Title:
Analytical and Experimental Studies of a Shearwall Stair Shaft
Author(s):
L. Bogue Sandberg and Fred W. Beaufait
Publication:
Symposium Paper
Volume:
63
Issue:
Appears on pages(s):
609-622
Keywords:
deflection; deformation; earthquake resistant structures; elastic analysis; finite element analysis; lateral pressure; loads (forces); models; multistory buildings; shearwalls; stairways; stiffness; stresses; structural analysis; torsion.
DOI:
10.14359/6667
Date:
8/1/1980
Abstract:
The results of a study of the behavior of a shear wall stair shaft are summarized. Comparisons are made between deflections of a 1/24 scale Plexiglas model and predicted deflections from beam theory and finite element analyses. Both lateral loads and torsion are considered. Stair system stresses from a finite element analysis of a full scale, concrete prototype of the model are summarized. It is concluded that beam theory tends to over-estimate shear wall stiffness, and than an effort must be made to prevent damage to the stair system from severe shear wall deformations.