STEEL TRUSS TYPE E (50 FT - 140 FT) - mdotcf.state.mi.us ed .U nA STM F436 fl w h r ock ig 908 C 20....
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Transcript of STEEL TRUSS TYPE E (50 FT - 140 FT) - mdotcf.state.mi.us ed .U nA STM F436 fl w h r ock ig 908 C 20....
ISOMETRIC VIEW
Back truss chord
Bottom truss chord
\ Truss
Drilled shaft
\ Span (Even number of panels)
\ Span (Odd number of panels)
Top truss chord
* see camber diagram sheet 2
Truss
depth
3"
14140’
135’ 14
130’ 13
125’ 13
120’ 12
115’ 12
110’ 11
105’ 11
100’ 10
95’ 10
90’ 9
85’ 9
80’ 8
10’-0"
7’-6"
10’-0"
7’-6"
10’-0"
7’-6"
10’-0"
7’-6"
10’-0"
7’-6"
10’-0"
7’-6"
10’-0"
75’ 8
70’ 7
65’ 7
7’-6"
10’-0"
7’-6"
60’ 6
55’ 6
50’ 5
10’-0"
7’-6"
10’-0"
Truss Data
8’-0"
6’-0"
42"
38"
2"
2"
1"
*
3 1/8"
2 7/8"
2 5/8"
2 1/2"
2 1/4"
2 1/8"
1 7/8"
1 3/4"
1 1/2"
1 3/8"
1 1/4"
1 1/8"
1 1/8"
7/8"
3/4"
5/8"
Length
Truss
Panels
of
Number
Length
Panel
End
Chord)
(Chord-to-
Truss Depth
Diameter
Plate
Base
Midpoint
at
Camber
(See details sheets 3 & 4 of 10)
Column truss connection
sheet 10 of 10)
(See details
Chord splice
column
\ Right
sheets 5 & 6 of 10)
Base plate (See details (See chart below)
varies (Typ.)
End panel
angles (Typ.)
Truss web
grade
finished
Top of
column
\ Left 10’- 0" (Typ.)
Intermediate panel
STEEL TRUSS TYPE E
(50 FT - 140 FT)
1 10
09/15/11 08/11/11SIGN-360-A
DHD
AJU
DEPARTMENT DIRECTOR MICHIGAN DEPARTMENT OF TRANSPORTATION
OF
SHEET
PLAN DATEF.H.W.A. APPROVALCHECKED BY:
DRAWN BY:
Michigan Department of Transportation
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLAN FOR
APPROVED BY:
APPROVED BY:
Kirk T. Steudle
BY
PREPARED
DESIGN DIVISION
DIRECTOR, BUREAU OF FIELD SERVICES
DIRECTOR, BUREAU OF HIGHWAY DEVELOPMENT
CAMBER DIAGRAM
Camber
1/2 Span 1/2 Span
2 10
09/15/11 08/11/11SIGN-360-A
per foot.
Warpage in the base plate shall not exceed 1/16"23.
all bolts are installed.
110’ and 140’. No signs shall be erected until
connection plate for span lengths between
50’ and 105’, and 4 bolts minimum per chord-column
minimum per chord-column connection plate for span lengths between
prior to letting traffic resume under the erected truss shall be: 2 bolts
During the erection process the minimum number of bolts required to be installed 22.
The estimated weight of the truss is 195 lbs/ft.21.
the MDOT Standard Specifications for Construction under each nut for splice connections.
stated. Use an ASTM F436 flat washer and a lock washer according to Section 908.09.C of
Use 7/8"! ASTM A325 bolts for all connections. Provide 1"! holes unless otherwise 20.
All steel plates shall be ASTM A709, Grade 36.19.
Web angles shall be ASTM A36 l 5"x 5"x 7/16" or l 5" x 5"x 1/2".18.
6 5/8"x 0.432".
HSS 6"! HSSx 0.375" or ASTM A500, Grade B HSS 6 5/8"x 0.432" or ASTM A500, Grade B HSS
Chord sections shall be ASTM A500, Grade B HSS 6"! x 0.500", ASTM A519-4140 annealed 17.
feet to 140 feet trusses shall be 24"! x 1.219".
feet trusses shall be 24"! x 0.938", 24"! x 0.969" may be substituted. Sections for 110
Column sections shall be ASTM A53, Grade B or API-5l-X42. sections for 50 feet to 105 16.
See current MDOT Sign Support Typical Plan Sign-700-Series for sign connection.15.
