AB U DHAB I OIL REFINING COMPANY
EPC WORKS FOR CONSTRUCTION OF OIL TERMINAL AT HFZ AGREEMENT NO. 10-5638-E-1
METHO ETHOD D STATE STATEME MENT NT METHOD STATEMENT FOR TANK INTERNAL SCAFFOLDING ON FLOATING ROOF DOC. NO.: 5638-E1-1500-CA-MS-814
METHOD STATEMENT FOR TANK INTERNAL SCAFFOLDING ON FLOATING ROOF (BY VENDOR) VENDOR)
Sinopec International Petroleum Service Corporation – 8 Beichen West Road, Chaoyang District, Beijing China
WorkingPlatform Load rating
Maximum Number of Max. TotalNumber of WorkingLevels Planked/PlatformedLevels
2
BIRDCAGE SCAFFOLD - 1st PHASE
1
1.50kN/m
1
Total Scaffold Height
Drawing Notes 1.
Harsco Infrastructure Copyright This drawing is the copyright of Harsco Infrastructure. No unauthorised use, copy or disclosure is to be made and it is to be returned upon request.The drawing issupplied subject to the company's standard conditionsas applicable.HarscoInfrastructurereservestherightto amenddrawingdetailsandmaterialcomponentssubject to stock availability.
2.
B a sis o f D es i gn This drawing hasbeen prepared from information supplied to us by, or on behalf of the Customer, who should checkthatwehave correctlyinterpretedhisrequirementsandthat allloadings,dimensions,details,erection, pouringandstrikingsequencesetc.areas requiredandpracticable.
4.8m
The following documents have been used to prepare this scheme: 1 2 3 5
m 8 . 4 = T H G I E H D L O F F A C S
g i n d w e a r r i D q u y e r a R n i a l m v i l o r e r p P A p 2 8 1 4
0 0 6 1
5638-E1-1500-MEQ-DWG-501Rev 0 CustomerDrawings: .................. ..................................................... ............. . CustomerDrawings: .................. .................................................................. . . .............................................................................. Design Brief: ..... . CustomerMethodStatement: .................. .................................................................. . OtherInformation: .................. ..................................................................
0 0 6
1700
2500
6.1kN
2500
12.2kN
2500
12.4kN
2500
12.5kN
2500
12.6kN
2500
12.8kN
2500
12.8kN
1600
10.9kN
2500
10.9kN
2500
12.8kN
2500
12.8kN
2500
12.6kN
2500
12.5kN
2500
12.4kN
12.2kN
Thisdrawinghas beenpreparedin accordancewithHarscoInfrastructureEquipmentDatasheets,Formwork, AGuide to Good Practice (Concrete Society) 2nd Edition, CIRIAReport 108 Concrete Pressure on Formwork, as wellas the relevant statutory provisions and Codesof Practice. To enable usto complete thisdrawing, we have allowed for the following:.Information asperAction request sheet .................. .................. ................. .................. ................................................................ No Sheeting .................. ..................................................................................................................... . .................. ..................................................................................................................... . .................. ..................................................................................................................... TheCustomeris tocheckandconfirm thatwehavecorrectlyinterpretedhisrequirements. The Customer isdirected to the Members Area of our website where allthe latest Product Datasheets, CAD blocks,Animations,andotherusefultechnicalinformationisavailableto download.Pleasevisit www.harsco-i.comandfollowthe linksfordetails.
0 0 6
2500
1700
3.
FalseworkSelfWeightof Concrete SelfWeightofFormwork Live Load varies
6.1kN
DENOTESFLOATING ROOF @ LEVEL +21.400
DENOTESLEG LOADONFLOATING ROOF
0 0 4 0 2
Access
Working Lifts AdditionalLifts Hop-UpBrackets
Wind
Wind loads where applicable, have been calculated in accordance with BS6399. Max.Design . Wind
1 1.5 . . .
Tm i be r Notimberis suppliedbyHarscoInfrastructureunlessspecificallystated.WhereHarscoInfrastructuredoesnot supply, the design &supplyof timber is the responsibilityof the Customer. To enable us to complete this drawing the following properties(based on Formwork, AGuide to Good Practice), have been allowed for as the Customers Timber(s):
5.
Fom r w or k THECUSTOMERIS RESPONSIBLEFORENSURING THAT ALL HARSCO INFRASTRUCTURE COMPONENTSTHAT COMEINTO CONTACT WITHCONCRETEARE TREATEDWITHCHEMICAL RELEASEAGENT PRIORTO EACHUSE.
6.
Foundations/Support Unlessotherwisenoted,nosoleplatesorothermeans ofspreadingtheimposedloadsare suppliedbyHarsco Infrastructure. Where Harsco Infrastructure equipment is supported, suspended, anchored or tied to an existing structure or the ground, the Customer must ensurethat the structure or groundis adequate to safely supportthe additionalimposedloads.
