Presented herein are seven generalized analytical connection models capable of generating accurate moment rotation curves for popular partially restrained (PR) connections based upon the geometric and strength parameters of the connection elements (or segments). The strength and force-deformation properties were derived from laboratory tests which included bolts in single and double shear with plates of various thicknesses, and bolted or welded framing angles in tension, compression, and shear. Using force-deformation data from these tests of connection elements, the PR connections were analytically modeled to obtain moment rotation curves that were then compared with full scale test results. A personal computer based program was written to validate .the derived curves for a wide variety of PR connections. In general, very good to excellent comparisons were found for both composite and noncomposite construction. The connection types include single and double framing angles, top and seat angles, end shear plates, single plates, and combinations of these.

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