MALF-901-A_B (Draft).PDF

PDF 698 KB Posted

Attached to
Request for Information (RFI) - ACM Lifting Frames
Solicitation number
W912EQ25SS0010
Issued by

About this file

The provided file is a detailed engineering draft document for a Lifting Arm Pivot Weldment (Part Number MALF-901-A) designed for an Articulated Concrete Mattress (ACM) lifting frame. The technical drawing, created by G2 Engineering Consulting on 8/24/2022, contains five sheets of comprehensive design specifications for a complex weldment component. The design is for ASTM A572 Grade 50 Steel and includes precise dimensional drawings, multiple component part numbers (MALF-901-001 through MALF-901-013), and critical manufacturing notes covering material certification, welding requirements, and non-destructive testing protocols.

Key technical specifications include stringent material and welding requirements, such as ABS material certification, compliance with AWS D1.1 Structural Welding Code, and mandatory non-destructive testing methods including volumetric radiographic testing, ultrasonic testing, and surface inspection techniques. The drawing specifies tight tolerances (angular: 0.5 degrees, decimal tolerances from 0.05 to 0.005), and includes detailed views, sections, and dimensional callouts for each component. The draft is marked confidential and is part of a U.S. Army Corps of Engineers project for procuring four new ACM lifting frames to support revetment mat loading operations, with integration planned for a new robotic ACM laying barge scheduled for delivery in December 2025.

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Text version

1'9"

1'5-7/16"

2-5/8"

8"

217.51 8.563

204.76 8.062

8"

10-7/16"

10-1/4"

6-1/4"

1"

19.84 .781

6"

8-1/4"

NOTE:

UNLESS OTHERWISE SPECIFIED ALL MATEIRALS USED IN CONSTRUCTION OF COMPONETNS ARE TO HAVE ABS MATERIAL CERTIFICATION IN ACCORDINATE WITH THE •

APPLICAPLE SECIONS OF "ABS RULES FOR MATERIALS AND WLEDING (PART 2)"

MATERIALS ARE TO BE FURNISHED WITH CERTIFICATES ISSUED BY THE MILL OR MATERIAL MANUFACTURER, INDICATING, AS A MINIMUM AND AS APPLICABLE, THE • MATERIAL SPECIFICATION, GRADE, PROCESS OF MANUFACTURE, HEAT TREATMENT DETAILS, MECHANICAL AND CHEMICAL PROPERTIES, IDENTIFICATION NUMBERS, AND

TEST RESULTS.

ALL WELDING SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF AWS D1.1 "STRUCTURAL WELDING CODE - STEEL"• ALL WELDS SHALL BE TESTED USING EITHER VOLUMETRIC RADIOGRAPHIC TESTING (RT) OR ULTRASONIC TESTING (UT) METHODS OR SURFACE NDT TECNIQUES INCLUDING • MAGNETIC PARTICLE INSPECTION (MPI), PENETRANT TESTING (PT), EDDY CURRENT (EC) OR ALTERNATING CURRENT FIELD MEASURMENT (AFCM) CRITICAL WELDS ARE TO BE SUBJECTED TO THE FOLLOWING NONDESTRUCTIVE TESTING TO THE SATISFACTION OF THE ATTENDING SURVEYOR PRIOR TO PROOF LOAD •

TESTING:

100% VOLUMETRIC NDT OF ALL CRITICAL BUTT WELDS•

100% SUFACE NDT ON BOTH SIDES OF CRITICAL FILLET WELDS•

DRAWN BY:

THE INFORMATION CONTAINED IN THIS DRAWING IS CONSIDERED

CONFIDENTIAL. CONTENT SHOULD NOT BE DISTRIBUTED WITHOUT CONSENT

DIMENSIONS ARE IN INCHES

TOLERANCES:

ANGULAR: MACH .5 DEG

ONE PLACE DECIMAL .05

TWO PLACE DECIMAL .01

THREE PLACE DECIMAL .005

MATERIAL

SEE NOTES

PART NUMBER: REV

SHEET 1 OF 5

MALF-901-A

DO NOT SCALE

LIFTING ARM PIVOT, WELDMENT

ggoldman

FINISH

SEE NOTES

CREATED: 8/24/2022

SIZE

AUNLESS OTHERWISE SPECIFIED

A A

B B

C C

D D

G2 ENGINEERING

CONSULTING

DRAFT

NOTE:

UNLESS OTHERWISE SPECIFIED ALL MATEIRALS USED IN CONSTRUCTION OF COMPONETNS ARE TO HAVE ABS MATERIAL CERTIFICATION IN ACCORDINATE WITH THE •

APPLICAPLE SECIONS OF "ABS RULES FOR MATERIALS AND WLEDING (PART 2)"

MATERIALS ARE TO BE FURNISHED WITH CERTIFICATES ISSUED BY THE MILL OR MATERIAL MANUFACTURER, INDICATING, AS A MINIMUM AND AS APPLICABLE, THE • MATERIAL SPECIFICATION, GRADE, PROCESS OF MANUFACTURE, HEAT TREATMENT DETAILS, MECHANICAL AND CHEMICAL PROPERTIES, IDENTIFICATION NUMBERS, AND

TEST RESULTS.

