Special Issue “Recent Achievements in Endurance Time Method”

Special Issue Information
One of the major natural hazards threatening urban communities is the forces that are originated from moderate to severe earthquakes. In high seismic regions such as Iran, the seismic performance of structures subjected to earthquakes should be carefully considered in the initial design stage of new buildings or in the projects pertinent to the rehabilitation of existing structures. There are several methods for the performance assessment of structures that may be exposed to earthquake excitations. These approaches can include nonlinear static analysis, linear dynamic analysis, and nonlinear dynamic analysis. Among these methods, nonlinear dynamic analysis is superior because it considers both nonlinearities in materials and geometry. With the use of new materials and having a more complex plan for the new buildings, there are several situations in which the execution of a nonlinear dynamic analysis cannot be avoided. However, high computational time and the problems with record selection are obstacles for the widespread use of this method in routine engineering projects. Endurance time method (ET) which is a time history dynamic analysis is devised to overcome difficulties associated with conventional nonlinear time history analysis while simultaneously maintain its advantages. Since the advent of this method, several pieces of research have been devoted to working on different aspects of the ET method. These works, including generating more accurate endurance time excitations and developing different applications of the ET method, facilitate the use of the ET method in practice. Researches in this area are ongoing. This issue will focus on recent achievements in the development of the ET method. 
Aim and scope
Through organizing this issue, new achievements by researchers in the ET method is to be demonstrated. Technical note, and research paper on the ET method are welcome in this issue. Generating new endurance time excitations and developing different applications of the ET method is within the scope of this issue.    
Endurance Time Method
Nonlinear Dynamic Analysis
Performance-Based Design
Life Cycles Cost

Guest Editor: Professor. Homayoon Estekanchi
Affiliations: Department of Civil Engineering, Sharif