大跨径预应力混凝土连续刚构桥的现状和发展趋势

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2020-03-03

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13120001ChinaJournalofHighwayandTransportVol113No11Jan.2000:100127372(2000)0120031207:1999205217:(19692),,,(,100101):,;,:;;:U448123:AThestatusquoanddevelopingtrendsoflarge-spanprestressedconcretebridgeswithcontinuousrigidframestructureZHOUJun2sheng,LOUZhuang2hong(BeijingJiandaRoad&BridgeConsultingCompany,Beijing100101,China)Abstract:Adoptingthestructureofcontinuousrigidframeinconstructionoflarge2spanbeambridgeisaninevitabledevelopingtrend.Themeasuresfordecreasingtemperaturestressandpro2tectingpiersfromvesselimpactingaredescribed.Thedatafromsomeofdomesticandoverseaslarge2spanbeambridgeswithcontinuousrigidframestructurearegivenandanalyzed.Thesuper2struture2lighteningandnon2drop2constructionforclosing2upofsidespanarediscussedinthepa2per.Keywords:continuousrigidfram;pierwithdoublewall;superstructure2lightening1,,T,,,,,,;,,,,,T,,,,12221121111,;,,,,,,,,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1(L190m)mmmcm1RaftSundet199986+202+298+1251415315120.6185.110137282612030401248.3224mC60,37mC65,R=3000m2(Gateway)1985145+260+1450155815168512116.61502119312253018065751144.4(16m),,3Schottwien198925044Doutor19902503,,Oporto5Houston1982114+22816+114014991416416115.7149.7186Mooney1985130+220+1300159112154125117.6151.81213630138551159.47Orwell1984190124115.8147.51288m,2(L120m)mmmcm11997150+270+1500155614185118.2154157253213040601207.7,,R=7000m21999137+3250+137015481318413118.1158.1157252815040701166.7,1024m3146+3250+146015841317412118.2159.51115515253215040601166.7,1042m4199516215+3245+162.50166313411118.8159.8191610253213550801181.51060m51997140+240+1400158313154117.816022111525321205080120061997140+240+14001583316166.715.36832120406012007140+240+55150158313154117.816025135515m8122+221+12201552113118.6173.717118253211040601209,116591998110+190+110015799153120163.317175915283210035551190,11510198865+125+180+1100.6110.5210311816015114828321205070115011199912316+170+1231601727121996100+168+100015951015415116137.3121677512070901140131993105+4160+1050165683120153.3171592525100406511601490+3160+900156383120153.31791519948911+155+8911015759312117.2148.41815916199185+140+85+42016078218117.515014826308040601175,1315m17199978+140+78+42+4201557715215118.715615125728328550651164.7,R=900m18198988+135+88016528315116.9138.616.519199175+135+750155671521511815416.5820199790+130+90016927215118.615213126162525100406011302119987218+128+721801569818414114.5129.181161150409040701142.2,,22199370+2125+7001560618215118.415013137287040541178.6,1182380+125+8001640618215118.415013157328040551156.324199375+7120+7501625615216118.5146.2181349252580405511504,,2566+120+660155062151201482111283260401200,,,,(1)120m,,232000©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.22816mHouston,,1cm2(Gateway)cm21112,,,16215m+3245m+16215m,1060m,1200m,,75m+7120m+75m,911m,8,4,;2,,,212,,,,:21211,Y,,,,,,,,21212,,,,21213,25m,,55m,,,,,,,,,,32200m,1985(Gateway)(2),145m+260m+145m,124715m,,215m,015m,015m,1m;,512m,15168m,21193m,12m;0125m,013m,118,01650175m,C240(50#)331,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(16m),,,1998RaftSundet(3),,4,86m+202m+298m+125m,711mR=3000m:311C60C65();298m,224m,3RaftSundetmm312,315m,1415m,1419m1013m,7m28cm,L442cm,110cm26cm,120cm,160cm3040cm,55cm,(Gateway),(4)65m+125m+180m+110m,,212m,3m,10m15114m,8m28cm,32cm,120cm,5070cm,,(5),R=7000m,150m+270m+150m,19974,RatfSundet,35m,9m,,3m,50cm,5m,1418m15m,7m25cm,32cm,130cm4060cm,C55,(Gateway),,,,,,,300m441112,01501692,015Hous2ton,016,01550158432000©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.4cm5(cm;m)531,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,01540156,,,,,41212,2119m(),,,,,41312,1151712016,118,1201461218511,154160,17317,RaftSundet,,,,1851112016,,2,L4L8,115,,120,118115118,4144141112,,28cm25cm4141212,32cm,,2825cm,,,,1200,,120717,,RaftSundet,,120cm,124813,,4141312,40cm,35cm,50cm,5580cm,4060cm,6575cmRaftSundet,3040cm,,,,,415,,33mkgm-2kgm-2m3m-21198818012965191121219981909118601301963199727017710711293:(1)10m,,21%,29%,8%,,,20%,,(2)50%,615%,416,,,,(6):41611,,,,,,,41612,,632000©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(6)6,01540156,,,,,,,106m(59m)120m(66m),,,41613,140m,85m42m,(942m)+(42+1315m),,,,1315m,85m+140m+85m+42m,,,16m,,,,(2)5511,280m,318m(7),,300m7cm512,,,,,513,,,,514,,,,:[1]1[J]1,1994,(1)1[2],1[J]1,1998,(6)(7)1731,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.