3'-11 ƒ"
1 Bars Z are required for beams topped with a
3'-7 ƒ"
2"
1'-2"
3"
1'-2"
2'-3 ƒ" Void
12" Max Spa
(Typ)
tendon
4"
2
11"
6
with Bars N
interior diaphragms.
A
2'-3 • "
4
Extend beam
5
90° at conventional Interior Bents.
Ends of beams
shall be vertical at Abutment backwall and Inverted
Tee Bent Stems.
Optional
locate between
strands
Blockouts required at ends of all beams.
reinforcement into blockouts.
Drain holes ~
6
chamfer
3
Showing void modification required in exterior beams
not topped with a Min 5" cast-in-place concrete slab.
strip
5"
See standard BBRAO for void modification dimensions.
8
7
5"
1'-0"
5"
D
See "Blockout, Interior
Diaphragm, and Drain Details".
5"
3'-4"
N
Place drain holes (1" Dia PVC Sch 40 Pipe) as shown
in all beam void corners including each side of
2
Tendon hole
Form 3" Dia
See standard BBPT for
details.
3
C
L Transverse
Based on 150 pcf weight density of concrete.
Weight
of end blocks and interior diaphragms is not included.
5"
C
C
U
8
Add chamfers as shown when beam length is over
100 ft.
Locate drain holes at toe of chamfers.
U
N
TYPICAL SECTION ~ TYPE 4B40
4'-11 ƒ"
U
4'-7 ƒ"
2"
3"
5"
2"
3'-3 ƒ" Void
5"
3"
B
PARTIAL PLAN
5 •"
Bars D ~ 7 Eq Spa
(Typ)
(Showing Type 4B40)
Z
2"
Z 1
Z 1
1
2" Clr
C
Top
cast (webs and top beam flange) is placed. Vibrate
as required to ensure consolidation between the two
casts.
1 ‚" clear cover to reinforcement is required
unless noted otherwise.
See standard BBRAS or BBRAO for railing
anchorage at bridge edges to be cast in beams.
Optional
5"
chamfer
8
strip
locate between
strands
An equal area of welded wire reinforcement (WWR)
meeting the requirements of ASTM A1064 may be
substituted for Bars A, B, C, and D.
These details are applicable for skews up to 30
3
degrees only.
Chamfer bottom beam corners ƒ" or round to
C
U
C.G. of
a ƒ" radius.
U
HL93 LOADING
Beam
SHEET 1 OF 3
TYPICAL SECTION ~ TYPE 5B40
M
Bridge
Division
Standard
BEAM PROPERTIES
"e"
Yb
The
flange) must remain plastic until the second stage
Void
2
5"
Yt
All reinforcing steel
concrete in the first stage cast (bottom beam
Drain holes ~
U
Use Class H (HPC) if
Two-stage monolithic casting is required.
Bott
D
Slab
5 • "
Cover
1 • "Clr
1'-0 • "
Use Class H concrete.
Slab
B
Designed according to AASHTO LRFD Specifications.
must be Grade 60.
2'-5 • "
1
5"
Z
5"
A
2'-3 • "
3'-4"
Blockout 4
Tendon hole
GENERAL NOTES:
required elsewhere in plans.
5"
tendon 2
1'-0"
4
6
1'-0"
Blockout
7"
Internal Void
B
C
L Transverse
C
L Transverse
End of
Cover
D
11"
3"
4"
A
1'-4" Min
Type 4B40
5
PRESTRESSED CONCRETE
Type 5B40
over
100 feet
100 feet
or less
N
BOX BEAM DETAILS
over
100 feet
(TYPE B40)
100 feet
or less
8
8
C.G. of
strands
Bars M ~ 1 •"
C
ELEVATION
Area
in 2
Y
top
in
Y
bott
in
FILE:
I
DATE:
The use of this standard is governed by the "
Texas Engineering Practice Act"
. No warranty of any
M ~ space
of this standard to other form ats or for incorrect results or dam ages resulting from its use.
kind is m ade by TxDOT for any purpose whatsoever. TxDOT assum es no responsibility for the conversion
U
B
holes in interior beams.
Slab
1
See "Blockout,
Interior Diaphragm, and Drain Details".
5 • "
Z
3"
C
L Transverse
2 ES =
D
Cover
Slab
A
beams in staged constructed bridges.
Top
12" Max Spa
Cast interior diaphragms in exterior
beams and beams that serve temporarily as exterior
Void
3 •"
8 ‚"
DISCLAIM ER:
tendons.
2" Clr
8 ‚"
Bars N ~ 2 ‚"
See span details for number and spacing of transverse
Z 1
1
Z
1'-0 • "
2 ES =
Post-tensioning tendons are required for beams not
topped with a Min 5" cast-in-place concrete slab.