ALL WELDING SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF AWS D1.1 "STRUCTURAL WELDING CODE - STEEL"• ALL WELDS SHALL BE TESTED USING EITHER VOLUMETRIC RADIOGRAPHIC TESTING (RT) OR ULTRASONIC TESTING (UT) METHODS OR SURFACE NDT TECNIQUES INCLUDING • MAGNETIC PARTICLE INSPECTION (MPI), PENETRANT TESTING (PT), EDDY CURRENT (EC) OR ALTERNATING CURRENT FIELD MEASURMENT (AFCM) CRITICAL WELDS ARE TO BE SUBJECTED TO THE FOLLOWING NONDESTRUCTIVE TESTING TO THE SATISFACTION OF THE ATTENDING SURVEYOR PRIOR TO PROOF LOAD •

TESTING:

ITEM

NO. PART NUMBER QTY.

1 MALF-901-001 1

2 MALF-901-002 1

3 MALF-901-003 2

4 MALF-901-004 4

5 MALF-901-005 2

6 MALF-901-006 1

7 MALF-901-007 1

8 MALF-901-008 1

9 MALF-901-009 1

10 MALF-901-010 1

11 MALF-901-011 1

12 MALF-901-007-B 1

13 MALF-901-013 1

DRAWN BY:

THE INFORMATION CONTAINED IN THIS DRAWING IS CONSIDERED

CONFIDENTIAL. CONTENT SHOULD NOT BE DISTRIBUTED WITHOUT CONSENT

DIMENSIONS ARE IN INCHES

TOLERANCES:

ANGULAR: MACH .5 DEG

ONE PLACE DECIMAL .05

TWO PLACE DECIMAL .01

THREE PLACE DECIMAL .005

MATERIAL

SEE NOTES

PART NUMBER: REV

SHEET 2 OF 5

MALF-901-A

DO NOT SCALE

LIFTING ARM PIVOT, WELDMENT

ggoldman

FINISH

SEE NOTES

CREATED: 8/24/2022

SIZE

AUNLESS OTHERWISE SPECIFIED

A A

B B

C C

D D

G2 ENGINEERING

2-5/8"

217.51 8.563

8"

204.76 8.062

A

7"

3-1/2"

A

B

.201 5.11 1"

TAP 1/4"-20

2-3/4"

B

B

DETAIL A

SCALE 1 : 4

61.00+

0.20 0.00

2.402+ .008 0"

52.00 2.047

60.00+

0.51 0.00

2.362+ .020 0"

3/8"

SECTION B-B

SCALE 1 : 4

NOTE:

UNLESS OTHERWISE SPECIFIED ALL MATEIRALS USED IN CONSTRUCTION OF COMPONETNS ARE TO HAVE ABS MATERIAL CERTIFICATION IN ACCORDINATE WITH THE •

APPLICAPLE SECIONS OF "ABS RULES FOR MATERIALS AND WLEDING (PART 2)"

MATERIALS ARE TO BE FURNISHED WITH CERTIFICATES ISSUED BY THE MILL OR MATERIAL MANUFACTURER, INDICATING, AS A MINIMUM AND AS APPLICABLE, THE • MATERIAL SPECIFICATION, GRADE, PROCESS OF MANUFACTURE, HEAT TREATMENT DETAILS, MECHANICAL AND CHEMICAL PROPERTIES, IDENTIFICATION NUMBERS, AND

TEST RESULTS.

ALL WELDING SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF AWS D1.1 "STRUCTURAL WELDING CODE - STEEL"• ALL WELDS SHALL BE TESTED USING EITHER VOLUMETRIC RADIOGRAPHIC TESTING (RT) OR ULTRASONIC TESTING (UT) METHODS OR SURFACE NDT TECNIQUES INCLUDING • MAGNETIC PARTICLE INSPECTION (MPI), PENETRANT TESTING (PT), EDDY CURRENT (EC) OR ALTERNATING CURRENT FIELD MEASURMENT (AFCM) CRITICAL WELDS ARE TO BE SUBJECTED TO THE FOLLOWING NONDESTRUCTIVE TESTING TO THE SATISFACTION OF THE ATTENDING SURVEYOR PRIOR TO PROOF LOAD •

TESTING:

