混凝土柱顶上钢斜梁拱的设计与施工问题

THE PROBLEMS OF DESIGN AND CONSTRUCTION OF STEEL INCLINED ARCH SUPPORTED ON CONCRETE COLUMNS

讨论了混凝土柱顶上钢斜梁拱结构的技术特点及在设计与施工方面存在的特殊问题:拱结构与梁结构的重大区别、拱脚推力释放及拱内力改变对屋面坡度的敏感性、拱脚水平位移对拱顶位移的影响、由拱结构转变成梁结构的可能性、拱脚适宜的构造形式、为克服拱脚推力释放应采用的施工措施等,可为钢结构设计与安装施工人员参考。

The technical characteristics and the problems of design and construction of steel inclined arch on concrete column are discussed. Important difference between arch and beam, sensitivity of thrust release and variability of arch moment affected by roof slope,displacement of arch apex affected by displacement of arch thrust, possibility of changing arch into beam, suitable details of arch thrust, necessary construction method to diminish release of thrust etc have been mentioned. It may be served as a reference of steel structure design and erection for technicians.