跨铁路转体斜拉桥及施工设备碰撞分析

Collision Analysis of the Swivel Cable-stayed Bridge Across Railway and Construction Equipment

三维施工模拟可为复杂节点的施工提供指导,相关人员可根据节点制作相应模型,结合施工方法预测施工过程中可能出现的问题,从而提前进行规避。文章以哈尔滨市哈西大街打通工程跨铁路桥梁施工为工程背景,结合图纸信息创建相应的BIM模型,采用基于目标检测的识别和区域定位方法,识别转体桥和塔吊施工阶段的位置及运动姿态,进行碰撞分析,防止危险发生。该方法应用于施工现场,可指导实际施工,保证跨线桥梁转体施工顺利进行。

3D construction simulation can provide guidance for the construction of complex nodes.Relevant personnel can make corresponding models according to the nodes and predict the possible problems in the construction process in combination with the construction method,so as to avoid them in advance.This paper takes the construction of bridge across the railway in Harbin Haxi Street Crossing Project as the engineering background,creates the corresponding BIM model based on the drawing information,and uses the recognition and regional positioning method based on target detection to identify the position and movement posture of the swivel bridge and tower crane in the construction stage,and carries out collision analysis to prevent the occurrence of danger.This method is applied to the construction site,which can guide the actual construction and ensure the smooth construction of the bridge across the line.