Nonlinear Time history Analysis of High-rise Structure with Dual Lateral System Consisting of Steel Moment Frame and RC Core Wall

This report focuses on seismic responses of a ۳۰-story high-rise building with a dual lateral system of RC core shear wall and steel moment frame. To assess the seismic performance of the building, a nonlinear finite element model was built by using the OpenSEES program. This three-dimensional model was created by using the fiber-beamsfor members and multi-layer shell elements for RC core walls. The numerical simulation has been examined under the thirteen sets of strong ground motion records which are scaled with the design and maximum seismic levels, DBE and MCE level hazards respectively. In consequence, the desirable performance of high-rise steel moment frame building with RC shear core consisting of coupling beams and rectangular shear walls was shown. The outcome of nonlinear time history analyses reports the acceptable seismic performance of tall buildings designed. Results showed that maximum inter-story drift was significantly lower than allowable drift.

Keywords:

High-rise building , RC shear core , nonlinear time history analysis , seismic performance