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Amtndmtnt* No. V-2/851 July)EXCESSIVE Ft ARECONTRADICTS FUNCTIONOF NARROW iASi §YIMPLYING INSUFFICIENTSTABILITYMODERATE FLARETO SUPPORT SEARINGSDOES NOT DETRACTFROM APPARENT STABILITYAT COLUMN BASEFIGURE 4.17.12 EXPRESSIONSTABILITYOF FUNCTION
V.4.17.8Amendments No. V-2/85 (July)4.17.8 Visual StabilityFor visual stability, particularly when viewed from apassing vehicle, a bridge requires a sufficient measure ofverticality. The apparent inclination of sloping supports may changefrom different angles of view, giving the impression that decks areslipping off, or piers falling over, as the observer travels by.Other inclined members can intensify the effect. Even when viewedfrom a static viewpoint, trapezoidal supports used on a long curvingbridge can give the impression of varying in shape or tilting atdifferent angles. This effect is illustrated in Figure 4.17.13.Inclined members are not inherently visually unstable, but designersmust be aware of the visually unpleasant possibilities attendant ontheir use.An even number of superstructure modules is often held togive rise to what is known as unresolved duality, which is akin tovisual instability in that such arrangements tend to lack composureand unity, as illustrated in Figure 4.17.14. In a twin-arched bridge,for instance, the eye will wobble from one centre-line to the other,so that a feeling of restlessness is produced.Another unhappy effect is produced when a central piercoincides with the highest point of a bridge superstructure, so thatthe deck seems to droop away from that point, as illustrated inFigures 4.17.15 and 4.17.16. The effect is not only of loss of unitybut is also similar to placing a column under the mid-point of anarch, which is self-supporting, and therefore associated withcontradiction of function. There is an evident need for a structureto look not only stable, but also reasonably logical if it is toplease the eye.
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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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Duplicate—re/tow paper—{Retaine
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CIVIL ENGINEERING MANUALVOLUME V RO
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Amendment No. V-l/92 (Jan.)CHAPTER
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4.4.2.5 Creep of concreteAmendment
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Amendment No. V-l/89 (Feb.)4.12.10
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Amendment No. V-l/89 (Feb.)4.15.6 R
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Amendment No. V-l/89 (Feb)4.17.1 Ae
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Amendment No. V-l/92 (Jan.)APPENDIC
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V.4.1Amendment No. V-l/89 (Feb.)CHA
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V.4.2Amendment No. V-l/91 (Jan.)4.2
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V.4.2.2Amendment No. V-l/91 (Jan.)4
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Amendments No. V-2/84 (March)TABLE
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V.4.2.3.3Amendment No. V-l/92 (Jan.
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Table 4.2.4a Drag Coefficient CD fo
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V.4.2.4Amendment No. V-l/92 (Jan.)4
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V.4.2.4.3.1Amendment No. V-l/92 (Ja
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GROUP2TYPE OF CONSTRUCTIONSTEEL DEC
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V.4Appendix 4.2.1 — p. 2(November
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V.4Appendix 4 . 2 . 2 : - p . 2Amen
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V.4r , Appendix 4 . 2 . 2 - p . 4 ,
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V.4Appendix 4.2.3 — p. 2Amendment
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V.4Appendix 4.2.3 - p. 4Amendment N
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V.4Appendix 4.2.4 - p. 2Amendment N
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V.4Appendix 4.2.4- p\ 4Amendment No
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V.4.2.6 (Cont'd)(Noveitiber / 1983)
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V.4.2.10Amendment No. V-l/91 . (Jan
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(1) HB vehicle within one notional
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V.4.2.10.2Amendment No. V-l/91 (Jan
