Articles liés à Built-Up Battened Steel Columns Under Cyclic Lateral...

Built-Up Battened Steel Columns Under Cyclic Lateral Loadings: - A Study on Batten Detailing - Couverture souple

Sahoo, Dipti Ranjan; Rai, Durgesh C.

 
9783846522851: Built-Up Battened Steel Columns Under Cyclic Lateral Loadings: - A Study on Batten Detailing
Couverture souple
ISBN 10 : 3846522856 ISBN 13 : 9783846522851
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

Built-up steel columns with battens at regular interval along their height are suffered from compound buckling and large shear deformations under axial loads. During seismic overloads, the local instability of components prevent column sections to develop their full plastic moment carrying capacities and to allow the sufficient rotations required for expected ductility demands. In the present study, the double-channel battened members are subjected to constant axial compression and gradually increasing reversed cyclic lateral load. A specimen of double-channel battened column designed as per code provisions failed due to lateral instability prior to reaching its full plastic moment carrying capacity. The degradation of flexural strength and stiffness started from the onset of local buckling of flanges and webs of column section.Two modified detailing of battens are studied. Based on both analytical and experimental investigations, it is concluded that the seismic performance of battened double-channel beam-columns can be improved by closer spacing of battens in the plastic hinge region and further improvements can be obtained by “boxing” the plastic hinge regions.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Built-up steel columns with battens at regular interval along their height are suffered from compound buckling and large shear deformations under axial loads. During seismic overloads, the local instability of components prevent column sections to develop their full plastic moment carrying capacities and to allow the sufficient rotations required for expected ductility demands. In the present study, the double-channel battened members are subjected to constant axial compression and gradually increasing reversed cyclic lateral load. A specimen of double-channel battened column designed as per code provisions failed due to lateral instability prior to reaching its full plastic moment carrying capacity. The degradation of flexural strength and stiffness started from the onset of local buckling of flanges and webs of column section.Two modified detailing of battens are studied. Based on both analytical and experimental investigations, it is concluded that the seismic performance of battened double-channel beam-columns can be improved by closer spacing of battens in the plastic hinge region and further improvements can be obtained by “boxing” the plastic hinge regions.

Biographie de l'auteur

Dr. Dipti Ranjan Sahoo is currently an Assistant Professor at Indian Institute of Technology (IIT) Delhi, India. He received his PhD in Civil Engineering from IIT Kanpur, India. His research interests are seismic strengthening of steel and RC structures, performance-based design and large-scale testing of structural components.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3846522856
ISBN 13 
9783846522851
Reliure
Broché
Nombre de pages
144
Coordonnées du fabricant
non disponible
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