HomeMy WebLinkAbout4225-12M
H
C,
Distribution reinforcement
V
Note:
All longitudinal bars
shall be #4 @ 18"c.c.,
except bottom face
of top slab when
distribution reinforce-
ment is required.
Longitudinal bars
TYPICAL RC BOX SECTION
NOT TO SCALE
T2/,)
T2
TOP OF WALL
T2
LONGITUDINAL JOINT
20 Bar
BASE OF WALL
TRANSVERSE JOINTS
1/3
CONSTRUCTION JOINT DETAILS
NOT TO SCALE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13
14.
15.
16
17.
STRUCTURAL NOTES
DIMENSIONS FROM FACE OF CONCRETE TO STEEL ARE
TO CENTER OF BAR, UNLESS OTHERWISE SHOWN.
CONCRETE DIMENSIONS SHALL BE MEASURED
HORIZONTALLY OR VERTICALLY ON THE PROFILE, AND
PARALLEL TO OR AT RIGHT ANGLES (OR RADIALLY)
TO CENTER LINE OF CONDUIT ON THE PLAN EXCEPT AS
OTHERWISE SHOWN.
ALL BAR BENDS AND HOOKS SHALL CONFORM TO THE
AMERICAN CONCRETE INSTITUTE'S "BUILDING CODE
REQUIREMENT FOR REINFORCED CONCRETE", LATEST
EDITION, SECTION 7.2.
TRANSVERSE CONSTRUCTION JOINTS SHALL NOT BE
PLACED WITHIN 30 INCHES OF MANHOLE OR JUNCTION
STRUCTURE OPENINGS.
TRANSVERSE CONSTRUCTION JOINTS IN WALLS AND
SLABS SHALL BE IN THE SAME PLANE. NO
STAGGERING OF JOINTS WILL BE PERMITTED.
TRANSVERSE CONSTRUCTION JOINTS SHALL BE NORMAL
OR RADIAL TO THE CENTER LINE OF CONSTRUCTION.
THE TRANSVERSE REINFORCING BARS SHALL TERMINATE
ONE AND ONE-HALF INCHES FROM THE CONCRETE
SURFACES UNLESS OTHERWISE SHOWN ON THE
STRUCTURAL DETAILS.
EXPOSED SURFACES OF CONCRETE MEMBERS SHALL BE
ROUNDED OR BEVELED.
NO SPLICES IN TRANSVERSE BARS REINFORCEMENT
WILL BE PERMITTED OTHER THAN SHOWN ON THE
DRAWING WITHOUT APPROVAL OF THE ENGINEER. NO
MORE THAN TWO SPLICES WILL BE PERMITTED IN ANY
LONGITUDINAL BAR BETWEEN TRANSVERSE JOINTS.
SPLICES SHALL BE STAGGERED.
LONGITUDINAL BARS SHALL BE LAPPED 40 BAR
DIAMETERS AT SPLICES. TRANSVERSE BARS SHALL
BE LAPPED 48 BAR DIAMETERS AT SPLICES.
LONGITUDINAL BARS SHALL BE CONTINUOUS AND
EXTEND THROUGH ALL CONSTRUCTION JOINTS.
UNLESS OTHERWISE SHOWN ON THE DRAWINGS,
TRANSVERSE CONSTRUCTION JOINTS (IN BOTH SLABS
AND WALLS), SHALL BE PLACED AT THE END OF EACH
POUR, BUT THE SPACING THEREOF SHALL NOT EXCEED
50 FEET NOR BE LESS THAN 10 FEET.
UNLESS OTHERWISE SHOWN ON THE DETAILS, IN
CURVED SECTIONS TRANSVERSE BARS SHALL BE PLACED
RADIALLY. THE SPACING OF STRAIGHT TRANSVERSE
BARS IN TOP AND BOTTOM SLABS SHALL BE MEASURED
AT THE CENTER LINE OF CONSTRUCTION. THE SPACING
OF STRAIGHT BARS AND L -BARS IN WALLS SHALL BE
MEASURED BETWEEN THE VERTICAL LEGS OF BARS.
AT THE BEGINNING AND ENDING OF ALL POURS, A
CURTAIN OF REINFORCEMENT COMPOSED OF B, C,
C2, D, F, G, AND H BARS SHALL BE PLACED
THREE INCHES FROM THE TRANSVERSE CONSTRUCTION
JOINT.
D BARS MAY BE SPLICED 48 BAR DIAMETERS AT THE
LOWER LONGITUDINAL CONSTRUCTION JOINT, AT
CONTRACTOR'S OPTION.
