Plastic Analysis of Pinned-base Haunched Gable Frames

The plastic analysis of pinned-base haunched gable frames, subjected to distributed vertical and horizontal loadings, has been carried out in a manner amenable to hand calculation. The analysis is based on the simple plastic theory and has resulted in analytical expressions for the plastic moment requirement of the rafter. The analysis is further facilitated by assembling the resulting expressions on non-dimensionalized charts. The method of analysis, a typical set of charts and an example demonstrating the method are presented in this paper.