SRC截面劲性骨架系杆拱桥初探  

Discussion on the tied arch bridge of SRC cross section stiff skeleton

作　　者：罗实[1] 王微嘉[1] 毛亮[1] 

机构地区：[1]中铁二院成都勘察设计研究院有限责任公司,四川成都610081

出　　处：《山西建筑》2016年第13期179-180,共2页Shanxi Architecture

摘　　要：结合梅溪河特大桥工程实例,研究了无支架法施工劲性骨架系杆拱桥的可行性,通过计算骨架、拱肋的变形及应力状态,分析了系杆拱桥的结构受力情况,指出对拱肋进行配重和设置少量预应力钢束,可消除混凝土收缩徐变对结构产生的不利影响。Combining with the Meixi river extra-large bridge engineering as an example,this paper researched the feasibility of non-support method construction of stiff skeleton tied arch bridge,through the calculation of skeleton,arch rib deformation and stress state,analyzed the structure stress situation of tied arch bridge,pointed out that made additional weight to arch rib and set up small amount of pre-stressed steel beam could eliminate the adverse influence of concrete shrinkage and creep to structure.

关 键 词：SRC梁 劲性骨架 系杆拱桥 应力 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]