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•IACS latest developments
•URS 31 Side frames verification
•PMA Permanent Means of Access
For the benefit of business and people
Dubai, March 26th.2004
Andrea Zamburlini - Paris
2
Part 1 Latest IACS Rule
developmentPart 2 Situation on Permanent
Means of AccessPart 3 URS31 and software
« BULK »
3
Part 1
Latest IACS Rules
developments
4
IACS REQUIREMENTSIACS REQUIREMENTSIACS REQUIREMENTS
1
IACS IS INVOLVED IN THE DEFINITION OF THE FUTURE NEW RULES TO
INCREASE SHIP’S STRENGTH
HURRICANE CLAUDET – PACIFIC OCEAN
5
IACS REQUIREMENTSIACS REQUIREMENTSIACS REQUIREMENTS
1
6
IACS REQUIREMENTS
1RULES ENTERED INTO FORCE
AFTER JULY 1ST. 1998:EXISTING SHIPS
RULES ENTERED INTO FORCE AFTER JULY 1ST. 1998:
EXISTING SHIPSURS 23: IMPLEMENTATION OF
REQUIREMENTS IN TERM OF:
• STRENGTH OF TRANSVERSE CORRUGATED BULKHEAD BETWEEN HOLD 1 & 2 (URS 19)
• STRENGTH OF DOUBLE BOTTOM STRUCTURE WITH HOLD N.1 FLOODED (ALLOWABLE HOLD LOADING, URS 22)
BEFORE 1st.July 1998
(built) 1st.July 1998 (built)
1st.July 2003 (contract):
NEW RULES
URS 12: DESIGN OF SIDE WEBS
URS 18: DESIGN OF TRANSVERSE
CORRUGATED BULKHEAD BETWEEN HOLD 1 & 2
URS 20: DESIGN OF DOUBLE BOTTOM
STRUCTURE
URS 17: GLOBAL STRENGTH CHECKED AGAINST EACH HOLD
FLOODED
AFTER 1st.July 1998 (built):
7
UISC 179-180 (EX URS 24): WATER
INGRESS ALARMS
1st.July 2004 (built)
URS 25: NEW LOADING
CONDITIONS
1st.July 2003 (contract)
IACS REQUIREMENTS
1RULES ENTERED INTO FORCE
AFTER JULY 1ST. 2003:EXISTING AND NEW SHIPS
RULES ENTERED INTO FORCE AFTER JULY 1ST. 2003:
EXISTING AND NEW SHIPSURS 26: STRENGTH OF SMALL HATCHES ON
EXPOSED FORE DECK
URS 27: FORE DECK EQUIPMENTS AND
OUTFITTINGS
1st.Jan 2004 (contract)
URS 30: CLOSING DEVICES OF
HATCHCOVERS N.1 & 2
URS 31: RENEWAL OF SIDE WEBS OF BULK BUILT BEFORE JULY 1ST. 1998
URS 21: NEW SHIPS SCANTLING OF HATCH COAMINGS AND
HATCHCOVERS
URS 28: NEW SHIPS FITTING OF A
FORECASTLE
8
ILLC: ADD VOLUME
FORWARD
SOLAS II-1/3.6: PERMANENT MEANS OF ACCESS
URS 32-33: INCREASED SCANTLING OF DOUBLE SIDE
STRUCTURES ?
1st.Jan 2005 (built)
IMO:
DOUBLE SIDE SKIN REQUEST
?
1st.Jan 2007 (built)
IACS REQUIREMENTS
1 RULES TO COME: FUTURE NEW SHIPS
RULES TO COME: FUTURE NEW SHIPS
1st.July 2004 (built)
1st.July 2003 (contract)
1st.Jan 2004 (contract)
1st.July 1998 (built)
9
IACS work1 IACS future work programmeIACS future work programme
10
IACS work1 IACS future work programmeIACS future work programme
LRS, ABS and DNV
11
IACS work1 IACS future work programmeIACS future work programme
12
IACS work1 IACS future work programmeIACS future work programme
13
IACS work1 IACS future work programmeIACS future work programme
14
JTP & JBP SCHEDULEJTP & JBP SCHEDULEIACS work1
15
Part 2
Permanent Means of Access
16
BackgroundBackground
SOLAS New Regulation II-1 / 3.6
• Original text adopted by MSC 134(76) on Dec 2002
• Refer to Technical Provisions MSC133(76)for detailed structural arrangement
Purpose : PMA shall be provided to enable
» Overall inspections, Close-up inspections & Thickness measurements
Concerned Ships :
• Oil tankers
• Bulk carriers
SOLAS Background2
Application date of Reg 3.6 & TP:
• Oil tankers & Bulk carriers constructed on or after 1st January 2005
500 gross tonnage 20,000 gross tonnage
17
Background DE-47Background DE-47
Industry reacted against the existing text in 2003
IMO Assembly (Dec 2003) agreed to update the texts of Reg 3.6 & TP
Proposals from :
• Greece
• Industry : BIMCO, IGS, INTERCARGO, INTERTANKO & OCIMF
• IACS
• Korea
DE 47 (25th Feb to 5th March 2004) started to work
SOLAS Background2
18
SOLAS Amended
Regulation II-1 / 3.6
19
Amended Solas II-1 / Reg 3.6Amended Solas II-1 / Reg 3.6
Means of access
• Each space shall be provided with a permanent means of access ...
