Influence of stud size and stud strength of smaller spaced grouped arrangement of headed stud connectors on shear strength behavior and evaluation of shear strength of slabs

One of the possibilities of the efficient connection of steel-concrete composite structures is the grouped arrangement of headed stud connectors. An analytical study of the smaller spaced grouped arrangement of headed stud connectors on stud size and on stud strength is carried out and the influence of these parameters on the shear strength is investigated on the basis of the failure mode. Moreover, an estimation method of the shear strength of headed stud connectors allowing for the influence of stud size, stud strength, concrete strength, and grouped arrangement is proposed and the shear strength of the slabs close to the grouped arrangement of headed stud connectors is evaluated.