T1 Transformer Support Drawings.pdf

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Attached to
Dworshak Transformer Disconnect Supports Federal contract opportunity
Solicitation number
W912EF24Q0022
Issued by
Department of the Army Corps of Engineers Engineering District Walla Walla

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Written by GovTribe AI ·

This document contains engineering drawings for the Disconnect Support Replacement Powerhouse T1 Transformer project at the Dworshak Dam and Reservoir in Idaho and Washington. The drawings detail the fabrication and assembly of various structural components, including a bottom assembly, upper assembly, brace assembly, lightning arrestor assembly, and jack assembly, required to replace the existing transformer disconnect supports. The total estimated weight of the assembled components is 3,108.31 lbs. The project is being solicited by the U.S. Army Corps of Engineers, Walla Walla District under Solicitation Number W912EF24Q0022. The solicitation seeks proposals for the fabrication and installation of the new disconnect support system. No additional details on the procurement, such as set-asides, pricing terms, or award dates, are provided in the document.

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US Army Corps of Engineers

B2

SCALE:

DISCONNECT SUPPORT ASSEMBLY

N.T.S.

BOTTOM ASSEMBLY PER S-501

UPPER ASSEMBLY PER S-502

BRACE ASSEMBLY PER S-503

LIGHTNING ARRESTOR ASSEMBLY PER S-504

JACK ASSEMBLY PER S-505

(2) EXISTING LIGHTNING ARRESTOR ASSEMBLY

NOTE: (3) TOTAL DISCONNECT SUPPORT ASSEMBLIES REQUIRED. NOTE: (1) JACK ASSEMBLY REQUIRED. THE LIGHTNING ARRESTOR ASSEMBLIES WILL BE

UTILIZED FROM EXISTING ONES OR THE (3) NEW ONES BEING FABRICATED

B9

SCALE:

TEMPORARY JACKING ASSEMBLY

N.T.S.

CONNECTION HARDWARE

QTY DESCRIPTION MATERIAL ASTM

66 GALVANIZED WASHER FOR 3/4" ø BOLT STEEL ASTM F436

66 GALVANIZED NUT FOR 3/4" ø BOLT STEEL ASTM A563

60 GALVANIZED 3/4" ø A325 BOLT X 4" LG STEEL ASTM F3125

6 GALVANIZED 3/4" ø A325 BOLT X 9" LG STEEL ASTM F3125

6 GALVANIZED WASHER FOR 7/8" ø BOLT STEEL ASTM F436

6 GALVANIZED NUT FOR 7/8" ø BOLT STEEL ASTM A563

6 GALVANIZED 7/8" ø A325 BOLT X 9" LG STEEL ASTM F3125

9 GALVANIZED WASHER FOR 1" ø BOLT STEEL ASTM F436

9 GALVANIZED NUT FOR 1" ø BOLT STEEL ASTM A563

9 GALVANIZED 1" ø A325 BOLT X 4" LG STEEL ASTM F3125

12 ZINC-PLATED 3/4" ø X 4-3/4" LG EXPANSION ANCHOR STEEL N/A

12 ZINC-PLATED 3/4" ø X 12" LG EXPANSION ANCHOR STEEL N/A

1. WEEP HOLES NOTED ON DRAWING SHALL BE 1" n IN COLUMNS AND 1/2"n IN

OTHER MEMBERS FOR H.D.G.. WEEP HOLES SPECIFIED IN THE DRAWINGS ARE TO

ALLOW FOR DRAINAGE OF THE HSS MEMBERS DURING USE, NOT FOR H.D.

PRESSURE AND NEED TO BE LOCATED AT LOW POINTS TO ALLOW FOR DRAINAGE.

2. ANY ADDITIONAL HOLES REQUIRED BY THE HOT DIP GALVANIZER MUST BE

PLUGGED PER THE SPECIFICATION. HOLES FOR H.D. DO NOT NEED TO BE

LOCATED NEAR THE LOW POINTS.

