%0 Journal Article
%T Experimental study on punching shear behavior of hollow floor slab
%A Hongmei Ni
%A Longji Dang
%A Qianqian Li
%A Rui Pang
%A Shuting Liang
%J Advances in Structural Engineering
%@ 2048-4011
%D 2019
%R 10.1177/1369433218819565
%X This article presents an experimental study on hollow floor slab-column-reinforced connections, which are enhanced by installing locally solid zone of slab around the column and hidden beam in the floor. To investigate the punching-shear behavior of hollow floor slab-column-reinforced connections, six hollow floor slab-column-reinforced connections under vertical load were conducted on three types of connections with different thickness, namely, two hollow floor slab-column-reinforced connections without punching component, two hollow floor slab-column-reinforced connections with bent-up steel bars, and two hollow floor slab-column-reinforced connections with welding section steel cross bridging. Meanwhile, the strength, stiffness, failure mode, and ductility of hollow floor slab-column-reinforced connections with punching components were obtained and compared with the hollow floor slab-column-reinforced connections without punching component. The results showed that hollow floor slab-column-reinforced connections had the double failure characteristics including punching shear and flexural failure, and flexural failure was the main failure mode as a result of installing hidden beam. The hollow floor slab-column-reinforced connections with punching components exhibited higher initial stiffness and higher loading capacity than hollow floor slab-column-reinforced connections without punching components, but welding section steel cross bridging have a better on improving the connections¡¯ punching-shear capacity than bent-up steel bars
%K failure mode
%K hollow floor
%K punching component
%K punching-shear behavior
%K slab-column connection
%U https://journals.sagepub.com/doi/full/10.1177/1369433218819565