ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAGAHAIAJAKALAMANAOAPAQARASATAUAVAWAXAYAZBABBBCBDBEBFBGBHBIBJBKBLBMBNBOBPBQBRBSBTBU
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Daniel
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PROJECT :
PAGE :
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Tian Li
CLIENT :
DESIGN BY :
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JOB NO. :
DATE :
REVIEW BY :
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Masonry Wall Design at Horizontal Bending, Based on ACI 530-99
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INPUT DATA & DESIGN SUMMARY
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SPECIAL INSPECTION ( 0=NO, 1=YES )
0No
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TYPE OF MASONRY ( 1=CMU, 2=BRICK )
1CMU
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MASONRY STRENGTH
fm'=1.5ksi
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REBAR YIELD STRESS
fy=60ksi
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SERVICE LATERAL LOAD
w=45psf
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THICKNESS OF WALL
t=8in
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WALL HEIGHT
h=24ft
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PILASTER SPACING
L=10ft
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PILASTER SIZE
c1=24in
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c2=24in
[THE WALL DESIGN IS ADEQUATE.]
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WALL HORIZ. REINF. (Asv)
1#4@48
in o.c. (at middle)
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ANALYSIS
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DESIGN CRITERIA
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1. Pilaster spacing less than one half the unsupported vertical span of out-of-plane wall. (MDG-3,page 11-8)
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L =10ft<0.5 h =12ft
[Satisfactory]
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2. Pilaster stiffness greater than that the tributary area of wall. (CBC 2106A.1.7)
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beff = c1 + 12 t =
120
in, (ACI 530, 1.7.5.1 & 1.9.4.2.3)
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y =7.4in
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E Ipilaster =
52809E
,(ACI 530, 1.9.2)
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E Iwall = 4096E
,(ACI 530, 1.9.2)
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E Ipilaster
>
E Iwall
[Satisfactory]
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CHECK WALL HORIZONTAL BENDING CAPACITY
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d=3.82
in, effective depth
Em =1350ksi
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bw=12.00inEs =29000ksi
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te=7.63
in, effective thickness
n=21.48
, modular ratio
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As=0.05
in2 / ft
r=0.0011
, reinforcement ratio
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SF=0.667
, allowable stress factor
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0.1944230437
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330psi32000psi
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437
ft-lbs/ft, (MDG-3, page 11-3)
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360
ft-lbs/ft
<
Mallowable
[Satisfactory]
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CHECK SHEAR CAPACITY
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26psi>
fv= 0.5 (L - c1) w / (bwd) =
4psi
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[Satisfactory]
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Techincal References:
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1. "Masonry Designers' Guide, Third Edition" (MDG-3), The Masonry Society, 2001.
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LICENSE NUMBER: ??????
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www.Engineering-International.com
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R E B A R D A T A
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BAR DIAAs
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#insq in
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30.3750.110
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40.5000.200
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50.6250.310
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60.7500.440