浅谈京沪高速改扩建工程中钢箱梁分块及预拱度控制分析研究

Analysis and research on partition of steel box girder and camber control in reconstruction and extension project of beijing shanghai expressway

随着新材料、新工艺的发展,钢结构桥梁在高速公路建设过程中逐步开始应用,钢结构桥梁具有跨径大、自重轻、施工速度快、便于后期维修保养等优点。本文通过对钢结构分块进一步研究分析其预拱度的控制,精确指导钢箱梁的厂内加工和现场的安装施工,更好的控制钢箱梁的施工质量。

With the gradual development of new materials and new technology,steel structure bridge is gradually applied in the process of highway construction.Steel structure bridge has the advantages of large span,light weight,fast construction speed,convenient for later maintenance and so on.In this paper,through the study of steel structure block,further analysis of the control of its camber is provided so as to accurately guide the steel box girder factory processing and on-site installation construction,better control the construction quality of steel box girder.