See current MDOT Sign Support Typical Plan Sign-340-Series for sign foundation.14.
Blast clean base plates, stiffeners, and all weldments prior to galvanizing.13.
Perform ultrasonic inspection of butt welded splices in column and chord members.12.
on this typical will require approved shop drawings before fabrication.
field splice \ 1’-6" min. to the gusset plate edge. Any deviation from the details shown
Field splices may be placed along the structure to facilitate fabrication. Place 11.
feet.
For truss lengths 110 feet to 140 feet, minimum sign height with aluminum beam is 9 10.
feet.
For truss lengths 50 feet to 105 feet, minimum sign height with aluminum beam is 7 9.
Maximum projection of the sign beyond the top chord is 6 feet.8.
Do not lift the trusses by the web members.7.
washer and lock washer under each nut and tightened to a snug tight condition.
Subsection 707.03.D. except at splice connections. Splice connections shall have a flat
Tighten all high strength galvanized bolts by the turn of the nut method according to 6.
Hot-dip galvanize all truss components prior to bolted assembly.5.
Specifications for Construction".
All structural steel, bolts, welding and galvanizing shall be per "MDOT Standard 4.
Type I signs shall not be used on the same truss as variable message signs.3.
truss.
Maximum sign area is 1200 square feet. Signs should not project past the ends of the 2.
Structural Supports for Highway signs, Luminaries and Traffic Signals, current Edition.
The design of this structure is based on the AASHTO Standard Specifications for 1.
NOTES:
NOT TO SCALE
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
VIEW A-A
TRUSS CONNECTION DETAIL
RIGHT COLUMN
(Typ.)
45°
(LEFT COLUMN SIMILAR)
Top truss chord
\ Gusset plates
Bott truss chord
\ Top chord
Level 45°
\ Column
\ Column
Base plate
Optional splice
1"
Cap
6"
6"
12
"
(M
in.)
30°
3/4" Plate (Typ.)
l5 x 5 x 7/16
5/8" Plate (Typ.)
1/4
1/4
6 1/2"
3/8"
1/4
1/4
3/4" Plate (Typ.)
sheet 10 of 10)
Column cap (See details 2
6’- 3
" (M
ax
.)
(Typ.*)
Chord
\ Bottom
angles (Typ.)
Truss web
See Detail A
1/4"
(Typ.)
l5 x 5 x 7/16
chord
Back truss
chord
\ Truss
(50’ to 105’ T
russ)
(1
10
’ to
1
40
’ T
ru
ss)
Stop 1/4" short of corner clip
* Wrap weld around outside edge,
std. chill ring
1/4"x 2" Plate or
BUTT-WELDED SPLICE
DETAIL OF OPTIONALplates omitted for clarity)
(Web members and connection
(Typ.*)
A
B B
A
2’- 5 1/4"
3’- 3
3
/4
"
6’- 1
5
/8
" C
lear b
etw
een
p
lates
8’- 1
5
/8
" C
lear b
etw
een
p
lates
50
’ to
1
05
tru
ss
6’- 0
" F
or
11
0’ to
1
40
’ tru
ss
8’- 0
" F
or
Truss depth
2’- 7" for 6’- 0"
0" Truss depth
3’- 5 1/2" for 8’-
3 10
09/15/11 08/11/11SIGN-360-A
NOT TO SCALE
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
SECTION B-B
CHORD-COLUMN CONNECTION PLATE DETAILS
\ Bolts
\ Plate
24"! Pipe
\ Column
\ Column
Truss chord
2’- 0"!
\ Chord
1"
1’- 1"
3’- 4"
12
"
1"
1’- 1"
2’- 3"
4"
4"
4"
4"
4"
4"
2"
6"
6"
2’- 3"
5/8" Plate
3/4"
1’- 1
1
/2
"1’- 1 1/2"
1/2"
1 3/4"1 3/4"
1/2"
3/4"
4 3/4" 4 3/4"
6 1/2"
\ 3/4" Plate and \ truss chord
1’- 2 1/2"
1 1/2"
3’- 4 1/2"
1 1/2"
1 1/
2"
1’- 1 1/2"
1 1/2"
1 1/2"
1 3/4"1 3/4"
1 3/4" 9 1/2" 15/16"! Hole (typ.)
