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ASCE710W v2.4
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"ASCE710W" --- ASCE 7-10 CODE WIND ANALYSIS PROGRAM
Program Descripio!
"ASCE710W" is a spreadsheet program written in MS-Excel for the purpose of wind loading analsis for !uildings
and structures per the ASCE 7-10 Code Specificall# wind pressure coefficients and related and re$uired
parameters are selected or calculated in order to compute the net design wind pressures
%his program is a wor&!oo& consisting of se'en (7) wor&sheets# descri!ed as follows*
Wor#s$ee Name Descripio!
+oc %his documentation sheet
MW,S (.ow-ise) Main Wind-,orce esisting Sstem for low-rise !uildings with h / 02
MW,S (An 3t) Main Wind-,orce esisting Sstem for !uildings of an height
Wall C4C Analsis of wall Components and Cladding
oof C4C Analsis of roof Components and Cladding
5pen Structures (no roof) Analsis of open structures without roofs
Wind Map 6asic wind speed map (,igure 8-1 of ASCE 7-10 Code)
Program Ass%mpio!s a!& Limiaio!s
1 Wor&sheet for "MW,S (.ow-ise)" is applica!le for low-rise !uildings as defined in Section
Wor&sheets for "MW,S (An 3t)"# "Wall C4C"# and "oof C4C" are applica!le for !uildings with mean roof
heights of up to 800 feet
9 :n wor&sheets for "MW,S (An 3t)"# "Wall C4C"# and "oof C4C" the user ma opt to utili;e user designated
steps in height# flexi!le? !uildings and structures ,or >rigid? !uildings or structures# this program uses the smaller 'alue of
either 0@8 or the calculated 'alue from Section 9 of the Code for the gust effect factor#
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desired cell to 'iew the contents of that particular "comment !ox")
Revisions
Jersion = (10F0F018) - 5n MW,S (An 3t)# cell A was corrected to 7=7 instead of 718 and
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WIND LOADING ANALYSIS - Mai! Wi!&-'orce Resisi!g S(semPer ASCE 7-10 Co&e )or E!c*ose& or Paria**( E!c*ose& +%i*&i!gs
,si!g Me$o& A!a*(ica* Proce&%re .Secio! 7 / )or Lo2-Rise +%i*&i!gsKo! Iame* +a'ie# ,. Su!Lect* Wind .oading on Masonr Wall I
Ko! Ium!er* 00=7 5riginator* AC Chec&er* II
I
I!p% Daa
Wind Speed# J 18 mph (Wind Map# ,igure 8-1A-C)
6ldg Classification II (%a!le 18-1 is& Categor) Ba
Exposure Categor C (Sect 7) Monoidge 3eight# hr 1800 ft (hr N he)
Ea'e 3eight# he 1800 ft (he / hr)
6uilding Width 19000 ft (Iormal to 6uilding idge) Wall Pone
6uilding .ength 9000 ft (Harallel to 6uilding idge) Wall Pone 1E
oof %pe Monoslope (Ba!le or Monoslope) oof Pone E
%opo ,actor# ;t 100 (Sect @ 4 ,igure @-1) oof Pone 9E
+irect ,actor# d 0@8 (%a!le ) Wall Pone =E
EnclosedQ (OFI) O (Sect 4 %a!le 11-1) oof Pone 8E
3urricane egionQ I Wall Pone E
Res%*i!g Parameers a!& Coe))icie!s
000 deg 08D.
