Steel Special Moment Frames (SMFs) are favored seismic force-resisting systems due to their architectural flexibility and high ductility. While shallow columns (section depth less than 356 mm) were commonly used in these before the Northridge earthquake, deeper greater have become more popular recent years meet code-enforced story drift requirements economically. However, limited research exist...

The paper discusses how joint damage and deterioration affect the seismic response of existing reinforced concrete frames with sub-standard beam–column joints. available simplified modeling techniques are critically reviewed to propose a robust, yet computationally efficient, technique for simulating nonlinear behavior substandard Improvements over models include simulation cyclic stiffness str...

Steel Plate Shear Wall (SPSW) is an emerging seismic load-resistant system that, compared to other systems, enjoys the advantages of stable ductile behavior, fewer detailing requirements, rapid constructability, and economy. American seismic provisions decree that a SPSW should be designed as a moment frame with a web infill plate. Specifically, in case of buildings taller than 160 ft, it decre...

A new method for seismic design of structures with the aim controlling earthquake damage to a prescribed level is presented in this paper. The specified special moment frame buildings vertical and horizontal regularity. main idea determining story drift correlation selected index value. For purpose, Park-Ang correlated maximum drift. Through performing several nonlinear dynamic analyses steel r...

The inter-story drift ratio (IDR) is a crucial parameter in structural health monitoring to judge the safety, stability, and serviceability of buildings. Real-time, continuous, widely applicable detection on IDRs essential. However, current methods present some challenges conducting such detection, including adverse effects from weather, requirement for large amounts space, fragile instruments....

introduction: wind erosion is one of the most important factors in desert environments. prevailing winds can shift sand dunes and affect their accumulation and morphology. also, wind regime determines the direction of sand dune mobility in different ways. therefore, the wind regime, frequency, direction and velocity are supposed to be the most important factors to form the morphology of sand du...