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Assessment of Truss Plate Performance Model Applied to Southern Pine Truss Joints

机译：南方松桁架节点桁架板性能模型评估

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As part of the Canada-U.S.A. cooperative research program to model the stiffness and strength of residential roof systems, nonlinear model parameters were determined to characterize the lateral resistance of southern pine truss-plated joints. Four standard configurations were tested and used to predict joint performance at varying orientations of plate and grain to load. Two nonstandard configurations were tested to check the accuracy of the transformation methods. A regression analysis showed no consistent effect of modulus of elasticity on the parameter values. In the interpolation procedure for nonstandard configurations, Hankinson's interpolation with different exponents for each of the three parameter values (1.5 for K, 2 for M1, and 3 for M0) produced predicted curves that were closest to experimental data. The parameters obtained can be used to model the nonlinear performance of truss plate joints in full-scale roof system models.

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