4 3/4" 4 3/4"
\ 3/4" Plate
(Typ.)
bottom of >
\ Chord &
gusset >
\ Chord & angle
Truss web
plates omitted for clarity)
(Web members and connection
DETAIL A
3’- 1 1/2" for 6’- 0" Truss depth
4’- 0" for 8’- 0" Truss depth
1’ - 1 1/2"
3/8
3/8
2’-7" for 6’- 0" Truss depth
3’- 5 1/2" for 8’- 0" Truss depth
4 10
under the bolt head and the nut.
nut. ASTM F436 flat washers required
A plate washer is required under the
2 1/8"x 15/16" Slotted hole (Typ.)
2-1/2"
1-1/2"
3-1/2"
1-3/4"
Plate Washer Detail
(2-1/2" x 3-1/2" x 5/16")
15/16"!
09/15/11 08/11/11SIGN-360-A
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
SECTION C-C
DETAIL B
PLAN VIEW 38" BASE PLATE
DETAIL C
Column O.D. 24"
See Detail B
Base plate
Column
\ Column
Drilled shaft
30°
See Detail C
Column wall
*
Continuous
*
Drilled shaft
4" 3"
7"
1"
1"
1"
3"
1"
(Typ.)
3"
1/4"
1’- 4 1/2"
3/8 3/8
5/16
5/8
5/8
1/4
1/4"x 1" min
Back up ring
plate
1" Stiffener
stop weld 1/4" around corner clip
* Wrap weld around outside edge
plate (typ.)
1" Stiffener
nut (Typ.)
Leveling
bolt (Typ.)
\ Anchor
grind smooth
Weld and
\ 32" ! Bolt circle
plate (Typ.)
1" Stiffener
for 2"! bolts
2 3/16" ! Holes
Base plate 38" ! x 3"
6" ! Hole
\ Column (Typ.)
1/4"
(Typ.)
15°
C C
5 10
09/15/11 08/11/11SIGN-360-A
NOT TO SCALE
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
PLAN VIEW 42" BASE PLATE
SECTION D-D
Column O.D. 24"
Anchor bolt (Typ.)
\ Column
\ 36"! Bolt circle
Drilled shaft
(Typ.)
6" 3"
3"
3"
1/4"
1’- 1
0"
(sheet 5)
See Detail C
1" Plate (Typ.)
(sheet 5)
See Detail B
nut (Typ.)
Leveling
Drilled shaft
(Typ.)
11.25°
for 2" ! bolts
2 3/16"! Holes
\ Column (Typ.)
6" ! Hole
Base plate 42" ! x 3"
D D
6 10
09/15/11 08/11/11SIGN-360-A
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
VIEW E-E
FRONT OF TRUSS ELEVATION
TYPICAL SECTION OF TRUSS
(BACK TRUSS CHORD AND ATTACHED ANGLES NOT SHOWN FOR CLARITY)
Back truss chord
Top truss chord
Bottom truss chord
\ Truss
30°
30°
\ Top chord
\ Back truss chord
\ Top truss chord
\ Top truss chord
\ Column
\ Column
\ Column\ Column
(VIEW F-F SIMILAR)
6’-0
" O
r 8
’-0
"
plates
\ Connection
chord
\ Bottom
number of panels)
\ Span (odd
number of panels)
\ Span (Even See Detail D
plates
\ Connection
plates
\ Connection
See Detail J
See Detail FSee Detail E
See Detail H
See Detail G
angles (Typ.)
Truss web
truss chord
\ Bottom See Detail K
number of panels)
\ Span (Even number of panels)
\ Span (Odd See Detail L
angles (Typ.)
Truss web
F
E
F
E6’- 0" For 50’ to 105’ span
8’- 0" For 110’ to 140’ span
50’ to 105’ span
3’- 0
" F
or
110’ to 140’ span
4’- 0
" F
or
6’- 0" F
or 50’ to 105’ span
8’- 0
" F
or 1
10
’ to
1
40
’ sp
an
50’ to 105’ span
3’- 0
" F
or
110’ to 140’ span
4’- 0
" F
or
5’-2 3/8" For 6’- 0" truss depth
6’-11 1/8" For 8’- 0" truss depth
6’- 0
" o
r 8
’- 0
"
7 10
09/15/11 08/11/11SIGN-360-A
NOT TO SCALE
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
\ Chord
\ Chord
\ Chord
\ Chord
\ Chord
\ Chord
\ Bolts
\ Bolts
\ Bolts
\ Bolts (Typ.)
\ Chord
\ Bolts (typ.)
\ Bolts (Typ.)
