CAJ | 학술논문

广西贵港市西南大桥主桥为（46＋88＋280＋88＋46） m双塔双索面预应力混凝土边主梁斜拉桥。主梁采用等高度带悬臂的矩形混凝土边主梁与“工”字形钢横梁相结合的形式，整幅桥面宽36．5m，设双向2．0％横坡。桥塔采用“鱼”状流线弧形框架钢筋混凝土结构，塔柱高102．5 m，采用外侧为“D”形圆弧段的箱形截面。桥塔设上、下横梁，均采用预应力混凝土单箱单室结构。全桥共设136根斜拉索，斜拉索采用φs 15．2 m m镀锌钢绞线索，空间双索面扇形布置。桥塔墩采用分离式基础，上、下游分离式基础中心距34．7 m ，其下各设9根φ2．5 m钻孔桩。承台为正方形钢筋混凝土结构。4号墩顶面设一圆端形塔座。
엄서귀항시서남대교주교위（46＋88＋280＋88＋46） m쌍탑쌍색면예응력혼응토변주량사랍교。주량채용등고도대현비적구형혼응토변주량여“공”자형강횡량상결합적형식，정폭교면관36．5m，설쌍향2．0％횡파。교탑채용“어”상류선호형광가강근혼응토결구，탑주고102．5 m，채용외측위“D”형원호단적상형절면。교탑설상、하횡량，균채용예응력혼응토단상단실결구。전교공설136근사랍색，사랍색채용φs 15．2 m m도자강교선색，공간쌍색면선형포치。교탑돈채용분리식기출，상、하유분리식기출중심거34．7 m ，기하각설9근φ2．5 m찬공장。승태위정방형강근혼응토결구。4호돈정면설일원단형탑좌。
The main bridge of the Xi′nan Bridge in Guigang City ,Guangxi is a prestressed concrete edge main girders cable‐stayed bridge with double pylons ,double cable planes and with span arrangement (46+88+280+88+46) m .T he main girders of the bridge are of the structural type combining the rectangular concrete edge main girders having constant depth and cantilevers with the I‐shape steel cross beams .The width of the whole bridge deck is 36 .5 m and the deck is provided with dual 2 .0% transverse slopes .A pylon of the bridge is the“fish”‐shape streamlined arc frame reinforced concrete structure that is 102 .5 m in height and the outer side of the pylon is of the“D”‐shape round arc box section .The upper and lower cross beams of the pylon are all the prestressed concrete single‐cell single‐box structures .There are totally 136 stay cables arranged for the whole bridge .The stay cables are the φs 15 .2 mm galvanized steel wire strand cables and are arranged in fan shape and spatial double cable planes .The pylon pier is supported on the sep‐arated foundations .T he center‐to‐center distance of the foundations on the upstream and dow n‐stream sides is 34 .7 m and in each foundation ,9 nos .of φ2 .5 m bored piles are arranged .T he pile caps of the foundations are the square reinforced concrete structures and at the top of Pier No .4 , a round‐end pylon base is arranged .