No modification for :
• Safe access to cargo holds, ballast and other spaces : direct from deck
• Number and Arrangement of access
• Ship structure access manual
Access through openings
• Proposal to move the requirements into the Technical Provisions
• Kept in the Reg 3.6 - General Technical Specifications
SOLAS Amended Reg II-1/3.6
2
20
General Technical SpecificationsGeneral Technical Specifications
Access through Horizontal openingsHorizontal openings, hatches or manholes :
• Minimum clear opening 600 x 600 mm & Corner radii up to 100 mm Max (IACS Interp.)
Access through Vertical openingsVertical openings or manholes :
• Minimum clear opening 600 x 800 mm
• May include corner radii up of 300 mm (IACS Interp.)
• Alternative to traditional opening (850x620) (IACS Interp.)
» Subject to verification of easy evacuation of injured person on a stretcher
SOLAS Amended Reg II-1/3.6
Document WordPad
Document WordPad
Oil tankers DWT < 5000 t
• Adm may approve smaller dimensions
• Height > 600 mm
» Steps & handgrips
» It should be demonstrated that an injured person can be easily evacuated
Document WordPad
2
21
SOLAS
Amended Technical Provisions
MSC 133(76)
22
Means of Access to cargo and other spaces
Means of Access to cargo and other spacesSOLAS Amended TP
MSC 133(76)2
Forward Ballast tanks: Included
Each space within the cargo areaShall be provided with a Means of Access
(Except Double bottom spaces)
Each space within the cargo areaShall be provided with a Means of Access
(Except Double bottom spaces)
Regulation not applied to Chemical Carriers engaged in intermittent carriage of oil cargoes
Regulation not applied to Chemical Carriers engaged in intermittent carriage of oil cargoes
23
PreamblePreamble
PMA : Designed to be integral parts of structure
600
Gu
ard
Ra
il
Safe guards
Or
Grid cover
Opening in stringer plating utilized as PMA:
SOLAS Amended TP MSC 133(76)
2
Stringer definition :
• Stiffened horizontal plating structure
• In Double Side ballast tanks : If
» Continuous passage > 600 mm width past frames
» on Side shell or Long Bhd
then considered as stringer and longitudinal PMA
24
Technical ProvisionsWhat changed ?
Technical ProvisionsWhat changed ?
Technical provisions
• Structural members subject to Close-up Insp. & Thick. measurements : Permanent Means of Access 2 tables (Except Double bottom)
SOLAS Amended TP MSC 133(76)
2
Oil TankerWing ballast of Ore carriers
Approved Alternative method in combination with
fitted PMA
Elevated passageways
• Clear width > 600 mm
• Except going around vertical webs Clear width > 450 mm
• Guard Rails
Tunnels Requirement Deleted
25
Technical ProvisionsWhat changed ? ..2..
Technical ProvisionsWhat changed ? ..2..
