精轧螺纹、连接器在先张法施工中的应用  

Application of Fine-rolled Screw Thread and Connector in Pretensioning Construction

作　　者：张成发 原子峰 高晓慧 孟祥懋 

机构地区：[1]中交一航局城市交通工程有限公司,天津市300457 [2]中交一航局第三工程有限公司,大连市116000 [3]吉林达通工程建设有限公司,通化市135100

出　　处：《公路》2016年第6期169-171,共3页Highway

摘　　要：在小型板梁的桥梁施工中,多采用先张法建立预应力,预应力钢绞线施工是桥梁施工质量控制的关键环节之一。针对16m空心板梁预应力先张板预制过程中,预应力靠连接器来传递和控制预应力,改进了施工过程中钢绞线直接固定在张拉横梁上的诸多不便。In small plate girder bridge construction,pretentioning method is commonly adopted to establish the prestressing,and prestressed steel strand construction is one of the key part of bridge construction quality control.Based on the precast procedures of the prestressing slab for the 16 mvoid slab beam,connector is used to transfer and control the prestressing,which has improved the inconvenience caused by steel strand directly fixed on the tensioned beams in construction process.

关 键 词：桥梁 先张法 施工 精轧螺纹钢 连接器 

分 类 号：U448.35[建筑科学—桥梁与隧道工程]