Seismic Energy Demands of Inverted V-Braced Frames

Abstract

It is known that structures act a nonlinear movement when strong ground motion cycle begins. Energy concept has been progressive tool to evaluate the structural system associated with performance-based design. Energy-based design can be expressed as the balance of energy input and the energy dissipation capacity of the structure. Researches that have been usually done for single degree of freedom system are needed for multi degree of freedom systems (MDOFs) in framework of the energy-based design methodology. In this paper, energy parameters in term of total energy input and hysteretic energy are evaluated and observed changes in height of the buildings for the energy concept. Structures are selected to demonstrate low and medium-rise steel inverted V-braced frames examined in linear and nonlinear dynamic time history analysis. The results are developed to obtain seismic energy demands.