CAR FERRY HIGH SPEED, LIGHT CRAFT AND NAVAL SURFACE CRAFT RULES FOR CLASSIFICATION OF DET NORSKE VERITAS SPECIAL SERVICE AND TYPE ADDITIONAL CLASS

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1 RULES FOR CLASSIFICATION OF HIGH SPEED, LIGHT CRAFT AND NAVAL SURFACE CRAFT SPECIAL SERVICE AND TYPE ADDITIONAL CLASS PART 5 CHAPTER 2 CAR FERRY JANUARY 2009 CONTENTS PAGE Sec. 1 Gener Regutions... 5 Sec. 2 Arrngement... 7 Sec. 3 Structures, Equipment... 8 Sec. 4 Fire Sfety - Cr Ferries Sec. 5 Contro nd Monitoring Veritsveien 1, NO-1322 Høvik, Norwy Te.: Fx:

2 CHANGES IN THE RULES Gener The present edition of the rues incudes dditions nd mendments decided y the Bord in Decemer 2008 nd supersedes the Jnury 2002 edition of the sme chpter. The rue chnges come into force s indicted eow. This chpter is vid unti superseded y revised chpter. Suppements wi not e issued except for n updted ist of minor mendments nd corrections presented in Pt.0 Ch.1 Sec.3. Pt.0 Ch.1 is normy revised in Jnury nd Juy ech yer. Revised chpters wi e forwrded to suscriers to the rues. Buyers of reprints re dvised to check the updted ist of rue chpters printed Pt.0 Ch.1 Sec.1 to ensure tht the chpter is current. Min chnges coming into force 1 Juy 2009 Sec.1 Gener Requirements A new item E102 hs een inserted covering requirements for Fiure Mode nd Effect Anysis (FMEA) s consequence of the HSC Code. The susequent item hs een renumered. The renumered item E104 hs een mended to cover documenttion of contro nd monitoring systems of ow doors nd teevision surveince. Te D1 hs een deeted. Sec.5 Contro nd Monitoring This new section hs een introduced to cover requirements for instrumenttion nd utomtion ddition to those given in Pt.4 Ch.9 Contro nd Monitoring System nd Pt.4 Ch.14 Steering Ger. Corrections nd Crifictions In ddition to the ove stted rue requirements, numer of corrections nd crifictions hve een mde to the existing rue text. Comments to the rues my e sent y e-mi to rues@dnv.com For suscription orders or informtion out suscription terms, pese use distriution@dnv.com Comprehensive informtion out DNV nd the Society's services is found t the We site Det Norske Verits Computer Typesetting (Adoe FrmeMker) y Det Norske Verits Printed in Norwy If ny person suffers oss or dmge which is proved to hve een cused y ny negigent ct or omission of Det Norske Verits, then Det Norske Verits sh py compenstion to such person for his proved direct oss or dmge. However, the compenstion sh not exceed n mount equ to ten times the fee chrged for the service in question, provided tht the mximum compenstion sh never exceed USD 2 miion. In this provision "Det Norske Verits" sh men the Foundtion Det Norske Verits s we s its susidiries, directors, officers, empoyees, gents nd ny other cting on ehf of Det Norske Verits.

3 Pt.5 Ch.2 Contents Pge 3 CONTENTS SEC. 1 GENERAL REGULATIONS... 5 A. Cssifiction...5 A 100 Css nottion...5 A 200 Definitions...5 B. Appiction...5 B 100 The HSC Code...5 B 200 Crs...5 C. Sfety for Persons Onord...5 C 100 Gener...5 D. Service Restrictions...5 D 100 Gener...5 E. Documenttion...6 E 100 Pns nd prticurs...6 SEC. 2 ARRANGEMENT... 7 A. Hu Arrngement...7 A 100 Gener...7 A 200 Coision ukheds...7 A 300 Doors nd ccess openings...7 A 400 Signords...7 B. Bow Arrngement...7 B 100 Bow rmp rrngement...7 B 200 Structur rrngement...7 B 300 Cosing nd securing rrngement...7 SEC. 3 STRUCTURES, EQUIPMENT... 8 A. Whee Lodings nd Cr Deck Structure... 8 A 100 Design ods...8 A 200 Stee pting...9 A 300 Stiffeners of stee...10 A 400 Stee girders...10 A 500 Auminium pting...10 A 600 Auminium stiffeners...10 A 700 Auminium girders...11 B. Stiity B 100 Gener...12 C. Bige Arrngement or Dringe C 100 Dringe...12 D. Bow Door Structure D 100 Design ods...12 D 200 Strength criteri...12 D 300 Cosing rrngement strength...12 SEC. 4 FIRE SAFETY - CAR FERRIES A. Appiction A 100 Appiction...14 SEC. 5 CONTROL AND MONITORING A. Gener Requirements A 100 Gener...15 B. System Design B 100 Gener...15

