294(87)19991225:(),,:DesignandConstructionofShenzhenYanheRdViaductChenJianxia/XueXizhiAbstract:Introducedinthisarticlearethestructuraldesign,selectionofthebridgeformandtheconstructionworkmanshipoftheprestressedelementsthereof.KeyWords:prestressedcontinuousboxbeam;design;construction1(),(1),1(:m)1500,2,,,,(1.5m,1.3m)(2),(OVM15-9,OVM15-9P,2.2m,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.302(:cm)0(21.521.9m),(OVM15-7,BM)16,10.9m,119.92m785,,12.4m,106.23m100m7,75m,(OVM15-7,OVM15-7P),7,,,33.1,,,2m,1m,,,,3.2,,,,,,,,2m,,,,1m1m,,0.6m()6%(),1.2m,100cm100cm,0.6m,,,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.31,,3.3:00BM,OVM178,,,66707580mm0.71m()1.42m(),50mm,178,100m,7,,,,,:P=kSQQ=P/SDk;SD;SQL=PLAyEg(cm)L(mm);M(mm2);Eg(N/mm2);P(N)P=P[1-e-(KL+)]KL+P(N);(rad);Km;,()19991125,3012530,106:(1),,(2),(3),(4)(5)(6),,,,1999102529,,,,,,,()©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.