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V.4.2.10Amendment No. V-l/91 . (Jan.)4.2.9 Loads on railway overbridges from electrical supply equipmentA bridge crossing a railway track may be requiredto carry overhead electrical supply equipment. Referenceshould be made to the appropriate railway authority for theextra loading to be carried.4.2.10 Live loadingHighway structures and their elements should bedesigned to resist type HA loading, or type HA loadingcombined with type HB loading, whichever is more severe inits effects. Generally 45 units of type HB loading shouldbe used, but for the serviceability limit state, 25 units oftype HB loading may be used when calculating crack widths inreinforced concrete, and when investigating limitations onflexural tensile stresses in prestressed concrete under loadcombination 1.Highway structures spanning less than 15 metressituated on rural roads other than trunk or main roads shouldbe designed for type HA loading only.Where special considerations indicate that alesser live load would be appropriate, the agreement ofCHE/Str to its use must first be obtained.Traffic flows, representative of those predictedto use heavily trafficked commercial routes in Hong Kong ataround the year 2011, have been mathematically simulated andstatistically analysed in order to determine characteristic(1 in 2400 chance of exceedence in a year) live load effectswhich can arise on bridge structures.It has been found that it is justifiable to useBS 5400 : Part 2, published as Appendix A to the UnitedKingdom Department of Transport Departmental StandardBD 37/88 as the basis for Hong Kong bridge loading, withamendments to suit Hong Kong traffic types as necessary.The recommendations of BS 5400 : Part 2clauses 6.2, 6.2.1 including Table 13 and Figure 10 regardingtype HA loading and clauses 6.4.1.1, 6.4.2 including Table 14and Figure 13, regarding the application of type HA loadingconsequently cannot be used, and should be replaced by thefollowing requirements based on Hong Kong conditions.4.2.10.1 Type HA loading(replaces clause 6.2 of BS 5400 : Part 2)Type HA loading consists of a uniformlydistributed load (see 4.2.10.1.1) and a knife edge load (seeclause 6.2.2 of BS 5400 : Part 2) combined, or of a singlewheel load (see clause 6.2.5 of BS 5400 : Part 2)
V.4.2.10.3Amendment Mo. V-l / 91 (Jan.)4.2.10.3 Types HA and HB loading combined(replaces clause 6.4.2 of BS 5400 : Part 2)Types HA and HB loading shall be combined andapplied as follows :-(a)Type HA loading shall be applied to the notionallanes of the carriageway in accordance withclause 6.4.1 of BS 5400 : Part 2 modified as givenin (b) below.(b) Type HB loading shall occupy any transverseposition on the carriageway / either wholly withinone notional lane or straddling two or morenotional lanes.Where the HB vehicle lies wholly within thenotional lane (eg Figure 4.2.4(1) or where the HB vehiclelies partially within a notional lane and the remaining widthof the lane, measured from the side of the HB vehicle to theedge of the notional lane, is less than 2.5 metres (eg Figure4.2.4(2) (a) ) f type HB loading is assumed to displace part ofthe HA loading in the lane or straddled lanes it occupies.No other live loading shall be considered for 25 metres infront of the leading axle to 25 metres behind the rear axleof the HB vehicle. The remainder of the loaded length of thelane or lanes thus occupied by the HB vehicle shall be loadedwith HA DDL only; HA KEL shall be omitted. The intensity ofthe HA UDL in these lanes shall be appropriate to the loadedlength that includes the total length displaced by the typeHB loading with the front and rear 25 metre clear spaces*Where the HB vehicle lies partially within anotional lane and the remaining width of the lane, measuredfrom the side of the HB vehicle to the far edge of thenotional lane, is greater than or equal to 2,5 metres(eg Figure 4.2.4(2) (b) ) , the HA UDL loading in the lane shallremain, the HA KEL shall be omitted.Only one HB vehicle shall be considered on any onesuperstructure or on any substructure supporting two or moresuperstructures.Figure 4.2.4 (replaces Figure 13 of BS 5400 :Part 2) illustrates typical configurations of type HA loadingin combination with type HB loading.