4 Pt.5 Ch.2 Contents Pge 4

5 Pt.5 Ch.2 Sec.1 Pge 5 SECTION 1 GENERAL REGULATIONS A. Cssifiction A 100 Css nottion 101 High Speed nd Light Crft uit in compince with the requirements for the nottion Pssenger nd in ddition to the reevnt requirements in this chpter my e given one of the foowing css nottions: Cr Ferry A, (or B), (or C). Ch.1 Sec.2 A201 nd B201 re not ppice to crft with nottion Cr Ferry C. Guidnce note: Ch.1 Sec.2 A201 reds: The numer of pssengers used for the mximum oding condition of the crft sh e estished from the numer of permnent sets on ord. Ch.1 Sec.2 B201 reds: On ord high speed crft sfety ets sh e provided for sets from which the crft cn e operted. ---e-n-d---of---g-u-i-d--n-c-e---n-o-t-e Crft rrnged for crrige of vehices in encosed spces nd uit in ccordnce with the reevnt requirements s specified my e given the css nottion Cr Ferry A. 103 Crft rrnged for crrige of vehices on wether deck or in open ro-ro spces uit in ccordnce with reevnt requirements for open ro-ro crgo spce my e given the css nottion Cr Ferry B. 104 Crft with n opertion speed of ess thn 25 knots, nd rrnged for crrige of vehices on wether deck, my e given the css nottion Cr Ferry C. 105 For crft with cr ferry css nottion sttement of the tot effective deck re for crs wi e entered in the Register of vesses cssed with DNV, e.g. 850 m 2 crdk. 106 Text quoted from the 2000 Interntion Code of Sfety for High-Speed Crft (2000 HSC Code) is printed in itics. 107 For the ppiction of these rues, wherever the term Administrtion is quoted, this sh e red s Society. A 200 Definitions 201 Speci ctegory spces re those encosed spces intended for the crrige of motor vehices with fue in their tnks for their own propusion, into nd from which such vehices cn e driven nd to which pssengers hve ccess, incuding spces intended for the crrige of crgo vehices. (HSC Code ) 202 Ro-ro crgo spces re spces not normy sudivided in ny wy nd extending to either sustnti ength or the entire ength of the ship in which goods (pckged or in uk, in or on ri or rod crs, vehices (incuding rod or ri tnkers), triers, continers, pets, demounte tnks or in or on simir stowge units or others receptces) cn e oded nd unoded normy in horizont direction. 203 Open ro-ro crgo spces re ro-ro crgo spces either open t oth ends, or open t one end nd provided with dequte ntur ventition effective over their entire ength through permnent openings in the side pting or deckhed. 204 Cosed ro-ro crgo spces re ro-ro crgo spces which re neither open ro-ro crgo spces nor wether decks. 205 Wether deck is deck which is competey exposed to the wether from ove nd from t est two sides. 206 Cr Ferry A: Cr ferries with speci ctegory spces. 207 Cr Ferry B: Cr ferries with crs in open ro-ro crgo spces or on wether deck. 208 Cr Ferry C: Cr ferries with crs on wether deck. 209 Open vehice spces re spces:.1 to which ny pssengers crried hve ccess;.2 intended for crrige of motor vehices with fue in their tnks for their own propusion; nd.3 either open t oth ends or open t one end nd provided with dequte ntur ventition effective over their entire ength through permnent openings in the side pting or deckhed or from ove. (HSC Code ) B. Appiction B 100 The HSC Code 101 The requirements of this chpter ppy to crft which my e defined within the Interntion Code of Sfety for High Speed Crft (the 2000 HSC Code), ut so to crft which my e operted under equivent certifictes. 102 The requirements in this chpter ppy to crft intended for regur trnsport of pssengers nd vehices. Requirements isted in Ch.1 for Pssenger nottion re so to e compied with. 103 The nottion Cr Ferry A is ppice to cr ferries with toty encosed cr deck. 104 The nottion Cr Ferry B is ppice to cr ferries with cr deck open for free ventition in t est two ends, i.e. fore nd ft or port nd strord. 105 The nottion Cr Ferry C is ppice to cr ferries where the cr deck is n open wether deck. B 200 Crs 201 Ferries my e designed for vehices of vrious weight csses nd imittions on the weight of the crs sh e cery mrked nd given in the Appendix to the cssifiction certificte. C. Sfety for Persons Onord C 100 Gener 101 Sfety mesures for crft with Cr Ferry C nottion wi e hnded on cse y cse sis, ut re in gener to compy with the 2000 HSC Code nd Pt.1 Ch.2 Sec.9. Mesures sh e tken to ensure tht there is enough spce etween the vehices to ow for esy ccess to the muster sttions in order to evcute. D. Service Restrictions D 100 Gener 101 The requirements for Cr Ferry B (or C) re normy sed on the crft operting on ntion certificte with service restriction of 20 nutic mies or ess. The Code for Dynmicy Supported Crft (DSC Code), IMO res. A.373(X)

