Static behavior of stud shear connectors in elastic concrete–steel composite beams

摘要: Abstract Elastic concrete was first introduced into steel–concrete composite beams due to its superior deformability. The static behavior of stud shear connectors embedded in elastic is studied this paper. Eighteen push-out tests were conducted evaluate the load-slip behavior, bearing capacity and ultimate slip studs. Four different rubber contents, 0%, 5%, 10% 15% taken consideration. Test results show that ductility improves significantly with increasing content. Especially, when content reaches 10%, has relatively high capacity, better deformation ductility. In specimens 5% concrete, shows a more ductile lower compressive strength diameter little influence on stiffness equations provided by AASHTO LRFD, Eurocode-4 GB50017-2003 can still apply studs concrete. Compared experimentally obtained capacities, LRFD confirmed be closest one.