1. For the benefit of business and people
IACS latest developments
URS 31 Side frames verification
PMA Permanent Means of Access
Dubai, March 26th.2004
Andrea Zamburlini - Paris
For the benefit of business and people

2. Part 1
Latest IACS Rule development
Part 2
Situation on Permanent Means of Access
Part 3
URS31 and software « BULK »

3. Latest IACS Rules developments
Part 1
Latest IACS Rules developments

4. IACS REQUIREMENTS 1
IACS REQUIREMENTS
IACS IS INVOLVED IN THE DEFINITION OF THE FUTURE NEW RULES TO INCREASE SHIP’S STRENGTH
HURRICANE CLAUDET – PACIFIC OCEAN

5. IACS REQUIREMENTS 1
IACS REQUIREMENTS

6. 1 RULES ENTERED INTO FORCE AFTER JULY 1ST. 1998: IACS REQUIREMENTS
EXISTING SHIPS
URS 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. 1 RULES ENTERED INTO FORCE AFTER JULY 1ST. 2003: IACS REQUIREMENTS
EXISTING AND NEW SHIPS
IACS REQUIREMENTS
URS 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
URS 25: NEW LOADING CONDITIONS
1st.July 2003 (contract)
UISC (EX URS 24): WATER INGRESS ALARMS
1st.July 2004 (built)

8. 1 ? ? RULES TO COME: FUTURE NEW SHIPS IACS REQUIREMENTS
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)
1st.July 2004 (built)
1st.July 2003 (contract)
1st.Jan 2004 (contract)
1st.July 1998 (built)

9. IACS future work programme
IACS work 1
IACS future work programme

10. IACS future work programme
IACS work 1
IACS future work programme
LRS, ABS and DNV

11. IACS work 1
IACS future work programme

12. IACS future work programme
IACS work 1
IACS future work programme

13. IACS future work programme
IACS work 1
IACS future work programme

14. IACS work 1
JTP & JBP SCHEDULE

15. Permanent Means of Access
Part 2
Permanent Means of Access

16. 2 Background SOLAS New Regulation II-1 / 3.6
SOLAS Background
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
 500 gross tonnage
 20,000 gross tonnage
Application date of Reg 3.6 & TP:
Oil tankers & Bulk carriers constructed on or after 1st January 2005 ?

17. 2 Background DE-47 Industry reacted against the existing text in 2003
SOLAS Background
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

18. SOLAS Amended Regulation II-1 / 3.6

19. 2 Amended Solas II-1 / Reg 3.6 Means of access No modification for :
SOLAS Amended Reg II-1/3.6
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 General Technical Specifications
Reg  : Means of access: Each space shall be provided with a (permanent deleted) means of access..
Reg3.6 §3.1 : Safe access to cargo holds, ballast and other spaces
Reg3.6 §3.2&3.3 : Number and Arrangement of access
Reg3.6 §4 : Ship structure access manual ?

20. General Technical Specifications2
General Technical Specifications
SOLAS Amended Reg II-1/3.6
Access through Horizontal openings, hatches or manholes :
Minimum clear opening 600 x 600 mm & Corner radii up to 100 mm Max (IACS Interp.)
Access through Vertical 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
Height > 600 mm
Steps & handgrips
It should be demonstrated that an injured person can be easily evacuated
5.3 For oil tankers of less than 5,000 tonnes deadweight, the Administration may approve, in special circumstances, smaller dimensions for the openings referred to in paragraphs 5.1 and 5.2, if the ability to traverse such openings or to remove an injured person can be proved to the satisfaction of the Administration.
Oil tankers DWT < 5000 t
Adm may approve smaller dimensions ?

21. Amended Technical Provisions MSC 133(76)
SOLAS
Amended Technical Provisions MSC 133(76)

22. Means of Access to cargo and other spaces2
Means of Access to cargo and other spaces
SOLAS Amended TP MSC 133(76)
Forward Ballast tanks: Included
Each space within the cargo area Shall be provided with a Means of Access (Except Double bottom spaces)
Regulation not applied to Chemical Carriers engaged in intermittent carriage of oil cargoes ?

23. 2 Preamble PMA : Designed to be integral parts of structure
SOLAS Amended TP MSC 133(76)
PMA  : Designed to be integral parts of structure
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
Opening in stringer plating utilized as PMA:
Safe guards
Or Grid cover ?

24. Technical Provisions What changed ?2
Technical Provisions What changed ?
SOLAS Amended TP MSC 133(76)
Technical provisions
Structural members subject to Close-up Insp. & Thick. measurements : Permanent Means of Access  2 tables (Except Double bottom)
Oil Tanker Wing 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  : “Tunnels passing trough cargo holds shall be equipeped with ladders or steps at each end of the hold so that personnel may easily cross such tunnels”
Tunnels  Requirement Deleted ?

25. Technical Provisions What changed ? ..2..
SOLAS Amended TP MSC 133(76)
Permanent Inclined Ladders
Flight : Vert Height  6 m
Resting platform : Vert Height  6 m
Width :  400 mm
Treads : Equally spaced  Vert distance 300
Vertical & Spiral Ladders
Width & Construction
International or National Standards accepted by the Administration
Alternative means of access (not exhaustive list)
TP 4 : Permanent Inclined Ladders
Flight : Vert Height <= 6 m (instead length= 9m)
Resting platform : Vert Height <= 6 m (distance specified)
Width : < 400 mm
Treads : Equally spaced 200(instead 150) <= Vert distance <= 300
TP 13.7 spiral ladders : Not input IACS interpretation on width, treads & platform
Clear Width – minimum [400][600] mm
Treads - a horizontal tread should be provided.
Platforms – a tread through a [30o ][90o] arc is considered to provide an adequate resting platform
IACS : Innovative design is to be accepted if it fits for the functional requirements with due consideration for safe use.
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 ?