Mean oof 3t# h 1800 ft (h he# for angle /10 deg) 8Dhe
Gse
Chec& Criteria for a .ow-ise 6uilding*
1 :s h / 0< Q Oes# 5 :s h / .esser of . or 6Q Oes# 5RBCpi Coef (H:H)
External Hressure Coeff
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MW'RS Wi!& Loa& )or Loa& Case A MW'RS Wi!& Loa& )or Loa& Case +
Surface BCpf p Iet Hressures (psf) Surface DBCpf p Iet Hressures (psf)
(wF RBCpi) (wF -BCpi) (wF RBCpi) (wF -BCpi)Pone 1 0=0 110 17 Pone 1 -0=8 -91@ -198@
Pone -0 -=978 -88 Pone -0 -=978 -88
Pone 9 -097 -7 -88 Pone 9 -097 -7 -88
Pone = -0 -9= -889 Pone = -0=8 -91@ -198@
Pone 8 --- --- --- Pone 8 0=0 110 17
Pone --- --- --- Pone -0 -9= -889
Pone 1E 01 1 979 Pone 1E -0=@ -991 -180
Pone E -107 -@ -==7 Pone E -107 -@ -==7
Pone 9E -089 -9871 -170 Pone 9E -089 -9871 -170
Pone =E -0=9 -90@ -187 Pone =E -0=@ -991 -180
Pone 8E --- --- --- Pone 8E 01 1 979
Pone E --- --- --- Pone E -0=9 -90@ -187
,or Case A when BCpf is neg in Pones FE* ,or Case 6 when BCpf is neg in Pones FE*
Pones FE dist 9780 ft Pones FE dist 1800 ft
emainder of roof Pones FE extending to ridge line shall use roof Pones 9F9E pressure coefficients
MW'RS Wi!& Loa& )or Loa& Case A4 5orsio!a* Case MW'RS Wi!& Loa& )or Case +4 5orsio!a* Case
Surface BCpf p Iet Hressure (psf) Surface BCpf p Iet Hressure (psf)
(wF RBCpi) (wF -BCpi) (wF RBCpi) (wF -BCpi)
Pone 1% --- 77 7 Pone 1% --- -7 -99
Pone % --- -10= -=1 Pone % --- -10= -=1
Pone 9% --- -1 -9 Pone 9% --- -1 -9
Pone =% --- -81 -19@ Pone =% --- -7 -99
Pone 8% --- --- --- Pone 8% --- 77 7
Pone % --- --- --- Pone % --- -81 -19@
Iotes* 1 ,or .oad Case A (%rans'erse)# .oad Case 6 (.ongitudinal)# and %orsional Cases*
Pone 1 is windward wall for interior ;one Pone 1E is windward wall for end ;one
P i i d d f f i t i P E i i d d f f d
DIote* Gse roof angle θ 0 degrees for .ongitudinal +irection
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Lo2-Rise
+%i*&i!gs
$ 6 809
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WIND LOADING ANALYSIS - Mai! Wi!&-'orce Resisi!g S(semPer ASCE 7-10 Co&e )or E!c*ose& or Paria**( E!c*ose& +%i*&i!gs
,si!g Me$o& A!a*(ica* Proce&%re .Secio! 7 )or +%i*&i!gs o) A!( :eig$Ko! Iame* Eisenhower Oacht Su!Lect* Wind .oading
Ko! Ium!er* 5riginator* AC Chec&er*
I!p% Daa
Wind +irection Iormal (Iormal or Harallel to !uilding ridge)
Wind Speed# J 118 mph (Wind Map# ,igure 8-1A-C)
6ldg Classification II (%a!le 1=-1 is& Cat)
Exposure Categor + (Sect 7)
idge 3eight# hr 9117 ft (hr N he)
Ea'e 3eight# he 180 ft (he / hr)
6uilding Width 9000 ft (Iormal to 6uilding idge)
6uilding .ength 000 ft (Harallel to 6uilding idge)
oof %pe Ba!le (Ba!le or Monoslope)
%opo ,actor# ;t 100 (Sect @ 4 %a!le @-1)
+irect ,actor# d 0@8 (%a!le -1)
EnclosedQ (OFI) O (Sect 4 ,igure -8) 3urricane egionQ I
0080 (Suggested ange 0010-0070)
Heriod Coef# Ct 00980 (Suggested ange 000-0098)
(Assume* % CtDh(9F=) # and f 1F%)
Res%*i!g Parameers a!& Coe))icie!s
97@@ degMean oof 3t# h 89= ft (h (hrRhe)F# for roof angle N10 deg)
Windward Wall Cp 0@0 (,ig 7=-1)
.eeward Wall Cp -080 (,ig 7=-1)
Side Walls Cp -070 (,ig 7-=1)
Windward oof Cp -01= (,ig 7-=1) (Condition V1)
+amping atio# β
oof Angle#θ
θ o
.
hr h
P*a!
E*e3aio!
.
