Abstract:The failure and collapse of reinforced concrete building structures during earthquakes is a key factor in earthquake disasters. The effective evaluation of the seismic collapse-resistant capacity of a building structure is a vital component of building structure design, and also serves as the basis for improving the seismic performance and reinforcement of building structures. In this paper, we propose the extreme value of the deformation index, the failure judgment criterion, and the collapse limit state. Based on these factors, we can obtain evaluation criteria such as the collapse reserve coefficient, collapse vulnerability, structure integral superstrength coefficient, and structure integral ductility coefficient. We use the pushover analysis method to select the corresponding seismic waves. Given the influence of beam-to-column linear stiffness ratio on the anti-collapse capacity of a building structure, we can analyze the vulnerability of the building structure. From our study results, we can draw the following conclusions:equal-span building structures are more resistant to earthquake damage and collapse; the bottom layer of the building structure is weakest; and the higher is the COF value, the more easily a structure will collapse.
