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　　為??(wei)增??(zeng)強??(qiang)長??(chang)江??(jiang)干??(gan)線??(xian)過??(guo)江??(jiang)能??(neng)力??(li)??，這??(zhe)座??(zuo)大??(da)橋??(qiao)實??(shi)現(xiàn)??(xian)了?(le)“高?(gao)速??(su)公??(gong)路??(lu)、城??(cheng)際??(ji)鐵??(tie)路??(lu)、貨??(huo)運??(yun)鐵??(tie)路??(lu)”合??(he)并??(bing)過??(guo)江??(jiang)??。??“公?(gong)鐵??(tie)合??(he)建??(jian)??，需??(xu)滿??(man)足??(zu)高??(gao)鐵??(tie)行??(xing)車??(che)的??(de)安??(an)全??(quan)與??(yu)舒??(shu)適??(shi)性??(xing)??，對??(dui)橋??(qiao)梁??(liang)豎??(shu)向??(xiang)剛??(gang)度??(du)、梁??(liang)端??(duan)縱??(zong)向??(xiang)位??(wei)移??(yi)等??(deng)指??(zhi)標??(biao)提??(ti)出??(chu)很??(hen)高?(gao)要??(yao)求??(qiu)???！敝??(zhong)鐵??(tie)大??(da)橋??(qiao)院??(yuan)總?(zong)工??(gong)程??(cheng)師??(shi)肖??(xiao)海??(hai)珠??(zhu)說??(shuo)???！　≡??(zen)么??(me)辦?(ban)？??G3銅??(tong)陵??(ling)長??(chang)江??(jiang)公??(gong)鐵??(tie)大??(da)橋??(qiao)在??(zai)設??(she)計??(ji)中??(zhong)??，將??(jiang)斜??(xie)拉??(la)橋??(qiao)和??(he)懸??(xuan)索??(suo)橋??(qiao)兩??(liang)種??(zhong)橋??(qiao)型??(xing)有?(you)機??(ji)結??(jie)合??(he)??，既??(ji)保??(bao)留??(liu)了??(le)斜??(xie)拉??(la)橋??(qiao)剛?(gang)度??(du)大??(da)的?(de)優(yōu)?(you)勢??(shi)??，又?(you)利?(li)用??(yong)了??(le)懸??(xuan)索??(suo)橋??(qiao)跨??(kua)越??(yue)能??(neng)力??(li)強??(qiang)的??(de)特??(te)點??(dian)??。??同??(tong)時??(shi)??，通??(tong)過??(guo)采??(cai)用??(yong)交??(jiao)叉??(cha)合?(he)龍??(long)方??(fang)案??(an)??，節(jié)??(jie)省??(sheng)3到??(dao)6個??(ge)月??(yue)工??(gong)期??(qi)??，既??(ji)實??(shi)現(xiàn)??(xian)了?(le)技??(ji)術??(shu)與??(yu)工??(gong)期??(qi)的??(de)雙??(shuang)重??(zhong)優(yōu)??(you)化??(hua)??，也??(ye)成??(cheng)就??(jiu)了??(le)世??(shi)界??(jie)首??(shou)座??(zuo)雙??(shuang)層??(ceng)斜?(xie)拉??(la)—懸??(xuan)索??(suo)協(xié)??(xie)作??(zuo)體??(ti)系??(xi)大??(da)橋??(qiao)??。。