idbc-ts-vcstr-t100639-ng0028 - lir-12– weight control report

Banyu Urip Project

LIR-12 – WEIGHT & CENTER OF GRAVITY (COG) REPORT

VENDOR DOCUMENT NO. : IDBC-TS-VCSTR-T100639-NG0028 REQUISITION NO. : IDBC-TS-IXXER-C00002 PURCHASE ORDER NO. : 9533-IN-469-100639 PO DESCRIPTION : Pre-Fabricated Local Instrumen Room-LIR ITEM NO. : LIR 12 ITEM DESCRIPTION : Power Generation MATERIAL CLASSIFICATION : N/A

For SECL Vendor For TPEC Vendor

Approved With Comment

Reviewed Resubmit

This approval or review does not relieve the vendor / subcontractor of his responsibilities to meet all requirements of the purchase order

CODE 1 – Reviewed with No Comments CODE 2 – Reviewed with Minor Comments CODE 3 – Reviewed with Major Comments CODE 4 – Not Accepted CODE 5 – Information Only

Originator Checked Appd (PRJ) Checked Approved

Sign

Date

B 14-02-2014 Issued for Review WLN RK ANG Rev Rev Date Description Prepared By Reviewed By Approved By

BANYU URIP PROJECT

WEIGHT & CENTER OF GRAVITY (COG) REPORT

Doc. No. IDBC-TS-VCSTR-T100639-NG0028 14-Feb-2014

Rev. B

MPI: Not Classified of 9

IDBC-TS-VCSTR-T100639-NG0028 -LIR-12 – WEIGHT & CENTER OF GRAVITY REPORT

REVISION HISTORY

Rev Description of Change Number of Pages Date

B Issued for Review 9 14 Feb 2014

BANYU URIP PROJECT



Rev. B



TABLE OF CONTENTS

1.0 INTRODUCTION ............................................................................................................................. 4

1.1 SUMMARY ............................................................................................................................. 4 1.2 OBJECTIVES ......................................................................................................................... 5

2.0 SCOPE OF REPORT ....................................................................................................................... 6

2.1 ANALYSIS ............................................................................................................................. 6 2.2 CONCLUSIONS ..................................................................................................................... 6

3.0 WEIGHT CONTROL PROCEDURE / METHODOLOGY .................................................................. 6

3.1 DEFINITIONS ......................................................................................................................... 6 3.1.1 BASE WEIGHT ...................................................................................................................... 6 3.1.2 CONTROL WEIGHT ............................................................................................................... 6 3.1.3 LIFT WEIGHT ........................................................................................................................ 7 3.1.4 DISCIPLINE CODES .............................................................................................................. 7 3.2 METHOD................................................................................................................................ 7 3.2.1 DATA REQUIREMENT FROM DISCIPLINES ........................................................................ 7 3.2.2 WEIGHT AND CENTRE OF GRAVITY CONTROL ................................................................. 7

4.0 COORDINATE SYSTEMS ............................................................................................................... 8

5.0 OVERALL SUMMARY REPORT ..................................................................................................... 9

5.1 WEIGHT CONTROL SUMMARY ............................................................................................ 9 5.2 COG ENVELOPE ................................................................................................................... 9

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Rev. B



1.0 INTRODUCTION Power Generation (LIR-12) is to be instaled on the concrete Pedestals in Banyu Urip Site at Cepu, Indonesia. LIR-12 is building without split. Size of LIR-12 is 17.4 m x 4.4 m x 4.1 m.

1.1 SUMMARY

This report contains the weight and Centre of Gravity (COG) estimates for the substation Modules. The overall module weight contains primary and secondary structural steel, architectural, electrical & Instrument bulk weight, and equipment weights. Primary structural steel shall include the following:

• Primary Floor Framing • Primary Roof Framing • Column • Interconnection Column • Floor Deck Plate • Lifting pad eye

Architectural weight shall include the following:

• Equipment Support Beams • Wall Plate and supports • Roof Deck Plate • Roof Insulation • Secondary Floor Framing • Secondary Roof Framing • Secondary Wall Framing • Roof Insulation • Wall Insulation • Underfloor Insulation • Internal Wall Panel • Ceiling • Doors • Belly Pan & support • Inside Cable Trays • HVAC & Ducting • Gland box

Equipment weight shall include the following: • Equipment mounting on the floor • Equipment mounting on the wall

Lifting aids and slings weights are tagged as installation aids. Some disciplines are computed from drawings that give preliminary process information.

To provide a consistent gauge for the contingency calculation adjustments, the ‘Weight Growth Contingency Matrix’ is used. The Matrix distinguishes between bulk materials and the tagged equipment items and is based on industry-accepted practice. A contingency code is assigned and continually revised based on the completion status of each item in the estimate. Refer to section 3.3 for the contingency codes and descriptions.

BANYU URIP PROJECT



Rev. B



The base weights current weights and centre of gravity for lifting/loadout are summarized in their respective tables, which are found in section 5.

1.2 OBJECTIVES The objective of weight control report is to provide an approximate estimation of Substation Module weight & COG. It is also important to continously monitor the generated weight components of various items to be constructed / installed into the substation module. The structural steel weights and COG will be combined with various engineering weight data in order to obtain the combined module weight and COG. During the preparation of this report, the supply of all weight for all main items are provided by the various engineering disciplines. If the weight is not available, the estimated weight based on a project with the same nature is assumed by each disciplne.

