| 大跨径预应力混凝土连续梁桥墩顶现浇段分层浇筑 |
| |
| 引用本文： | 郭斌强. 大跨径预应力混凝土连续梁桥墩顶现浇段分层浇筑[J]. 科学技术与工程, 2012, 12(16): 4042-4046 |
| |
| 作者姓名： | 郭斌强 |
| |
| 作者单位： | 哈尔滨工业大学,哈尔滨,150090 |
| |
| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
| |
| 摘 要： | 利用有限元软件ANSYS对大跨径预应力混凝土连续梁桥墩顶现浇段建立了实体模型。通过对不同梁高不同分层浇筑方案的对比分析,提出了该类型桥梁墩顶现浇段合理分层浇筑高度。另外,利用桥梁专业软件MIDAS/CIVIL建立了对应的平面杆系模型,并将其与实体模型对比。选取部分关键截面,归纳出这种特殊结构运用梁单元计算分析的近似换算系数公式。最后,以黑龙江省依兰松花江公路大桥为例,验证了分层浇筑高度确定的可行性及所归纳换算系数公式的合理性。
|
| 关 键 词： | 桥梁工程 分层浇筑 有限单元法 连续梁桥 换算系数 |
| 收稿时间： | 2012-03-12 |
| 修稿时间： | 2012-03-12 |
Layered Pouring in Top-pier Section of Long-span PC Continuous Bridge |
| |
| guobinqiang. Layered Pouring in Top-pier Section of Long-span PC Continuous Bridge[J]. Science Technology and Engineering, 2012, 12(16): 4042-4046 |
| |
| Authors: | guobinqiang |
| |
| Affiliation: | (Harbin Institute of Technology,Harbin 150090,P.R.China) |
| |
| Abstract: | A solid model about top-pier section of long-span PC continuous bridge was established by finite element software ANSYS. According to the comparative analysis of different poring programs, the rational layered height was proposed. In addition, A plane frame model was established by MIDAS/CIVIL. Compared with two models, An approximate conversion factor formula was summed up. Finally, the reasonable of pouring-height determining and conversion factor was demonstrated by an example of Yilan Highway Bridge in Heilongjiang Province. |
| |
| Keywords: | bridge engineering layered pouring finite element method continuous bridge conversion factor |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《科学技术与工程》浏览原始摘要信息 |
|
点击此处可从《科学技术与工程》下载全文 |
|