NOTE:

POST MACHINE PROCESS TO OCCUR AFTER ALL

WELDS ARE COMPLETED AND INSPECTED AS PER

SPECIFICATION

DRAWN BY:

THE INFORMATION CONTAINED IN THIS DRAWING IS CONSIDERED

CONFIDENTIAL. CONTENT SHOULD NOT BE DISTRIBUTED WITHOUT CONSENT

DIMENSIONS ARE IN INCHES

TOLERANCES:

ANGULAR: MACH .5 DEG

ONE PLACE DECIMAL .05

TWO PLACE DECIMAL .01

THREE PLACE DECIMAL .005

MATERIAL

SEE NOTES

PART NUMBER: REV

SHEET 3 OF 5

MALF-901-A

DO NOT SCALE

LIFTING ARM PIVOT, WELDMENT

ggoldman

FINISH

SEE NOTES

CREATED: 8/24/2022

SIZE

AUNLESS OTHERWISE SPECIFIED

A A

B B

C C

D D

G2 ENGINEERING

1'2-5/8"

5-1/2"

3/8"

MALF-901-001

7.490

5-1/2"

3/8"

6.232

3/4"

54° 105° 4"

53.52 2.107

1/2"

8"

2"

1"

1"

3/8"

1'3-1/2"

97°

8"

R2"

75°

134.67 5.302

3-1/2"

284.19 11.188

207.99 8.188

9-7/16"

8"

3/8"

1'3-1/2"

214.34 8.438

3/8"

R1"

111.99 4.409

143.72 5.658

3/8"

323.69 12.744

145.98 5.747

1-1/2"

1/2" 30°

R1/2"

DO

W

N

.1

4° R

MALF-901-002

MALF-901-003

MALF-901-004

MALF-901-005

MALF-901-006 MALF-901-007-A

(MALF-901-007-B MIRROR)

DRAWN BY:

THE INFORMATION CONTAINED IN THIS DRAWING IS CONSIDERED

CONFIDENTIAL. CONTENT SHOULD NOT BE DISTRIBUTED WITHOUT CONSENT

DIMENSIONS ARE IN INCHES

TOLERANCES:

ANGULAR: MACH .5 DEG

ONE PLACE DECIMAL .05

TWO PLACE DECIMAL .01

THREE PLACE DECIMAL .005

MATERIAL

ASTM A572 Grade 50 Steel

PART NUMBER: REV

SHEET 4 OF 5

SEE SHEET

DO NOT SCALE

LIFTING ARM PIVOT, WELDMENT

ggoldman

FINISH

UNFINISHED

CREATED: 8/24/2022

SIZE

AUNLESS OTHERWISE SPECIFIED

A A

B B

C C

D D

G2 ENGINEERING

104.72 4.123

3/8"

7.918

5-1/2"

3/8"

.781 THRU

10-1/4"

8"

1/2"

1/2"

3/8"

7-1/2"

3-1/2"

.726MIN

5-1/2"

1'2-7/8"

3/8"

MALF-901-008

MALF-901-009

MALF-901-010

MALF-901-011

MALF-901-012

DRAWN BY:

THE INFORMATION CONTAINED IN THIS DRAWING IS CONSIDERED

CONFIDENTIAL. CONTENT SHOULD NOT BE DISTRIBUTED WITHOUT CONSENT

DIMENSIONS ARE IN INCHES

TOLERANCES:

ANGULAR: MACH .5 DEG

ONE PLACE DECIMAL .05

TWO PLACE DECIMAL .01

THREE PLACE DECIMAL .005

MATERIAL

ASTM A572 Grade 50 Steel

PART NUMBER: REV

SHEET 5 OF 5

SEE SHEET

DO NOT SCALE

LIFTING ARM PIVOT, WELDMENT

ggoldman

FINISH

UNFINISHED

CREATED: 8/24/2022

SIZE

AUNLESS OTHERWISE SPECIFIED

A A

B B

C C

D D

G2 ENGINEERING

MALF-901-A
Drawing View1
Drawing View2
Drawing View3
Drawing View4
MALF-901-A-BOM
Drawing View29
MALF-901-B
Drawing View30
Drawing View31
Detail View A (1 : 4)
Section View B-B
WELDMENT COMPONENTS
Drawing View5
Drawing View6
Drawing View7
Drawing View8
Drawing View9
Drawing View10
Drawing View11
Drawing View12
Drawing View13
Drawing View14
Drawing View15
Drawing View16
Drawing View17
Drawing View18
WELDMENT COMPONENTS(2)
Drawing View19
Drawing View20
Drawing View21
Drawing View22
Drawing View23
Drawing View24
Drawing View25
Drawing View26
Drawing View27
Drawing View28

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