Numerical analysis of seismic performance and structural system of high rise steel structures

This paper investigates the numerical analysis of seismic performance and structural systems of high rise steel structures. Steel-concrete composite structures in high-rise and super high-rise buildings in China have been increasingly widely used, but the corresponding design specifications are still not perfect and theoretical research is also lagging behind practice. Here modal analysis and time history analysis were performed on experimental frames. Using Sap2000, the analytical models were verified. Computed results were obtained and analyzed for: i) the dynamic responses of displacement, ii) acceleration and iii) base shear forces under: a) different earthquake waves with the same maximum acceleration, and b) the same earthquake wave with different maximum accelerations. Referring to the current codes, five performance levels were put forward for SRC frame with special-shaped columns under: i) full operation, ii) temporary operation, iii) reparable operation, iv) life safety and v) collapse prevention. © 2016, UK Simulation Society. All rights reserved.