Amd 2 LQPGRP_C-501---.pdf
PDF 524 KB Posted
- Attached to
- Sluice Gate Installation at Lac qui Parle Dam
- Solicitation number
- W912ES20B0012
About this file
This drawing package pertains to a federal contract solicitation to replace sluice gates and install pier extensions at the Lac qui Parle Dam. The work involves constructing a dewatering box with bulkhead slots for pier extension construction, and replacing nine existing sluice gates and actuators with government furnished slide gates and actuators stored nearby. The contractor must detail connections and select structural members to design a cofferdam that can withstand at least 3 kips/ft of loading. All steel must be grade 50 or higher. Strut connections must support over 130 kips of thrust. The contractor may use the provided connection details but must confirm strength and compatibility for the chosen cofferdam elements. The drawing provides general notes on cofferdam assumptions, required elevations during construction, and critical member requirements.
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US Army Corps of Engineers
US Army Corps
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WALKWAY DECK
SUPPORT FROM
@ 7' MAX
1" DIA TIE ROD
PIER
CONCRETE
EXISTING
TIP EL 895 TIP EL 895 TIP EL 895
EL 940.6EL 940.6
EL 938.6
DESIGN
EL 938.6
DESIGN
EL 934.7
EL 933.3
EXCAVATION EL 911 EXCAVATION EL 911
ST. PAUL DISTRICT
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0 2' 4'1'0 2' 4'1'
CENTERLINE PIER
CENTERLINE PIER
0 1' 2'6"
0 1' 2'6"
WALL
EXISTING
WALL
EXISTING
BEAM
SUPPORTING
STRUT
BEAM
SUPPORTING
STRUT
BEAM
SUPPORTING
STRUT
OF BEAM
PLATE EACH SIDE
" STIFFENER2
OF BEAM
PLATE EACH SIDE
" STIFFENER2
OF BEAM
PLATE EACH SIDE
" STIFFENER2
EACH SIDE OF BEAM
GRADE 50, ONE ON
" PLATE2
1(2)
TYP
3 SIDES 4
TYP
3 SIDES 4
PIER
EXISTING
2"
2"
4"
TYP
T Y
P
1' 2'0 6"
A5
1' 2'0 6"
VARIES
T Y
P
" DIA A325 BOLT (TYP)4
STIFFENER PLATE (TYP)
STIFFENER PLATE
CONTACT
UNIFORM
GROUT FOR
PROVIDE THIN
A5
CONNECTION
DETAIL
12" MIN WITH EPOXY (TYP)
EMBED INTO CONCRETE
1" DIA A325 BOLT,
THE STRUT SUPPORTING BEAM.
CONNECTION SHALL MATCH THE WIDTH OF3.
" GROOVE WELDS ALL AROUND.8
" FILLET WELDS OR8
3WELDS SHALL BE 2.
ALL STEEL PLATES 1" THICK, GRADE 50.1.
NOTES:
1" DIA A325 BOLT (TYP)
12" MIN WITH EPOXY (TYP)
EMBED INTO CONCRETE
1" DIA A325 BOLT,
2 ROWS OF (5)
(SM = 55 CU IN MIN)
W16x36 WALE
(SM = 55 CU IN MIN)
W16x36 WALE
(SM = 55 CU IN MIN)
W16x36 WALE
(SM = 245 CU IN MIN)
SUPPORTING BEAM
W30x90 STRUT
MAX LENGTH = 20'
@ 10' MAX
STRUT PIPE SPACED
14" O.D. AND 1/2" THICK
MAX LENGTH = 55'
@ 10' MAX
STRUT PIPE SPACED
14" O.D. AND 1/2" THICK
(VARIES)
EL ~920
GRADE
EXISTING
(VARIES)
EL ~920
GRADE
EXISTING
(SM = 62 CU IN MIN PER FOOT)
SHEET PILE
(SM = 62 CU IN MIN PER FOOT)
SHEET PILE
PIER/WALL
EXISTING
EL 936