39 Spaces at 6" = 19'-6"
2"
3 •"
Bars D ~ 5 Eq Spa
8 ‚"
Bars U ~ 2 ‚"
2
2'-5 • "
2 ES =
cast-in-place concrete slab only.
3"
12" Max Spa
5 •"
Bars C ~ 2 ‚"
5"
Bott
1
5"
Cover
Bars Z
2"
6" Max Spa
1 • "Clr
Bars A & B
in 4
918.8
21.31
18.69
943.8
1044.8
1069.8
21.63
21.07
21.36
18.37
18.93
18.64
BB-B40
bbstds04.dgn
FILE:
C TxDOT
176,607
180,159
215,300
219,007
957
983
1,088
1,114
December, 2006
DN:
TxDOT
CONT
SECT
CK: TxDOT
JOB
DW:
TxDOT
CK: TxDOT
HIGHWAY
REVISIONS
Weight7
lb/ft
01-12:
Bars Z.
DIST
COUNTY
SHEET NO.
Bars A & B
N 12
12" Max Spa
Bars C
12" Max Spa
39 Spaces at 6" = 19'-6"
2"
Eq Spa
Bars AL, CL & U
at 6" Max
&
M
,M
CC
U
8
=
1
‚"
•"
C
L Transverse
tendon 2
AL 9
CL
9
Z
1
5 Eq Spa
rs
Ba
ES
2
U
5"
AA
CC
A
N
10
MM Spa
Bars M or
C
Bottom
4
5
7 8
11 11
8 7
5 4
Strands 11
SECTION THRU BLOCKOUT ~ TYPE 4B40
(Showing End Mat Reinforcing)
N 12
D
7"
M or MM
2"
MM
U
Z
3"
0
Skew
Angle
1
B
PARTIAL PLAN ~ 15° SKEW
Bars A & B
Bars U & Z
6" Max Spa
1
12" Max Spa
Bars C
U
12" Max Spa
39 Spaces at 6" = 19'-6"
5"
C
L Transverse
tendon
Z
CL 9
2
1
10
Bottom
MM Spa
Bars M or
=
ES
"
‚
"
8
•
1
AL 9
6"
U
Eq Spa at 6" Max
Bars AL, CL & U
,
CC
s
U
r
&
Ba
MM
C or CC
5 Eq Spa
(Showing Type 4B40)
(use for skew angles of 15° or less)
2
5
9
4
8
13
13
12
9
12
Strands 11
5
8
4
SECTION THRU BLOCKOUT ~ TYPE 5B40
U
(Showing End Mat Reinforcing)
D
1
Bars Z are required for beams topped with a cast-in-place concrete slab only.
2
Post-tensioning tendons are required for beams not topped with a Min 5" cast-in-place concrete slab.
See span details for number and spacing of transverse tendons.
Cast interior diaphragms in exterior
beams and beams that serve temporarily as exterior beams in staged constructed bridges.
Interior Diaphragm, and Drain Details".
MM
Form 3" Dia holes in interior beams.
See "Blockout,
See Standard BBPT for
details.
9
Cut as required to maintain one inch clear between bars.
C
N
10 Bars M may be adjusted vertically as required
SHEET 2 OF 3
HL93 LOADING
to avoid pretensioning strands in web.
Bridge
Division
Standard
A
11 See standard BBND or appropriate
Prestressed Concrete Box Beam
Standard Designs sheet for
AA
PRESTRESSED CONCRETE
locations of pretensioning strands.
12 For Type 4B40 Box Beams:
BOX BEAM DETAILS
Bars N
may be reduced to 4 bars per row
CC
(TYPE B40)
when beam design contains fewer
than 22 strands.
In this case,
place Bars N at the 5-6 and
U
8-9 strand locations.
For Type 5B40 Box Beams:
3"
Z
B
1
Bars N
BB-B40
may be reduced to 5 bars per row
when beam design contains fewer
FILE:
0
DATE:
The use of this standard is governed by the "
Texas Engineering Practice Act"
. No warranty of any
C or CC
U
D
of this standard to other form ats or for incorrect results or dam ages resulting from its use.
kind is m ade by TxDOT for any purpose whatsoever. TxDOT assum es no responsibility for the conversion
U
DISCLAIM ER:
D
M or MM
7"
Bars U & Z
6" Max Spa
1
Skew
Angle
bbstds04.dgn
FILE:
PARTIAL PLAN ~ 30° SKEW
(Showing Type 4B40)
(use for skew angles greater than
15° and less than or equal to 30°)
than 28 strands.
