索拱结构布索方式研究与静力特性分析  

Study of the Cable Arrangements and Analysis of Static Behavior for Cable-arch Structure

作　　者：卢郁霖 郝志鹏[1] 毛明超 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《佳木斯大学学报（自然科学版）》2017年第2期184-188,共5页Journal of Jiamusi University：Natural Science Edition

摘　　要：通过研究纯拱在全跨均布荷载作用下的弯矩分配,探讨弦撑式索拱、弦张式索拱、车幅式索拱的布索方式。对比索拱结构与纯拱结构静力特性,包括变形对比,内力对比,拱脚推力对比,索拱结构均在一定程度优于纯拱结构。最后对比索拱结构与纯拱结构的经济性,将拉索用量换算计入用钢量,在相近刚度水平下,索拱结构与纯拱结构相比具有较好的经济性。By studying the bending moment distribution of pure arch under a full span load distribution, this paper investigated the cable arrangement of chord - supporting cable - arch structure, chord - tension cable - arch structure, and spoke cable - arch structure. We also compared the static characteristics of cable - arch structure and pure arch structure, including deformation contrast, internal forces contrast, and arch thrust contrast, which proved that cable - arch structure surpasses pure - arch structure in a certain degree. Finally, we compared the economic efficiency of cable -arch structure and pure arch structure. Converting the amount of cable used into the amount of steel, under a similar level of stiffness, cable arch structure proves to be more economical efficient in contrast with pure arch structure.

关 键 词：布索方式 弦撑式 张弦式 轮幅式 静力分析 

分 类 号：TU393.3[建筑科学—结构工程]