HEADWATER
CONSTRUCTION
COFFERDAM
MAXIMUM
EL 936
HEADWATER
CONSTRUCTION
COFFERDAM
MAXIMUM
PLATE
18"x18"x1"
EDGES)
(1.5" FROM PLATE
(4) 3/4" DIA BOLTS
1' 2'0 6"
PIER EXTENSION
STRUT
1' 2'0 6"
D1
STRUT TO W-BEAM CONNECTION (TYP)
D1
W-BEAM
D2
1' 2'0 6"
D2
STRUT TO W-BEAM CONNECTION (TYP)
SECTION
STRUT PIPE
14" O.D. AND 1/2" THICK
STRUT PIPE
14" O.D. AND 1/2" THICKSTIFFENERS (TYP)
" THICK PLATE2
STIFFENERS (TYP)
" THICK PLATE2
W-BEAM
A375 BOLTS
DIA4
3(4)
PLATE
" THICK2
115"x20"
C-107 C-106
D3
STRUT TO PIER CONNECTION
TYP
C-107
C-105
C3
(DETAIL ROTATED 90 DEGREES)
@ END PIER OF COFFERDAM
BEAM TO EXISTING PIER CONNECTION
A1
N-S UPSTREAM COFFERDAM
A2
E-W UPSTREAM COFFERDAM
A3
(DETAIL ROTATED 90 DEGREES)
@ MIDDLE PIER OF COFFERDAM
BEAM TO EXISTING PIER CONNECTION
DETAIL
PIER
EXISTING
6""8 51'-10
R 1'-
6"4
(SIM)
SEE DETAIL B5
(SIM)
SEE DETAIL B5
B5
CONNECTION
BELOW EL 932 BEFORE INSTALLATION OF THE STRUTS.
THE INTERIOR COFFERDAM WATER ELEVATION SHALL NOT BE LOWERED6.
ELEVATION IS ABOVE EL 936.
WORKERS SHALL ENTER THE COFFERDAM AREA IF HEADWATER
HEADWATER ELEVATION IS AT OR BELOW EL 936. UPON COMPLETION NO
EL 936). COFFERDAM INSTALLATION SHALL OCCUR ONLY IF THE
CONSTRUCTED UNDER NORMAL HEADWATER CONDITIONS (HEADWATER
THE DESIGN OF THE COFFERDAM ASSUMES THAT IT WILL BE5.
THE UPSTREAM COFFERDAM PLAN.
CONTRACTOR SHALL DETAIL THE CONNECTIONS AND INCLUDE IN
THE COFFERDAM ELEMENTS CHOSEN BY THE CONTRACTOR. THE
CONFIRM THE NECESSARY STRENGTH AND COMPATIBILITY WITH
CONTRACTOR MAY USE THE DETAILS OF C-501 AND C-502 BUT MUST
TYPICAL CONNECTIONS TO CONCRETE PIER. SEE C-501 AND C-502.C.
THAN 130 kips ALLOWABLE LOAD.
STRUT CONNECTIONS SHALL BE DESIGNED TO THRUST NO LESSB.
CONNECT EVERY OTHER SHEET TO WALE WITH (2) 1" DIA A325 BOLTS.A.
MEMBER SIZING.
CONTRACTOR TO DETAIL CONNECTIONS AND SELECT FINAL COFFERDAM4.
CRITICAL MEMBERS.
ALL STRUCTURAL STEEL SHOWN ON THIS SHEET SHALL BE FRACTURE3.
LOADING NO LESS THAN 3 kip/ft.
WALES, STRUTS, AND BEAMS SHALL BE DESIGNED FOR SHEET PILE 2.
ALL STEEL SHALL BE GRADE 50 OR HIGHER.1.
CONCRETE PIER
SHEET PILE OR
D1 TYP
" DIA A325 BOLTS4
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GENERAL SHEET NOTES:
| LQPGRP_C-501--- |
| References |
| Border, PW_WORKDIR:d0665721 |
| LQPGRP_Border_G-BSDxxx.dgn |
| A1-T, LQPGRP_C-501---.dgn, Default |
| A2-T, LQPGRP_C-501---.dgn, Default |
| A1-B, LQPGRP_C-501---.dgn, Default |
| A2-B, LQPGRP_C-501---.dgn, Default |
| D3, LQPGRP_C-501---.dgn, Default |
| C3, LQPGRP_C-501---.dgn, Default |
| A3, LQPGRP_C-501---.dgn, Default |
| A1-M, LQPGRP_C-501---.dgn, Default |
| B5, LQPGRP_C-501---.dgn, Default |
| A5, LQPGRP_C-501---.dgn, Default |
| A2-M, LQPGRP_C-501---.dgn, Default |
| D1, LQPGRP_C-501---.dgn, Default |
| D2, LQPGRP_C-501---.dgn, Default |
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