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UNIVERSITY OF HONG KONGLIBRARYHong
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NOTESThe Civil Engineering Manual o
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CONTSUTSClauseNo,TitleClans®No*Tit
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ALPHABETICAL INDEXTitleClause No.AA
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TitleClause No.GeneralGeneralGenera
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TitleClause No.PERMITS AND SHORT-TE
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TitleClause No.Safety Fences, Pedes
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¥.1*1.2 (Cont'd.)(July 7?)Item 7 s
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V.1.1.4 (Cont'd.)(July 7?)Item 22It
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Y*1*1*7 (Cont'd*)(July 77)If releva
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(July 77)££S2£§S£i^(a)This pro
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7«1*2«1 (Cont f d*(July 77)P*G«B
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(July 7?)acquire land for street wi
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V.1.2,3 (Cont'd.)(July ?7)(ii) By n
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(July 77)1 *41*4*1OHThese instructi
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(July 77)1.4.31 *4*4 FinanceMonthly
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,1«5.1 (Cont'd*)Fuly 77)(d)(vii) W
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V.1.6(July 77)1>6 KefersiacesReleva
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Appendix 1 - p«2(July 77)Pliase I
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V.1Appendix 1 - p*4(July 77)Phase I
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V. 1Appendix 1 - p*6(July 77)Phase
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V.1Appendix 1 - p.8(July 77)NotesSu
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V.1Appendix 1(July 77) - p*1QPART I
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1* PresentationHighways Office* P+V
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v.rAppendix 2 - p*3(July 77)3*7 Dgg
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Y.1Appendix 2 - p*5(July 7?)(v) des
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1* PresentationV.1Appendix 5 w P*1(
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V.1Appendix 5 -(July ?7)(b)(c)(d)lo
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V.1Appendix 4 - P»2(July 77)Schedu
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The amendment is direct conversion
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Name ofRoad/StreetApprovedDrawingBa
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The amendment is direct conversion
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JName of j ApprovedRoad/Street j Dr
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List of Roads Affeoted by Road Wide
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V.1 'Appendix 6(July 77)Prom s Chie
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Appendix 8(July 11}M'E M 0From s C.
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7.1Appendix 10(July 77)MEMOFrom $ C
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7.1Appendix 12(jtdy 77)MEMOFrom i C
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Appendix 14(July 77)Prom s D*L»Ref
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Appendix 16(July 7?)MEMOi Registrar
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V.1Appendix 1? - p«2(July 77)I? Ex
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Highways () DivisionWORKS CONTINGEN
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V.1Appendix 20(juLy 77)CHECK LIST -
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V.1Appendix 21 - p»2(July 77)FOE O
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7.1Appendix 22 - p.2(July 77)21. G.
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H.H.4.3V.1Appendix 24(July 77)Our R
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H.H.Appendix 26(July 77)HIGHWAYS (H
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V.2.2.1(July 77)2*2 PROCEDURE2 * 2
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(July 11}2.5 PRIVATEForms FGForms F
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?*2«3*1 (Cont f d«)(July 77)Appen
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?« 2.3*3 (Cont s d)(July 7?)Only o
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(July 7?)2«4 GQj^MEKT PROJECTS2«4
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Amendnent Sheet Ko» 7Formation Req
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V.2Appendix 1 - p.2(July 77)FOR ADV
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V.2Appendix 2 - p*2(July 77Îtem Ho
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Appendix 3 ~ P*1(July 7?)Notes on F
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¥.2Appendix 5 - P»3(July 77)(* in
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V.2Appendix 4 ~ p*2(July 77)3* To e
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7*2Appendix 6(July 77)Land Developm
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Appendix 7 - P*2(July 77)Land DeTel
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V.2Appendix 7 «• P*4(July 7?)Lan
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Appendix 8 — p*2(July 77)Land Dev
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¥.2Appendix 9(July 77)Authorized A
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Y.2Appendix 11(July 77)Form BProm s
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¥.3.1(July 77)CHAPTER 3MAINTEMAIGE
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(Aug* 78)3*1*2 GeneralAmentoent She
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(Aug* 78)3*1*^ Surveys3«1*5 Inspec
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(Aug. 78)3*2*4 ôcediire^^ for Work
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V.3.2.7(AUK. 78)3*2.7 Correspondenc
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¥.3.4(July 77)3*4 BUS TERMINI AID
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V.3.6(July 77)3.6 TRAFFIC AIDS3.6.1
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77)3-6.4 PrpcdurC. for T., is the a
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V.3*6*7(July 773*6,7 J?l!iMI§,4]^^
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(July 77)3.8 CI^£gANCE .........OF
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77)3«8« l * Obetructigns ........
