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新沂县水利局在骆青河新开段上采用悬索无支架吊装兴建一座五十米净跨的双曲拱桥。拱肋的长度五十四米,分三节一次预制,两端节长度各为十九点五米,重量八吨;中节长度为十五米,重量六吨。分节接头处用十毫米厚钢板包头进行平接。为了在安装过程中拼接方便,两接头钢板上下均伸出梁外十厘米,伸出部分留有孔,吊装时用铁丝临时对接,以后再加帮板焊接。为了吊装方便和尽量缩小行线的距离,预制构件放在桥的一头,紧靠桥台。预制拱肋的方向与桥的方向垂直,拱肋中心对桥的中心。悬索无支架吊装设备是利用县原有吊装设备(台令)进行改制而成,主要由立杆和
Xinyi County Water Conservancy Bureau in Luo Qinghe opened a new section with a cable-free lifting construction of a 50-meter net span of double-curved arch bridge. Arch rib length of 54 meters, three prefabricated section, the length of the two ends of each 19.5 meters, weighing eight tons; section length of 15 meters, weighing six tons. Section joints with ten millimeters thick steel flat header. In order to facilitate the splicing during the installation process, the upper and lower ends of the two joint steel plates extend beyond the beam by ten centimeters, leaving holes for the protruding parts. When hoisting, the steel bars are temporarily connected, and the brazing welding is performed later. In order to facilitate lifting and minimize the distance between the lines, prefabricated components on the bridge at one end, abut abutment. Prefabricated arch rib direction and the direction perpendicular to the center of the arch rib to the bridge. Suspension without support lifting equipment is the use of the original lifting equipment (Taiwan order) made from the restructuring, mainly by the pole and