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xian zhang fa zhe xian pei jin yu ying li hun ning tu xiang liang shi gong ji shu
Author(s): 
Pages: 100-105
Year: Issue:  4
Journal: Journal of Railway Science and Engineering

Keyword:  折线预应力先张法预应力混凝土箱梁施工技术;
Abstract: 以岳常高速中的25m先张法折线配筋预应力箱梁预制施工为背景,介绍先张法折线配筋预应力混凝土箱梁施工中张拉台座、弯起器的设计与施工、预应力的张拉与放张工艺等3项关键性施工技术和相关施工经验,并对张拉台座、弯起器的设计提出改进建议,研究结果表明:技术改进后施工效率得到有效提高,箱梁预制质量良好,该项技术可为类似工程提供设计和施工借鉴。
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