Lateral Displacement in Walls with Openings: Importance of Floor System Stiffness
Publication: Practice Periodical on Structural Design and Construction
Volume 25, Issue 1
Abstract
Approximations obtained with the equivalent frame method and the equivalent shear-connection method to assess the elastic average lateral displacement profiles of walls with symmetric and asymmetric openings are compared to results obtained with the finite-element method using reasonably fine meshes. Multistory walls were studied and the contribution of slabs in the lateral stiffness was considered through an equivalent flange, as recommended in several building codes. Different stiffnesses were considered for the walls and the slabs. From the obtained results it is confirmed that approximations obtained with the studied methods increase as the number of stories of the wall increases, and that they are reasonable for an equivalent opening eccentricity parameter up to 40%. Slab stiffness had a reduced impact on the studied walls with openings, but it was important for low-rise walls, impacting more average lateral displacements of walls when they are more flexible and when openings are asymmetric.
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Acknowledgments
The MSc. fellowship granted to the second author by the National Science and Technology Council of Mexico (Conacyt) is gratefully acknowledged.
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Published In
Practice Periodical on Structural Design and Construction
Volume 25 • Issue 1 • February 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Apr 19, 2019
Accepted: Aug 26, 2019
Published online: Oct 25, 2019
Published in print: Feb 1, 2020
Discussion open until: Mar 25, 2020
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