IN ALL SECTIONS LAP C AND C2 BARS. THE
VERTICAL LENGTH OF C AND C2 HAS BEEN
CALCULATED FOR A FOUR -INCH STARTER WALL. IF
THE HEIGHT OF THE STARTER WALL IS VARIED,
THE VERTICAL LENGTH OF THE C AND C2 BARS SHALL
BE VARIED CORRESPONDINGLY SO AS TO MAINTAIN A
48 DIAMETER LAP BETWEEN THE TWO BARS. THE
LAPS SHALL BE BASED ON THE SMALLER BARS.
CONCRETE QUANTITIES ARE BASED ON A SIX -BY -SIX
INCH FILLET AND STEEL QUANTITIES DO NOT
INCLUDE ANY OPTIONAL SPLICES.
IF WALL THICKNESS IS SIX INCHES, PLACE
REINFORCEMENT AT THE CENTER LINE OF THE WALL.
STRUCTURAL DESIGN CRITERIA
L.A.C.F.C.D. STRUCTURAL DESIGN MANUAL
DATED APRIL 1982
LIVE LOAD
HS 20-44 unless otherwise noted
DEAD LOAD
Earth load per Marston's formula: w= 140 pcf
Ku=Ku'=0.165
Bd=Outside width of box plus 3 feet
Side earth 60 psf per foot of depth
Internal water pressure: 62.4 psf per foot of depth
Weight of concrete: 150 pcf
ALLOWABLE STRESSES
f'c=4000 psi at 28 days
fc =1800 psi
fs =24,000 psi
n =8
Shear and bond stresses per A.C.I. 318-63
BOX SECTION
1
2
3
Design Cover
10'
10'
8'
Width W
16'
14'
18'
Height H
8'
8'
7'
Top Slab Thickness T1
19.25"
1711
15.25"
Side Wall Thickness T2
12"
10.50"
12.50"
Bottom Slab Thickness T3
21.50"
18.50"
17"
Concrete Cover 3" Min. Y
3"
3"
3"
B
Bars
Bar No. & Spacing
#9 @ 8"
#9 @ 9"
#8 @ 8"
Length
17'-9"
15'-6"
19'-10"
B 1
Bars
Bar No. & Spacing
#4 @ 8"
#4 @ 9"
#5 @ 8"
Length
9'-1.5"
7-11.5"
10'-6.5"
C
Bars
Bar No. & Spacing
#4 @ 11"
#4 @ 14"
#6 @ 14"
Hor. Length
6'-9.5"
6'-2"
7-2.5"
Vert. Length
9'-9"
9-6.5"
7'-8.5"
C1
Bars
Bar No. & Spacing
#5 @ 11"
#5 @ 14"
#8 @ 14"
Hor. Length
2'-9.5"
2-5.5"
6'
Vert. Length
4'-10.5"
3'-10"
7'-8.5"
C2
Bars
Bar No. & Spacing
#5 @ 11"
#4 @ 14"
#6 @ 14"
Hor. Length
7'-4"
6'-2"
7'-2.5"
Vert. Length
11'-9.5"
4'-4"
4'-4.5"
C 3
Bars
Bar No. & Spacing
--
#4 @ 14"
#7 @ 14"
Hor. Length
--
2'-1.5"
2'-9"
Vert. Length
--
2'-9"
5'
D
Bars
Bar No. & Spacing
#4 @ 18"
#4 @ 18"
#4 @ 18"
Length
11'-10.5"
11'-5.5"
9'-5.5"
F
Bars
Bar No. & Spacing
#8 @ 10"
#9 @ 8"
#9 @ 8'
Length
17'-9"
15-6"
19'-10"
F 1
Bars
Bar No. & Spacinq
#8 @ 10"
#4 @ 8"
#5 @ 8"
Length
17'-9»
7'-8"
10'
G
Bars
Bar No. & Spacing
#4 @ 11"
#4 @ 14"
#6 @ 14"
Length
8'-0"
7'-0"
9'-0"
H
Bars
Bar No. & Spacing
#5 @ 11"
#4 @ 14"
#6 @ 14"
FLength
8'-0"
7'-0"
9'-0'
NUMBER OF LONGITUDINAL REINFORCEMENT # 4 BARS
includes eionTop Slab � orcen)
25
23
29
Bottom Slab
25
23
29
Side Walls
20
20
16
TOTAL
70
66
74
QUANTITIES
Concrete Cu. Yds./Lin. Ft.
2.89
2.28
2.58
Steel Lbs./Lin. Ft.
346.7
268.0
432.3
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