Permanent Inclined Ladders
• Flight : Vert Height 6 m
• Resting platform : Vert Height 6 m
• Width : 400 mm
• Treads : Equally spaced200 Vert distance 300
Ve
rtic
al H
eig
ht
Vertical & Spiral Ladders
• Width & Construction International or National Standards accepted by the Administration
Alternative means of access (not exhaustive list)• Hydraulic arm fitted with stable
base (local control deleted)
• Wire lift platform
• Staging
• Rafting
• Robot arm or Remotely Operated Vehicles
• Portable ladders > 5m long (if mechanical securing device)
• Other means of access approved by & accepted to Administration
SOLAS Amended TP MSC 133(76)
2
26
Bulk Carriers :Access ladders to cargo hold
Bulk Carriers :Access ladders to cargo hold
Access ladders to cargo spaces
• Vertical distance 6 m Vertical or series of inclined ladders
• Vertical distance > 6 m :
Inclined ladders atat one endone end of cargo hold
Inclined ladders atat one endone end of cargo hold
Vertical ladder at the other endat the other end of cargo hold
Vertical ladder at the other endat the other end of cargo hold
SOLAS Amended TP MSC 133(76)
2
Uppermost 2.5m :Vertical ladder
Flight : vertical Height 6 mLinking platforms
Lowest 6m : Vertical ladder
27
Bulk Carriers :Access ladders to other spaces
Bulk Carriers :Access ladders to other spaces
Access ladders to Top Side Tank
• Vertical distance 6 m Vertical ladders
Distance : Deck to Long Means of Access / Stringer / Bottom of space
» Uppermost 2.5m : Vertical
» Linking platform except if Landing on Long. M.A. / Stringer / Bottom
• Vertical distance > 6 m Inclined ladders
» Uppermost 2.5m : Vertical & landing platform
» Flight : length 9 m & vertical Height 6 m
» Lowermost 2.5m : Vertical
Access ladders to Double Side Skin with Width < 2.5m
• Vertical ladders & Linking platform with vertical distance < 6m
Spiral ladders Alternative to vertical ladders (for all spaces)
• Uppermost 2.5m : need not to be Vertical
SOLAS Amended TP MSC 133(76)
2
28
Technical Provisions:
Tables for Oil Tankers and Bulk Carriers
29
Table ContentTable Content
Technical provisions : 2 Tables
Table 1 : Oil tankers : Means of access for ballast & cargo tanks
• Combined underdeck and vertical structure access
• Requirements for WB tanks & cargo oil tanks
• Requirements for Wing WB tanks
» Width < 5 m
» Forming double side spaces, including bilge hopper sections
Table 2 : Bulk carriers
• Separation of underdeck and vertical structure
• Requirements for cargo holds
• Requirements for WB tanks
SOLAS Amended TPTables
4
30
Bulk Carriers - Cargo holds1/
Bulk Carriers - Cargo holds1/
Underdeck Structure at Transverse Bhd
• 3 PMA both sides of cross deck & iwo centreline
» 1.6 to 3 m below deck
» Accessible from deck or cargo hold
Equivalent : Athwartship PMA
1.6 to 3 m below deck
Transv Bhd with full upperstool & access from main deck :
• PMA in cross deck not required
Height < 17m Alternative Means
Table 2 Bulk Carriers Amended TP MSC 133(76)
2
31
Bulk Carriers - Cargo holds2/
Bulk Carriers - Cargo holds2/
Vertical Structure
• 25% of all hold frames (P&Sbd)
» Equally distributed (Fwd to Aft)
3 (Fwd, Midspan, Aft)
• Portable or movable means for remaining frames
• Portable or movable means
» Carried on board
» Readily available for use
• Min. width of ladder : 300 mm
• Single vertical ladder over 6 m : acceptable for inspection of SSS
• DSS construction : no vert ladder required(inspection within DSS)
Table 2 Bulk Carriers Amended TP MSC 133(76)
2
32
Bulk Carriers - Ballast TanksBulk Carriers - Ballast Tanks
Top Side Tank
• H 6 m» One Continuous long PMA along side shell
» 1.6 to 3 m from deck
» If no access hole at 600mm/base & web height > 1m : Step rungs / grap rails
» 3 PMA (ends & middle of bay) up to hatch side girderLongit. structure on sloping may be used
• H < 6 m» Alternative means
Bilge Hopper
• H 6 m»One Continuous longitudinal PMA
below top of clear opening at min 1.2m»Vertical access ladder at each end of tank (tank
access)»Access ladder between LPMA & bottom
• H < 6 m : Alternative or portable means
Alternative Solution(Min 1.6 m
below the knuckle)
It should be demonstrated that
means of access may be brought into the bilge tank
Double Hull : Same as for Oil Tankers
Table 2 Bulk Carriers Amended TP MSC 133(76)
2
For DSS, L Cont PMA may be within 6m from knuckle,
IFIF in combination within combination with Alternative means
33
Oil Tankers & Bulk CarriersFore Peak Tank
Oil Tankers & Bulk CarriersFore Peak Tank
Fore Peak Tank depth > 6 m (at CL)
• Suitable Means of Access to :
» Underdeck structure
» Stringers
» Collision Bhd
» Side shell structure
• Stringer vertical distance < 6 m
» Considered as suitable access
» in combination with portable means
• Vertical distance 6m :
» Alternative means to be provided
Table 1 & 2 Amended TP MSC
133(76)
2
34
Future Evolution
35
Next StepsNext Steps
Date of application :
• DE 47 did not decide and report on MSC
• MSC 78 (May 2004) has to decide the application date of amended texts (Solas Reg II-1/3.6 & Technical Provisions)
IACS - Industry : Needs of up-date interpretations ?
1.1.05
SOLAS II-1Reg. 3.6 & TP
2002 Text
New Interpretations ?
DE
M
ar 2
004IMO
Assembly Dec 2003
Request of Revision
MS
C M
ay 2
004
Proposed amendmentsReg II-1/3.6 & TP
MS
C D
ec 2
004
Application date of Amendments ?
Application date of Amendments ?
