ABSTRACT
Shear lugs are frequently used in structures placed in seismic areas, where the lateral seismic loads require transferring large horizontal loads to foundations. Figure 1 shows a cross type shear lug, they were thought to provide strength to any direction of the horizontal loads first. Nevertheless, there are only a few studies related to this matter, and the present design is based on methodologies coming from the engineering experience, and some basic theoretical principles adapted for the design of these shear lugs devices. This research work, points to evaluate the usual design conditions for cross type shear lugs. It also intends to improve the design method so it should guarantee a better seismic behavior of these elements. In order to validate the proposal, an experimental testing program was prepared, including different cross type sections shear lugs. They were selected to produce both type of failure modes, either in concrete or in the steel lug.