6 Pt.5 Ch.2 Sec.1 Pge 6 ony ows for speci ctegory spces which impies Cr Ferry A. For Cr Ferry B the rrngement nd extended service restriction wi e speciy considered for ech design of crft uit under the DSC Code. 102 For crft uit under this edition of the rues sed on the HSC Code, Cr Ferry A nd Cr Ferry B wi e given the sme mximum service restrictions. Guidnce note: The HSC Code ows for this principe s the open vehice spce is defined without ny other restrictions thn for crft with speci ctegory spce. ---e-n-d---of---g-u-i-d--n-c-e---n-o-t-e The requirements for Cr Ferry C re sed on more restricted service thn the HSC Code nd equivent requirements re given without exemption from the sfety eve of the code, s descried in Pt.1 Ch.2 Sec.1 A200. Crft with the nottion Cr Ferry C wi e given service restrictions R3 or R4. E. Documenttion E 100 Pns nd prticurs 101 The foowing pns nd prticurs sh e sumitted for pprov: rrngement, scntings nd cosing ppinces for doors rrngement, scntings nd supports for move cr decks nd rmps, if ny oding mnu contining informtion on the oding conditions on which the hu scntings re sed mke nd type of vehices with reevnt od dt s mximum xe od, numer of whees on ech xe, design, whee print etc. securing pn for vehices with fstening nd securing devices rrngement of ir intkes, ventitors etc. rrngement of doors from vehice decks ccution of trnsverse strength rrngement of dringe openings or freeing ports for vehice deck oundry ukheds of the speci ctegory spces (if not incuded on other drwings), incuding mens of escpe power ventition system incuding numer of ir chnges/ hour fixed pressure wter-sprying system (mnu) fire min system porte fire extinguishers indictors on the ridge indicting when ny fire door or doors in Sec.2 B306 is cosed precutions ginst ignition of infmme vpours oction of wter or fog ppictors (minimum 3) oction of porte fom ppictors (minimum 2) rrngement of fire detectors nd c points uness shown on other drwings. 102 A Fiure Mode nd Effect Anysis (FMEA) sh e prepred for vesses required to compy with Interntion Code of Sfety for High-Speed Crft 2000 (herefter referred to s the HSC Code). The FMEA shoud foow guideines in HSC Code Annex 4 nd shoud incude t est: mchinery systems nd ssocited contros direction contro system stiiztion system integrted contro nd monitoring system eectric system. For Ctegory B Pssenger Crft, the FMEA sh tke into considertion fire nd fooding in one comprtment (except in ridge) s singe fiure scenrio. A test progrmme demonstrting concusions of the FMEA sh e prepred nd sumitted for pprov together with the FMEA. Guidnce note: Mchinery uxiiries, contro nd eectric equipment oction serving independent system sh not e pced in the sme fire zone. Proper rrngement drwings sh e incuded in the FMEA. Exemptions wi e considered in ech cse. ---e-n-d---of---g-u-i-d--n-c-e---n-o-t-e For required documenttion of instrumenttion nd utomtion, incuding computer sed contro nd monitoring, see so Pt.4 Ch.9 nd Pt.4 Ch Documenttion for contro nd monitoring systems of ow doors nd teevision surveince sh e sumitted for pprov in ccordnce with requirements stted in Pt.4 Ch.9 Sec.1.