Wind
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Norma* o Ri&ge Wi!& Loa& 5a;%*aio! )or MW'RS - +%i*&i!gs o) A!( :eig$
Surface ; ; $; Cp p Iet +esig
(ft) (psf) (wF RBCpi)Windward Wall 0 109 8 0@0 1=91
1800 109 8 0@0 1=91
000 10@ 9117 0@0 1898
800 119 9=0 0@0 11
9000 11 99=8 0@0 10
,or ; hr* 9117 117 997 0@0 1708
,or ; he* 180 10@ 9109 0@0 18
,or ; h* 89= 119 9=@ 0@0 1=
.eeward Wall All - - -080 -18
Side Walls All - - -070 -817
f ( i d d) d 1 0 1= 7@
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Deermi!aio! o) G%s E))ec 'acor4 G
:s 6uilding ,lexi!leQ Io f N1 3;
B 0@80
Harameters Gsed in 6oth :tem V and :tem V9 Calculations (from %a!le -1)*
00@7
! 107
0111!(!ar) 0@0
c 018
80 ft
018
;(min) 7 ft
Calculated Harameters Gsed in 6oth igid andFor ,lexi!le 6uilding Calculations*
;(!ar) 180 0Dh # !ut not / ;(min) # ft %a!le -1
:;(!ar) 0171 cD(99F;(!ar))(1F) # E$ -7
.;(!ar) 8@7
g$ 9= (9=# per Sect =)
g' 9= (9=# per Sect =)
gr ==08 (D(.I(900Df)))(1F)R0877F(D.I(900Df))(1F) # E$
01@ (1F(1R09D((6Rh)F.;(!ar))09))(1F) # E$ -@
B 0@@7 08D((1R17Dg$D:;(!ar)D)F(1R17Dg'D:;(!ar))) # E$ -
0080 +amping atio
Ct 0 098 H i d C ffi i t
1 Simplified Method for igid 6uilding
α
α(!ar)
l
ε(!ar)
lD(;(!ar)F99)(ε(!ar)) , E$ -
Calculation of B for igid 6uilding
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'ig%re 7=>-1 - Desig! Wi!& Loa& Cases o) MW'RS )or +%i*&i!gs o) A** :eig$s
the structure# considered separatel along each principal axis
i i l i f th t t i L ti ith t i l t h id d
Case 1* ,ull design wind pressure acting on the proLected area perpendicular to each principal axi
Case %hree $uarters of the design wind pressure acting on the proLected area perpendicular to
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Har
I
I
II
I
Ba
Mono
,or hF./08*
,or hF.08*
,or hF.N10*
actual hF.
Gse oof Cp
. 90 ft
6 0 ft
α
6
he
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n Hress (psf)
(wF -BCpi)
01
01
70=
7@@
@8
@7=
8
79
-7
-19=@
1
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-11
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of
ach
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WIND LOADING ANALYSIS - Wa** Compo!e!s a!& C*a&&i!gPer ASCE 7-10 Co&e )or +%i*&i!gs o) A!( :eig$
,si!g Par 1 /
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Wi!& Loa& 5a;%*aio! )or Wa** Compo!e!s / C*a&&i!g
Component ; h $h p Iet +esign Hressures (
(ft) (psf) Pone = (R) Pone = (-) Pone 8 (R)
Wall 0 0@8 98 1@10 -01 1@10
,or ; hr* 1=7 0@8 98 1@10 -01 1@10
,or ; he* 1=7 0@8 98 1@10 -01 1@10
,or ; h* 1=7 0@8 98 1@10 -01 1@10
Iotes* 1 (R) and (-) signs signif wind pressures acting toward 4 awa from respecti'e surfaces
Width f P 8 ( d ) < < @ 1 ft
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Wa** Compo!e!s a!& C*a&&i!g
Wa** ?o!es )or +%i*&i!gs 2i$ $ 6 80 )=
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I
II
I
Ba
Mono
B
Sid
W
,ast
Compare to 9
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"ASCE710W l " H
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sf)
Pone 8 (-)
-01-01
-01
-01
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WIND LOADING ANALYSIS - Roo) Compo!e!s a!& C*a&&i!g
,si!g Par 1 / o or Mo!os*ope R
oof Angle# θ
θ o
.
hr h
P*a!
E*e3aio!
.
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gJersion
Wi!& Loa& 5a;%*aio! )or Roo) Compo!e!s / C*a&&i!g
Component ; h $h p Iet +esign Hressures (
(ft) (psf) Pone 1##9 (R) Pone 1 (-) Pone (-)
Koist 0 108 90 80 -711 -@=@71800 108 90 80 -711 -@=@7
000 108 90 80 -711 -@=@7
800 108 90 80 -711 -@=@7
9000 108 90 80 -711 -@=@7
9800 108 90 80 -711 -@=@7
=000 108 90 80 -711 -@=@7
,or ; hr* =00 108 90 80 -711 -@=@7
,or ; he* =00 108 90 80 -711 -@=@7
,or ; h* =00 108 90 80 -711 -@=@7
Iotes* 1 (R) and (-) signs signif wind pressures acting toward 4 awa from respecti'e surfaces
Width f P ( d ) < < 1 @0 ft
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Jersion
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Roo) Compo!e!s a!& C*a&&i!g
Roo) ?o!es )or +%i*&i!gs 2i$ $ 6 80 )=
6 7 &eg= 7 &eg= 6 6 7 &eg= 7 &eg= 6 6 >
.)or Ga;*e Roo)s 6 >o a!& Mo!os*ope Roo)s 6
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Jersion
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Jersion
sf)
Pone 9 (-)
-@=@7-@=@7
-@=@7
-@=@7
-@=@7
-@=@7
-@=@7
-@=@7
-@=@7
-@=@7
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Jersion
