fb-multipierv4 pilegroup au 2015 i
TRANSCRIPT
7/24/2019 FB-MultiPierv4 PileGroup AU 2015 I
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FB MultiPier v.4
Pile Group ExampleProfessor’s Driven Pile Institute
Utah State Universit ! "une #4$ #%1&
". Brian 'n(erson )*+an(ers,au+urn.e(u-
Department of ivil En/ineerin/ 'u+urn Universit
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Deep Foun(ations ! FB0MultiPier
Example # 4x4 Pile Group 0 2oosevelt Bri(/e Example
Pre(i3t Defle3tions for ateral oa(s
Lateral Load
(kips)
0
125
250
375
500
625
750
875
1000
Soil
φ 5 6#o
7 5 1#% p3iγ 5 1#% p3f
G 5 8.& 7si
ν 5 %.66
τf 5 &8% psf
9tip 5 6:4 7ips
&& ft
; ft
Pile GroupFD<= 6%> Prestresse(
S?uare4x46D @ spa3in/
Piles Pinne(
ap #4> =hi37 SteelEs 5 #A%%%7si
Rosevelt Bridge Lateral Load Test
0
100
200
300
400
500
600
700
800
900
1000
0 0.5 1 1.5 2 2.5 3 3.5
Deflection (in.)
L a t e r
a l L o a d
( k i p s )
Load Test
#ft
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Start FB0MultiPier> + sele3tin/ the
short3ut on our (es7top$ or fin( BSI C
FB !MultiPierC FB ! MultiPier> un(erthe Start Menu.
Sele3t FileCe from the menu at the
top to 3reate a ne file.
Fill in the appropriate pro*e3t
information. Sele3t$ for this 3ase$
3hoose Pro+lem =pe Pile an( ap
<nl> Finall set Units to En/lish)mixe( units->. li37 < to 3ontinue.
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he e(itor in(os ill no appear. =he
top left in(o is the Mo(el Datain(o here most info is entere(. =he
top ri/ht in(o is the Pile E(it in(o
shos the pile /roup in plan. =he +ottom left in(o is the Soil E(it
in(o here the soil strati/raph is
shon. ' 60D vie of the pile /roup isshon in the +ottom ri/ht pane.
' (efault pro+lem is automati3all
loa(e( hi3h ou ill nee( to 3han/e
Sele3t Pile ap> from the Menu.
han/e the num+er of /ri( points to 4 x4.
=he resultin/ pile 3ap ill nee(
a(*ustment for spa3in/ an( pla3ement of
piles. 2i/ht 3li37 in the Pile E(it>in(o an( sele3t '((@2emove Pile$>
3li37 on the 3ap no(e points to a(( pilesto all the no(es.
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=he spa3in/ ill no nee( to +ea(*uste( to 6( or 6 6%> 3enter0to0
3enter +eteen the piles in +oth
(ire3tions.
2i/ht 3li37 in the Pile E(it
in(o an( sele3t E(it Gri( Spa3in/.>
li37 on the /ri( spa3in/ num+ers to3han/e them. =here is also a ta+le entr
option.
=he resultin/ pile /roup shoul( loo7
smmetri3al an( the 3orre3t spa3in/ )A%in3hes 3enter0to03enter- 3an +e seen in
the +lue num+erin/.
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=he 3ap is steel. Enter #A%%%7si for the
Houn/’s Mo(ulus$ %.6 for Poisson’s
2atio$ # ft for thi37ness an( unit ei/htof 4&%p3f.
Sele3t Pile> from the Menu. li37
E(it> un(er E(it ross Se3tion.>
=he pile se3tion use( in this analsis is
the FD<= 6%> Stan(ar(. Un(er
Data+ase Se3tion Sele3tion$> 3li37 on2etrieve Se3tion> an( sele3t 6%>
s?uare FD<= Stan(ar( Prestresse(.>
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han/e the pile len/th to &&ft.
li37 < to 3ontinue.
Un(er Pile to ap onne3tion$> sele3t
Pinne( )not tpi3al +ut is the 3ase for
mo(elin/ the loa( test-. =his 3on3lu(esthe stru3tural input.
Sele3t Soil> from the menu in theMo(el Data pane. ote that the Soil
aer> (rop (on +ox 3ontains thelaers shon in the Soil E(it> pane
+elo.
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Sin3e e ill +e usin/ a sin/le soil laer
for this example$ sele3t laer # then hitthe (elete 7e to remove the laer.
Set the Soil =pe$ for aer 1$ to
3ohesionless.> Enter =otal Unit ei/ht
e?ual to 1#% p3f. Enter a fri3tion an/le
of 6#o. Set the top of the laer at 0;ftan( the +ottom at !1%%ft )for proper
em+e(ment-. =he ater surfa3e is at %ft.