7 Pt.5 Ch.2 Sec.2 Pge 7 SECTION 2 ARRANGEMENT A. Hu Arrngement A 100 Gener 101 Speci ctegory spces sh e structury seprted from the operting comprtment, pssenger ccommodtion nd evcution routes s effectivey s prctic. If the djcent rrngement of these spces is permitted, provision sh e mde for esy evcution of the pssenger ccommodtion wy from the speci ctegory spce. A 200 Coision ukheds 201 Coision ukhed sh e rrnged in ccordnce with Pt.3 Ch.1 Sec.1 B300. A 300 Doors nd ccess openings 301 Arrngements nd scntings of doors in ship s side nd ends re in gener to stisfy the requirements given for the min css, with reevnt dditions s given eow. 302 For ferries with the css nottion Cr Ferry A wrning indictor ights for open or ocked doors sh e rrnged so on the ridge. 303 For ferries with the css nottion Cr Ferry B or Cr Ferry C openings in sides nd ends eding to the vehice deck need not hve cosing ppinces. 304 Doors nd si heights re in gener to stisfy the requirements given for the min css. 305 Doors eding from vehice deck to engine room sh hve si heights not ess thn 380 mm. Other doors eding from vehice deck within cosed superstructure to spces eow freeord deck, re in no cse to hve si heights ess thn 230 mm. Access htches for inspection of void spces do not require ny si heights. 306 Rmps used for emrktion or disemrktion of pssengers to e fitted with suite porte hndris. A 400 Signords 401 NO SMOKING signs sh e posted t entries to vehice spce. Such signs re so to e prominenty dispyed in the vehice spce. B. Bow Arrngement B 100 Bow rmp rrngement 101 Bow doors sh e situted ove the freeord deck. 102 Where ow doors re eding to compete or ong forwrd encosed superstructure, n inner door sh e fitted. The inner door sh e prt of the coision ukhed. A vehice rmp my e rrnged for this purpose, provided the regutions concerning the position of the coision ukhed re fufied. See A201. If this is not possie seprte inner door hs to e insted. 103 Bow doors sh e so fitted s to ensure tightness consistent with opertion conditions nd to give effective protection to inner doors. Inner doors sh e wethertight, nd sh e rrnged with supports on the ft side of the doors. B 200 Structur rrngement 201 In gener the strength of ow doors sh e equivent to the strength of the surrounding structure. Impct strengthening sh e considered. 202 Bow doors of the visor or hinged opening type sh e dequtey stiffened, nd mens sh e provided to prevent ter or vertic movement of the doors when cosed. Adequte strength sh e provided in the connections of the ifting rms to the door structure nd to the ship structure. B 300 Cosing nd securing rrngement 301 Bow doors sh e fitted with dequte mens of cosing nd securing, commensurte with the strength of the surrounding structure. 302 Cosing devices sh e simpe to operte nd esiy ccessie. 303 Bow doors with cer opening re 12 m 2 sh e provided with cosing devices with n rrngement for remote contro from convenient position nd with indiction of the open/cosed position of every cosing device. The operting pne for remote controed ow doors sh e inccessie to unuthorized persons. 304 Notice ptes, giving instructions to the effect tht the doors (inner nd outer) sh e cosed nd cosing devices ocked efore eving quy side (or termin), sh e pced t the operting pne (or for sm doors t the door when no operting pne) nd on the ridge. 305 Where hydruic ceting is ppied, the system sh e mechnicy ocke in cosed position. This sh e understood to men tht, in the event of fiure of the hydruic system, the ceting wi remin ocked. 306 Indictors sh e provided on the operting pne nd on the nvigtion ridge for she doors, oding doors nd other cosing ppinces which, if eft open or not propery secured, coud ed to mjor fooding of speci ctegory spce or ro-ro crgo spce. The indictor system sh e designed on the fi to sfe principe nd sh show if the door is not fuy cosed or not secured. The power suppy for the indictor system sh e independent of the power suppy for operting nd securing the doors. 307 Mens sh e rrnged, such s teevision surveince or wter ekge system, to provide n indiction to the nvigtion ridge of ny ekge through ow doors, stern doors or ny other crgo or vehice oding doors which coud ed to mjor fooding of speci ctegory spces or ro-ro crgo spces. 308 Speci ctegory spces nd ro-ro crgo spces re either to e ptroed or monitored y effective mens, such s teevision surveince, so tht movement of vehices in dverse wether nd unuthorized ccess y pssengers cn e oserved whist the ship is underwy. Guidnce note: Items 306, 307 nd 308 ppy to pssenger ships with Ro-Ro crgo spces or speci ctegory spces s defined in SOLAS regution II-2/3. ---e-n-d---of---g-u-i-d--n-c-e---n-o-t-e Devices sh e rrnged for the doors to e secured in open position.

