期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
装配式预制墩柱高效安装关键技术研究
1
作者 赵维 《山西建筑》 2024年第24期79-82,共4页
研究了高烈度区城市桥梁装配式下部结构技术,以市政行业及桥梁建设发展需求为背景,开发预制装配式城市桥梁下部结构(预制墩柱),主要将预制墩柱与现浇承台分别预埋钢管,组合焊连接,形成钢混连接结构形式,解决了常规预制墩柱在8度高烈度... 研究了高烈度区城市桥梁装配式下部结构技术,以市政行业及桥梁建设发展需求为背景,开发预制装配式城市桥梁下部结构(预制墩柱),主要将预制墩柱与现浇承台分别预埋钢管,组合焊连接,形成钢混连接结构形式,解决了常规预制墩柱在8度高烈度区新建或改扩建装配式桥梁施工中承载力不高、抗震性能弱的技术难题。主要论述了装配式预制墩柱的设计、施工及应用,从而实现该技术在桥梁建设中的推广应用,提升桥梁现代化建设水平。 展开更多
关键词 装配式预制墩柱 高烈度区桥梁施工 钢混连接结构 承台钢管定位 桥墩定位调平 保护层施工
下载PDF
Proposition of a New Type of Jointless System For Existing Concrete Bridges 被引量:2
2
作者 Yuichi Ishikawa Minobu Aoyama +2 位作者 Masami Kuroyanagi Masatugu Nagai Takeshi Miyashita 《Journal of Physical Science and Application》 2014年第2期84-89,共6页
Since 1990s, the use of deicing salts (i.e., chlorides) has dramatically increased in areas with heavy snowfall in Japan. As a result, the water mixed with salts has accelerated the damage of the reinforced concrete... Since 1990s, the use of deicing salts (i.e., chlorides) has dramatically increased in areas with heavy snowfall in Japan. As a result, the water mixed with salts has accelerated the damage of the reinforced concrete (hereafter, RC) structures. Recently conducted inspection results of RC bridges have reported that many of the damages or deteriorations are observed at the girder ends and abutments This is caused from the water leakage due to the aged expansion joints. In general, the cost for repairing the damaged RC structures is much higher than that for renewing the expansion joints. Therefore, to prevent these damages, we developed a new highly durable jointless system, named RC plug joint, for existing RC bridges with a bridge length less than 40 meters. The RC plug joint connects the abutment's backwall to the superstructure's deck using reinforcing steel bars and fiber reinforced concrete. The newly developed RC plug joint system can prevent water leakage and allow for a smooth ride of vehicles at the joint. This paper will explore and discuss the development of the RC plug joint, analysis of conducted investigations, and future installation methods. 展开更多
关键词 Jointless system RC plug joint field investigation leakage assessment travelling performance
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部