Direct shear test and cyclic loading test for seismic capacity of dimension stone panel cladding with dowel pin connection

In this study, direct shear test and cyclic loading test were performed to investigate the seismic capacity of dimension stone cladding with pin connections. A total of 60 dowel pin connection specimens were tested under direct shear, and 12 panel specimens were tested under quasi-static cyclic lateral loading in the out-of-plane direction of the panel. The major test parameters were type of stone, drilled hole diameter for dowel pin connection, thickness of stone panel, and type of dowel pin. In the direct shear test of dowel pin connection, the tested peak strengths agreed with the results predicted by analogy to the breakout strength in ACI 318. However, the results of cyclic loading test showed that the shear strength of the dowel pin connector was decreased, due to the effect of flexural action under cyclic loading of the panel. On the basis of the direct shear test results and panel test, a stone breakout strength was proposed considering the effect of flexural moment. On the other hand, the flexural strength of the panel was accurately predicted by the cracking moment based on the fracture modulus of stone.