8 Pt.5 Ch.2 Sec.3 Pge 8 SECTION 3 STRUCTURES, EQUIPMENT A. Whee Lodings nd Cr Deck Structure A 100 Design ods 101 For individu vehices with specified rrngement nd dimensions of footprints, the design pressure is in gener to e tken s: p Q = ( n o v ) ( kn m 2 ) = extent in m of the od re perpendicur to the stiffeners (see Fig.1) v = 6 Q for moving crgo hnding vehices, hrour conditions = vertic design cceertion for the crft. The od re s indicted in Fig.1 re defined s: the footprint re of individu whees or the rectngur enveoped re of footprints of whee group. Q n o = mximum xe od in t = numer of ods res on the xe = extent in m of the od re pre to the stiffeners (see Fig.1) In gener the scntings sh e checked ccording to oth definitions. If, however, the distnce e etween individu footprints is ess thn the redth 1 of the prints, the od re my normy e ccuted for the group of whees ony. Numer of whees in group Footprint dimensions (re contct res etween tyres nd deck) Design od re for xe perpendicur to stiffeners Design od re for xe pre to stiffeners AXLE s Singe whee 1 1 s s 1 Doue whees e 1 s 1 s 1 e Tripe whees 1 e s 1 1 Fig. 1 Definition of od re

9 Pt.5 Ch.2 Sec.3 Pge If the rrngement nd dimensions of footprints re not vie for vehices with pneumtic tyres the design pressure my normy e tken s: p o = mximum tyre pressure in kn/m 2. = for crgo hnding vehices uness otherwise specified = 120 Q + 3 for rod trnsporters uness otherwise specified w = 1.0 in gener = 1.20 when doue whees re specified = 1.27 when tripe whees re specified v = s given in 101. The od re dimensions re in gener to e tken s: k = k 1 in gener k 1 = 2.0 for singe whee = 2.0 for mutipe whees with xe pre to stiffeners = 0.8 for doue whees with xe perpendicur to stiffeners = 0.5 for tripe whees with xe perpendicur to stiffeners A k 2 = s A = p = k 2 for pting when k 2 < k 1 nd Q nd n o = s defined in 101 p o ( v ) = ( kn/m 2 ) 9.81w 9.81wQ ( m 2 ) n o p o = ka ( m) = A k ( m) wq n o s c = for < s = s for > s p, nd = s given in 100 m = m = for /s rger thn 1.0. Between specified vues of /s the m-vue my e vried inery. The m-vue my so e otined from Fig.2. σ 4.2 k w = , mximum 1.0 for 1.94s s = 320 f 1 N/mm 2 (mximum) in gener for segoing conditions = 370 f 1 N/mm 2 (mximum) in gener for hrour conditions = s given in Te A1, ut not exceeding the ove gener mximum vues, for upper deck within 0.4 L midships. For upper deck etween 0.4 L midships nd 0.1 L from the perpendicurs σ sh e vried inery. For tween decks σ sh e found y iner interpotion etween upper deck vue nd gener mximum vue tken t the neutr xis. Te A1 Aowe ending stress for upper deck pting within 0.4 L midships Arrngement Condition σ in N/mm 2 Longitudiny stiffened Segoing R1-R3 280 f (f 1 f 2 ) Longitudiny stiffened Hrour R4-R5 355 f (f 1 f 2 ) Trnsversey stiffened Segoing R1-R3 185 f (f 1 f 2 ) Trnsversey stiffened s for s -- s Hrour R4-R5 285 f (f 1 f 2 ) n o = 2 uness otherwise specified. 103 For hevy vehices where the stowing nd shing rrngement my significnty ffect the od distriution t se, the design pressure for individu od res wi e speciy considered. 104 Deck res for whee ods from crgo hnding vehices, which re frequenty operting in directions, sh e checked for design ods with xe pre nd perpendicur to stiffeners. A 200 Stee pting 201 The thickness of stee deck pting sujected to whee oding sh not e ess thn: k t 77.4 k k w csp = t k ( mm) mσ = s/ mximum 1.0 for s/ = 0.4 minimum 0.85 for s/ = 1.0 Fig. 2 Bending moment fctor (m-vues) x = --, not greter thn 1.0 for pting s

