纳界河超大(da)桥(qiao)(qiao)是在(zai)林织（新）线林歹南(nan)至织金段坪(ping)子上至大(da)冲之间，清镇市与织金县交壤(rang)处(chu)的大(da)寨(zha??i)村(cun)的纳界河上，该桥(qiao)(qiao)前(qian)面(mian)里数(shu)为ZDK24+008.00。主桁为352m上承式钢桁拱，引桥(qiao)(qiao)及(ji)拱上梁(liang)跨安(an)装为3×24简支(zhi)梁(liang)+1×32简支(zhi)梁(liang)+2×48T构+11×24.7钢混聯系(xi)梁(liang)+2×48T构+7×32简支(zhi)梁(liang)，长(zhang)约(yue)810.10m，。全桥(qiao)(qiao)前(qian)提的资料为Q370qE、Q345qE、Q345qD，全桥(qiao)(qiao)总重约(yue)9000吨。

我(wo)厂(chang)家(jia)担(dan)负该(gai)桥(qiao)(qiao)(qiao)安全(quan)装(zhuang)置工程(cheng)铺设，该(gai)桥(qiao)(qiao)(qiao)拥有(you)总夸度(du)长(zhang)、方式 复(fu)杂化、工程(cheng)铺设一(yi)定(ding)的难(nan)度(du)大等少(shao)数民(min)族(zu)特(te)色(se)。跨径(jing)让(rang)：主桥(qiao)(qiao)(qiao)合理(li)跨径(jing)为(wei)L=352m，拱(gong)(gong)(gong)座其实(shi)全(quan)版(ban)放在岸坡(po)发生变化线(xian)内；矢(shi)跨还(hai)有(you)矢(shi)高(gao)(gao)：主桥(qiao)(qiao)(qiao)为(wei)上(shang)承(cheng)式提篮钢桁(heng)(heng)(heng)拱(gong)(gong)(gong)方式 ，矢(shi)高(gao)(gao)64.5m，矢(shi)跨比1/5.46；拱(gong)(gong)(gong)轴(zhou)里(li)面(mian)(mian)线(xian)在XOZ制做及竖向制做内为(wei)悬(xuan)链线(xian)，拱(gong)(gong)(gong)轴(zhou)指数m=1.5。主桥(qiao)(qiao)(qiao)为(wei)上(shang)承(cheng)式提篮钢桁(heng)(heng)(heng)拱(gong)(gong)(gong)方式 ，主桁(heng)(heng)(he??ng)为(wei)N型架，拱(gong)(gong)(gong)顶处弦杆(gan)平(ping)面(mian)(mian)投射桁(heng)(heng)(heng)高(gao)(gao)8.0m，拱(gong)(gong)(gong)脚(jiao)处弦杆(gan)平(ping)面(mian)(mian)投射桁(heng)(heng)(heng)高(gao)(gao)13.0m，节(jie)间(jian)系(xi)数投射段长(zhang)度(du)8.2333m。拱(gong)(gong)(gong)顶处主桁(heng)(heng)(heng)里(li)面(mian)(mian)距8.0m，拱(gong)(gong)(gong)角处主桁(heng)(heng)(heng)里(li)面(mian)(mian)距27.0m，弦杆(gan)内坡(po)度(du)8.37867°。弦杆(gan)载面(mian)(mian)里(li)面(mian)(mian)至拱(gong)(gong)(gong)角合理(li)里(li)面(mian)(mian)的竖向时间(jian)64.5m。

图1：纳界河高架桥装修建筑工地报道

图2：纳界河立交桥水泥地面完课

图3：纳界河大桥全貌