COMMENT RESOLUTION SHEET

PROJECT TITLE : SGE CAPACITY & RELIABILITY PROJECT CLIENT : SCHLUMBERGER

P.O No. TGB5000291A

DOCUMENT NUMBER : C1306 V01 ME CA 0004‐ ‐ ‐ ‐ DOCUMENT REVISION : 01

DOCUMENT DESCRIPTION : MECHANICAL DESIGN CALCULATIONS ‐ STRUCTURAL (INPLACE AND LIFTING) ANALYSIS

CRS NUMBER : C1306-CRS-001

DATE : 09-10-2014

Comment No.

Reference / Section Schlumberger Comments NASH RESPONSE SLB Response Status

1 Page -3Does vendor have any instruction to useAmerican code? CSA design criteria refers toBS codes (BS 5950 for steel structure)

Code has been revised as per latest CSA design criteria Doc.No -

QT-ST-2016Open

2 Page -3 References to be presented in this documentReference documents has been updated in the report - Refer clause 1.1 P.No.4

3 Page -16If CSA design criteria is referenced then thedynamic amplification factors differ from onesused here.

Updated the DAF as per CSA design criteria which is given in the report - Refer clause 3.1.8, P.No 17.

4 Page -16No load combination is associated with loadcases 7 & 8. !!

Considered only for transportation condition and not added in load combination.

5 Page -26

All internal connections between elements areconsidered moment connection in STAAD model that means vendor has to design them for bending moment but it has to be emphasized that having moment connection is not associated with just designing bolts for bending moments, it has something to do also with transferring tension/ compression in flange to the support element that means enough stiffening to be provided for flangeso any rotation in connection can generate themoment in connection., in general adding a rows of bolts out of section footprint accomodate this requirement. Vendor has to clarify this here. For example column connections to beams are moment connections and changing them to simple connections changes the stresses value and also leads to more deflection in beams.

In the STAAD analysis internal connections between members are considered as moment connections since web and flanges of the beam are connected rigidly to column/beam elements.

In the current revision moments are released in the ends

COMMENT RESOLUTION SHEET

Comment No.

Reference / Section Schlumberger Comments NASH RESPONSE SLB Response Status

6 Page -26

No design parameter is defined in STAAD model, in general the the distance between points to support elements against buckling is not the element itself length, if this is not defined by used then the STAAD considers the elementlength by default that is not a safe assumptionalways.

Design parameters defined in the STAAD REV-0/REV-1 report page no 312. DJ1, DJ2 are assigned for starting and end point of the beam member length. Actual member length is assigned for Ly, Lz parameters in the current revision.

7 Page -32

In relevant drawing as shown in following ISOview(S9GE-4-0704-01-00077, REV 3), lifting lug location differs from the one in STAAD model. On the other hand the above-mentioned document as stated in itself is supersededby C1306-V01-PK-GA-0002 but this referenced drawing can't be found on POL

Lifting Lug location needs to be updated in the drawing.

8 Page -37

The whole FOS to design to ultimate strength for pad eye, elements directly attached to pad eye, and other elements are 4, 3.6 and 3,respectively; these factors include the Dynamic Amplification Factors(DAF) and load factors

FOS 4 has been updated in the Lifting Lug analysis.

9 Page

No command line for doing design based on AISC can be found in STAAD input file so it is the question how the design is done based on that code, maybe this is not the latest STAAD model, This also applies to the other STAAD model for lifting presented in this calc note

As per CSA design criteria we have revised the design based on BS 5950-2000 code. The command line for BS code can be found in the latest report of P.No 359

10Since the skid in indoor mounted, We have not consider snow load.Slb to confirm

Open

11

Main member used in the design based on the market availability : HEA 240, HEB 240 ……..Slb to confirm

Open

COMMENT RESOLUTION SHEET

Prepared by G.VeeraPandian (Design Engineer)

Signature

Date 09.10.2014

Reviewed by Udhayakumar (GM-Engineering)

Signature

Date 09.10.2014