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The Eighth Asia-Pacific Conference on Wind Engineering,December 10–14, 2013, Chennai, India
A SEMI-EMPIRICAL QUASI-STEADY MODEL OF ALONGWINDDESIGN WIND LOADS FOR TALL BUILDINGS
1Professor of Civil Engineering, Tamkang University, Taipei, Taiwan, [email protected] Manager, CIAD Engineering, Taipei, Taiwan, [email protected]
3Research Assistant, WERC, Tamkang University, Taipei, Taiwan, [email protected]
ABSTRACT
Keywords: Alongwind, Design wind load, Wind tunnel test, Tall buildings
Introduction
Proc. of the 8th Asia-Pacific Conference on Wind Engineering – Nagesh R. Iyer, Prem Krishna, S. Selvi Rajan and P. Harikrishna (eds)Copyright c© 2013 APCWE-VIII. All rights reserved. Published by Research Publishing, Singapore. ISBN: 978-981-07-8011-1doi:10.3850/978-981-07-8012-8 174 853
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
Observations from Wind Tunnel Investigations
BL-A BL-B BL-C
H BD D/B
H BD
CDW CDL
D B BL-B
dwpw
z z
F zC z
U AdwF
pwz u z
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z UH
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z HUz
UH
854
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
UH Cpl zC’pl z
855
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
Rx,w x f Rx,l x f
f x UH
zR z z fCZ
N(f
Derivation of Design Wind Load
CDW CDL
CD
CW z UH
D H DW DL
zF z U B C C
H
B
D
W
W
F z t F z t F z t
F z t p x z t dx
F z t p x z t dx
ip x z t x z
DW H DW
zF z t U z u z t BC U u z t BC
H
H DLF z t U u z t C
D B Q H H DW DL
zF z U BI C C
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856
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
I2/3H Q
Q
Q
Q
Q.
Q
Hz
z
tFD
H
D DF t F z t z dz
H H
D D
D D D
S f S z z f z z dz dz
S f S f S f
H H
D H DW H u u z
B B
x
D H DW l H u u
z zS f U C BHI S z f S z f Co z f dz dz
H H H
Co x f dx dxB
S f U C C B H I S z f S z fH
H H
z
B B
x
z zCo z f dz dz
H H
Co x f dx dx N fB
Q BL-B
857
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
H H
D H DL H u u z
B B
x
z zS f U C BHI S z f S z f Co z f dz dz
H H H
Co x f dx dxB
Cox Cox
Coz NCox Cox N
z H
Cy
y
xx
H
xx
H
N f C
fC x xCo x f
U
fC x xCo x f
U
u u u H H uS z f z S f U I S f
fSu
H H
z z
H H
z z
H H
z z
B B
x x
z zJ f Co z f dz dz
H H H
z zJ f Co z f dz dz
H H H
z zJ f Co z f dz dz
H H H
J f Co x f dx dx JB
B B
x xf Co x f dx dxB
D H H
W z x W l z x l z x u
S f U BHI
C J f J f C C J f J f N f C J f J f S f
fR
R W z x W l z x l z xf C J f J f C C J f J f N f C J f J f
858
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
D H H u RS f U BHI S f f
R f
R f
m z m
H z mHM m dz
Hz FD R z
D R y R
y R
R uH H
F z m z
Km z z
M
f f S fzU BI
H
y R y R
K* M* f0
R uD R H H
f f S fzF z U BI
H
R f0 f0
D
D
R uB Q DW DL R
DH
DDW DL
F zG z
F z
f f S fz zg C C g
H HF zI
F z zC C
H
H BD BL B
859
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
Case study: Comparison of Building Design Wind Loads
H
H
860
Proc. of the 8th Asia-Pacific Conference on Wind Engineering (APCWE-VIII)
Conclusions
UH
References
861