7.
M o dif ci aito n This drawing has been prepared using the Safe Working Loads of the Harsco Infrastructure component s specified. No alteration to components, assembly, loading or any other aspect must be made without the expressedwrittenauthorityfrom HarscoInfrastructure.
8.
T yn i g & B ra cni g TheCustomeris responsibleforensuringallstructuresremainadequatelytiedand/orbracedtocarrythe load and ensure stability. No ties or braces are to be removed or altered in anywayw ithout the expressed written authorityfromHarscoInfrastructure.WhereHarscoInfrastructureissupplyingequipmentonly,the supply& fixing of allnecessary ties is the responsibility of the Customer.
. . ................................ . . ................................. .... Secondary beare rs ..... ... . . . . . . . . . . . . . . . . . . . .... . . Oh t e (r s) . ... . . . . . . . . . . . . . . . . . . . . . . . . ................ ...................... . . .................................with face gra in orientated parallelto span. ....
Mainbearers W ailn gs Timber Grade allowed Plywood
9.
TemporaryWorkingPlatforms Unless specificallystated it is considered that any other working platforms (for erection or dismantling purposes),will bedesigned,suppliedandfittedby theCustomer.
10.
Design Output This drawing should be read in conjunction with :. .................. .............................................................................................................................................................. . .................. .............................................................................................................................................................. Unlessindicatedotherwise,allloadsshownare notfactored. 13.5 N MaximumcalculatedLegLoad =...............k Lift positions and bracing frequency to be as shown. . MaximumcalculatedTie Load=...............kN . Tie Type:-............................. ... Tie spacing to be as shown on drawing. Note, method of assessment of loadsin tie rods allows for elongation of ties and not continuity. Ref. Formwork, Guide to Good Practice2nd Edition 3.8.2.
A
Unlessaspecificationfortolerancehasbeen provided,deflectionhasbeenlimitedto1/270thof themaximum span of each member. Maximum weightof formwork unit = Maximum weight of table unit = 12.
. ................kg .. .kg ..............
Eccentricity Alllegsare to be erected plumb and loaded concentrically to the generaltolerances given in BS5975:2008 section 20 "Work on Site" unless ( noted otherwise).
13.
Obligation,Responsibilities &CDM ThisdrawingconstitutesHarscoInfrastructuresRisk AssessmentinaccordancewithRegulation11of the current CDMRegulations 2007. The elimination of generalriskin the use of temporaryworks isbyuse of good practice. Guidance can be foundwithin relevant Codes, HSEpublications and Guides. Wherever possible, risk is designedout of this proposalduring the design process. ************DO NOT TAKERISK! - IF INDOUBT, ASK************
LEDLOAD= 6.1kN
LEDLOAD= 12.2kN
SECTION A-A - Jet A-1 Tank
LEDLOAD= 12.4kN This drawing is for discussion, pricing, and approvalby the customer. It forms no part of any agreement untilissued and signed in its construction status.
LEDLOAD= 12.5kN
1:75
CuplokStd.
Maximum ConcretePressureallowed ConcreteType(CIRIA108) Concrete Temperature R at eof R se i
4.
40000
SCALE
. . .......... ..... . .... .. .. .. .. m/ hr
Formwork
CLIENT TO ENSURE FLOATING ROOF (ON WHICH THE SCAFFOLD IS FOUNDED) IS ABLE TO WITHSTAND THE ABOVE EXTRA IMPOSED LOADS
0 0 0 2 2
A p pli ed L o ad s Applied loads (unless otherwise indicated) whereapplicable:-
LEDLOAD= 12.6kN
This design has been checked for loadings, local and overallstability in accordance with our interpretation of the customers requirements.
By :
By :
Date : 09/11/2014
Date :
RESIDUAL RISKASSESSMENT
Wherever possible,risk is designed-out of this proposalduring the design process. Where this isnot possible, the risk willbe minimised and any residualrisk willbe noted and indicated by the symbol.
