Upload
salahaddinsharif
View
17
Download
6
Embed Size (px)
DESCRIPTION
The creation of this manual has been over 32 years in the making. In 1977 Engineer Robert Groeli made an official trip to the Baglung District in Nepal to view the incredible chain suspended bridges being built by the locals there. His report that followed launched a program operated by the Nepalese Government and supported by Helvetas of Zurich, Switzerland to enhance and replicate this amazing technology elsewhere in Nepal. By the late 1990’s, the BBLL (Building Bridges at the Local Level) had become one of the most successful development infrastructure programs in the world. Their early success was followed by publishing the “Suspended Short Span Trail Bridge Standard Technical Handbook and Drawings” in 2002 which was followed by the completion of 2,500 bridge in Nepal by 2008.
Citation preview
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 1/22
Volume 3: Suspended Pedestrian Bridg
Part 1: Design and Analysi
First Edion 20
Changing Lives One Bridge at a Tim
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 2/22
Volume 3: Suspended Part 1 Design & Analysis
ForewordBridges to Prosperity Suspended Bridge Manual
Dear User:
Th f ths u hs b v 32 ys th kg. I 1977 Eg Rbt G
tp t th Bgug Dstt Np t vw th b h susp bgsbg but by th s th. Hs pt tht fw uh pg pt by th Nps
Gvt suppt by Hvts f Zuh, Swtz t h pt ths zg
thgy swh Np. By th t 1990’s, th BBLL (Bug Bgs t th L Lv)
h b f th st sussfu vpt fstutu pgs th w. Th
y suss ws fw by pubshg th “Susp Sht Sp T Bg St Th
Hbk Dwgs” 2002 whh ws fw by th p f 2,500 bg Np by
2008.
Th pubshg f ths u wth Hvts gg t t u st -uty gs
2003: Z P Chs Rs. As w xp th Hvts uty ftbg pg
t Af L A, t b ppt tht th g Hvts wgs t bvt t AutCAD, th us vt t vsu ft. Ths hgs v
t y f s f tg, but s t w th us wgs t b sy pt t h
w uty, wg f hgs tpgphy, vb sus, utu. Lk Hvts fu,
t pubsh u k ths vght. Ev wth th gus
jupstt tg v f Hvts Np, t tk us 8 ys t g
th xp ssy t s s y txt, ths us w
wys b wk pgss, g t u vw vs.
Th vut, s, spss tht ths pssb t
y t . But, I wu k t spy thk Pss Bkh
(PB) f NYC f vg th Cs Dw uts t AutCAD,
th Rty Cub f Nwpt Nws, 35 th Rty Cubs th Rty
Fu, th vuts st th Bgs t Pspty
sg t (Jy Jhs, Avy Bg, Z P, Chs Rs) tht tbut s
y hus t k ths pssb.
I th s spt tht w us t fy us th Hvts us, w hby th s. Ths
u s g b fy p stbut. W wu sk, hwv, tht y hgs
t th u t y sh wth Hvts Bgs t Pspty s tht w ght
bt, but tht yu s k y w us hgs f vb t s w.
Sy,
Kth R. Ftz, Rt &
Fu, Bgs t Pspty, I.
5007 C-126 Vty Bv.
Yktw, VA 23693
www.bgstpspty.g
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 3/22
Volume 3: Suspended Part 1 Design & Analysis
Introduction
I 2003, Bgs t Pspty (B2P) st
tv t Np t t wth th Swss
gz Hvts t but
th b-susp bg thgy.
Dsg stu f th suspbg w tught t Hvts’
pph t ppty bg bug t
th uty v. Ov th pst 6 ys,
Bridges to Prosperity has introduced the
hghy t Susp
Bg sg t uts f th
thgy u th w.
Th sgs u th Vu 3
Susp Pst Bg Mu gt wth th Hvts Np Sht Sp T Bg
Th Hbk tht ws t wth v 30 ys f xp th utus gs fNp. Bgs t Pspty hs ut w th utu hgs s w hv tk
th thgy f Ethp t Pu. Th sgs hv b pt t b sut th
gv f wk. Bgs t Pspty hs stu ps xp xbty
sg tvs sg pss ts t su th susp pst bg s
y sustb p f us vyg tpgph ggph gs f th
w.
