交通标志结构设计的理论与方法

Vol114No1319979JOURNALOFHIGHWAYANDTRANSPORTATIONRESEARCHANDDEVELOPMENTX(100088),,TheTheoryandMethodofTrafficSignStructureDesignLiuHuixue(ResearchInstituteofHighwayBeijing)AbstractTheprincipleandtheoryareintroducedinthispaperinarelativelysys2tematicandcomprehensiveway.Methodsareputforwardaboutthechoiceofsignstucturetypeandtherationalgroupingofsignswiththesametype.Atlast,thepaperofferssomeproposalsfortheoptimizationdesignoftrafficsignstructures.KeywordsTrafficsignStructuredesignOptimizationdesign0,,,,,,,,,,,,,,,13:11,;X1996210217:,1967,,,121,,,;,,,212,Wnm250mm;Hn=18002500mmHn=5000(5500)mm31,,33,Hn=5000(5500)mm221111,21,31,;,4151(3m),212,,,11,,C0(RGd+RQd)fd(1),C0,,110;RGd6319973()Gd,Gd=CGG;CG(),,CG=112,,CG=110(,CG=019);G;RQd()Qd,Qd=CQQ;CQ(),,114;Q;fd,21,,v=vG+vQ[v](2),v;vG();vQ();[v]31,,110,2132131111Fwb=C0CQ[(12QCV2)ni=1(WbiHbi)]ö1000(3),Fwb,kN;C0CQ212;Q,112258Ns2m-4;C,C=112;V,mös,10m3010min,V20mös;n;Wbii;Hbii421()Fwp=C0CQ[(12QCV2)(WpHpn)]ö1000(4),Fwp(),kN;C,C=018,C=114,C=113;n;Wp();Hpn(),;21312()11,,,,(),21,,(),,73,,(Qw),(QG),,,,,,31,4Fw=Fwb+Fwp+Fwhpnbeam(5)G=C0CG[nwi=1(WbiHbiTbiubi)+Hhpnbeamuh+Hpup](6)Mwmax=Fwb[Hp-(nhi=1Hbi)ö2]+FwpHpö2(7)()Mtmax=Fwb[Hhp-(nwi=1Wbi)ö2]+Fwhp[Hhp-(nwi=1Wbi)]ö2(8)Mgmax=C0CG{nwi=1[WbiHbiTbiubi(Hhp-Wbiö2)]+Hhpuh(Hhpö2)nbeam}(9)(59),nbeam;nw;ubii,kNöm3;uhup,kNöm;nh,,,,,,,,,,,,:,(),,,Rw{=B-ww{I-w(10)S=L8D-M-wSq-wD(11),R-w,MPa;B-w,,kNm2;W{,W{=w-Qsg,w,m2,Q=8dsD,sg=s0dsD;I-w,I-w=w{2dF,m6;S,MPa;L,L=Mtmax;82,m2;D,m;M-w,M-w8319973=dB-wdz,kNm;Sq-w=S-w-18S-wdw,S-w=s0w{dF,Z,Z=0,ZH=C1+C2Z+C3sh(KZ)+C4ch(KZ)(12),C1C2C3C4H=C2+K[C3ch(KZ)+C4sh(KZ)](13)B-w=-EI-wLH=-GIk[C3sh(KZ)+C4ch(KZ)](14)L=GIkH-EI-wLHÊ=GIkC2(15)(1415),Ik=82dsD;L=1-Ikh2df;(1215)K=GIkEI-wLB-w0=0;HHp=0;HHp=0;L=L0(Mtmax);(1215),C4=0;C2=L0GIk;C3=-L0KGIkch(KHp);C1=-C2H-C3sh(KHp)-C4ch(KHp)(14)B-w=L0sh(KZ)Kch(KHp),M-w=dB-wdz=L0ch(KZ)ch(KHp)(10)(11),41,3,,;,:,5(a)(b),(a)(b)5,,21313()93,,,,,,,,,,[vHp],[vHp]110011000,[vHp]11001150,,,TH,21314,11()(),NmaxFNbt,Nmax;Nbt21,,NvNbv2+NmaxNbt2F1(16)NvFNbc(17),Nv;Nbv;Nbc31,(16)(17),Nv2131511,,,21,3m,,;,;,31(1),0419973,,(1ö4),(2),,,(3)111113(4)1121133,,km812,,,,11,(),,;,(),;:,,;,,;,;,,,,,,21,,,,,,,,,35,10,113,:141S(m2)n()161003025176203313630421992452142562120307117330811138390164601001627(1),$=(Smax-Smin)=(6100-0162)ö3=1179,,:6100,4121,2142,,,Cost1(2)1,2n=30+20++7=319,319ö3=106,14,104;58,148;910,67,Cost2(3),,31001150,610031001150,Cost3,,31,,,,4,;,,,;,,,;,,,,;,()(),,,,,1GB5768-86112JTJ021-891131()1,199141TSCAD1,1996(8)511,19866[],11,19812419973