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Ultimate Strength of Masonry Shear Walls: Predictions VS Test Results.

Ultimate Strength of Masonry Shear Walls: Predictions
VS Test Results.
(2012 K)

Fattal, S. G.; Todd, D. R.

NISTIR 4633; 46 p. October 1991.

### Available from:

National Technical Information Service

Order number: PB92-116342

### Keywords:

masonry; predicted strength; walls; reinforced walls;
shear strength; shear walls; test strewngth; ultimate
load; shear stress

### Abstract:

*
This study compares the ability of four different
equations to predict the ultimate shear stress in
masonry walls failing in shear. Experimental data on
fully-grouted reinforced shear walls from four different
sources are compared with the predictions from the four
equations. Wall characteristics from 62 test specimens
were used as input to the four predictive equations.
The ultimate strength predictions were then compared to
the actual measured strength of the 62 test walls. Two
of the equations (the existing Uniform Building Code
equation for shear strength of masonry walls and the
Architectural Institute of Japan's equation for
predicting the shear strength of reinforced concrete
shear walls) were found to be inadequate for the
prediction of ultimate shear strength of masonry walls.
An equation proposed by Shing et al. was found to
predict shear strength well for only limited ranges of
variables, primarily because excessive weight is given
to the contributions of horizontal reinforcement to
strength. An equation proposed by Matsumura was found
to be the best predictor of the four equations examined,
but it lacks the consistency needed to use it as a basis
for design. The conclusions drawn from the present
study indicate the possibility of developing reliable
predictive formulations using both rational analysis and
an empirical approach.
*