RAM Structural System Help

Connector Spacing for Double Angles

For Double Angles in compression, the spacing of intermediate connectors used in the calculation double angle compression capacity is based on the requirements of E6.2 Dimensional Requirements which indicates "…connected to one another at intervals, a, such that the effective slenderness ratio Ka/ri of each of the single angles, between fasteners, does not exceed three-fourths times the governing (largest) slenderness ratio of the built-up member." The spacing calculated by this method is adjusted to ensure equal spacing along the member length. For example, for a member of length 15 feet, if the minimum connector spacing is calculated to be 6 feet to meet E6.2, the program will identify that to meet this requirement two connectors are needed, and spacing them evenly along the member results in a 5ft distance between connectors. This modified spacing is reported in the Member Code Check report and used for the member design.