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Analytical Study of Reduced Beam Section Under Cyclic Behavior
Reduced beam section (RBS) is mostly used to relocate the plastic hinge to the other side of the beam column junction. As a result of minimizing the stress concentration over the column, the seismic impact on a structure is reduced. In addition, by enhancing the ductility of the beam, the use of RBS sections can improve seismic performance. It is recommended for welded joints since they are more prone to premature failure (Swati and Gaurang in Case Stud Struct Eng 1:26–31, 2014 [1]). A minor crack can lead to the formation of more cracks and the failure of the joint, as well as major column failure. According to the analyses, the cracking of the weld between the beam flange and the column face, which caused concentrated stresses in this area, resulting significant damage. Reduced beam section is a new approach being researched to lessen stress concentration at the column panel zone. To lower the cross-sectional area of the beam flange and therefore reduce stress concentration at the joints, several shapes cutouts are conceivable. Various arrangements of constant cut, tapered cut, radius cut, round, triangle, and elliptical cut are analyzed. By reducing the beam flange in different patterns and analyzing the cyclic behavior, a new form of reduced beam sections has been developed using ANSYS software, and an optimum shape has been determined that has the most advantage among all the possible shapes. The study’s findings revealed that RBS is more ductile and dissipates more energy than bolted connections and protects beam column joints from severe failure hence saves the overall structure.
Analytical Study of Reduced Beam Section Under Cyclic Behavior
Reduced beam section (RBS) is mostly used to relocate the plastic hinge to the other side of the beam column junction. As a result of minimizing the stress concentration over the column, the seismic impact on a structure is reduced. In addition, by enhancing the ductility of the beam, the use of RBS sections can improve seismic performance. It is recommended for welded joints since they are more prone to premature failure (Swati and Gaurang in Case Stud Struct Eng 1:26–31, 2014 [1]). A minor crack can lead to the formation of more cracks and the failure of the joint, as well as major column failure. According to the analyses, the cracking of the weld between the beam flange and the column face, which caused concentrated stresses in this area, resulting significant damage. Reduced beam section is a new approach being researched to lessen stress concentration at the column panel zone. To lower the cross-sectional area of the beam flange and therefore reduce stress concentration at the joints, several shapes cutouts are conceivable. Various arrangements of constant cut, tapered cut, radius cut, round, triangle, and elliptical cut are analyzed. By reducing the beam flange in different patterns and analyzing the cyclic behavior, a new form of reduced beam sections has been developed using ANSYS software, and an optimum shape has been determined that has the most advantage among all the possible shapes. The study’s findings revealed that RBS is more ductile and dissipates more energy than bolted connections and protects beam column joints from severe failure hence saves the overall structure.
Analytical Study of Reduced Beam Section Under Cyclic Behavior
Lecture Notes in Civil Engineering
Saha, Suman (editor) / Sajith, A. S. (editor) / Sahoo, Dipti Ranjan (editor) / Sarkar, Pradip (editor) / Jafla, T. K. (author) / Unni, Vishnu T. (author)
2022-10-05
14 pages
Article/Chapter (Book)
Electronic Resource
English
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