RESTORING FORCE CHARACTERISTICS OF ULTRA-HIGH-STRENGTH SHEAR WALLS

A high-rise building system with reinforced concrete shear walls makes flexible planning possible, since the shear wall can bear most of seismic force and relieve the load of columns. Lateral and axial loading tests on the reinforced concrete shear wall with 120N/mm2 compressive strength concrete had been conducted. The test results reveal that its structural performance is greatly affected by axial compression behavior of the local compression zone in the shear wall. 3D frame analysis is a valuable method to estimate the earthquake response of high-rise buildings. In this paper, 3D analytical models of the shear walls with ultra-high-strength concrete have been investigated, which can represent its compressive failure.