\ Chord
*
*
*
*
*
*
** See sheet 9 of 10 for alternate connection details.
* Dimension typical for all connection details.
\ Column
\ Column
90°
(Min.)
(M
in
.)
(Min.)
10"
(Min.)
3"
3"
(Min.)
(Min.)
(Min.)
2’- 6"
(Min.)
1’- 8"
(Min.)
1"
(Min.)
10"
(Min.)1"
(Min.)
(Min.)
10"
1’- 8"
1’- 8"
1’-8"
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1 1/2"
1/2" Gusset >
1/2" Gusset >
2 1/4"
1 1/2"
1 1/2"
angle (Typ.)
Truss web
angle (Typ.)
Truss web
angle
Truss web
to plane of view
plate shown skewed
(see details sheet 4 of 10)
Column connection >
angle (Typ.)
Truss web
angle
Truss web
(see details sheet 4 of 10)
Column connection >
angle
Truss web
angle (Typ.)
Truss web
(Typ.)
\ Bolts
(Typ.)
\ Bolts angle
Truss web
DETAIL F **
DETAIL D **
DETAIL H **
DETAIL G **
DETAIL E **
DETAIL J **
DETAIL K ** DETAIL L **
8 10
09/15/11 08/11/11SIGN-360-A
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
\ Chord
\ Chord
\ Chord
\ Chord
* Dimension typical for all connection details.
\ Chord
\ Chord
\ Chord
\ Chord
\ Column
\ Column
90° Neutral axis of angle
2’- 6"
(Min.)
10"
(Min.)
1’- 8"
(Min.)
4"
8"
1’- 8"
(Min.)
1’- 8"
(Min.)
1’- 8"
(Min.)
8"
4"
(Typ.)
(Typ.)
6" 1"
(Min.)
10"
(Min.)1"
(Min.)
10"
(Min.)
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
1/2" Gusset >
9 10
1 3/8"
1
3/8"
(Min.)
angle (Typ.)
Truss web
(Min.)
of angle (Typ.)
Neutral axis
ALTERNATE DETAIL D
angle (Typ.)
Truss web
(Min.)
(Min.)
of angle (Typ.)
Neutral axis
ALTERNATE DETAIL E
angle
Truss web
of angle
Neutral axis
to plane of view
plate shown skewed
(See details sheet 4 of 10)
Column connection >
ALTERNATE DETAIL F
angle (Typ.)
Truss web
ALTERNATE DETAIL G
of angle (Typ.)
Neutral axis
angle
Truss web
of angle
Neutral axis
ALTERNATE DETAIL H
(M
in
.)
(See details sheet 4 of 10)
Column connection >
angle
Truss web
ALTERNATE DETAIL J
of angle (Typ.)
Neutral axis
angle (Typ.)
Truss web
ALTERNATE DETAIL K ALTERNATE DETAIL L
angle
Truss web
of angle
Neutral axis
09/15/11 08/11/11SIGN-360-A
NOT TO SCALE
NOTE: THE ORIGINAL SIGNED COPY IS KEPT ON FILE AT THE MICHIGAN DEPARTMENT OF TRANSPORTATION.
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF
COLUMN CAP DETAIL
PLUG DETAIL
SECTION H-H
CHORD SPLICE CONNECTION DETAILS
ELEVATION
SECTION G-G
\ Column
(USE AT EACH END OF BACK CHORD)
(Typ.)
\ Chord
\ Chord
\ Chord
\ Splice
\ Column
3 Spa @ 3"= 9" 3" 3" 3 Spa @ 3"= 9"
3" 7 Spa @ 3"= 1’- 9" 3"
3"
1/2" Hex head bolt
1/4"
1/2"
1/4" Cap plate
L1 1/2 x 1 1/2 x 1/4
3/16"
1/4" Plate
1 1/2"
l6 x 6 x 1/2
1 1/2"
2 3/16"
3 13/16"
between pipes
1/8" Max. gap
G
G
7/8" ! Bolt w/lock washer (Typ.)
for 1/2" ! bolt
or tap hole in angle
tack weld 1/2" hex nut
9/16" ! Hole
HH
w/lock washer (Typ.)
7/8" ! Bolt (Typ.)
09/15/11 08/11/11SIGN-360-A
10 10
MICHIGAN DEPARTMENT OF TRANSPORTATION
BUREAU OF HIGHWAY DEVELOPMENT STANDARD PLANPLAN DATEF.H.W.A. APPROVAL
SHEET
OF