EVALUATION METHOD OF SLIP PHENOMENA FOR SHEAR WALLS WITH HING ISOLATED STRUCTURAL SYSTEM

The test results of the hinge isolated shear walls (called as HISS RC walls) showed slip phenomena at the wall in the large deformation range after flexural yielding. If their slip phenomena had been restricted, they, obviously, could have had stable energy absorption capacity. This paper reports the details of slip phenomena in terms of load-displacement relationships and vertical displacements at the wall bottom. Considering dowel behavior, the slip stiffness at the load zero can be modeled using pile registration formulae. The ratio of the flexural stiffness to the slip stiffness is an effective index to assess the effect of slip phenomena after flexural yielding on energy absorption characteristics.