Th fu pts t Vu 3: Susp Pst Bg Mu, stutu s fws:
Part 1: Design and Material Quanes
Part 2: Construcon Plans Part 3: Construcon Guide & Quality Control
Part 4: Operaons & Maintenance
As wth y ut sg, usg ssups ust b by th g sg. Th fwg
u w pt t pv bth ut wgs f us wthut gg
sg gus f ths tst bg uss t v wth ths us. F futh sg
g ssups f th Hvts Np Sht Sp T Bg Th Hbk,
ty pt sg sts s w s y pt sg s sts.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 4/22
Volume 3: Suspended Part 1 Design & Analysis
Volume 3 Suspended Pedestrian BridgePart 1: Design and Analysis
Table of Contents
Section 1: Suspended Bridge: Design Background 1.1 Dsg Lgs Assups
1.2 Lts
Section 2: Design Procedure 2.1 Ovvw
2.2 Aby Lv Suvy
2.3 Dw p & x bg fus
2.4 St Cb Szs: Cb k-up t
2.5 Cut Rqu Nub f Ts
2.6 Fz Ps f Fus
2.7 St T & Ahs Dsgs
2.8 St Cstu Dwgs
2.9 Cp t F Dwg 2.10 Dsg Exp
Section 3: Material Estimate 3.1 Cb & Cps
3.2 St Rft B
3.3 Ct
3.4 Dkg
3.5 Oth Mts
3.6 Mt Qus Exp
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 5/22
Volume 3: Suspended Part 1 Design & Analysis 5
Section 1:Suspended Bridge Design Background
1.1 Design Loadings & Assumptions
Th fwg s ts bs ssups us by Bgs t Pspty wh fyg xtpg up th g bg sg. Thy t b f f -g
sgs, s sgs y pt usg th fwg s ssups. Skp t
S 2 f sg pss.
1.1.1 Liveloads
Bf stg th bg sg, vfy wth stutu g s gus. Th
Bgs t Pspty st f v s 3.11 kN/² (65 b/²). As t AASHTO (1997),
th v u f 4.07 kN/² (85 b/²) f kg s xg 400 squ ft s
sstt wth ASCE 7-95, “Mu Dsg Ls f Bugs Oth Stutus.” Th u
uts f th u pbbty f th g g f th stutu bg fuy t y
gv s sstt wth th gs xpt f typ pst bg. Tt LL = 3.11 kN/, ssug 1.0 t wth
1.1.2 Dead Loads
Th s th su f sf-wghts f th bg ts. Bw s tb f ssu szs
wghts, us B2P sg ts.
Tt DL = 0.321 kN/, ssug 1.0 t wth
1.1.3 Wind Loads (Overturning)A w pp hzty t ght g t th gtu xs f th bg sh b pp t
1.676 kN/² (35 b/²). Th sp w pssus f w vty f 100 s p hu. I
suh s st hs hgh w-vty quts: AASHTO A 3.15 (1997) y b f
th . Gv th pjt p f th bg s 1.1 ts hght: th sug
w vtu f s 1.843 kN/.
Tt WL = 1.843 kN/, ssug 1.1 t g hght
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 6/22
Volume 3: Suspended Part 1 Design & Analysis 6
1.1.4 Load Combinaons
T ut th uuv v , h pssb b ust b hk t
th xu tg s. Th fwg bs w b us, xtt f Tb
3.22.1A AASHTO (1997):
Futh ts f sg ssups y b f S 5.
1.2 Limitations
Th susp bg s t f psts, vstk y s t pb f ssg
th 1.0 t w k wth. Wg th k up t 1.5 ts s pssb s w, but qus g vut th h, tw kg ps. It s tht y bys, s
tbks b wk
ss, but s
ptb f ssg.
Athugh th t w
gs ppy
s wth s sp,
th s sg t f 120
ts wthut
w guy stutus. Thgtu gty f th
bg s ps
by 120 ts wthut
th t suppt.
W guys sgty
s th v st f th
stutu s tw (2)
bs fu (4)
hs qu.
Th sg gu s s t t 1.0 t k wths. Isg th k wth thby ss
bth th v thf qus g t pt us. Futu
s f ths u y u gt ub f tvs Futh, f st k
s hs, th spg s s. Nt tht th g Hvts Np sg
u th st k gs thf f st k s hs, sg g s
ssy.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 7/22
Volume 3: Suspended Part 1 Design & Analysis 7
Section 2:Design Procedure
2.1 Overview
Dsgg th susp b bg qus vy th bkgu. Th fwgs w pv stp by stp gu t sgg bg fwg th p f th st
suvy s ut Volume 2 Feasibility & Topographic Survey .