10 Pt.5 Ch.2 Sec.3 Pge 10 x 202 In Fig.3 d the gener thickness requirements of deck pting sujected to vrious whee oding from pneumtic tyres re given. The foowing prmeter vues hve een ssumed: tyre pressure: p o = 800 kn/m 2 spect rtio of pte fied: /s 2.5 owe stress: σ = 370 N/mm 2 corrosion ddition: t k = 0 mm. A 300 Stiffeners of stee 301 The section moduus for deck ems nd ongitudins sujected to whee oding sh not e ess thn: k z = 1.0 for /s < 0.6 nd /s > 3.4 = = for 1.0 < /s < 3.4 s s c = s given in 201 d = for < = for >, nd p = s given in 100 m = m = m = r = fctor depending on the rigidity of girders supporting continuous stiffeners, tken s 29 uness etter support conditions re demonstrted = 38 when continuous stiffener my e considered s rigidy supported t ech girder. Between specified vues of / the m-vue my e vried inery. The m-vue my so e otined from Fig.2. σ = -, for stiffeners Z 1000k z cdp = Z mσ k ( cm 3 ) for 0.6 < /s < 1.0 s r for for1.2 < for = 160 f 1 2 N/mm (mximum) in gener for segoing conditions = 180 f 1 2 N/mm (mximum) in gener for hrour conditions = s given in Te A2, ut not exceeding the gener mximum vues, for ongitudins within 0.4 L midships. For ongitudins etween 0.4 L midships nd 0.1 L from the perpendicurs sh e vried inery. For ongitudins in tween decks s my e found y interpotion s given for pting in 201. Te A2 Aowe ending stresses for deck ongitudins Condition σ in N/mm2 302 If more thn one od re cn e positioned simutneousy on the sme stiffener spn or djcent spns, the sections moduus wi e speciy considered, sed on direct stress nysis. A 400 Stee girders 401 The scntings of girders wi e especiy considered sed on the most severe condition of moving or stowed vehices. The vehice ods sh e tken s: v = vertic design cceertion for the crft Q W = od on whee group or singe whee in tonnes. 402 The scntings of girders eing prt of compex system re normy to e sed on direct stress nysis. 403 Girders nd stiffeners sh not e scoped. Doue continuous fiet weds re normy to e used etween the pting nd the strength memer. Chin weds my e ccepted fter speci considertion when vehices re fitted with pneumtic or soid ruer tyres. 404 The necessry connection res etween stiffeners nd girders wi e speciy considered. The sher stresses sh not exceed 100 N/mm 2 in the memers to e joined nd 115 N/ mm 2 in the wed mteri. A 500 Auminium pting 501 The thickness of uminium deck pting for whee oding sh not e ess thn s given in 201 with the owe stress σ, given s: σ = σ 0 f 1 σ 0 = 180 N/mm 2 (mximum) in gener for segoing conditions = 210 N/mm 2 (mximum) in gener for hrour conditions f 1 = s given in Pt.3 Ch.3 Sec.1 A200 with respect to pte mteri yied stress given in Pt.3 Ch.3 Sec.2, Tes B1, B2, B3 nd B4. A 600 Auminium stiffeners 601 The section moduus of uminium deck stiffeners for whee oding sh not e ess thn s given in 300 with the owe stress σ, given s: σ 0 f 1 Segoing R1-R3 Hrour R4-R5 z n z 225f 1 135f z n z n z 225f 1 85f z n P V = Q W ( v ) ( kn) σ = σ 0 f 1 = 160 N/mm 2 (mximum) in gener for segoing conditions R1-R3 = 180 N/mm 2 (mximum) in gener for hrour conditions R1-R3 = s given in Pt.3 Ch.3 Sec.1 A200 with respect to stiffener mteri yied stress given in Pt.3 Ch.3 Sec.2, Tes B1, B2, B3 nd B4.