ABBREVIATIONS:

EA - EACH

H.D. - HOT DIP

H.D.G. - HOT DIP GALVANIZED

N.T.S. - NOT TO SCALE

TYP - TYPICAL

W.H. - WEEP HOLES

GENERAL NOTES

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TOP

SIDE

PARTS LIST

SHEET

WEIGHT

(LBS)

ASTMMATERIALDESCRIPTIONQTYITEM

63.78ASTM A572SteelSPLICE PLATE11

28.53ASTM A500SteelBRACE - HSS 6X6X1/422

441.44ASTM A500SteelCOLUMN - HSS 6X6X1/423

57.14ASTM A572SteelBOTTOM PLATE14

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US Army Corps of Engineers

F7

SCALE:

SPLICE PLATE

3" = 1'-0"

A7

SCALE:

BOTTOM PLATE

3" = 1'-0" n1"TYP (6) PLACES

A14

SCALE:

BRACE - HSS 6X6X1/4

3" = 1'-0"

HSS 6X6X1/4

1/4" n13/16"TYP (8) PLACES

3/16

3/16

TYP

TYP

3/16

TYP

2'-0"

0 1' 2' 3' 0 3" 6" 9"

12"

0 3" 6" 9" 12"

0 3" 6" 9"

12"

A1

SCALE:

BOTTOM ASSEMBLY

3/4" = 1'-0"

HSS6X6X1/4, TYP

CONNECTS TO UPPER ASSEMBLY.

CONNECTION TO USE (8) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

0'-0"

1 1/2"

6 1/2"

8"

0 3/4"

0'-0"

EXISTING BOLTS / NUTS / WASHERS

TO BE RE-USED AT THIS LOCATION.

1. ALL ITEMS TO BE GALVANIZED AFTER FABRICATION.

2. FABRICATOR SHALL LOCATE AND DRILL 1/2" HOLES

IN TUBES FOR DRAINAGE DURING GALVANIZING. SEE NOTES ON S-101

FOR ADDITIONAL INFORMATION.

L11

L6

SCALE:

BOTTOM PLATE LAYOUT

1-1/2" = 1'-0"

L11

SCALE:

SPLICE PLATE LAYOUT

1-1/2" = 1'-0"

L6

Total Assembly Weight: 1060.86lb

0'-0"

1 1/2"

6 1/2"

8"

0'-0"

4"

6 1/2"

8"

0'-0"

1 1/2"

4"

6 1/2"

8"

0'-0"

6"

W.H. EA SIDE OF COL

W.H. EA SIDE OF COL

W.H.

W.H.

W.H.

W.H.

0 6" 1' 2'

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WEIGHT

(LBS)

ASTMMATERIALDESCRIPTIONQTYITEM

63.78ASTM A572SteelSPLICE PLATE15

17.43ASTM A572SteelSUPPORT PLATE26

28.53ASTM A500SteelBRACE - HSS 6X6X1/427

24.45ASTM A572SteelBRACE BASE PLATE28

141.07ASTM A500SteelCOLUMN - HSS6X6X1/429

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US Army Corps of Engineers

2'-0"

A14

SCALE:

SUPPORT PLATE

3" = 1'-0"

J14

SCALE:

BRACE BASE PLATE

3" = 1'-0" n13/16"TYP, (4) PLACES n1"

A1

SCALE:

UPPER ASSEMBLY

1-1/2" = 1'-0"

0 6" 1' 2'

0 3" 6" 9"

12"

0 3" 6" 9"

12"

3/16

TYP

3/16

3/16

TYP

TYP

E14

SCALE:

SPLICE PLATE

3" = 1'-0" 0 3" 6" 9" 12" n13/16"TYP, (8) PLACES

CONNECTS TO BOTTOM ASSEMBLY

CONNECTION TO USE (8) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

CONNECTS TO BRACE ASSEMBLY

CONNECTION TO USE (4) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

CONNECTS TO EXISTING HORIZONTAL STRUCTURE

CONNECTION TO USE (1) 7/8"n A325

GALVANIZED BOLTS AND HARDWARE

3/16

(3/16)

PJP

CONNECTS TO BRACE ASSEMBLY

CONNECTION TO USE (4) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

Total Assembly Weight: 486.74lb

9"

0'-0"

1 1/2"

7 1/2"

0 3/4"

0'-0"

0'-0"

1 1/2"

6 1/2"

8"

0'-0"

0 3/4"

0'-0"

3 1/4"

6 1/2"

0'-0"

0 1/2"

3 1/4"

6 1/2"

0'-0"

4 1/2"

9"

0'-0"

3 1/4"

6 1/2"

C8

L8

G8

C8

CONNECTION TO SPLICE PLATE

1-1/2" = 1'-0"

0'-0"

1 1/2"

4"

6 1/2"

8"

G8

SCALE:

CONNECTION TO BRACE BASE PLATE

1-1/2" = 1'-0"

L8

SCALE:

CONNECTION TO SUPPORT PLATE

1-1/2" = 1'-0"

W.H. EA SIDE OF COL

W.H. EA SIDE OF COL

W.H.

