|
|||||
|
|
| 钢结构抱柱梁的设计与应用研究 | |
| 引用本文： | 吉伯海,徐声亮,袁爱民,周超,郑宏. 钢结构抱柱梁的设计与应用研究[J]. 桥梁建设, 2011, 0(4) |
| 作者姓名： | 吉伯海 徐声亮 袁爱民 周超 郑宏 |
| 作者单位： | 1. 河海大学桥梁工程研究所,江苏南京,210098 2. 浙江省港航管理局,浙江杭州,310011 3. 湖州市港航管理局,浙江湖州,313000 |
| 基金项目： | 浙江省交通运输厅科技计划项目(2010H39) |
| 摘 要： | 针对目前在桥梁整体同步顶升改造中普遍使用的混凝土抱柱梁施工周期长、墩柱界面连接强度弱、环境不友好、适用范围受限等不足,提出一种新型钢结构抱柱梁。钢结构抱柱梁采用可预制拼装的分离式钢结构,通过设置剪力键与双向预应力提高墩梁界面的承载力,并在抱柱梁承受集中力区域及应力集中部位设置加劲肋。结合浙江省某航道桥的整体顶升改造,对钢结构抱柱梁的结构布置及受力性能进行分析,并与相应的混凝土抱柱梁进行对比。分析结果表明,钢结构抱柱梁各部分受力均满足规范要求,与混凝土抱柱梁相比,钢结构抱柱梁高宽比较小、墩梁接触界面连接力大、结构可循环使用、施工效率大大提高。 |
| 关 键 词： | 桥梁改建 整体同步顶升 抱柱梁 钢结构 设计 |
Research of Design and Application of Girdling-Column Steel Beam |
|
| JI Bo-hai,XU Sheng-liang,YUAN Ai-min,ZHOU Chao,ZHENG Hong. Research of Design and Application of Girdling-Column Steel Beam[J]. Bridge Construction, 2011, 0(4) | |
| Authors: | JI Bo-hai XU Sheng-liang YUAN Ai-min ZHOU Chao ZHENG Hong |
| Affiliation: | JI Bo-hai1,XU Sheng-liang1,YUAN Ai-min1,ZHOU Chao2,ZHENG Hong3(1.Institute of Bridge Engineering,Hohai University,Nanjing 210098,China,2.Administration of Ports and Navigation,Zhejiang Province,Hangzhou 310011,3.Administration of Ports and Navigation,Huzhou City,Huzhou 313000,China) |
| Abstract: | Seeing the deficiency that the construction time schedule of the girdling-column(pier column) concrete beam extensively used for the current bridge retrofitting of integral and synchronous jack-up is long,the strength of connection between the column and the beam is week,the utilization of the beam is environment-unfriendly and is limited as well,a new type of the girdling-column steel beam is brought forward.The steel beam is a separated steel structure that can be prefabricated and preassembled,the bearin... |
| Keywords: | bridge retrofitting integral and synchronous jack-up girdling-column beam steel structure design |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |