| 主管内填混凝土矩形和圆形钢管桁架受弯性能对比试验研究 |
| |
| 引用本文： | 刘永健,刘君平,张俊光.主管内填混凝土矩形和圆形钢管桁架受弯性能对比试验研究[J].建筑结构学报,2010,31(4):86-93. |
| |
| 作者姓名： | 刘永健 刘君平 张俊光 |
| |
| 作者单位： | 长安大学桥梁与隧道陕西省重点实验室;福州大学土木工程学院; |
| |
| 基金项目： | 教育部新世纪优秀人才支持计划项目(NCET-06-0855);;国家西部交通建设科技项目(2006318812112);;交通部应用基础研究项目(2006319812130) |
| |
| 摘 要： | 为研究主管内填混凝土对矩形和圆形钢管桁架结构受弯性能的影响及两者区别,进行了矩形和圆形钢管桁架空管、仅受压主管内填混凝土和拉压主管均内填混凝土三种类型桁架的对比试验研究。试验结果表明:矩形截面桁架均发生节点失效,空管桁架为受压主管侧壁鼓曲破坏,仅受压主管内填混凝土和拉压主管均内填混凝土桁架发生受拉主管顶板的冲剪破坏;圆形截面空管桁架和仅受压主管内填混凝土桁架发生空管节点处的主管侧壁鼓曲破坏,拉压主管均内填混凝土桁架为受拉支管受拉断裂破坏。主管内填混凝土有助于提高主管轴向刚度,提高节点强度和刚度及整体承载力,节点承载力按规范计算结果偏于安全,桁架整体变形计算需考虑节点变形的影响。两种截面空管桁架的承载力及变形差异不明显,主管内填混凝土后,圆形截面桁架的整体和节点承载力比相应矩形截面桁架承载力要高,变形能力更好,且节点变形比例更小。
|
| 关 键 词： | 桁架 静力试验 矩形钢管 受弯性能 填充混凝土 圆形钢管 |
| 收稿时间： | 2010-08-05 |
| 修稿时间： | 2010-08-05 |
Experimental research on RHS and CHS truss with concrete filled chord |
| |
| LIU Yongjian,LIU Junping,ZHANG Junguang.Experimental research on RHS and CHS truss with concrete filled chord[J].Journal of Building Structures,2010,31(4):86-93. |
| |
| Authors: | LIU Yongjian LIU Junping ZHANG Junguang |
| |
| Affiliation: | 1.Key Laboratory for Bridge and Tunnel of Shaanxi Province/a>;Chang'an University/a>;Xi'an 710064/a>;China/a>;2.College of Civil Engineering/a>;Fuzhou University/a>;Fuzhou 350108/a>;China |
| |
| Abstract: | The paper describes a study on the effect of concrete filled chord in rectangular hollow section(RHS) and circular hollow section(CHS) steel tube truss.Tests on trusses made with RHS and CHS steel tube with three types were carried out,with the first type specimens being RHS and CHS trusses,the second type specimens being RHS and CHS trusses with concrete filled in the compressive chord,and the third type specimens being RHS and CHS trusses with concrete filled in both the compressive and the tension chords... |
| |
| Keywords: | truss rectangular steel tube circular steel tube concrete-inside static test bending |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《建筑结构学报》浏览原始摘要信息 |
|
点击此处可从《建筑结构学报》下载全文 |