2.2 Aby Lv Suvy
2.3 Bg p & Fx Fu Ls
2.4 Cut Rqu Nub f Ts
2.5 Fz Ps f Fus
2.6 St T & Ahs Dsgs
2.7 St Cb Szs: Cb k-up t
2.8 St Cstu Dwgs
2.9 Cp t F Dwgs2.10 Dsg Exp
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 8/22
Volume 3: Suspended Part 1 Design & Analysis 8
2.2 Abney Level Survey
If t s y, pt bg p suvy usg Aby v. Rf Volume 2
Feasibility & Topographic Survey f pt ts.
2.3 Bridge Profile & Fix Foundation Locations
Ct p skth f th st suvy. Us pts ‘L’ ‘R’ f th suvy t k th
py f th tws f th ght s spvy. Vfy tht th
butt s th s f th bk wh fg w st, wt t ’s bk.
D pts:
• Sp ts. Nt f su btw ‘L’ ‘R’ f t -tw sp
• Hght btw ‘L’ ‘R’, f v t suvy sht
• Nt s k typ th s
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 9/22
Volume 3: Suspended Part 1 Design & Analysis 9
2.4 Calculate Required Number of Tiers
A u s qu btw th wst pt th b th hghst pt tht
th wt hs v h (HWL). Futh, th xu hght btw th tw
tws ust b th th sp (L) v by 25, fu pt f th sp. If ∆H (th hght
btw pts ‘L’ ‘R’)) xs ths ut, f th tws s t b
s. T pv qut t quz s v btw tw ss,
ust ut th qu ub f s; h s 1.0 t t s th v f th bg
tws tt th v f th bs.
I t ut th qu hght, th fwg f ust b kw;
• Span (L) ts (ust b ss th 120 ts)
As th suvy pts ‘L’ ‘R’ v t th ft f fu t ft f fu,
stt by ssug 1.40 ts th s t u wkwy s t
wkwy s sp. O wgs st, vfy th s.
• Height dierence (∆H) = Ev ‘L’ – Ev ‘R’Stt by ssug tht h s hs , s th v f th wkwy tws
s 1.40 ts bv ‘R’ ‘L’ spvy (1.0 t f , 40 f s
pt, p th tw wg T1). Us th s v ssups
tu s us th suvy: w s fu v = 100.00.
• Cable Design Sag (Bd) and Hoisng sag (Bh) (f N-Psth Cb)
Th b sg s th v p tht th b w p bw th wkwy ss.
Th b s hst t ss sg th s sg bus th b s st, th
sf-wght f th bg t th g w sghty stth th b. As
suh, th wst pt s th sg sg, but th tu w pt tks bth t
s. Less than 80 m Greater than 80 m
5.00% x L 4.55% x L
4.00% x L 3.64% x L
• Low point ‘f’
If bth ss qu hght (∆H = 0), th th w pt s ty th .
If t, th Cut usg th fwg qu us th w pt tx th
fwg pg.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 10/22
Volume 3: Suspended Part 1 Design & Analysis 10
• Verify adequate Freeboard (Fb)
Fb s th qu btw th wst pt th b th
hghst pt f th wt. A g y u s th suggst fbvus wth st tpgph s, but f g pupss,
u fb qu s s fws;
- Mountainous gorges: 4.0 -5.0 meters
- Flood Plains: 2.0 meters
Fb s v by tkg th w s v, subtg th sg vu ‘f’
subtg th v f th Hgh Wt Lv. If th vu f Fb s ss
th qu, th sg ust s th ub f s th bth
fus.
Exp:
A t vy suvy wth sp f 60 ts, pt ‘L’ 2.0 ts w th pt
‘R’, Hgh Wt Lv (HWL) t v 96.5 ts f th suvy;
Low side elevaon = 101.40 meters
Low point in cable (relave to low side) ‘f’ = 2.08 meters
High Water Level (HWL) = 96.5 meters
Okay
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 11/22
Volume 3: Suspended Part 1 Design & Analysis 11
Finalize Position of Foundations
A sg th ub f s qu, th sz f th fu ftpt s kw. Ths stp
w vfy th yut sg. If ft f fu suvy pts ‘L’ ‘R’ ust b v, tk
t t suvy t st.