11 Pt.5 Ch.2 Sec.3 Pge 11, r = s given in 101 nd 301, respectivey. A 700 Auminium girders 701 The section moduus of trnsverse deck ems nd girders sujected to whee oding sh not e ess thn s given for stiffeners in 600. ) SINGLE WHEEL, GENERAL c) DOUBLE WHEELS, AXLE PERPENDICULAR TO STIFFENERS ) DOUBLE WHEELS, AXLE PARALLEL TO STIFFENERS Fig. 3 Stee pte thickness for whee odings d) TRIPLE WHEELS, AXLE PARALLEL TO STIFFENERS

12 Pt.5 Ch.2 Sec.3 Pge 12 B. Stiity B 100 Gener 101 Stiity to e in ccordnce with Ch.1 Sec.3 B. F Z F Z h C. Bige Arrngement or Dringe C 100 Dringe 101 Speci ctegory spces ove ukhed deck to e fitted with scuppers tht wi ensure tht the wter is rpidy dischrged directy overord. 102 Scuppers sh prevent the fow of ir into the speci ctegory spce. F X A y F y A z A X A X D. Bow Door Structure D 100 Design ods 101 For outer doors the design se pressure p s is in gener to e tken s: p s = p in Pt.3 Ch.1 Sec.2 C For outer doors the design ow impct pressure is in gener to e tken s: p s = p s in Pt.3 Ch.1 Sec.2 C500. with the correction for the fctor C h, nd with design od re tken s L B w /1 000 (m 2 ). 103 The design pressures nd forces re normy to e ccuted t the position h/2 ove the ottom of the door nd / 2 ft of the stem ine. For outer doors of unusu form, proportions or compicted geometry, the res nd nges used for determintion of the design vues of extern forces my require speci considertion. 104 The extern design forces on ech hf of the outer door for support devices, incuding supporting structur memers nd surrounding structures, re given y: tot ongitudin force: F x = p s A x or 1.3 p s A x, if greter tot trnsverse force: F y = p s A y or 1.3 p s A y, if greter tot vertic force: F z = p s A z or 1.3 p s A z, if greter. The vertic force sh not e tken ess thn 3.3 h., nd h re redth, ength nd height of the outer door in m s given in Fig.4. A x = re (m 2 ) of the vertic front view projection of the outer door t one side of the centre ine, etween the eves of the ottom of the door nd the wether deck or etween the ottom of the door nd the top of the door, whichever is the esser. A y = re (m 2 ) of the vertic side view projection of the outer door, etween the eves of the ottom of the door nd the wether deck or etween the ottom of the door nd the top of the door, whichever is the esser. A z = re (m 2 ) of the horizont projection of the outer door t one side of the centre ine, etween the eves of the ottom of the door nd the wether deck or etween the ottom of the door nd the top of the door, whichever is the esser. For outer doors, incuding uwrk, of unusu form or proportions, the res nd nges used for determintion of the design vues of extern forces my require speci considertion. Fig. 4 Bow doors F y A z D 200 Strength criteri 201 Scntings of primry memers nd supports of ow doors sh e determined to withstnd the design pressures using the owe stresses in Te D1. Te D1 Aowe stresses, outer doors Mteri Design pressure p (N/mm 2 ) Sher stress τ (N/mm 2 ) Bending or norm stress σ (N/mm 2 ) Equivent stress σ e (N/mm 2 ) Stee p s 80 f f f p s 105 f f f 1 Auminium p s 90 f f f p s 90 f f f 1 f 1 = mteri fctors: Stee, see Pt.3 Ch.2 Sec.2 C, uminium, see Pt.3 Ch.3 Sec.2 B. 202 Nomin ering pressure, determined y dividing the design force y the projected ering re, sh not exceed 0.8 σ F (N/mm 2 ) for stee mteris, where σ F is the yied stress for the ering mteri. For other ering mteris the nomin ering pressure wi e speciy considered. D 300 Cosing rrngement strength 301 In gener the mximum forces cting on the supports sh e estished on the sis of the extern force s given in 104. The foowing cses sh e considered: ) For outer doors of the visor type the forces cting on the supports sh e determined for the foowing comintion of simutneous design forces: 1) 2 F x nd 2 F z 2) 1.4 F x, 0.7 F y nd 1.4 F z, with 0.7 F y cting terntivey from either side. ) For outer doors of the side hinged type the forces cting on the supports sh e determined for the foowing comintion of simutneous design forces: 1) F x, F y nd F z, with ech force cting on oth doors 2) 0.7 F x, 0.7 F y nd 0.7 F z, cting on ech door seprtey.

