Lateral Stiffness of Brick Masonry Infilled Plane Frames
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Volume 129, Issue 8
Abstract
In a companion paper, a new finite element technique for the analysis of brickwork infilled plane frames under lateral loads has been presented. In the present paper, the influence of the masonry infill panel opening in the reduction of the infilled frames stiffness has been investigated by means of this technique. A parametric study has been carried out using as parameters the position and the percentage of the masonry infill panel opening for the case of one-story one-bay infilled frame. The investigation has been extended to the case of multistory, fully or partially infilled frames. In particular, the redistribution of action effects of infilled frames under lateral loads has been studied. It is shown that the redistribution of shear force is critically influenced by the presence and continuity of infill panels. The presence of infills leads, in general, to decreased shear forces on the frame columns. However, in the case of an infilled frame with a soft ground story, the shear forces acting on columns are considerably higher than those obtained from the analysis of the bare frame.
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Published In
Journal of Structural Engineering
Volume 129 • Issue 8 • August 2003
Pages: 1071 - 1079
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jul 3, 2001
Accepted: May 22, 2002
Published online: Jul 15, 2003
Published in print: Aug 2003
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