Concrete fracture failure is often observed at interaction zones between steel and concrete, including those in hybrid structure connections, shear studs in composite beams, and steel fasteners in concrete. Improvement in intrinsic ductility of the concrete material should suppress such failure mode and enhance the overall structural performance. In this paper, we introduce and experimentally d...

In order to study the mechanical properties of stud connectors in lightweight aggregate concrete (LWAC), finite element software ABAQUS was used establish push test models ordinary and LWAC, respectively. Through parameter analysis 21 models, influence different parameters on shear performance LWAC connector studied. Among them, strength, diameter strength have strong effects. Compared with con...

Using ultra-high performance concrete (UHPC) as the pavement layer on orthotropic steel deck (OSD) can greatly enhance rigidity to solve fatigue cracking of and resulting damage layer. However, thin UHPC limits extensive use short stud connector. In this study, three types interfaces were designed by introducing different additives into epoxy matrix, shear properties each interface connector co...

An experimental study is presented on the effects of bolt-hole clearance on the load distribution in multi-bolt composite joints. Single-shear, three-bolt joints were studied. The specimens were manufactured from graphite/epoxy HTA/6376, with quasi-isotropic lay-ups. Protruding head bolts of 8 mm diameter and torqued to finger-tight conditions were used. Different combinations of clearance were...

This study examines the relationship between shear force and horizontal relative displacement of Lshape shear connector by means of beam type test method. An equation for maximum shear force of the specimen which takes into account the effects of size of the shear connector and the concrete strength was proposed. It was found that shear force-horizontal relative displacement relationship can be...

The performance of tapered iron bolt (TIB) shear connectors and their feasibility to be used in demountable composite beams are investigated this study. typical TIB connector consists six components, i.e., a connecting bolt, conical plug, top covering plate, fixing retaining washer inner sleeve. expected 1) reduce the initial slip between concrete slab steel beam, which generally exists for ste...