大跨度无粘结预应力梁施工技术研究  

Construction Technical Research of Long-span Unbonded Prestressed Beam

作　　者：王忠[1] 朱锡丰 任波 曹金元 

机构地区：[1]淮安市建设工程质量监督站,江苏淮安223001 [2]南通建筑工程总承包公司,江苏南通226000 [3]江苏启航建设工程有限公司,江苏淮安223001

出　　处：《淮阴工学院学报》2014年第3期54-57,共4页Journal of Huaiyin Institute of Technology

摘　　要：结合淮安体育中心体育场工程,从张拉设备的选取、无粘结预应力钢筋的制作、铺设、张拉施工工艺的确定、混凝土浇筑质量及锚具封堵工艺等方面详细介绍了大跨度无粘结预应力梁的施工工艺,并结合该工程特点,提供减少预应力损失的张拉方案,给出相应的张拉工程质量控制要求等有效措施,保证了工程质量,为今后类似的工程施工提供参考。Based on Huaian Sport Center Project, construction technology of a long span unbonded prestressed beams was introduced in detail from making and laying of prestressed reinforcement to stretching plan. The reduction measures of prestress loss were provided, and those measures guaranteed the engineering quality. The research results could provide reference for further research and construction in similar engineering.

关 键 词：大跨度无粘结预应力梁 张拉方案 施工工艺 预应力损失 

分 类 号：TU74[建筑科学—建筑技术科学]