Combined Stress Behavior of Structural Glazing Joints

Abstract

Specimens simulating silicone bonded structural glazing joints were tested to failure under combinations of tensile and shear displacement. Tension, shear, and moment resultants in the joint specimens were monitored throughout each test. To account for glass edge rotation effects, joints were also tested in the same manner with the addition of a relatively large preset rotation. Tests were conducted at three joint depth‐to‐width ratios, spanning the range typically encountered in practice. The results of these tests were used to develop interaction relationships for ultimate strength and displacement. The interaction between nominal tensile and shear stresses at failure is elliptical. Differences between the three depth‐to‐width ratios, on a stress basis, were minor. The corresponding interaction for ultimate displacements is approximately linear. Glass edge rotation effects, within typical practical limits, are negligible. Measured bending moments remained small during all testing, apparently as a result of a moment balance between the tension and shear forces acting on the deformed specimen geometry.