作　　者： ; ; ; ; ;

机构地区： 华南理工大学建筑学院

出　　处： 《华南理工大学学报（自然科学版）》 2005年第11期72-78,共7页

摘　　要： 提出了大跨度拱式转换结构的概念.该新型结构由钢管混凝土拱、钢吊杆和钢梁组成,具有受力性能好、充分利用材料性能、满足建筑使用功能等优点.通过2个模型试件的试验,研究了该转换结构的力学性能.试验结果表明,采用该结构可实现多高层建筑的结构转换并获得建筑上的大空间和大跨度,具有优越的承载能力和刚度.其组成构件的受力特点是:拱为一全截面受压的压弯构件,楼面横梁为既平衡拱水平推力又承担楼面荷载的拉弯构件,竖向吊杆为承受自下而上增大的轴向拉力的拉弯构件. A new type of transfer structure--long-span arch-transfer structure is presented. This structure consists of a concrete-filled steel tubular arch, several steel hanger rods and steel beams, and is characterized by having excellent mechanical properties, making full use of the strength of materials and meeting the requirements of architectural functions. On the basis of the experiments of two specimens with an arch-transfer structure, the mechanical properties of the structure are then analyzed. It is found that the arch-transfer structure can be applied to the creation of extremely long span and big space owning to its excellent mechanical properties in load-carrying and stiffness. As far as the mechanical characteristics of the component members of the structure are concerned, the arch is an axial compression ＆ bending member whose whole section is subjected to compression stresses, the floor beams are axial tension ＆ bending members subjected to both the horizontal force balancing the thrust force of arch and the floor loads, and the hanger rods are also axial tension ＆ bending members subjected to the axial tension force increasing from the bottom to the top.

关 键 词： 大跨度结构 拱式转换结构 钢管混凝土 拱 力学性能

领　　域： [建筑科学] [建筑科学]