13 Pt.5 Ch.2 Sec.3 Pge 13 Guidnce note: The support forces s determined ccording to 1) nd 1) sh in gener give rise to zero moment in the ongitudin vertic pne out the trnsverse xis t h/2 nd /2. ---e-n-d---of---g-u-i-d--n-c-e---n-o-t-e For outer doors effective supports incuding surrounding door nd hu structur memers re, in the cse of fiure of ny singe support, to hve sufficient cpcity to withstnd the tot design forces. In this cse the owe stresses given in Te D1 my e incresed y 20%. 303 For outer doors of the visor type, t est two securing devices sh e provided t the ottom of the door, ech cpe of providing the fu rection force required to prevent opening of the door within the owe stresses given in Te D1. The opening moment to e nced y the sid rection force sh not e tken ess thn: M 0 = 1.3 (10 W d + 5 A x ) (knm) W = mss of the door (t) = vertic distnce (m) from visor hinge to the centroid of the vertic projected re of the ow visor d = vertic distnce (m) from hinge xis to the centre of grvity of the door A x = s defined in A od trnsmitting eements in the design od pth, from the door through supports into the ship structure, incuding weded connections, sh e to the sme strength stndrd s required for the supports. 305 The ifting rm of visor type outer door nd its connections to the door nd hu structure sh e dimensioned for the sttic nd dynmic forces ppied during ifting nd owering opertions. A minimum wind pressure of 1.5 kn/m 2 sh e tken into ccount.

14 Pt.5 Ch.2 Sec.4 Pge 14 SECTION 4 FIRE SAFETY - CAR FERRIES A. Appiction A 100 Appiction 101 Cr Ferries sh e designed in ccordnce with the requirements of Pt.4 Ch.10.

15 Pt.5 Ch.2 Sec.5 Pge 15 SECTION 5 CONTROL AND MONITORING A. Gener Requirements A 100 Gener 101 For instrumenttion nd utomtion, incuding computer sed contro nd monitoring, the requirements of in this chpter re ddition to those given in Pt.4 Ch.9 nd Pt.4 Ch Ctegory B crft shoud e provided with t est two independent mens of propusion so tht the fiure of one engine or its support systems woud not cuse the fiure of the other engine or engine systems nd with ddition mchinery contros in or cose to the mchinery spce (oc contro system). (HSC Code 9.7) B. System Design B 100 Gener 101 For ctegory B crft, remote contro systems for propusion mchinery nd direction contro shoud e equipped with ck-up systems controe from the operting comprtment. (HSC Code )

16 Pt.5 Ch.2 Sec.5 Pge 16