OpenSees is an object-oriented programming tool for creating finite element solutions to model the behavior of geotechnical and structural systems. This application was developed using the programming languages of Python, c++, and Tcl. Since a suitable solution may greatly alter the structural fire reactions, it must be considered when modeling the reaction of tall structures to flames, particularly multifloored fires. Given the difficulty of current modeling methods, the purpose of this work is to use the open-source software "OpenSees for fire" to conduct a thorough analysis of the behavior of buildings and their components during a fire. The findings of utilizing the developed software to overcome a variety of standard issues and to simulate actual fire testing can be presented in this article