• Vfy qut sp g st f sp (Volume 2 Topographic Survey )
Mxu 35 g sp s Mxu 60 g sp k
or u 3.0 ts f g or u 1.5 ts f g
• Vfy sp ss th 120 ts btw ss
• Vfy hght f tp f s (∆H) < L / 25
• Tk sp ut Dsg Sg, B. Vfy w pt ‘f’
• Cut Fb
• Vfy gt th u w
Flood Plains: 2.0 meters Mountainous gorge: 3.0 meters
Soil Rock
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 12/22
Volume 3: Suspended Part 1 Design & Analysis 12
2.6 Select Tier & Anchor Designs
Th tw typs f h sgs; Gvty Ahs Du Ahs. Gvty Ahs y b
us y s k s thy y ‘wght’, t p v th h.
As suh, th xv qu s sb.
Du Ahs qu k s s thy y f btw th k f th pu
t u. As suh, y h ftu k s ptb. S Volume 2: Feasibility
& Topographic Survey f f.
Gvty Ah ps spt t tw subtgs; 0 - 60 t sps, 61 - 120 t
sps. Eh ss us (1), tw (2), th (3) tvs. A suy f
Gvty Ah Ps fu Volume 3 Part 2: Suspended Bridge Drawings s fws:
0 - 60 1 T Gvty Ah 1G60
0 - 60 2 T Gvty Ah 2G60
0 - 60 3 T Gvty Ah 3G60
61 - 120 1 T Gvty Ah 1G120
61 - 120 2 T Gvty Ah 2G120 61 - 120 3 T Gvty Ah 3G120
Du Ah ps s spt t tw subtgs; 0 - 60 t sps, 61 - 120 t
sps. N futh ss s s k hs t thsvs t th
. Ths s u t th sht st btw th h th ss, qu u t sp
k s. T s th ub f s wu qu t st h ppy futh bk
t th k, thus sg uty. Th th szs f u hs; s, u
g. S (0 - 40 ts) Mu (41 - 60 ts) hs u 1D60, Lg (60
-120 ts) y b fu 1D120. A suy f Du Ah Ps fu Volume 3 Part 2:
Suspended Bridge Drawings s fws:
0 - 60 1 T Du Ah Rk 1D60
61 - 120 2 T Du Ah Rk 1D120
2.7 Select Cable Sizes: Cable Look-Up Tool
Bgs t Pspty t Ms Ex Cb Lk-up T, vb t th wbst t www.
bgstpspty.g/sus.
Th Cb Lk-up T qus th us t put th bkg stgth ( f t s bkg
f) f vb b pus, bs y ub f b ub bs, utputsth xu sp wb f gv k wth. Bf usg th t, sh vb st
b qust Pf Iv stg bkg stgths f gv bs.
Th Cb Lk-up T ssus tht th b hs v g f 0.325% s t f
us wth -pstth b.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 13/22
Volume 3: Suspended Part 1 Design & Analysis 13
Step 1Rsh vb b bkg stgths. If pt t ts kwts (kN),
vt t pus usg th fwg shps:
Step 2
Iput Bkg Stgth vus ( pus) s ub f bs (red txt).
Step 3
Mfy bs u s k wth hs vu t st s g s bg sp (yw).
Exp:
Iput 2 wkwy bs 2 h bs. Ty g wth 4 wkwy bs 2
h bs.
Step 4
Cut quty f b. Cs th sts f sv bs f b bf vg
. O b s s by th f 500 ts, s f b qus sghty
th 500 ts, t y b wth th st t s th sz f th b t u
th ub f bs thus th tt qu gth.
Cut th quty f b t ; wh th st btw hs, wth
14 ts 4 pt gy t ut f b sg wp-bk wth th
hs. F th st vus f th Cstu Dwgs.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 14/22
Volume 3: Suspended Part 1 Design & Analysis 14
2.8 Select Construction Drawings
F gv sp, gg s ub f s, tw (2) Abutt T & Ah wgs
ust b st, f h s f th v. Th Tw wg ts th 1.0 t k wth
tw s qu. Th (3) Dkg wgs ust b st f th 2 4 wkwy bs,
wth tvs btw ssb s s spvy.
