摘要
针对大跨度预应力混凝土连续刚构桥梁成桥后普遍存在"腹板开裂"、"跨中下挠"等质量问题,综合分析研究了国内外大跨度连续刚构桥梁现状,探讨了大跨度预应力混凝土连续刚构桥梁设计理论和施工工艺的优化和更新。
The quality problems like cracks in webs and defection at mid-spans commonly occur in the completed long span prestressed concrete continuous rigid-flame bridges. In this paper, the current status of the type of the bridges at home and abroad are comprehensively analyzed and studied, the rational modes of creep calculation are put forward and the relevant issues on optimizing and upgrading the existing design theories and construction technology of the bridges are discussed as well.
出处
《工程建设与设计》
2008年第9期76-79,共4页
Construction & Design for Engineering
关键词
连续刚构桥
裂缝
徐变
施工工艺
设计理论
continuous rigid-frame bridge
crack
creep
construction technology
design theory