SOLAS II-1Reg. 3.6 & TP
Amended
Future Evolution2
36
Part 3
URS 31VERIFICATION OF SIDE WEBS
FOR THE EXISTING
BULK CARRIERS
37
BULKBulk Carrier SafetyChecking new IACS structural unified requirements
3 IACS URS 31 IACS UR S31 for existing ships
38
URS 31 – STRENGTH OF SIDE WEBSURS 31 – STRENGTH OF SIDE WEBS3 IACS URS 31
39
WHAT IS “BULK” SOFTWAREWHAT IS “BULK” SOFTWARE
BULK has been conceived to help owners and designers to assess the compliance of their single side skin bulk carriers of 150 m in length or above, with the IACS ship’s structural requirements.
Based on a very user-friendly platform under Windows environment, BULK will provide the User with a comprehensive view of compliance with the new strength criteria.
The Unified Requirements have already been included in BV Rules.
3 IACS URS 31
40
A Pre-calculation is carried out by BV Technical Dept. or by the Local Plan Approval Office
Local Plan Approval Offices are located in:
CENTRAL PLAN OFFICE PARIS
CHINESE PLAN OFFICE SHANGHAI
DUTCH PLAN OFFICE ROTTERDAM
FRENCH PLAN OFFICE NANTES
GERMAN PLAN OFFICE HAMBURG
HELLENIC PLAN OFFICE PIRAEUS
JAPANESE PLAN OFFICE KOBE
KOREAN PLAN OFFICE PUSAN
MADRID PLAN OFFICE MADRID
NORDIC PLAN OFFICE COPENHAGEN
RIO PLAN OFFICE RIO DE JANEIRO
SINGAPORE PLAN OFFICE SINGAPORE
TURKISH PLAN OFFICE ISTANBUL
3 IACS URS 31 HOW THE “BULK” SYSTEM WORKSHOW THE “BULK” SYSTEM WORKS
41
This pre-calculation is carried out with the software “Bulk” which has been specifically designed for the purpose of:
• calculating the minimum required thicknesses before the survey is started
• allowing the Surveyor to take appropriate actions during the survey, with respect to steel renewal or repairs or reinforcements of the frames and brackets, by comparing the measured thicknesses on-board to the pre-calculated thicknesses.
The calculation sheets are then sent to the SHIPOWNER and to the SURVEY CENTRE, when known, in advance of the survey.
One calculation sheet is available for each frame which has been pre-calculated.
The calculation sheet also indicates the concerned hold No. for each pre-calculated frame.
3 IACS URS 31 HOW THE “BULK” SYSTEM WORKSHOW THE “BULK” SYSTEM WORKS
42
3 IACS URS 31 RESULTS OF “BULK” ANALYSIS
43
3 IACS URS 31 RESULTS OF “BULK” ANALYSIS
44
3 IACS URS 31 RESULTS OF “BULK” ANALYSIS
45
3 IACS URS 31 RESULTS OF “BULK” ANALYSISRESULTS OF “BULK” ANALYSIS
46
RESULTS OF “BULK” ANALYSISRESULTS OF “BULK” ANALYSIS3 IACS URS 31
47
3 SOME PRICE
SINGLE SIDE SKIN BULK CARRIERS
EXISTING SHIPS NEW SHIPS
ITEM BUILT BEFORE BUILT AFTERCONTRACTED
AFTERCONTRACTED
AFTER PRICE [€]July 1st. 1998 July 1st. 1998 JULY 1st. 2003 January 1st. 2004
SIDE WEBS URS 31(*) URS 12 URS 12 URS 12 3000-5000TRANSVERSE BULKHEAD BETWEEN HOLD N.1 AND
HOLD N.2 URS 19(*)DOUBLE BOTTOM HOLD
N.1 URS 22(*)ALL TRANSVERSE
BULKHEADS URS 18(*) URS 18(*) URS 18(*)DOUBLE BOTTOM ALL
HOLDS URS 20(*) URS 20(*) URS 20(*)
LONGITUDINAL STRENGTH URS 17 URS 17 URS 17CLOSING DEVICES HATCH-
COVERS N.1& N.2 URS 30 URS 30 URS 30 URS 21 1000SMALL HATCHES ON
EXPOSED FORE DECK URS 26 URS 26 URS 26 URS 26 1000REINFORCEMENTS OF
DECK FORE EQUIPMENTS AND OUTFITTINGS URS 27 URS 27 URS 27 URS 27 1000
HATCH-COAMINGS & HATCHCOVERS URS 21
FITTING OF A FORECASTLE URS 28
MASS CURVES URS 25(*) URS 25(*)
(*) VERIFIED WITH SOFTWARE "BULK"Full package of URS 26, 27, 30, 31: € 5500
“BULK” is available free of charge from BV internet site
“BULK” is available free of charge from BV internet site
48
THANK YOU FOR YOUR ATTENTION