Abutt T & Ah (Rght L s qu)
Gravity Anchors
0 - 60 1 T 1G60
0 - 60 2 T 2G60
0 - 60 3 T 3G60
61 - 120 1 T 1G120
61 - 120 2 T 2G120
61 - 120 3 T 3G120
Rock Drum Anchors
0 - 60 1 T 1D60 61 - 120 2 T 1D120
Tw 1.0 k wth T1
Dkg P 2 wkwy bs W21
4 wkwy bs W41
Dkg S 2 wkwy bs W22
4 wkwy bs W42
Dkg DtWith Nailer
2 wkwy bs W23
4 wkwy bs wth N W43
No Nailer
2 wkwy bs N N W24
4 wkwy bs N N W44
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 15/22
Volume 3: Suspended Part 1 Design & Analysis 15
2.9 Compile into Final Drawings
Cpt th bg sg by pg qu bg wgs g bg p f
th pjt. Iu ss ug sp, pth f h, st t th bk f th
h. St th fwg wgs;
Gravity Anchor Right Side 1G60
Gravity Anchor Le Side 1G60
Tower 1.0 k wth T1
Decking Plan W21
Decking Secon W22
Decking Detail With Nailer W23
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 16/22
Volume 3: Suspended Part 1 Design & Analysis 16
2.10 Design Example
A p vy wth 60 t sp ws suvy. C pts f th suvy s fws:
• Pt ‘L’ Ev (w s) = 100.0 ts
• Pt ‘R’ Ev (hgh s) = 102.0 ts
• HWL = 96.5 ts
T ut th u ub f s, fy u fb (Fb) s gt th 2.0 t
u s sp f vy. Stt by ssug (1.0 t hght pus 0.4 t s
vg hght).
Span (L) = 60 ts
Elevaon low side walkway saddle =
Elevaon high side walkway saddle =
Height dierence (∆H) =
Verify:
Cable Design Sag (Bd)
Low point ‘f’
Css f sp ∆H Dsg Sg Ev Cht = 2.08 ts
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 17/22
Volume 3: Suspended Part 1 Design & Analysis 17
Verify Freeboard ‘Fb’
Select Cable
Th b supp pv sps f 26 IWRC b wth bkg stgth f
30.0 t ts (68,343 pus). Usg th Cb Lk-up T, 4 wkwy k bs 2
h bs qu, s thy sut t 64 t sp.
Select Drawings
O , 60 ts ss Rght butt = 1G60O , 60 ts ss L butt = 1G60
Tw Dwg= T1
Dkg P, 4 b = W41
Dkg S, 4 b = W42
Dkg Dts, 4 b N = W43
Compile into Final Drawing
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 18/22
Volume 3: Suspended Part 1 Design & Analysis 18
Section 3:Material Estimate
3.1 Cable & Clamps
St st b bs th t bkg stgths, usg th Cb Lk-up T www.bgstpspty.g/sus. A sg th pu b, ut th quty
t by upyg th ub f bs by th fwg qu:
Th quty f ps p b s pt th sz f th b th typ f p st.
Th tb bw s th Bgs t Pspty st f tqu quts f p-fg
b b ps t gv b p ts. Cb p uftu pv
sps tht ust b v s ths ht s y gv s gu.
Drop-forged clamps are of superior quality and must be purchased whenever possible.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 19/22
Volume 3: Suspended Part 1 Design & Analysis 19
3.2 Steel Reinforcement Bar
Towers
- 4 ps st b, 16 x 4.50 ts gth
- (# f wkwy bs + 2) ps, 16 x 20
Decking Suspenders
- (Tw th (Sp + 1) ps), 8 sth, ut t 1.80
Gravity Anchors
- Sps 60 ts ss (S Mu)
- 4 ps st b, 20 , 2.90 gth;
- 11 squ gs, 10 , ut t 2.20 h,
bt t squs 0.50 p s
- Sps 61 -120 ts (Lg)
- 8 stght bs, 20 , 2.90 gth;
- 11 squ gs, 10 , ut t 3.35 h,bt t squs 0.80 p s
Rock Drum Anchors
- Sps 40 ts ss**
- Ah s, 16 ps, 25 , ut t 1.50 ts
- I u: 8 ps, 10 , ut t 3.40 ts, bt t 0.90 t
- Out u: 8 ps, 10 , ut t 5.25 ts, bt t 1.50 t
- Sps 41 - 60 ts
- Ah s, 20 ps, 25 , ut t 1.50 ts
- I u: 8 ps, 10 , ut t 4.15 ts, bt t 1.15 t t- Out u: 8 ps, 10 , ut t 5.90 ts, bt t 1.70 t t
- Sps 61 - 120 ts
- Ah s, 40 ps, 25 , ut t 1.50 ts
- I u: 8 ps, 10 , ut t 4.15 ts, bt t 1.15 t t
- Out u: 8 ps, 10 , ut t 5.90 ts, bt t 1.70 t t
3.3 Cement
Qus gv wgs. Su tgth th qus f T & Ah wgs f bth L
Rght butt th quty f th Tws.
