“虚拟起算点法”计算复曲线匝道立交桥线位数据

结合苏嘉杭高速公路苏州北互通立交桥的线位计算及施工放线测量,介绍互通式立交匝道曲线线位数据的计算方法,尤其对于复曲线采用虚拟起算点法计算其线位数据。结果表明:该方法计算线位数据的准确性和可应用性补充了教材和专业书缺乏对复曲线线位数据计算公式的空白。

Virtual Start Pointof Complex Curve Ramp Overpass-line Data

The paper introduces the calculation method for interchange multi-level crossing bridge linear data referring to the setting out and linear calculation for construction of the interchange bridge located in the northern part of Suzhou belonged to Sujiahang Highway,especially apply Virtual Start Point for calculating the linear data of compound curve,which proved the accuracy and appliance for calculating linear data by apply this method,and supplement the teaching and professional books with the compound cur...