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　　為??(wei)增??(zeng)強(qiáng)??(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(shí)??(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(yùn)??(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(duì)??(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(biāo)??(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)?。。