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.3*9«2 (Cont'd.)(ill) He should ad
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V.3.10.4(July 77)3*10«4 Bailey...
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¥,3.12(July 7?)3«12 MAIHTENANCE O
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¥.3*12.2 (Cont'd.)(July 77)(e) Roa
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3J4DAKGEROTJS BOULDERS(July 77)As a
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(July 77)3« '6 MAINTENANCE OF CEME
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Appendix 1 - p»2(July 77)RemarksRe
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PointV.3Appendix 2 - p.2(July 77)Lo
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V.3Appendix 3 - P«2(July 11}Remark
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Appendix 4 ~ P*2(July 77)RemarksRec
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Appendix 5 ~ P«2(July 77)ftecommen
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V.3Appendix 6 - p.2(July 77)ROAD AN
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¥.3Appendix 7 ~P»1(July 77)Gentle
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Appendix 8(July 7?)R@f * Highways (
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HIGHWAYS OFFICEAppendix 10(July 77)
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¥.3Appendix 12(July 77)REGISTERED
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EnactmentRoad Traffic OrdinanceS.15
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Enactment Subject Authority Delegat
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SIGNS JSP MABKDjaS ~ M INSPECTION R
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OA&os&~Whltc paperIE* -paper— (Re
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Appendix 19 - p«2(July 77)18. The
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7.3Appendix 1977)* »*!»8B««2a±
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Page 198 and 199: CIVIL ENGINEERING MANUALVOLUME V RO
Page 200 and 201: Amendment No. V-l/92 (Jan.)CHAPTER
Page 202 and 203: 4.4.2.5 Creep of concreteAmendment
Page 204 and 205: Amendment No. V-l/89 (Feb.)4.12.10
Page 206 and 207: Amendment No. V-l/89 (Feb.)4.15.6 R
Page 208 and 209: Amendment No. V-l/89 (Feb)4.17.1 Ae
Page 210 and 211: Amendment No. V-l/92 (Jan.)APPENDIC
Page 212 and 213: V.4.1Amendment No. V-l/89 (Feb.)CHA
Page 214 and 215: V.4.2Amendment No. V-l/91 (Jan.)4.2
Page 216 and 217: V.4.2.2Amendment No. V-l/91 (Jan.)4
Page 218 and 219: Amendments No. V-2/84 (March)TABLE
Page 220 and 221: V.4.2.3.3Amendment No. V-l/92 (Jan.
