RL_Crane_Fdn_T1860524-KI-14May2019_112561579.pdf

ABS Global Engineering 1701 City Plaza drive | Spring, TX 77389 USA

Task – T1860524 “ESSAYONS”, Class No. 8210213 Bath Iron Works Corporation, Hull: 402 Flag: United States of America

Attention: Mr. Gary Haberman, Bruce S. Rosenblatt & Associates LLC (WCN: 908618)

The documents shown in the attached list are reviewed for Load Line Conditions of

Assignment, in association with the FE Model provided, in accordance with the applicable requirements of the following:

· ABS Rules for Building & Classing Steel Vessels, 2019 (For Load Line Only)

Please note our review is based on the following conditions:

1 . The work is to be completed to the satisfaction of the attending ABS Surveyor.

2. The Load Line Conditions of Assignment are fully complied with.

3. Loading conditions as indicated in the ‘Pedestal Crane Installation Analysis’.

Please refer to the attached list of comments associated with this review.

Additionally, we have received your declaration stating that the materials used in the system indicated in the submittal are free from asbestos.

For any clarifications, contact Kho Iqbal at 281 877 6891 , (KIqbal@eagle.org).

Very truly yours, Roy H. Bleiberg Vice President of Engineering

Electronically Signed by: Eskinder Sebsibie

Electronically published by ABS Houston.

Reference T1860524, dated 14-MAY-2019.

mailto:KIqbal@eagle.org

ABS Global Engineering 1701 City Plaza drive | Spring, TX 77389 USA

Documents List

Drawing No.

Rev.

No.

Title Status

354-F330-01 4 Pedestal Crane Structural Mods Reviewed

354-F399-01 4 Pedestal Crane Installation

Analysis

Reviewed

Electronic copies of the documents, appropriately stamped, are available in the ABS My

Eagle Portal through Engineering Manager.

Comments List

Thread No Comment Text Facilities Action

S-001 354-F399-01-1 - Analysis Report , 354-F330-01-

2 - Pedestal Crane Structural Mods

402[Close] Technical

Web of deck transverse beams at Fr 74 and Fr 78 and Longitudinal girders were modeled with 24.125 in. depth, where these depths are indicated as 22.625 in. as per Plan 3-7D of drawing 354-F330-01 Rev 2 and Plan View 4-B of drawing 681-

700-180 Rev 3. We understand that the web depth of beams may be increased by half of the flange thickness on both sides when these are modeled as plate elements. Considering this, the web may be modeled with 23.625 in. depth. ABS has updated the model adjusting these web thicknesses (Please refer to Figs. 1 and

2 in the appendix of the review letter. After running this updated model, Von-Mises stress higher than the allowable values were identified in the transverse deck beam and COR-TEN Steel brackets (Please refer to Figs 3 to 5 in the appendix of the review letter). Please revise the drawing, re-run the FEA and resubmit.

Revised Drawing and FEA Report submitted satisfying comment closure. This comment has been closed.

Electronically published by ABS Houston.

Reference T1860524, dated 14-MAY-2019.