Un(er Soil aer Mo(els$ use the (rop
(on +ox + ateral> to 3hoose thelateral soil tpe$ in this 3ase$ San(
)<’eill-.
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li37 E(it.> =he unit ei/ht an(
fri3tion an/le ill +e 3opie( from +efore. Enter the value for su+/ra(e
mo(ulus$ 1#% p3i. li37 <> to
3ontinue.
Un(er Soil aer Mo(els$ use the (rop(on +ox + 'xial> to 3hoose the axial
soil tpe$ in this 3ase$ Driven Pile.
li37 E(it.> =he unit ei/ht an(
fri3tion an/le ill +e 3opie( from
+efore. Enter the value for shear
mo(ulus$ 8.&7si$ Poisson’s 2atio$ %.6$Jerti3al Failure Shear$ &8%psf. li37
<> to 3ontinue.
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1%
Un(er Soil aer Mo(els$ use the (rop
(on +ox + =ip> to 3hoose the lateralsoil tpe$ in this 3ase$ Driven Pile.
li37 E(it.> Enter the value for shear
mo(ulus$ 8.&7si$ Poisson’s 2atio$ %.6$'xial Bearin/ Failure$ 6:47ips. li37
<> to 3ontinue.
=he far fiel( or pile /roup intera3tion is
mo(ele( usin/ p0 multipliers. li37 on
the Group +utton to e(it the multipliers.
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e oul( li7e to set the multipliers to
the (efault value of %.:$ %.4$ %.6$%.#K.%.#.$ %.6. li37 the Defaults
+utton to set the multipliers
ext$ e nee( to spe3if the loa(s on the pile. o$ 3hoose oa(> ta+ in the
mo(el (ata in(o.
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<ne loa( 3ases is spe3ifie( + (efault.
In this pro+lem there are : loa( 3ases.
li37 the '(( +utton to a(( a((itionalloa( 3ases.
Sele3t oa( ase 1. In this pro+lem$ thelateral loa( as applie( on the e(/e of
the pile 3ap. 2emove all (efault loa(s.oa( 3ases # throu/h : shoul( have no
loa(s + (efault.
2i/ht 3li37 near the pile /roup in the 6(Jie in(o. Sele3t Pi37in/ o(e
Mouse ontrol>
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Sele3t oa( ase 1. li37 on the 3enter
no(e on the si(e of the pile 3ap.
o un(er o(e 'pplie($ a ne no(enum+er shoul( appear. li37 '((> to
a(( a loa( there.
Enter 1#& in the x (ire3tion. Hou shoul(see a horiLontal ve3tor pointin/ in the !
x (ire3tion. 2epeat these steps for ea3h
of the remainin/ 8 loa(s #&%$ 68&$ &%%$
;#&$ 8&%$ :8&$ 1%%%.
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Hou 3an e(it some information usin/ the loa( ta+le
Use the Save 'sK> 3omman( to save
our pro+lem +efore the analsis.
=he next step ill +e to perform theanalsis. li37 on the li/htnin/ +olt i3on
to run the analsis. Hou ill /et a
arnin/ that ou ill for3e a file save$a33ept an( 3ontinue
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1&
=he iterative pro3ess of FB0MultiPier
ill +e shon hile the analsis
pro/resses.
<n3e the analsis is 3omplete$ 3li37 on
the 6D 2esults i3on to see a /raphi3al
(epi3tion if the analsis.
In the tool +ar area$ ou 3an sele3t the
loa( 3ase to vie. In the 6D Displa
ontrol pane$ ou 3an sele3t hi3h no(e
to (ispla (ispla3ements or rotations$ asell as the no(al 3oor(inates. ' 6
Dimensional representation of the resultsis shon in the 6D Jie pane.
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=he (efle3te( shape for loa( 3ase : is
shon here.
It ma +e useful to rotate$ resiLe$ or
move the mo(el. 2i/ht 3li37 in the 6D
2esults in(o an( 3hoose 6D Mouse
ontrol.
B 3li37in/ the left mouse an( (ra//in/$the mo(el 3an +e rotate( in all
(ire3tions. ol(in/ shift an( left 3li37
(ra//in/ ill translate the mo(el.
ontrol an( left 3li37 (ra//in/ illallo ou to resiLe the mo(el. ote this
also or7s in the 6D Jie in(o ofthe input portion of the pro/ram.
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ext$ 3li37 on the Pile 2esults +utton in
the tool+ar. =his ill open a series of pile results in(os.
=he pile results in(o is shon. In thePlot Displa ontrol in(o$ sele3t the
?uantities ou oul( li7e to vie plotte(
versus pile (epth. In the Pile Sele3tion
in(o$ sele3t the piles ou oul( li7eto plot.
=he sele3te( ?uantities ill +e 3olor3o(e( ith the sele3te( pile shon in
ea3h of the in(ivi(ual plot in(os.