1:16 - det3396

OREGON DEPARTMENT OF TRANSPORTATIONTECHNICAL SERVICES

BULB-I GIRDER SCHEDULE,POST-TENSIONED END BLOCK

AND MISCELLANEOUS DETAILS

DETAIL NO.

DET3396

DETAILS

DE

T3

396

FIGURES

FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4

"N"

"y "c

"N"

"y "c

FIGURE 5 FIGURE 6 FIGURE 7 FIGURE 8

Reinforcing Bars

"a" "b" "m" "D "L R"D "

En

d B

lock

Back End (On Stationing)G

irder

Type

Sp

an

Nu

mb

er

"F "L"E "L

"E "R "F "R "F "L

"E "L"E "

R "F "R

GIRDER SCHEDULE

1"c

l.

Possible strand locations.

2-2" w/8" web

1"c

l.

2"

3"

#3 "U3" bars, seeMidspan Section forbar spacing.

2"

1 3/4 "cl. w/7 1/2 " web

1-8" w/8" web

No Scale

"X

" B

B

(Alternate B)Cable restraints top

and bottom at each

Beam D.

MidspanDeck

Build-upas required

A

A

varie

s

B B B

B

B

B

6 @ 3"

Bar "U5"stirrups

Bar "U4" stirrups spacing

"b" @ 12" 18" max. spcg.

w/

7 1

/2 "

web

w/

8" w

eb

12"

4-0" transition Midspan section

1 1/2 "| 6 spcs. @ 10" max.(9 1/2 " average spacing)

Skew end plan

#4 "U9" bar

Gir

der

Dep

th-2

3/8

"

(Normal dimension,adjust first barfor skew)

EST. MIDSPANDEFLECTION

Gir

der

Mass

, K

ips

2"cl. w/8" web

2-#5 x cont. bars,stagger splices.

#4 "U1" bars at18" max. ctrs.

2-#5 x 2-6" epoxycoated dowels eachside projecting 12"out of beam end.

1-7 1/2 " w/7 1/2 " web

2-#5 x 2-6" epoxycoated dowels each sideprojecting 12" outof beam end.

1 3/4 "cl. w/7 1/2 " web

2"cl. w/8" web2-1 1/2 " w/7 1/2 " web

6"

1 3/4 "cl. w/7 1/2 " web

2"cl. w/8" web

#4 longit. btwn. ducts eachface of web when clear distancebtwn. ducts is 4" or greater.

7 @ 1-3"1 @ 1-0 3/4 "1 @ 10 1/2 "1 @ 8"

6"6"

4-9" 3-3"

3 @ 9"

3-3 3/8 "

1-

4"

#4 "U11" bar2

-1

1/2

"

2-

2"

1 3/4 " 9 @ 4" "a" @ 6"

5-0" end block

7-

0" B

I84

8-

0" B

I96

9-

0" B

I108

6"

#5 x 2-6" epoxycoated dowels btwn.post-tensioning ductseach side projecting12" out of beam end.

Note:

For temporary diaphragm

beam details, see dwg. BR350

BUILD - UP DECK DETAIL

END BLOCK END VIEW

STEM SECTION AT END BLOCK

END BLOCK SIDE ELEVATION

#4 "U11" BAR

#4 "U9" BAR

Gir

der

Nu

mb

er

Num

ber

Requir

ed

LT

. =

Lt.

Exte

rior

RT

. =

Rt.

Ex

teri

or

Sp

an

ctr

. -

ctr

.B

en

ts a

lon

g

Gir

der

{

"A

",

o-o

Gir

der

(Hor

iz. L

engt

haft

er

Sh

ort

en

ing

)

Concre

te S

trength

@ 2

8 D

ay

s, K

si

Concre

te S

trength

@ R

ele

ase

, K

si

Init

ial

Ten

sio

np

er

Str

an

d,

Kip

s

Num

ber

of

Str

ands

per

Gir

der

"N"

Fig

ure

Nu

mb

er f

or

Str

and P

att

ern

(Stir

rup

Leg)

StirrupSpaces

Negative ValueIndicates Backfrom Midspan

Diaphragm Ahead End (On Stationing)

En

d B

lock

Negative Value IndicatesPoint Beyond Girder End

Negative Value IndicatesPoint Beyond Girder End

Upward atRelease

Upward 3Months after

Release

Est

imat

ed

Sh

ort

enin

g 2

Wee

ks

aft

er

Rele

ase

#4 "U9" bars at 8" max.

#4 "U9" bars @ 8" max.

W12 "U2" bars(galv.) at 6" alternate "U5" stirrups (1st., 3rd, 5th, and 7th).

2-#13 x cont. each side, stagger splice.

2-#6 x cont.each side,stagger splices.

SECTION A-A

W12 "U2" bars @ 6" ctrs. on 1st, 3rd, 5th and 7th stirrups (from girder ends).

8"

(Alternate A)One cable restraint at location

shown. After restraint is removed,

fill hole with concrete and finish

flush with surface of girder

(exterior girders only).

Minimum deck thickness. Thisdimension assumes girderfabrication and erection will meetthe required deck elevations. Incase of variations, lower girderto meet corrected elevation.

GIRDER RESTRAINT DIAGRAM

Snug fit prestressed girders against forms prior to diaphragm

pour. Keep restraints in place a min. of two days after

completion of diaphragm pour.

DE

T3

396

NOTE TO DESIGNER

Design girders using 3/4 " min.build-up over girders.

Ensure girder soffits are on level grade prior

to prestressing. Use build-up over girder to

compensate for the difference between deck

elevation and girder camber.

When the girder build-up exceeds 3" and/or

the girder stirrups extend less than 2" into

the deck, add #4 stirrup extensions.

Place stirrup extensions at each girder

stirrups and tie to the girder stirrup.

Where girder stirrup spacing is

6" or less, place stirrup

extentions @ 12" max.

#4 stirrup

extension

Note:Transport members in accordance with Section 00550.51 of theStandard Specifications for Highway Construction. Place membersno less than _____ days after casting.

NOTE TO DESIGNER

Remove note if 7 day transport and placementis okay without placement restrictions.

NOTE TO DESIGNER

End Blocks are typically notnecessary at continous bents.