In this case,
place Bars N at the 4-5, 9-10
and 14-14 strand locations.
C TxDOT
December, 2006
DN:
TxDOT
CONT
SECT
CK: TxDOT
JOB
DW:
TxDOT
CK: TxDOT
HIGHWAY
REVISIONS
01-12:
Bars Z.
DIST
COUNTY
SHEET NO.
2'-8 ƒ"
cos 0
Type 4B40
2'-8 ƒ"
Type 4B40
Type 4B40
2'-8 ƒ" (Max)
Type 5B40
3'-8 ƒ" (Max)
3'-8 ƒ"
3'-8 ƒ"
Type 5B40
cos 0
Type 5B40
9
1'-6"
(Min)
C
L Interior Diaphragm and
C
L 1 •" Diameter hole
1'-10"
3'-0"
Bars CL
3'-0"
Bars AL
1'-10"
Bars CC
3'-0"
Bars C
Bars AA
1'-10"
End
of Void
Min
BARS A & C (#4)
BARS AA & CC (#4)
6"
Beam Length minus 3"
Type 4B40
3'-4"
Type 5B40
4'-4"
Permiss
Splice
Fascia side
3" 4 †" 3"
6"
2'-2"
Min
BARS D (#5)
See Detail "A"
of exterior beam
BARS AL & CL (#4)
6 • "
1'-4"
between
"
-0
t
1'
ou
k
c
o
4
Bl
(Typ)
2"
)
yp
(T
Limits
strands
"
10
Locate
Permissible splices to
BARS B (#4)
BARS E (#4)
be placed in middle
third of span
BLOCKOUT, INTERIOR DIAPHRAGM AND DRAIN DETAILS
2'-7 •"
Type 5B40
3'-7 •"
6"
Type 4B40
3"
6 •"
3"
2'-7 •"
formed recess ~
6"
7"
4" square
6 •"
6"
(Showing 30° skew)
taper sides
Type 4B40
cos 0
3'-7 •"
ˆ" per inch
F
E
BARS F (#4)
cos 0
Type 5B40
BARS M (#4)
5" (Typ) 13
ANCHORAGE DETAIL
DETAIL A
"
ƒ
7
14
1'-3"
4 •"
POST-TENSION
2'-6 • "
14
BARS MM (#4)
Type 4B34
2'-8 ƒ"
Type 5B34
3'-8 ƒ"
1'-5"
1'-1 •"
BARS N (#4)
BARS U (#4)
9"
8"
5 • "
1'-3"
5 •"
cos 0
1'-3"
5 •"
F
1'-8 • "
E
5 • "
of this standard to other form ats or for incorrect results or dam ages resulting from its use.
Block
0
BARS Z (#4)
1
1
Bars Z are required for beams topped with a cast-in-place concrete slab only.
At fabricator's option, Bars Z
2
transverse tendons.
See span details for number and spacing of
Cast interior diaphragms in exterior beams and beams
that serve temporarily as exterior beams in staged constructed bridges.
3" Dia holes in interior beams.
Details".
3
pairs may be fabricated using
Post-tensioning tendons are required for beams not topped with a Min 5"
cast-in-place concrete slab.
Form
one continuous bar.
If this
option is used, Bars B at Bar Z
locations (only) may be omitted.
See "Blockout, Interior Diaphragm, and Drain
See standard BBPT for details.
Place drain holes (1" Dia PVC Sch 40 Pipe) as shown in all beam void corners
including each side of interior diaphragms.
SHEET 3 OF 3
HL93 LOADING
See "Blockout, Interior Diaphragm,
Bridge
Division
Standard
and Drain Details".
4
Blockouts required at ends of all beams.
Extend beam reinforcement into blockouts.
9
Cut as required to maintain one inch clear between bars.
13 5" (Typ) or sufficient depth to provide 1" Cover on cut-off tendon.
PRESTRESSED CONCRETE
BOX BEAM DETAILS
See BBPT for
details.
14 Dimension will vary slightly with skew.
(TYPE B40)
Adjust as necessary.
BB-B40
bbstds04.dgn
FILE:
FILE:
C TxDOT
DATE:
The use of this standard is governed by the "
Texas Engineering Practice Act"
. No warranty of any
3
0
kind is m ade by TxDOT for any purpose whatsoever. TxDOT assum es no responsibility for the conversion
bottom slab
(parallel to beam ends) 2
of beam
DISCLAIM ER:
Drain holes in
Bars A
Top edge
December, 2006
DN:
TxDOT
CONT
SECT
CK: TxDOT
JOB
DW:
TxDOT
CK: TxDOT
HIGHWAY
REVISIONS
01-12:
Bars Z.
DIST
COUNTY
SHEET NO.