If t s t b us t xpt th ug , tk t t th v 28 y stgth
u . It s t th s f f h pus. Th quty qu
s sp th put.
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 20/22
Volume 3: Suspended Part 1 Design & Analysis 20
3.4 Decking
Bgs t Pspty hss t us w kg wh v w s vb p. Th
tw typs f w kg tvs: wth wthut ‘’. Th ‘’ s th s wth s
th kg ps, s h t th tp f th w ss-b t s th ut f
suf vb f g th kg ps. Th ‘’ pvs stutbty ws
f s ssb sz but ss th tt gth f kg ps qu. It s up t th
sg g t f th st s wt.
Dkg ps ut t 3.0 ts f y sp v 60 ts pfby sps. If th bg
s sht th 60 t sp, 2.0 t kg ps wb. Th tt ub f kg
ps s qu t [sp v by gth f h b (th 2.0 3.0)] up by v (5), s
th w b v kg ps ss, h 15 - 25 w. If ‘s’ t b us,
(Sp pus ) ts f kg ps w b qu, ut t 1.0 ts.
Cssbs: (Sp + 1)
Dkg: (Sp / gth f h b (th 2.0 3.0) x 5)
Ns (p): (Sp + 1)
3.5 Other Materials
• Fxb Ps tubg: 5 t* 3.5 t p b (Ah)
• Fxb Ps tubg: 5 t* 2.0 t p b (Tw)
• Tyg W 10 kg
• Ns: 5” 1 kg p t
• U-s 1 kg p 10 ts
• Sws: 5/16 x 10 (4”) 1 p k p
• A-sv pt 1 g (3.8 L) p 50 ts
• Fg: 1.50 hgh Bg sp x 2
• Rg T 4 gs• H Ss 4 ps
• Pt f tws 6 gs
• S/Gv
• Msy Bk
* The best product for this purpose is reinforced sucon tube used by water trucks.
Nailer (Recommended) No Nailer
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 21/22
Volume 3: Suspended Part 1 Design & Analysis 21
3.6 Material Quantities Example
7/21/2019 Design Manual of Suspension Bridges
http://slidepdf.com/reader/full/design-manual-of-suspension-bridges 22/22
Bridge Name:
Span:
Material List
All prices are estimations, prices can change at moment of purchase, always verify
Item Unit Units required Estimated Unit Price
Cable and clamps
Cable 26mm m
Clamps 26mm piece
Cable 32mm m
Clamps 32mm piece
-$
Construction MaterialsCement (6.4 x volume for concrete, 1.1 x area for mortar) bags of 40kg
Concrete Blocks = 40 x 20 x 15 (cm) unit
Rebar 12mm (1/2") (9m)
Rebar 16mm (5/8") (9m)Rebar 20mm (3/4") (9m)
Rebar 25mm (1") (9m)
Handrail saddles unit
Walkway saddles - 2 cable unit
Walkway saddles- 4 cables unit
Tying wire kg
Plastic suction tube 3" mts
Roofing Tar gal-$
Deck
Wood crossbeams - (10cm x 10cm) x 140cm piece
Wood nailing panels - (5cm x 20cm) x 100cm piece
Wood crossbeams - (10cm x 20cm) x 140cm piece
Wood platform - (5cm x 20cm) x 200cm piece
Screw - 8mm x 10cm(nailing panel to crossbeam connection) unit
Nails - 15cm kg
Smooth iron bar 10mm (5/16") (suspenders) (9m)
Smooth iron bar 12mm (1/2") (j-bolts) unit
Anti-rust paint (suspenders) 0.5gal Anti-rust paint (j-bolts) 0.5gal
Safety fencing = 1.5m in height mts
U-shaped nails kg
Tying wire kg
-$
Local Materials
Sand m³
Gravel m³
River rock m³
Dressed Stone m³
-$
Transportation
Transportation of materials (City - City) per trip
Transportation of materials (City - Village) per trip
Transportation of materials (Village to site) per trip-$
Misc. Tools and Tool Rental
Misc. Tools* (listed below)
Tool rental (winch and/or drill)-$
Labor and Technical Support
Mason daily
Carpenter daily
Supervision dailyLogistical Support per visit
Logistical Support per visit
Estimated Sub-total for Labor -$
Total -$
Contingency 10% -$
Total with 10% Contingency -$
Bridge Location: