INTERIOR BENTS BXB-38

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39.000'
1
19.500'
TABLE OF ESTIMATED
Quantities shown are based on an "H" value
of 36'.
19.500'
QUANTITIES
For each linear foot variation in
Bars V length, 1'-0"
Column Spacing
4.500'
2 Spa at 15.000' = 30.000'
Bars Z length, 15.740'
4.500'
Reinforcing Steel, 120 Lb
Class "C" Conc (Col), 0.785 CY
Beam Spacing
3.500'
4 Spa at 8.000' = 32.000'
3.500'
2
This standard may not be used for "H"
heights exceeding 36'.
C
L Beam #1
C
L Beam #5
C
L Structure
In areas of very
3'-0"
(Outside
1'-0"
1'-9" 1'-9"
3
Beams only)
3
Length
Weight
#11
38'- 6"
1,432
B
1
4
#11
37'- 0"
786
B
2
6
#11
12'- 0"
383
4
1 ‚"D
S
50
T
U
1'- 8"
28
#5
13'- 6"
704
10
#5
37'- 0"
386
2
#5
9'- 8"
Omit Dowels D at end of units. Adjust
20
V
30
#9
38'- 3"
3,902
Z
3
#3
583'- 0"
reinforcing steel total accordingly.
4
5
~
6
1'-0"
3'-6"
Size
7
standard.
3'-0"
Dowels D
Foundation Loads based on "H" = 36'.
Measured parallel to top of cap cross-slope.
Right and left elevations and locations are
7
C
L Bearing
Lb
8,299
Class "C" Concrete (Cap)
CY
17.8
Class "C" Concrete (Col)
CY
28.3
C
Measured along L of Bearing.
FOUNDATION LOADS
Span
Uniform Slope
A
T
between bearings
Average
3'-6"
A
Sym about
C
L Struct
A
S
~
3'-6"
U
B
B2
1
10 •"
Drilled
Pile Load (Tons/Pile)
Shaft
Loads
3 Pile
4 Pile
5 Pile
Ftg
Ftg
Ftg
143
51
39
32
155
55
42
34
50
166
59
45
37
55
178
62
48
39
Ft
Tons/Shaft
40
45
60
189
66
50
41
65
200
70
53
43
70
211
74
56
46
75
222
77
59
48
80
234
81
62
50
S
T
2 ‚"
(Typ)
Const Jt
V (Extend 2'-3"
5
4
C
L Cap & C
L Columns
PLAN
3'-6"
658
Reinforcing Steel
provided elsewhere.
(Typ)
85
245
85
64
52
90
256
88
67
54
95
267
92
70
57
100
278
96
73
59
105
289
100
75
61
Min into Cap)
B2
4"
B1
A
Bars S Spacing
3'-0"
19 Eq Spa = 12'-0"
"H" ~ See Bridge Layout
2
1'-6"
3'-0"
3"
Top of
Drilled Shaft
Z
Finished
and Right Bearing Seat Elevations with
wood float finish.
C
L Beam
3'-0"
GENERAL NOTES:
7
3'-0"
7
Designed according to AASHTO LRFD Specifications.
Concrete strength f'c = 3,600 psi.
All Cap reinforcing must be Grade 60.
Top of
or Footing
Galvanize dowel bars D.
6
Cap
~
in Channels
1'-0" Min
Grade Crossings
V
Level along a line perpendicular to
C
L Bent. Uniform slope between Left
6
Ground
Column and Drilled Shaft reinforcing may be Grade 40.
See Bridge Layout for foundation type, size and length.
8"
6" Min at
4 Eq Spa
SECTION A-A
See Foundation Detail standard FD for all foundation
details and notes.
Const Jt (Typ)
Bent selected must be based on the average span
length rounded up to the next 5 Ft increment.
These bent details may be used with Standard
See Bridge Layout
Dowel D ~ Galvanized
for foundation type.
1 ‚" Dia x 1'-8"
C
L Brg
in at
1 •" M
~
details.
SXB-38 only.
(smooth) at outside
See FD sheet for
HALF ELEVATION
HL93 LOADING
3
Bridge
Division
Standard
(Bearing surface must be clean
top and bottom
~
~
Pitch
One flat turn
3'-1 • "
(Typ)
INTERIOR BENTS
and free of all loose material
6"
6"
3'-3"
Place
perpendicular to top
BEARING SEAT DETAIL
3'-1 •"
"H" ~ See Layout
3'-1 •"
beams only.
of bearing seat.
2'-6"
before placing bearing pad.)
TYPE 5XB20 THRU 5XB40
PRESTR CONC X-BEAMS
38' ROADWAY
BXB-38
FILE:
BARS U
FILE:
DATE:
The use of this standard is governed by the "
Texas Engineering Practice Act"
. No warranty of any
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
No.
A
D 3
by the Engineer prior to the use of this
See "Bearing
DISCLAIM ER:
Bar
soft soil or where scour is anticipated,
allowable "H" heights must be evaluated
Seat Detail"
1
"H" value, make the following adjustments:
BARS S
BARS Z
C TxDOT
xbstde54.dgn
June 2011
DN:
JMH
CONT
SECT
CK: AM
JOB
DW:
JTR
CK: JMH
HIGHWAY
REVISIONS
DIST
COUNTY
SHEET NO.
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