预应力索梁结构施工过程力学性能分析  

RESEARCH ON MECHANICAL BEHAVIOR FOR PRESTRESSED CABLE-GIRDER STRUCTURE CONSTRUCTION

作　　者：杜文学[1,2] 张令心[2] 韩雪[1] 

机构地区：[1]黑龙江科技大学建筑工程学院,哈尔滨150022 [2]中国地震局工程力学研究所,哈尔滨150080

出　　处：《钢结构》2014年第6期36-39,共4页Steel Construction

基　　金：黑龙江省教育厅科学技术研究项目(12513084)

摘　　要：基于能量原理对预应力索梁结构施工过程进行分析,研究其施工方案,同时结合SAP 2000有限元程序对某已建大跨预应力索梁屋盖施工过程的受力性能进行模拟,并将其模拟分析结果与整体设计计算结果对比,得出:施工过程中合理地控制索结构预拉力,保证拱梁、索准确就位是预应力索梁结构进入安全工作状态的前提;模拟分析结果与整体计算结果吻合较好。因此,该分析方法可以对预应力索梁结构施工过程的荷载效应进行准确预测和控制,为安全准确施工提供保证,同时为预应力索梁结构初期设计提供参考。Energy principle is used to analyze the construction of prestressed cable-girder composited structure. Both design analysis and constructed simulation are carried out by SAP 2000 program on a constructing long-span prestressed cable-girder roof structure whose simulated results are compared with the calculated ones of the overall design. The results show that prestress in cable is very important to control the accurate position. Tension control analysis before construction for cables could ensure both arc girder and other structural members undergo accurate deformation, which is accomplished completely by definite load step and prestressed control. The analysis method could offer reference to the initial structural design and constructed control of the prestressed cable-girder structure.

关 键 词：预应力索梁结构 施工过程 受力性能 模拟分析 

分 类 号：TU394[建筑科学—结构工程]