DEVELOPMENT OF SEMI-RIGID TIMBER FRAME PRECEDED BY SHEAR YIELD AT PANEL ZONE OF BEAM-COLUMN CONNECTIONS

Physical behavior of panel zone joint metal between beams and columns

Abstract

When the ductile behavior is ensured by yielding at moment resistant joints in semi-rigid timber frame structures, the elastic stiffness decreases. When the yield strength of the moment resistant joints increases, the load carrying capacity of frames is determined by the shear failure at the panel zone in through columns. Furthermore, plastic deformation at the compression side in the moment resistant joints causes slip behavior, which reduces the amount of absorbed energy. In order to solve these problems, the structural system with the yielding mechanism which is made from the yielding at the panel zone joint metal is devised.