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A platform for research: civil engineering, architecture and urbanism
Cyclic behavior of moment frames with conventional or slit Infills
Abstract This paper presents the results of a study to investigate the effects of conventional and slit shear infills on behavior, of steel frames when subjected to cyclic loading. Three structural specimens of steel moment frames with and without infill webs have been tested. The slits in slit shear wall specimen have had a new parabolic shape. Initiation of damage and fracture in these systems have also been studied. Ductile damage parameters of ISO S235 steel, used in the specimens, have been determined using tensile tests. Numerical models of tested specimens have confirmed the application of these damage parameters to simulate experimental results. Based on the results of experimental study, seismic characteristics of a conventional steel moment frame are compared with those with steel plate shear wall and steel slit shear wall using finite element modeling of ductile damage. The results confirm desirable performance of steel plates shear walls, but show that steel slit shear walls, with parabolic shape slits, behave in a more ductile manner in comparison with steel plate shear walls and offer more desirable characteristics in comparison with steel moment frame.
Graphical abstract Display Omitted
Highlights The effects of two types of infills on behavior of steel frame have been studied. Three moment frame specimens with or without steel infills have been tested. FE modeling of tested specimens including ductile damage has been carried out. Seismic characteristics of SPSW, slit shear wall and moment frame are compared. Behavior of frames with parabolic shape slit plate infill is found to be desirable.
Cyclic behavior of moment frames with conventional or slit Infills
Abstract This paper presents the results of a study to investigate the effects of conventional and slit shear infills on behavior, of steel frames when subjected to cyclic loading. Three structural specimens of steel moment frames with and without infill webs have been tested. The slits in slit shear wall specimen have had a new parabolic shape. Initiation of damage and fracture in these systems have also been studied. Ductile damage parameters of ISO S235 steel, used in the specimens, have been determined using tensile tests. Numerical models of tested specimens have confirmed the application of these damage parameters to simulate experimental results. Based on the results of experimental study, seismic characteristics of a conventional steel moment frame are compared with those with steel plate shear wall and steel slit shear wall using finite element modeling of ductile damage. The results confirm desirable performance of steel plates shear walls, but show that steel slit shear walls, with parabolic shape slits, behave in a more ductile manner in comparison with steel plate shear walls and offer more desirable characteristics in comparison with steel moment frame.
Graphical abstract Display Omitted
Highlights The effects of two types of infills on behavior of steel frame have been studied. Three moment frame specimens with or without steel infills have been tested. FE modeling of tested specimens including ductile damage has been carried out. Seismic characteristics of SPSW, slit shear wall and moment frame are compared. Behavior of frames with parabolic shape slit plate infill is found to be desirable.
Cyclic behavior of moment frames with conventional or slit Infills
Ahmadi, Zahra (author) / Aghakouchak, Ali Akbar (author) / Mirghaderi, Seyyed Rasoul (author)
2020-12-15
Article (Journal)
Electronic Resource
English
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