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WIND LOADING ANALYSIS - Ope! Sr%c%res 2i$o% Roo)sPer ASCE 7-10 Co&e
,si!g Me$o& A!a*(ica* Proce&%re .Secio! 8= )or O$er Sr%c%res o) A!( :eig$
Ko! Iame* Su!Lect*Ko! Ium!er* 5riginator* Chec&er*
I!p% Daa
Res%*i!g Parameers a!& Coe))icie!s
Wind Speed# J 170 mph
Class# 5cc Categor II (%a!le 1-1)
Exposure Categor C (Sect 7)
%opo ,actor# ;t 100 (Sect @ 4 ,ig @-1) 80 (%a!le -1)3eight of Structure# h 1800 ft ;g 00 (%a!le -1)
Structure Width# 6 18000 ft (normal to wind) fre$# f 1997 3; (f N1)
Structure .ength# . 10000 ft (parallel to wind) B 0@80 (Bust ,act igid
0010 (0010 to 0070)
Heriod Coefficient# Ct 0000 (000 to 0098)
+irect ,actor# d 0@8 (%a!le -=) Jelocit Hressure (Sect 909# E$ 909-1)
3urricane egionQ I $; 0008D;D;tDdDJ
Iet +esign Wind Hressures (Sect 8)*
p $;DBDCf (psf)# where
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,or towers with s$uare cross-sections# wind forces shall !e multiplied ! following factor
8 Wind forces on tower appurtenances such as ladder# conduits# lights# ele'ators# etc# shal
calculated using appropriate force coefficients for these elements .oads due to ice accretion as descri!ed in Chapter 10 shall !e accounted for
wind is directed along a tower diagonal* 1R 078Dε / 1
7 Iotation* ε ratio of solid area to gross area of one tower face for segment considered
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III
I
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hen
l !e
'IG,RE 8=-1A +asic Wi!& Spee& )or Occ%pa!c( Caegor( II +%i*&i!gs a!& O$er Sr%c%res
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Iotes*
1 Jalues a
.inear in
9 :slands a
= Mountai
8 Wind sp
0001=9# M
.ocation
Buam
Jirgin :slan
American S
3awaii -
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'IG,RE 8=-1+ +asic Wi!& Spee& )or Occ%pa!c( Caegor( III / I +%i*&i!gs a!& O$er Sr%c%res
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American S
3awaii -
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'IG,RE 8=-1C +asic Wi!& Spee& )or Occ%pa!c( Caegor( I +%i*&i!gs a!& O$er Sr%c%res
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Iotes*
1 Jalues a
.inear in
9 :slands a
= Mountai
8 Wind sp
000999# M
.ocation
Buam
Jirgin :slan
American S
3awaii -
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re nominal design 9-second gust wind speeds in miles per hour (mFs) at 99 ft a!o'e ground for Exposure C categor
terpolation !etween contours is allowed
nd coastal areas outside the last contour shall use the last wind speed contour of the coastal area
ous terrain# gorges# ocean promontories# and special wind regions shall !e examined for unusual wind conditions
eds correspond to approximatel a 7U pro!a!ilit of exceedence in 80 ears (Annual Exceedance Hro!a!ilit
: 700 ears)
Special Wind egion
J (mph) (mFs)
18 (@7)
ds 18 (7=)
amos 10 (7)
Special Wind egion Statewide 190 (8@)
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re nominal design 9-second gust wind speeds in miles per hour (mFs) at 99 ft a!o'e ground for Exposure C categor
terpolation !etween contours is allowed
nd coastal areas outside the last contour shall use the last wind speed contour of the coastal area
ous terrain# gorges# ocean promontories# and special wind regions shall !e examined for unusual wind conditions eds correspond to approximatel a 9U pro!a!ilit of exceedence in 80 ears (Annual Exceedance Hro!a!ilit
: 1700 ears)
Special Wind egion
J (mph) (mFs)
10 (=)
ds 178 (7@)
amos 170 (7)
Special Wind egion Statewide 1=8 (8)
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re nominal design 9-second gust wind speeds in miles per hour (mFs) at 99 ft a!o'e ground for Exposure C categor
terpolation !etween contours is allowed
nd coastal areas outside the last contour shall use the last wind speed contour of the coastal area
ous terrain# gorges# ocean promontories# and special wind regions shall !e examined for unusual wind conditions eds correspond to approximatel a 18U pro!a!ilit of exceedence in 80 ears (Annual Exceedance Hro!a!ilit
: 900 ears)
Special Wind egion
J (mph) (mFs)
1@0 (@0)
ds 180 (7)
amos 180 (7)
Special Wind egion Statewide 118 (81)
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8/18/2019 ASCE710W v2.4
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