Lateral Load Analysis of Stand-off Anchor Bolt Connections Using the Load-Distribution Method

Abstract

AbstractA comprehensive method was derived for the analysis of stand-off anchor bolt connections with various stand-off distances that are subjected to lateral loading. The procedure applied the load-distribution method that is commonly used for shear wall analysis in buildings, and the base plate was treated as a rigid diaphragm. The lateral load resistance provided by each anchor bolt within the anchor bolt group was calculated on the basis of its lateral stiffness, which was defined as a function of the stand-off distance. Close agreement with finite-element analysis solutions for various stand-off distance conditions was found. An irregular distribution of lateral resistive forces within the anchor bolt group was found for connections with uneven stand-off distances compared to the uniform distribution found for connections with even stand-off distances. The intensity of lateral resistive forces provided by the anchor bolts was found to be impacted by the proximity of the individual anchor bolt to the...