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Page 224 and 225: V.4.2.4Amendment No. V-l/92 (Jan.)4
Page 226 and 227: V.4.2.4.3.1Amendment No. V-l/92 (Ja
Page 228 and 229: GROUP2TYPE OF CONSTRUCTIONSTEEL DEC
Page 230 and 231: V.4Appendix 4.2.1 — p. 2(November
Page 232 and 233: V.4Appendix 4 . 2 . 2 : - p . 2Amen
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Page 236 and 237: V.4Appendix 4.2.3 — p. 2Amendment
Page 238 and 239: V.4Appendix 4.2.3 - p. 4Amendment N
Page 240 and 241: V.4Appendix 4.2.4 - p. 2Amendment N
Page 242 and 243: V.4Appendix 4.2.4- p\ 4Amendment No
Page 244 and 245: V.4.2.6 (Cont'd)(Noveitiber / 1983)
Page 248 and 249: (1) HB vehicle within one notional
Page 250 and 251: V.4.2.10.2Amendment No. V-l/91 (Jan
Page 252 and 253: Amendment No. V-l/91 (Jan.)LoadedLe
Page 254 and 255: V.4.2.12.3(November, 1983)4.2.12.3
Page 256 and 257: 7.4.1.2(November, 1983)Highway stru
Page 258 and 259: V.4.2.2Amendments ITo d V-3/854»2
Page 260 and 261: Amendments !To» V-3/85 (July)4« 2
Page 262 and 263: DIFFERENCEFROM MEAN VOIDTEMPERATURE
Page 264 and 265: V, 4*2*4*3(!fevember f 1983)4*2®4
Page 266 and 267: TABLE A 9 64.^.0SDBPACE TEMPERATURE
Page 268 and 269: 4«2«6f 1983)Although the risk of
Page 270 and 271: 4-2.7V.4.2.7(November, 1983)4.2.7.1
Page 272 and 273: 7*4*2*8(Nbvember f 1983)Pedestrian
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Page 276 and 277: V.4Appendix 4«2«1 - p*(Bovember,
Page 278 and 279: V.4Appendix 4,2.2 - p.2(Kbvember, 1
Page 280 and 281: V.42, COLUMNS Appendix 4*2*2 - p*4(
Page 282 and 283: Appendix 4.2.5Amendment No* V-l/92
Page 284 and 285: V.4Appendix 4-3Amendments No* V-2/8
Page 286 and 287: TABLE 4.4.1CONDITIONS OF EXPOSURECO
Page 288 and 289: TABLE 4.4.2Characteristicstrength a
Page 290 and 291: 4*4*2*4 Shrinkage(Ifevember, 1983)S
Page 292 and 293: 3)oc;om•Hmm ajo mo mo(AXm mTIID o
Page 294 and 295: 4«4«2*6 Coefficient of thermal ex
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¥.4.4*4M A * n x 4 (November, 1983
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Y*4*4*4*3 (Qont'd)(November, 1983)T
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Appendix &.4.1-P21000800VDO600o»0u
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TABLE 4.4.3CHEEP INVESTIGATIONDetai
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Appendix 4.4.2-P37 10 20 50 100 200
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7*4POST-TENSIONING SYST3MSAppendix
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4.9 BBABINGS (November, 1983)4*9*1
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TABLE *f.9.1ROTATIONCLASSCLASSIFICA
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AppemSix 4.9.2SCHEDULE OF BEARINGSn
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4*10 FATIGUE(November, 1983)The rec
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«(Hbveniber, 1983)4« 11 ® 6 Psî
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(Sbvember, 1983)Experience has show
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vvSHRINKAGE, CREEP ANDPRESTRESSTHER
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V«4*11*2 (Cont'd)(November, 1983)A
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W.R. Gr a ce (HK) Ltd.CCL Systems P
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Byckerhoff and Widmann AG(Bymdag Sy
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Franki PSC LtdVfong Pa & Company Lt
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V4.12Amendment No. 7-4/85 (Sept*).4
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V4.12Amendment l N Io« ¥-4/85 (Se
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7,4*12*11*1 (Cont'd)mu • • *.
