考虑弯曲刚度预应力索梁结构力学分析  

PESEARCH ON PRE-STRESSED CABLE-STAYED BEAM STRUCTURE CONSIDED OF BENDING RIGID

作　　者：杜文学[1] 张令心[2] 韩雪[1] 胡明祎[2] 

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：《低温建筑技术》2013年第12期44-46,共3页Low Temperature Architecture Technology

基　　金：黑龙江省教育厅科学技术研究项目(12513084)

摘　　要：分析了索梁结构中不同种类索单元模式应用中的优缺点,在两节点悬链线索单元的基本假定和分析的基础上,考虑压弯变形的影响,提出改进的悬链线索单元—三节点弯曲索单元,并应用迭代法对其进行求解。通过算例分析表明,改进的三节点弯曲索单元考虑了弯曲变形的影响,对跨度、自重较大的悬索体系在承受反向荷载(风吸力等)时,准确的分析其空间受力性能具有一定的应用价值。The advantage and disadvantage of the different cable element models in the cable-stayed beam structure are analyzed,according to the basic assumption of the two-node cable element and considering compression bending,the three-node bending cable element that is improved centenary cable element model is proposed and iterative method is applied for calculating the cable beam structure. By the analysis of the example,it showed that the three-node bending cable element can accurate analysis the spatial bearing behavior,when the large span and dead weight cable-stayed beam structure endured the reverse load.

关 键 词：索梁结构 悬链线索单元 弯曲变形 

分 类 号：TU311.4[建筑科学—结构工程]