纳界河特大型桥(qiao)属于林织（新）线林歹南至织金段坪子(zi)上(shang)至大冲范围，清镇(zhen)市与??织金县交壤处的(de)大寨村的(de)纳界河上(shang)，该桥(qiao)当(dang)中(zhong)航空里(li)程为(wei)ZDK24+008.00。主桁为(wei)352m上(shang)承式钢桁拱，引桥(qiao)及拱上(shang)梁(liang)(liang)跨(kua)拟定为(wei)3×24简(jian)支梁(liang)(liang)+1×32简(jian)支梁(liang)(liang)+2×48T构+11×24.7钢混连(lian)接梁(liang)(liang)+2×48T构+7×32简(jian)支梁(liang)(liang)，总长度810.10m，。全(quan)桥(qiao)首选数据为(wei)Q370qE、Q345qE、Q345qD，全(quan)桥(qiao)总重约9000吨(dun)。

我(wo)公司(si)被(bei)任命为(wei)(wei)该桥(qiao)装备使用(yong)过程，该桥(qiao)拥有总跨(kua)高(gao)(gao)(gao)长(zhang)、功能分区(qu)(qu)合理(li)繁(fan)多、使用(yong)过程分值(zhi)大等苏州(zhou)特色。跨(kua)径让：主(zhu)(zhu)桥(qiao)现实(shi)跨(kua)径为(wei)(wei)L=352m，拱(gong)(gong)(gong)座本质(zhi)上(shang)(shang)完(wan)正放置于岸坡未变线(xian)内；矢跨(kua)比(bi)求矢高(gao)(gao)(gao)：主(zhu)(zhu)桥(qiao)为(wei)(wei)上(shang)(shang)承式提(ti)篮钢(gang)桁(heng)拱(gong)(gong)(gong)功能分区(qu)(qu)合理(li)，矢高(gao)(gao)(gao)64.5m，矢跨(kua)比(bi)1/5.46；拱(gong)(gong)(gong)轴间(jian)(jian)(jian)(jian)线(xian)在XOZ3d立(li)体感及竖向3d立(li)体感内为(wei)(wei)悬链线(xian)，拱(gong)(gong)(gong)轴常数m=1.5。主(zhu)(zhu)桥(qiao)为(wei)(wei)上(shang)(shang)承式提(ti)篮钢(gang)桁(heng)拱(gong)(gong)(gong)功能分区(qu)(qu)合理(li)，主(zhu)(zhu)桁(heng)为(wei)(wei)N型架，拱(gong)(gong)(gong)顶(ding)(ding)处弦杆(gan)外外立(li)面(mian)高(gao)(gao)(gao)清(qing)(qing)高(gao)(gao)(gao)清(qing)(qing)激(ji)(ji)光投(tou)影(ying)(ying)桁(heng)高(gao)(gao)(gao)8.0m，拱(gong)(gong)(gong)脚处弦杆(gan)外外立(li)面(mian)高(gao)(gao)(gao)清(qing)(qing)高(gao)(gao)(gao)清(qing)(q??ing)激(ji)(ji)光投(tou)影(ying)(ying)桁(heng)高(gao)(gao)(gao)13.0m，节(jie)间(jian)(jian)(jian)(jian)数量高(gao)(gao)(gao)清(qing)(qing)高(gao)(gao)(gao)清(qing)(qing)激(ji)(ji)光投(tou)影(ying)(ying)的(de)长(zhang)度8.2333m。拱(gong)(gong)(gong)顶(ding)(ding)处主(zhu)(zhu)桁(heng)间(jian)(jian)(jian)(jian)距8.0m，拱(gong)(gong)(gong)角处主(zhu)(zhu)桁(heng)间(jian)(jian)(jian)(jian)距27.0m，弦杆(gan)内倾斜8.37867°。弦杆(gan)横截面(mian)间(jian)(jian)(jian)(jian)至(zhi)拱(gong)(gong)(gong)角现实(shi)间(jian)(jian)(jian)(jian)的(de)竖向区(qu)(qu)间(jian)(jian)(jian)(jian)64.5m。

图1：纳界河高架桥工程现象

图2：纳界河高架桥地面上主课

图3：纳界河大桥全貌