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V*4*13(November, 1983)4*13 TOUNDATI
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4* 13» 5 JteiJIJPULJfeiSlfiLM M iB
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7.4.13.6.2 (Cont'd)(November, 1983)
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lPARTICLE ! SIZE mm//^7f""""1"Tl>oo
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1»3 Overturning2» Piledv.4Appendi
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Y.4*14(November, 1983)4*14 HEADBOOM
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4,14«3 fempjeqsat;Lop, fo r. verti
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4.15 PARAPETSV.4.15(November, 1983)
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4*15«4 BesignV.4«15*4(ifovember,
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V.4«15*5*5 (Cbnt'd)(November, 1983
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4«15«6 Reinfproed i .£onoret e
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4*15.12 Sight ,digtanoea7.4*15.12(N
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TABLESTRENGTH OF BKEMFDJRCED CONCRE
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TABLE 4«15«6DIMENSIONS FOR GBDUP
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•orL^BBranMaanaI,_1 'iAODININGEDF
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15CLFOOTWAYTOP SHAPED TOCOMPLY WITH
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7*4Appendix 4*15*2 - p«1(November,
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¥.4Appendix 4«15*2 - p*34* Vehicl
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4.16 STOKMWATER DRAINAGE7.4.16(Nove
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?.4»l6«2*2(Cont*d)(November, 1983
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¥.4*16*4(Jfovember* 1983)vf' yCity
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V.4.17.2Amendments No. V-2/85 (July
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Amendments No. V-2/85 ( July )FIGUR
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a,FIGURE 4,17.5DIMENSIONS GOVERNING
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Amendments No. V-2/85 (July)Texture
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Amtndmtnis No. V-2/85 ( July)GOOD®
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Amtndmtnt* No. V-2/851 July)EXCESSI
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FIGURE 4.17.13 VISUAL INSTABILITY T
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Amendments No. V - 2 / 85 (July )SU
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¥.4*19*4.7(November^ 983)4.7 Blanc
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12* Clause 4*13*3V.4*19*12(November
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17« Clause 4.15*6V*4*19*17(Kbvembe
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RHYTHMFIGURE 4.1Z17RHYMERHYTHM AND
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V. 4.17.12Amendments No. V-2/85 (Ju
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Amendments No. V-2/85 { July)FIGURE
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V.4Appendix 4.17.1 - p.lAmendments
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V.4Appendix 4.17.1 - p.3Amendments
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4,18 OPERATIONAL CONSIDERATIONSV*4
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4«18*3«2 Maintenance accommodatio
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v.5.1(July 77)CHAPTER 5MINOR WORKS(
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(July*??)5*5 PHEPARATION OF, MINOR
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Highways""""C ) ""DivisionCheck Lis
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Name of Soad sLocation :Sub j ect1*
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(July 77)6.1 ROAD RECORDS6*1.1 Proc
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NAME OF ROAD:—STATUSLOCATIONAPPRO
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V.6Appendix 3(July -??)Road Records
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V.7.2(July, 77)7.2 DESIGN PRINCIPLE
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?*7«2,3(Cont f d)(July, 11}Because
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V*7.2.6(Cont*d)(July, 77)Suitable s
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Ew«*•*1235678TypeofroadCDFeeder6
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.* x(July 77)7.3 DESIGN DETAILS7*3*
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(July 77)provided with a cap at the
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(Jialy 77)7.3* 1 * Edge detailsPave
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(Jialy 77)gully gratings. Because i
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¥.7.5*5(Deo.* 83)- ''"gully gratin
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Ref. : ( ) in E.G. 4/3/2? Highways
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PART BAdditional Requirements to Se
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- 5designed accordingly, rather tha
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FIG. 7.3.6.2GULLY-325 GRATINGFLEXIB
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"FfG. 7. 3.6.4 'UNTRAPPED GULLY{ WI
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a — ooDOUBLE GULLIES ATLOW POINTS
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Figure g. 7.2Relation,, between cum
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Cumulative number of commercial veh
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»uwauy200too1BMMK mmtm lillll T*
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awu200I II ,.„i MMOn strong subgr
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Weight of reinforcement CKg/irr)oOO
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Figure T. 7.12 Gully with opening g
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"I _1NOT.E : All D!MEf4SIQNS IN MIL
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STAHOA.
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STANDARD C.I. GULLY GRATINGREF DftG
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[HKPJ624H77CXOlbMfltHHDate Due
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