CAJ | 학술논문

京杭运河宿迁市引湖特大桥共计376片装配式预应力混凝土连续箱梁，箱梁长30 m，高1.6 m （腹板中心高度），底板宽1 m，顶板宽中梁为2.4 m、边梁为2.65 m，腹板厚25～18 cm，底板厚25～18 cm，顶板厚18 cm。梁顶板横向坡度为2%，采用多箱梁预制，简支安装，现浇连续接头的先简支后连续的结构体系。结合该桥的施工实践，对预应力砼箱梁预制时总体施工组织设计的优化、施工工艺要点等进行阐述，指导该工程的施工。
경항운하숙천시인호특대교공계376편장배식예응력혼응토련속상량，상량장30 m，고1.6 m （복판중심고도），저판관1 m，정판관중량위2.4 m、변량위2.65 m，복판후25～18 cm，저판후25～18 cm，정판후18 cm。량정판횡향파도위2%，채용다상량예제，간지안장，현요련속접두적선간지후련속적결구체계。결합해교적시공실천，대예응력동상량예제시총체시공조직설계적우화、시공공예요점등진행천술，지도해공정적시공。
Yinhu lake grand bridge of Suqian city of Beijing-Hangzhou Canal has a total of 376 pieces of prefabricated pre-stressed concrete continuous box. Length of box girder is 30 m, 1.6 m high (web center height), bottom width 1 m, width of roof centre is 2.65 m, 2.4 m, side beam web thickness 25~18 cm, base plate thickness 25~18 cm, roof 18 cm thick. Beam transverse slope roof is 2%, which are used structure of the system of prefabricated box girder, simply supported installation, cast-in-place continuous joint after simply supported continuous. In this paper, based on the practical construction of the bridge, the author expounded the pre-stressed optimization and main points of construction technology of general construction organization design of pre-stressed box beam prefabrication.