W.H.

W.H. W.H.

0 6" 1' 2'

1. ALL ITEMS TO BE GALVANIZED AFTER FABRICATION.

2. FABRICATOR SHALL LOCATE AND DRILL 1/2" HOLES

IN TUBES FOR DRAINAGE DURING GALVANIZING. SEE NOTES ON S-101

FOR ADDITIONAL INFORMATION.

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3/16

TYP

TYP

3/16

TYP

6 1/8"

WEIGHT

(LBS)

ASTMMATERIALDESCRIPTIONQTYITEM

121.26ASTM A500SteelHORIZONTAL BRACE110

112.22ASTM A572SteelLIGHTNING ARRESTOR

SUPPORT PLATE

53.79ASTM A500SteelARRESTOR SUPPORT TUBE212

24.45ASTM A572SteelBRACE BASE PLATE213

151.4ASTM A500SteelANGLED BRACE114

5ASTM A572SteelBOLT PLATE215

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US Army Corps of Engineers

10"

OVERLAP

43°

A1

SCALE:

BRACE SUPPORT

1-1/2" = 1'-0"

H8

SCALE:

BRACE BASE PLATE

3" = 1'-0"

A13

SCALE:

ARRESTOR SUPPORT TUBES

3" = 1'-0"

F13

SCALE:

LIGHTNING ARRESTOR SUPPORT PLATE

3" = 1'-0" n13/16" (4) PLACES n13/16" THRU

R3"

R3"

3"

2'-0" n1 5/8" (3) PLACES

3"

3"

6'-5 1/4"

E8

SCALE:

BOLT PLATE

3" = 1'-0" n13/16"

8'-5 1/4"

TYP

3/16

TYP

3/16

TYP

3/16

TYP

3/16

TYP

3/16

TYP

3/16

TYP

3/16

TYP

CONNECTS TO UPPER ASSEMBLY (2) PLACES

EACH CONNECTION TO USE (4) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

CONNECTS TO LIGHTNING ARRESTOR ASSEMBLY

CONNECTION TO USE (2) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

0 6" 1' 2'

0 3" 6" 9"

12"

0 3" 6" 9"

12"

0 3" 6" 9" 12"

0 3" 6" 9"

12"

3/16

TYP

Total Assembly Weight: 551.36lb

J5

F6

J5

PLATE TO ANGLED BRACE

1-1/2" = 1'-0"

0'-0"

3"

6"

0'-0"

0 1/2"

0'-0"

1 1/2"

7 1/2"

9"

0'-0"

0 3/4"

0'-0"

1 1/2"

4 1/2"

7 1/2"

9"

0'-0"

1 1/2"

4 1/2"

7 1/2"

9"

F6

SCALE:

PLATE TO HORIZONTAL BRACE

1-1/2" = 1'-0"

0 6" 1' 2'

0 6" 1' 2'

0'-0"

6"

0'-0"

3"

6"

W.H.

W.H.

W.H.

W.H.

CAP PL 1/4" TYP (5) PLACES

1. ALL ITEMS TO BE GALVANIZED AFTER FABRICATION.

2. FABRICATOR SHALL LOCATE AND DRILL 1/2" HOLES

IN TUBES FOR DRAINAGE DURING GALVANIZING. SEE NOTES ON S-101

FOR ADDITIONAL INFORMATION.