LEDLOAD= 12.8kN
TABLE SHOWING LENGTH OF BRACING TUBES (mm)
DRAWING STATUS Construction Status fully valid when checked and dated ! DRAWING STATUS
Bay Length (mm) Lift Height 2000 Cuplok Std. Cuplok Ledger
Cuplok Ledger
**NOTE:- AllScaffold Couplers must be tightened up to a torque of 7 kg.m (50ft.lbs)
Cuplok Node Point Ledger Connection
Base & Head Plate with Jack
Used to Connect Angular Tubes
Tube Fittings SwivelCoupler
Can onlybe used to Connect PerpendicularTubes
Tube Fittings Double Coupler
Preliminary drawing
2500
1800
1600
1 30 0
1 20 0
1000
900
3500
3000
3000
2500
2 50 0
2 500
2500
1500
3500
2 50 0
2 50 0 2500
2500
2000
2000
1000
3000
2500
2000
2000
2000
1500
Jack Bracing (Full extension) 3000
2000
FORDISCUSSIONANDPRICING PURPOSESONLY- SUBJECT TO CUSTOMERSAPPROVAL Scale:
Client:
As shown Date
Name
Drawn:
09/11/2014
EMK
Checked:
09/11/2014
MWR
SINOPEC Project:
Birdcage Scaffold Jet A-1 Tank - 1st Phase
Remark:
PLANLAYOUT at OilTerminalat Hamriyah
2 50 0
2 00 0 2000
Lacing to Internal Beam Brackets
2000
1500
1500
1500
1500
1500
Cuplok and Tube &fittings Abu DhabiDesign Office
LEG LOAD KEY PLAN
Bay Length
SCALE
A Index
P.O. Box7574 Abu Dhabi, United Arab Emirates Tel: +9 71 (0) 2 5824835 Fax: +971 (0) 2 5827974
N.T.S
Revised as per clients comments - For Approval
12/ 11 2/ 014
E MK
M WR
Revision
Date
Da r wn :
C he ck ed :
CAD-File:
Apart of Harsco Infrastructure Harsco House, Regent Park Leatherhead, Surrey KT22 7SG Tel: +44 (0) 844 3358860 Fax: +44 (0) 1372 381399 E-Mail:
[email protected] www.harsco-i.com Drawing-No.:
6060-24&25
A-UAE-6060-25
QuebeisiSGBLLC
OIL TERMINAL CONSTRUCTION PROJECT (EPC-1), HFZ, SHARJAH RISK ASSESSMENT Task Description Scaffolding Erection, Dismantle and Modification Inside Tank no.504 Prepared by (Name and signature) Suresh Kumar
Ste p No
Description of Task Step
Hazard
1
Delivery of materials
Being struck by vehicle or passing vehicle. Striking the public with materials or vehicle
Mechanical handling of materials. Lorry mounted Loader/cranes etc.
Consequences (People, Environment, Assets, Reputation)
Controls (Prevent, Detect, Control, Mitigate)
Operators must be Public/contractors trained,authorised and certificated. / scaffold team Outriggers must be fully extended. Any slinging of materialsmust be carried out by persons trained to do so or under the supervision of a trained person. Avoid vehicle reversing where possible. Inspect equipment before use. Keep work area tidy and maintain access
Work order No Date
16-11-2014
Baseline Additional Control Risk Measures/ Actions S P R
4
B M Vehicle moving as per the site traffic rule with trained banksman. Erect barriers and signs to protect others. Scaffold team to wear HiViz vests. Always stand clear of bundles in a safe distance. All equipments to beregularly maintained tested and examined as per statutoryrequirement i.e.crane , slings and chains
Resp Party
Residual Risk S P R
Performer
2
B M
OIL TERMINAL CONSTRUCTION PROJECT (EPC-1), HFZ, SHARJAH RISK ASSESSMENT 2 Back injury Manual handling of materials
scaffold team
Muscular strains and sprains
2
Cuts/bruising Crushing
Performer
1
C L
Performer
1
C L
Team to be shown company manual handling video Making LITE of loads.
Gloves,safety boots and helmet to be worn. Do not carry materials up or down ladders.
Hernia
C M
When handling materials by hand or rope, concentrate on the task you are doing.
Make sure your gloves are well fitting and free from grease,mud, oil etc which can lead to poor grip and handling.
Do not attempt to lift or pass a weight that you feel is too heavy or that you are not comfortable with.
Ensure team shall be aware about manual handling techniques. Ensure good communication when passing materials hand to hand.
Where possible , all short materials(Under 3M) should be passed up through the scaffold lift and not up the out side.
Area must be barricaded with propper sign. 3 Scaffolding materials
Possible scaffold failure. Fall of men and materials.
Scaffold team/User
2
Check materials fit for use,particularly boards/ladders. Sub-standard materials to be isolated and returned to depot.
C M All components should be inspected before use
OIL TERMINAL CONSTRUCTION PROJECT (EPC-1), HFZ, SHARJAH RISK ASSESSMENT 4
Site Hazard Recognition.
Unforeseen or unknown hazards.
Scaffold team
Super visor/Manager to carry out prestart site survey safety checklist prior to starting work on the project for the first time. Site safety plan comprising Method Statement and Risk Assessmentbased on findings to be produced,sent to site,disseminated to the workforce and recorded as received and understood by the workforce on a Tool box talk record. Job health and safety checklist to be copleted by foreman prior to work commecing for first time at site and at the start of each shift. Site Task Observation Reports are completed one per month per site by contracts supervisors. Scaffold team are encouraged to submit site hazard observations from all sites via near missing cards,increasing general and specific hazard awareness through the workforce. All persons are required to attend site induction training prior to entering site for the first time.
