Analysis of the Behavior of Light Steel Structures Against Nonlinear Static Earthquakes

The purpose of this research was to analyze the behavior of light steel structures against nonlinear static earthquakes. Among the simplified nonlinear methods to be included in the next generation of regulations, nonlinear static analysis simply simulates the nonlinear behavior of structures, and as an efficient tool in seismic evaluation of buildings, it has attracted the attention of researchers. has done. Today, in order to make structures as strong as possible against earthquakes, various methods are used. One of the effective methods in improving the seismic behavior of structures is the use of light steel structural systems (LSF). These types of systems receive a small amount of lateral force during severe earthquakes, and due to two special properties, i.e. prefabricated structural members and suitable thermal insulation, this structural system is widely used. To be used in the developed countries of the world to build residential houses. Due to the fact that in the seismic design of these structures in the traditional way, the design of connections is not properly considered, in these structures, connections are considered as the main weak point of these structures during severe earthquakes. This research has studied the seismic behavior of the walls of the LSF system and its connections using the non-linear static analysis method in the ABAQUS finite element software. For this purpose, plans with the number of layers ۴, ۶ and ۸ have been selected and according to the ۲۸۰۰ code of Iran earthquake. A static equivalent was designed. Finally, in the case of the buildings designed according to the ۲۸۰۰ regulations, the research findings showed: Non-linear static analysis is not accurate enough in comparison with non-linear dynamic analysis.

کلیدواژه ها:

Light steel structures ، Earthquake ، Non-linear static earthquake ، Target displacement ، Capacity