单元错齿式铸铁(钢)桥梁伸缩装置的设计与研究  

Design and research of unit staggered cast iron axial expansion device

作　　者：单飞 何亚辉 赵宏宇 SHAN Fei;HE Yahui;ZHAO Hongyu(Henan Transportation Development Research Institute Co.,Ltd.,Zhengzhou 450018,Henan,China;Highway Administration Bureau of Henan Provincial Transportation Department,Zhengzhou 450018,Henan,China)

机构地区：[1]河南交通发展研究院有限公司,河南郑州450018 [2]河南省交通运输厅公路管理局,河南郑州450018

出　　处：《金属功能材料》2022年第1期90-94,共5页Metallic Functional Materials

摘　　要：桥梁伸缩装置是桥梁中最容易和最早发生破坏的结构,引发桥梁伸缩装置发生破坏的原因较复杂,但最根本的原因为伸缩结构的设计和施工。设计和研发了单元错齿式铸铁(钢)桥梁伸缩装置,其在桥梁伸缩处设置铸铁(钢)浇筑成型的、单元组装的、长短不等伸缩齿互相交错的伸缩装置,主体采用铸铁(钢)一体铸造成型,填缝材料采用高分子弹性体。详细介绍了其结构特征、施工要点和技术优势,并已在多个国省道干线项目中成功应用。单元错齿式铸铁(钢)桥梁伸缩装置具有施工简便、行车安全舒适和维护简单等优点,具有较好的市场潜力和推广价值。The coaxial telescopic device is the easiest and initially damaged structure in the main shaft.The reasons for the damage of the axial telescopic device are more complicated,but the most fundamental reason is the design and construction of the telescopic structure.The cast iron axial expansion device,detailed introduction of its structural features,construction key points and technical advantages,and has been successfully applied in many national highway projects.And other advantages,it has better market potential and promotion value.

关 键 词：桥梁 伸缩装置 公路干线 结构特征 

分 类 号：U443.31[建筑科学—桥梁与隧道工程]