BANYU URIP PROJECT



Rev. B



2.0 SCOPE OF REPORT 2.1 ANALYSIS

In Preparing the weight control report, sum of the items have not been fabricated and installed. Hence, the weight estimated only assumed by each dicipline based on preliminary or approved structural and electrical equipment layout drawing. The above figure shows the reference datum used for COG definition. In the vertical direction, the origin is to be the Module floor level (T.O S Floor), positive going up. The weight and COG of the structural members are compiled in a Microsoft Excell Spreadsheet, which is programmed to compute the overall weight and COG of the Substation Building as a whole.

2.2 CONCLUSIONS The weight control engineering has been compiled based on preliminary drawings. The Structural weight has been taken from “IDBC-TS-VDSTR-T100639-NG0001_Rev 3,” LIR 12- Structural Support, Framing Plan & Elevations Views”. The Architectural weight has been taken from “IDBC-TS-VDSTR-T100639-C00010_Rev 1 ,” LIR 12- General Arrangements & Architectural” and from “IDBC-TS-VDELE-T100639-NG0101_Rev 1 ,” LIR 12- Bottom Opening & Gland Boxes Detail” .The electrical equipment weight has been taken from “IDBC-TS-VDLAY-T100639-NG0001_Rev 2,” LIR 12- Architectural Plan Layout / El. Equip. Layout”.

3.0 WEIGHT CONTROL PROCEDURE / METHODOLOGY

3.1 DEFINITIONS

The following abbreviations are used in the document, and are defined in the following sub-sections:

COG : Centre of Gravity

T.O S : Top of Steel

3.1.1 Base Weight

This is the theoretical weight, which is obtained from:

• calculation using latest available design drawings/sketches;

• best estimates

• vendor data

• weighing

The base weight includes no allowances or contingencies.

3.1.2 Control Weight

The Control Weight is the weight assigned by the Weight Control Engineer to each discipline, which their Factored Weight should not exceed.

BANYU URIP PROJECT



Rev. B



3.1.3 Lift Weight Lift Weight is the Gross Weight of an item or the total Gross Weight of items in a fabricated unit or module that is to be lifted. The Lift Weight does not include an allowance for impact the weight of rigging is not included, while items removed prior to lift, e.g. access ladders/platforms, are excluded

3.1.4 Discipline Codes The following discipline codes are used for reporting purposes :

Table 3.1.8. Discipline Code

DISCIPLINE DISCIPLINE CODESTRUCTURAL STRU ARCHITECTURAL ARCH EQUIPMENT EQUIP

3.2 METHOD 3.2.1 Data Requirement from Disciplines

In general, the weight and COG of all items with a weight equal to or greater than one tones weight shall be specifically and individually reported. All other items will be included in the weight of the appropriate category of bulks.

Structural The dry weight and centre of gravity for all items and materials are based on preliminary information.

Architectural All items are based on preliminary information

Equipment The weight and centre of gravity for all items and materials are based on preliminary information.

3.2.2 Weight and Centre of Gravity Control

Weight and centre of gravity control is to estimate the whole weight of each substation for the later designs.

BANYU URIP PROJECT



Rev. B



4.0 COORDINATE SYSTEMS

The following figure denote the reference coordinate system used in the derivation of the COG of the lift weight. Coordinate system to specify the COG shall be follow below figures:

Figure 4.1. Module LIR 12 - COG Coordinate System

CoG X

CoG

Y

CoG

Origin taken from centre of building

CoG

Z

CoG

BANYU URIP PROJECT



Rev. B



5.0 OVERALL SUMMARY REPORT

The weight summary for the Substation building is tabulated in the table detailed in section 5.1.

5.1 WEIGHT CONTROL SUMMARY

Table 5.1. Weight Control Summary

For LIR-12 Module

ID Description Unfactored weight (w) Factor Factored weight

(w) kg kg

1 STRUCTURAL 13822 1.1 15204 2 ARCHITECTURAL 18773 1.1 20650 3 EQUIPMENT 6567 1.1 7224

Total 39161 43078

5.2 COG ENVELOPE

COG of the Substation buildings shall be consistently monitored such that the shift will not cause the lifting analysis design and its lifting pad eyes to be in-validated. A final lift analysis check will be carried upon final weighting and to ensure the structural adequacy of the module is not impaired. The COG of the Substation buildings for Lifting/Loadout condition is tabulated in the Table below. The COG of the Substation buildings is measured based on the Coordinate Systems stated in section 4.0.

Table 5.2.1. COG for Lifting/Loadout Condition

ID Description weight ( w ) coordinate to center of building

(mm) w . x w . y w . z

kg x y z

1 STRUCTURAL 13822 -22 6 1512 -308597 85446 20895473

2 ARCHITECTURAL 18773 -7 -15 1650 -131537 -280662 30971201

3 EQUIPMENT 6567 -249 -41 1082 -1635622 -266700 7106700

Total 39161 -2075755 -461916 58973374

centre gravity of building -53 -12 1506

idbc-ts-vcstr-t100639-ng0028 - lir-12– weight control report

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