Page 442 - Design of Reinforced Masonry Structures
P. 442
7.4 CHAPTER SEVEN
Shear from
diaphragm above
Inertia force
from wall
Shear wall
Floor joist
Sill plate
Foundation
Ground Shear connection at top
motion of floor joist provides
resistance for diaphragm
and shear wall forces.
FIGURE 7.5 Inertial forces and resistance of walls parallel to direction of ground
motion [7.3].
d
d
h
d h
h
h/d < 0.25 0.25 < h/d < 4.0 h/d > 4
(a) Shear stiffness (b) Both shear stiffness (b) Bending stiffness
predominates and bending stiffness predominates
are important
FIGURE 7.6 Aspect ratio and stiffness of shear walls [7.4].
