| 宁溧路改造工程桥梁拼接关键技术研究 |
| |
| 引用本文： | 袁晓燕,金恩伟.宁溧路改造工程桥梁拼接关键技术研究[J].交通标准化,2011(10):57-59. |
| |
| 作者姓名： | 袁晓燕 金恩伟 |
| |
| 作者单位： | 1. 东南大学建筑设计研究院交通分院,江苏,南京,210018
2. 南京市规划设计研究院有限责任公司,江苏,南京,210005 |
| |
| 摘 要： | 宁溧路改造工程拼接桥梁设计中,采用先落架后浇注接缝混凝土、快凝早强混凝土技术、特殊的微膨胀混凝土技术、在接缝混凝土中掺入一定数量聚乙烯醇纤维等措施有效防止新、旧桥接缝混凝土产生裂缝;采用滚轮压槽技术、提高粗骨料的强度及调整粗、细集料含量以提高混凝土耐久及抗滑性能等措施解决新增纵向伸缩缝的防滑、防裂问题。
|
| 关 键 词： | 桥梁拼接 裂缝 纵向缝防滑 防裂 |
Key Bridge Splicing Technique in Nanjing-Lishui Highway Rebuilding Project |
| |
| YUAN Xiao-yan,JIN En-wei.Key Bridge Splicing Technique in Nanjing-Lishui Highway Rebuilding Project[J].Communications Standardization,2011(10):57-59. |
| |
| Authors: | YUAN Xiao-yan JIN En-wei |
| |
| Institution: | YUAN Xiao-yan1,JIN En-wei2(1.Architectural Design & Research Institute Traffic Branch,Southeast University,Nanjing 210018,China,2.Nanjing Academy of Urban Planning & Design Co.,LTD,Nanjing 210005,China) |
| |
| Abstract: | In course of bridge splicing design of Nanjing-Lishui Expressway improvement project,in order to avoid cracks in the old and new concrete bridge joints,a series of measures such as casting concrete after backout bracket,quick coagulation and early strength concrete technique,special slight expansion concrete technique,incorporation a certain polyvinyl alcohol fiber into joint concrete are taken.Meanwhile such measures as roller and pressure slot technique,improving the strength of coarse aggregate,adjusting... |
| |
| Keywords: | bridge splicing crack vertical joints antiskid crack control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