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S-503

6'-4 1/2"

6'-2 1/4"

WEIGHT

(LBS)

ASTMMATERIALDESCRIPTIONQTYITEM

68.89ASTM A572SteelBOTTOM PLATE116

462.44ASTM A500SteelCOLUMN - HSS6X6X1/4217

39.98ASTM A572SteelTOP PLATE118

22.19ASTM A500SteelSTIFFENER - HSS6X6X1/4319

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US Army Corps of Engineers

A2

SCALE:

LIGHTNING ARRESTOR SUPPORT

3/4" = 1'-0"

A8

SCALE:

BOTTOM PLATE

3" = 1'-0" n13/16"(2) PLACES

F8

SCALE:

STIFFENER - HSS6X6X1/4

3" = 1'-0"

J8

SCALE:

TOP PLATE

3" = 1'-0" n1" TYP (5) PLACES

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0 1' 2' 3'

CONNECTS TO BRACE ASSEMBLY

CONNECTION TO USE (2) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

0 3" 6" 9"

12"

0 3" 6" 9" 12"

0 3" 6" 9"

12"

HSS6X6X1/4, TYP

1/4"

HSS6X6X1/4, TYP

CONNECTS TO GROUND

CONNECTION TO USE EXISTING HARDWARE AT PERMANENT LOCATION

AT TEMPORARY LOCATION PROVIDE (2) 3/4"n X 4-3/4" LG EXPANSION ANCHORS

TO SECURE SUPPORT TO CONCRETE.

(McMASTER-CARR #91578A216) OR EQUIVALENT. (12) TOTAL ANCHORS

Total Assembly Weight: 1,078.13 lb

A17

F17

0'-0"

3 1/2"

7"

0'-0"

0 3/4"

0'-0"

2"

5"

8"

10"

0'-0"

0 3/4"

0'-0"

2"

5"

8"

10"

0'-0"

3 1/2"

7"

F17

SCALE:

TOP PLATE

1-1/2" = 1'-0"

A17

SCALE:

BOTTOM PLATE

1-1/2" = 1'-0"

0'-0"

6"

W.H. EA SIDE OF COL

W.H. EA SIDE OF COL

W.H.

W.H.

W.H.

W.H.

W.H.

1. ALL ITEMS TO BE GALVANIZED AFTER FABRICATION.

2. FABRICATOR SHALL LOCATE AND DRILL 1/2" HOLES

IN TUBES FOR DRAINAGE DURING GALVANIZING. SEE NOTES ON S-101

FOR ADDITIONAL INFORMATION.

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S-504

3/16

3/16

TYP

TYP

3/16

TYP

WEIGHT

(LBS)

ASTMMATERIALDESCRIPTIONQTYITEM

8.75ASTM A572STEELSTIFFENER PLATE420

145.71ASTM A992STEELW12X65121

123.67ASTM A500STEELHSS 8X4X3/8222

55.13ASTM A992STEELW12X22123

N/AN/ASTEEL12 TON SCREW JACK124

B

C

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F

G

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SHEET ID

D A

T E

D E

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R I P

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N M

A R

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I S

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A T

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S O

L I C

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A T

I O

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N

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1 2 3 4

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6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

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S I G

N E

D

B

Y

D R

A W

N

B

Y

C H

E C

K E

D

B

Y

S U

B M

I T

T E

D

B

Y

P

N

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U S

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C O

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U P

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P O

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O U

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N O

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L E

A R

W A

T E

R

R

I V

E R

I D

A H

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D W

O R

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E R

V O

I R

A N

S I

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W A

L L

A

W

A L

L A

W

A S

H I N

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O N

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W A

L L

A

W

A L

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T R

I C

T

B

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C H

A M

B

M

E A

C H

A M

US Army Corps of Engineers

5" 5"

3/16

TYP

3/16

TYP

3/16

3/16

TYP

n13/16" n13/16"

A13

SCALE:

STIFFENER PLATE

6" = 1'-0"

G13

SCALE:

SCREW JACK

N.T.S.

n4 3/4"

A1

SCALE:

JACK ASSEMBLY

3" = 1'-0"

1'-8"

0 3" 6" 9"

12" 0 1" 2" 3" 4"

CONNECTS TO LIGHTNING ARRESTOR ASSEMBLY

CONNECTION TO USE (4) 3/4"n A325

GALVANIZED BOLTS AND HARDWARE

THESE BOLTS WILL BE SHORTER THAN THE TYPICAL CONNECTION BOLTS.

Total Assembly Weight: 483.18lb

0'-0"

1 1/2"

9 3/8"

10 7/8"

12 TON SCREW JACK

6 5/32" 6 5/32"

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S-505

File details come from the government source that posted it. Updated .