Headed studs are often used to facilitate composite actions between steel and concrete structures. In steel building structures, reinforced concrete walls are commonly used to ensure composite action to stiffen steel frames as a lateral resistance system against horizontal loads, such as earthquakes or wind. Such walls need to be anchored to the steel frame by headed studs, and these must be able to withstand shear and tension forces, as well as the interaction between these two. To design such anchors in concrete walls, it is necessary to describe experimentally their behaviour under monotonic and cyclic shear forces given that edge conditions and reinforcing details influence stud stiffness and strength.

As very few experimental studies have examined headed studs subjected to monotonic or cyclic shear with usual boundary effects in steel frames with reinforced infill walls, a new experimental test setup and test results are presented herein. Four tests on headed studs were carried out to describe the behaviour of headed studs under monotonic and cyclic shear loading, as well as to validate the new test setup.

This research shows that the behaviour of studs installed in infill walls without group effects are conservatively predicted by EC-4 and Makino’s formula under monotonic shear loading. Furthermore, a reduction factor of 0.70 is recommended to design studs subjected to cyclic shear forces.

带头螺栓通常用于促进钢结构与混凝土结构之间的复合作用。在钢结构建筑中，通常使用钢筋混凝土墙来确保复合作用，以增强钢框架的强度，作为抵抗水平载荷（例如地震或风）的侧向阻力系统。此类墙需要通过带头的螺柱锚固到钢架上，并且这些墙必须能够承受剪切力和拉力以及两者之间的相互作用。为了在混凝土墙中设计此类锚，考虑到边缘条件和加固细节会影响立柱的刚度和强度，有必要通过实验描述它们在单调和周期性剪切力下的行为。

由于极少的实验研究已经检查了带有加强型填充墙的钢框架中承受单调或循环剪力并具有通常边界效应的带头螺栓，因此本文介绍了一种新的实验测试装置和测试结果。对带头螺栓进行了四个测试，以描述带头螺栓在单调和周期性剪切载荷下的行为，并验证了新的测试设置。

这项研究表明，EC-4和Makino公式在单调剪切载荷作用下，保守地预测了无群效应的安装在填充墙中的螺柱的行为。此外，对于设计承受周期性剪力的螺柱，建议减小系数0.70。