ANALYSIS METHOD OF FRAME-SHEAR WALL STRUCTURES WITH CONSIDERING SHEAR DEFORMATION EFFECT OF SHEAR WALL

Considering the shear deformation of shear wall and the rigid joint of connecting beam,based on Timoshenko’s two generalized displacements beam theory,an analytical method was presented for frame-shear wall structures.When the constrained flexural stiffness of connecting beam was zero,the fixed system was degenerated into a hinged system,when the shear stiffness of shear wall tended into infinite,the flexural-shear type shear wall was transformed into the flexural type shear wall without the shear deformation effects,so the present method can be used to analyze various models.The deflection,slope,bending moment and shear force of shear wall,shear force of frame were derived under triangularly distributing load,uniformly distributing load and concentrated load on the top.Computational formulae show that the conclusion that “generalized shear force proportioned to the push-resistance stiffness of frame and the constrained flexural stiffness of connecting beam” does not exist for frame-shear wall that takes the shear deformation effects of shear wall into consideration.The distributions of deformations and internal forces of frame-shear wall are discussed through examples.Some conclusions are summarized that the constrained flexural stiffness of connecting beam dramatically affects the distributions of deformations and internal forces of frame-shear wall.There is a sensitive region of shear wall’s shear stiffness for the distributions of deformations and internal forces of frame-shear wall.