26. Bulk Carriers : Access ladders to cargo hold2
Bulk Carriers  : Access ladders to cargo hold
SOLAS Amended TP MSC 133(76)
Access ladders to cargo spaces
Vertical distance  6 m  Vertical or series of inclined ladders
Vertical distance > 6 m :
Inclined ladders at one end of cargo hold
Vertical ladder at the other end of cargo hold
Uppermost 2.5m : Vertical ladder
Flight  : vertical Height  6 m Linking platforms
TP13 : Access ladders to cargo hold (this slide) and other spaces (next slide)
TP13.1 Existing
TP13.2 : Inclined ladder at one end & at the other, may be vertical
Inclined ladders : linking platform as required in TP5
Lowest 6m : Vertical ladder ?

27. Bulk Carriers : Access ladders to other spaces2
Bulk Carriers  : Access ladders to other spaces
SOLAS Amended TP MSC 133(76)
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
TP13.3  :Access to TST Vert D < 6
TP13.4 &13.5 vert dist > 6
TP13.6 : Double side skin spaces
TP13.7 : Spiral ladders ?

28. Technical Provisions: Tables for Oil Tankers and Bulk Carriers

29. 4 Table Content Technical provisions : 2 Tables
SOLAS Amended TP Tables
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 ?

30. Bulk Carriers - Cargo holds 1/2
Bulk Carriers - Cargo holds 1/
Table 2 Bulk Carriers Amended TP MSC 133(76)
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
1.1 underdeck structure : 3 long PMA
1.2 underdeck structure : equivalent solution : athwartship PMA
1.4 Transv Bhd with full upperstool and Access from main deck : No PMA to Cross deck area ?

31. Bulk Carriers - Cargo holds 2/
Table 2 Bulk Carriers Amended TP MSC 133(76)
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 to 1.11 ?

32. Bulk Carriers - Ballast Tanks2
Bulk Carriers - Ballast Tanks
Table 2 Bulk Carriers Amended TP MSC 133(76)
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 girder Longit. structure on sloping may be used
H < 6 m
Alternative means
It should be demonstrated that means of access may be brought into the bilge tank
Double Hull : Same as for Oil Tankers
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
Table 2  : 2.1 to 2.8
TST H>6 : 2.1 to 2.3 ; H<6 : 2.4
Bilge hopper : H>6 : 2.5 & 2.6; H<6 : 2.7
Double side skin : 2.8 same as for oil tanker
Fore peak Tank : 2.9 same as for oil tanker Table 1 §1.3 (See slide25 for both)
Alternative Solution (Min 1.6 m below the knuckle)
For DSS, L Cont PMA may be within 6m from knuckle, IF in combination with Alternative means ?

33. Oil Tankers & Bulk Carriers Fore Peak Tank2
Oil Tankers & Bulk Carriers Fore Peak Tank
Table 1 & 2 Amended TP MSC 133(76)
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

34. Future Evolution

35. Application date of Amendments ? SOLAS II-1Reg. 3.6 & TP Amended2
Next Steps
Future Evolution
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 ?
MSC Dec 2004
Application date of Amendments ?
SOLAS II-1Reg. 3.6 & TP Amended
1.1.05
SOLAS II-1Reg. 3.6 & TP 2002 Text
DE Mar 2004
IMO Assembly Dec 2003
Request of Revision
MSC May 2004
Proposed amendments Reg II-1/3.6 & TP
New Interpretations ?

36. VERIFICATION OF SIDE WEBS FOR THE EXISTING BULK CARRIERS
Part 3
URS 31
VERIFICATION OF SIDE WEBS FOR THE EXISTING BULK CARRIERS

37. 3 IACS UR S31 for existing ships BULK IACS URS 31 Bulk Carrier Safety
Checking new IACS structural unified requirements

38. URS 31 – STRENGTH OF SIDE WEBS
IACS URS 31
URS 31 – STRENGTH OF SIDE WEBS

39. WHAT IS “BULK” SOFTWARE3
IACS URS 31
WHAT 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.

40. HOW THE “BULK” SYSTEM WORKS3
IACS URS 31
HOW THE “BULK” SYSTEM WORKS
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

41. HOW THE “BULK” SYSTEM WORKS3
IACS URS 31
HOW THE “BULK” SYSTEM WORKS
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.

42. RESULTS OF “BULK” ANALYSIS3
IACS URS 31
RESULTS OF “BULK” ANALYSIS

43. RESULTS OF “BULK” ANALYSIS3
IACS URS 31
RESULTS OF “BULK” ANALYSIS

44. RESULTS OF “BULK” ANALYSIS3
IACS URS 31
RESULTS OF “BULK” ANALYSIS

45. RESULTS OF “BULK” ANALYSIS3
IACS URS 31
RESULTS OF “BULK” ANALYSIS

46. RESULTS OF “BULK” ANALYSIS3
IACS URS 31
RESULTS OF “BULK” ANALYSIS

47. “BULK” is available free of charge from BV internet site3
SOME PRICE
“BULK” is available free of charge from BV internet site

48. THANK YOU FOR YOUR ATTENTION