve the integrity and anti-explosion capacity either .