3
C M Supervisor to regularly visit site. Non scaffolding related HSE topics from main contractor are circulated to workforce via Tool Box Talk sessins to increase general awarness of site hazards.
Performer
1
C M
OIL TERMINAL CONSTRUCTION PROJECT (EPC-1), HFZ, SHARJAH RISK ASSESSMENT 5
Working at height. Erecting dismantling either tube and fittings or Cuplok scaffolding.
Falls of men and materials.
Scaffold team Others working below who may be struck by falling materials
All work at height must be planned , organised and supervised by competent persons. Safe systems of work, to include working off a minimum of 4 properly supported boards, and minimum of single guardrail on non-working lifts, as per N.A.S.C guidance SG4:05 Follow Company procedure for use of safety harnesses, as per N.A.S.C guidance SG4:05. Do not work on exposed edges or on incomplete platforms unless using safety harness tied off to a suitable anchor point. Suitable and sufficient means of access and egress must be maintained at all times. Install and remove ladders progressively as work continues Pre-dismantle checks of scaffold to ensure that it has not been tampered with. Supervisor to regularly visit site Train scaffolders what to do in the event of a fall or when have fallen and suspended in harness, to prevent or minimise damage caused by suspension trauma All employees will be trained on the use, care and wearing of fall protection before working at height. Trainee’s shall be limited to working on scaffolds that are fully boarded and double guardrailed.
4
B M Use of safety harness
should be mandatory & 100% tie off. Inspection and approval of scaffold and use scaff tag system and inspection record. Ensure all personals are trained and phisically fit for the task. Ensure all tools are secured propperly. Barrier off below to restrict access to work area, creating a general exclusion zone. Always ensure that work areas are barricaded off using physical barriers/warning tape and clearly displayed signage
Performer
2
B M
OIL TERMINAL CONSTRUCTION PROJECT (EPC-1), HFZ, SHARJAH RISK ASSESSMENT 6
Working at Falls of material from height Height, erecting, altering or dismantling scaffolds. Passing/liftin g materials up the outside of the scaffold.
Scaffold Team Other workers Public
Barrier off below to restrict access to work area, creating a general exclusion zone. Always ensure that work areas are barricaded off using physical barriers/warning tape and clearly displayed signage. Set up additional exclusion zone within general exclusion zone to keep Harsco employees out of direct line of materials which may be being passed or lifted up the outside of the scaffold. Leave yourself enough room within area to carry out your task safely and easily. Ensure Gin wheels/ropes/lifting bags are fit for use Do not attempt to lift a weight that you or your colleages are not comfortable with. Where possible, all materials under 3m in length should be passed up internally through the scaffold, not externally Ensure good communication (verbal and action) and stay alert when passing materials hand to hand Keep stacked material on scaffold to a minimum. Ensure there are no gaps in the platform that material can fall through. Do not stack material higher than the toeboards. Stack short tubes at right angles to the boards. In the event of high winds, ensure
4
B M Only certified/authorised Performer personnel shall be allowed for modifying the scaffold. Only certified scaffolding inspector shall be inspect periodically. Supervisor/Foreman shall be present while work is going on. Ensure the personnel do not work outside the platform unless properly tied.
2
B M
OIL TERMINAL CONSTRUCTION PROJECT (EPC-1), HFZ, SHARJAH RISK ASSESSMENT
Working at Falls of material from height Height, erecting, altering or dismantling scaffolds. Passing/liftin g materials up the outside of the scaffold.
Scaffold Team Other workers Public
Do not leave materials leant against 4 structures or scaffolds unnattended
B M
Performer
2
B M
D M Heat Stress training to be provided to all employees. Flag system to be followed Strict supervision Alone worker prohibited Buddy system of work. Provision of First aid Centre – always Display of anti-heat posters to educate employees
Performer
2
A L
Ensure main contractor removes all debris from boarded lifts prior to dismantling. Pre-dismantle checks of scaffold to ensure all loose materials are removed All materials should be passed down by hand or by crane/forklift. Do not bomb/drop materials Ensure gloves are well fitting and free from mud/grease Adopt good stacking procedures
7
Heat stress management
Extreme Temperature High humidity
Heat related illness
Do not overload scaffold with stored equipment Provision of water points at frequent intervals. Job Rotation Provision of shelters Acclimatisation Provision of ORS Provision of rest at regular intervals Changing of shift timings Special considerations to Ramdan fasting workers Water can is a mandatory PPE.
3
