Title:
Deflection of Reinforced Masonry Members
Author(s):
Richard T. Horton and Maher K. Tadros
Publication:
Structural Journal
Volume:
87
Issue:
4
Appears on pages(s):
453-463
Keywords:
cracking (fracturing); deflection; flexural strength; loads (forces); masonry; masonry walls; modulus of electricity; moments of inertia; reinforced masonry; stiffness; tension; Structural Research
DOI:
10.14359/2774
Date:
7/1/1990
Abstract:
This paper deals with deflection of single-wythe reinforced masonry flexural members subject to out-of-plane loads. The theory of deflection, which is applicable to both concrete and masonry, is presented. Reduction of stiffness due to cracking under service loads is taken into account. Also shown is how "tension stiffening" affects deflection. Tension stiffening is caused by uncracked masonry in the tension zone. Material properties needed for deflection analysis are reviewed, and available methods for their determination are presented. A realistic estimation of these properties is essential to predict accurate masonry member deflections. Six methods for prediction of deflection, including one proposed by the authors, are presented and compared. All six methods were correlated with results of experiments performed by the authors and by other investigators. Considerable deviation between predicted and actual deflections are shown to exist.