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Amendment No. V-l/91 (Jan.)LoadedLe
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V.4.2.12.3(November, 1983)4.2.12.3
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7.4.1.2(November, 1983)Highway stru
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V.4.2.2Amendments ITo d V-3/854»2
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Amendments !To» V-3/85 (July)4« 2
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DIFFERENCEFROM MEAN VOIDTEMPERATURE
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V, 4*2*4*3(!fevember f 1983)4*2®4
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TABLE A 9 64.^.0SDBPACE TEMPERATURE
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4«2«6f 1983)Although the risk of
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4-2.7V.4.2.7(November, 1983)4.2.7.1
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7*4*2*8(Nbvember f 1983)Pedestrian
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4*2«12«3V*4»2*12*3(November, 198
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V.4Appendix 4«2«1 - p*(Bovember,
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V.4Appendix 4,2.2 - p.2(Kbvember, 1
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V.42, COLUMNS Appendix 4*2*2 - p*4(
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Appendix 4.2.5Amendment No* V-l/92
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V.4Appendix 4-3Amendments No* V-2/8
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TABLE 4.4.1CONDITIONS OF EXPOSURECO
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TABLE 4.4.2Characteristicstrength a
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4*4*2*4 Shrinkage(Ifevember, 1983)S
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3)oc;om•Hmm ajo mo mo(AXm mTIID o
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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
Page 340 and 341: 7.4.13.6.2 (Cont'd)(November, 1983)
Page 342 and 343: lPARTICLE ! SIZE mm//^7f""""1"Tl>oo
Page 344 and 345: 1»3 Overturning2» Piledv.4Appendi
Page 346 and 347: Y.4*14(November, 1983)4*14 HEADBOOM
Page 348 and 349: 4,14«3 fempjeqsat;Lop, fo r. verti
Page 350 and 351: 4.15 PARAPETSV.4.15(November, 1983)
Page 352 and 353: 4*15«4 BesignV.4«15*4(ifovember,
Page 354 and 355: V.4«15*5*5 (Cbnt'd)(November, 1983
Page 356 and 357: 4«15«6 Reinfproed i .£onoret e
Page 358 and 359: 4*15.12 Sight ,digtanoea7.4*15.12(N
Page 360 and 361: TABLESTRENGTH OF BKEMFDJRCED CONCRE
Page 362 and 363: TABLE 4«15«6DIMENSIONS FOR GBDUP
Page 364 and 365: •orL^BBranMaanaI,_1 'iAODININGEDF
Page 366 and 367: 15CLFOOTWAYTOP SHAPED TOCOMPLY WITH
Page 368 and 369: 7*4Appendix 4*15*2 - p«1(November,
Page 370 and 371: ¥.4Appendix 4«15*2 - p*34* Vehicl
Page 372 and 373: 4.16 STOKMWATER DRAINAGE7.4.16(Nove
Page 374 and 375: ?.4»l6«2*2(Cont*d)(November, 1983
Page 376 and 377: ¥.4*16*4(Jfovember* 1983)vf' yCity
Page 378 and 379: V.4.17.2Amendments No. V-2/85 (July
Page 380 and 381: Amendments No. V-2/85 ( July )FIGUR
Page 382 and 383: a,FIGURE 4,17.5DIMENSIONS GOVERNING
Page 386 and 387: Amendments No. V-2/85 (July)Texture
Page 388 and 389: Amtndmtnis No. V-2/85 ( July)GOOD®
Page 392 and 393: FIGURE 4.17.13 VISUAL INSTABILITY T
Page 394 and 395: Amendments No. V - 2 / 85 (July )SU
Page 396 and 397: ¥.4*19*4.7(November^ 983)4.7 Blanc
Page 398 and 399: 12* Clause 4*13*3V.4*19*12(November
Page 400 and 401: 17« Clause 4.15*6V*4*19*17(Kbvembe
Page 404 and 405: RHYTHMFIGURE 4.1Z17RHYMERHYTHM AND
Page 406 and 407: V. 4.17.12Amendments No. V-2/85 (Ju
Page 408 and 409: Amendments No. V-2/85 { July)FIGURE
Page 410 and 411: V.4Appendix 4.17.1 - p.lAmendments
Page 412 and 413: V.4Appendix 4.17.1 - p.3Amendments
Page 414 and 415: 4,18 OPERATIONAL CONSIDERATIONSV*4
Page 416 and 417: 4«18*3«2 Maintenance accommodatio
Page 418 and 419: v.5.1(July 77)CHAPTER 5MINOR WORKS(
Page 420 and 421: (July*??)5*5 PHEPARATION OF, MINOR
Page 422 and 423: Highways""""C ) ""DivisionCheck Lis
Page 424 and 425: Name of Soad sLocation :Sub j ect1*
Page 426 and 427: (July 77)6.1 ROAD RECORDS6*1.1 Proc
Page 428 and 429: NAME OF ROAD:—STATUSLOCATIONAPPRO
Page 430 and 431: V.6Appendix 3(July -??)Road Records
Page 432 and 433: V.7.2(July, 77)7.2 DESIGN PRINCIPLE
Page 434 and 435: ?*7«2,3(Cont f d)(July, 11}Because
Page 436 and 437: V*7.2.6(Cont*d)(July, 77)Suitable s
Page 438 and 439: 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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