花瓶墩钢模板放样设计研究

Study on Steel Formwork Lofting Design of Vase Pier

摘要:

花瓶墩外观造型新颖,经济性好,因而在桥梁建设中获得了广泛应用。传统的定型钢模板设计误差大所致的模板拼缝漏浆事故屡见不鲜,使得墩身混凝土表面出现蜂窝麻面的现象。以郑阜高铁沈界1号特大桥花瓶墩为工程背景,运用AutoCAD和Revit软件建立墩身的三维模型,采用投影法和钣金展开法解决了复杂空间曲面的放样难题。研究成果可为今后类似工程提供技术参考。

Abstract:

Due to its novel appearance modeling and good economy, the vase piers are widely used in the bridge construction. The formwork joint leakage accidents caused by the large design error of traditional set-shaped steel formwork are common, which let the concrete surface of pile shaft with honeycomb pockmarked phenomenon. Taking the vase piers of Shenjie No.1 Bridge in Zhengzhou-Fuyang High-speed Railway as the engineering background, the three-dimensional model of pier shaft is built by the software AutoCAD and Revit. The projection method and sheet metal unfolding method are used to solve the complex spatial cambered lofting difficulties.