Typical Exterior Wall

The rigidity of the exterior wall is based on the height of the wall below the rigid mezzanine diaphragm.

The walls are assumed to act as separate units between control joints. The wall is symmetric about the

control joint, therefore, the rigidity of the cross-hatched portion of the wall is used for both wall areas.

Recommended control joint spacing is taken from Table 4-1 of TM 5-809-3. All of the CMU shear walls

have horizontal joint reinforcement of 2-#9 wires at every other course (16"). The recommended

maximum ratio of panel length to wall height is 3 with a maximum spacing of 24' The exterior walls have

.

a 10'unsupported height; 3 x 10 = 30 > 24'Use 24'

.

1 inch = 25.4 mm

1 foot = 0.305m

Deflection of solid wall ABCD:

∆ c( 10.ft ,20.5.ft )

∆ abcd

∆ abcd = 0.00026 in

Subtract strip BC:

5

∆ bc ∆ f( 4.ft ,20.5.ft )

∆ bc = 7.8829 10

in

∆

∆ abcd

∆ bc

∆ = 0.00018 in

Add back in piers B & C

1

R f( 4.ft ,9.33.ft )

R b = 5509.26578

Rb

in

1

R f( 4.ft ,5.17.ft )

R c = 2700.94107

Rc

in

1

∆ bc

∆ bc = 0.00012 in

Rb

Rc

∆ abcd

∆

∆ bc

∆ abcd = 0.0003 in

1.kip

R wall

∆ abcd

kip

R wall = 3340.95897

in

2.R wall

R total

Add the two wall segments

1 kip

R total = 6681.91794

This value is kips per inch, (6682 kips / in)

in

KN

R total = 1170.15584

mm

H1-19

Integrated Publishing, Inc. |