T-brace design for MPC wood truss webs

摘要

T-bracing is a prescriptive construction practice to reinforce compression web members of metal-plate-connected wood trusses. However, a rational analysis and design method for T-braced web members has not been published. Reinforcement of the truss web with a brace increases the effective stiffiness of the composite section, and results in an increased axial load capacity of the web. Based on laboratory tests, the increase in stiffness of a T-braced 2 by 4 web member was documented and a design method for T-braced truss webs was proposed.