董梁高速上跨瓦日铁路立交桥成功转体

Core Viewpoint - The successful completion of the rotation construction of the overpass bridge on the Dongliang Expressway marks a significant breakthrough in the project, which is crucial for enhancing regional industrial cooperation and cultural tourism exchange in Shandong Province [1][4]. Group 1: Project Details - The overpass bridge is a double-cantilever cable-stayed bridge with spans of 80 meters and 100 meters, and a total rotation length of 177 meters, requiring a counterclockwise rotation of 67.4 degrees [4]. - The bridge weighs 25,000 tons, equivalent to the weight of 20,000 ordinary cars, and is located just 12.9 meters from the nearest railway fence, necessitating high safety standards during construction [1][4]. Group 2: Technological Implementation - The project utilized BIM technology to create a three-dimensional model, allowing for precise predictions of stress points and posture changes during construction [4]. - A BeiDou real-time monitoring system was employed to achieve millimeter-level precision in the completion of the bridge's rotation and alignment [4]. Group 3: Project Significance - The Dongliang Expressway's Shenxin section spans 197.108 kilometers and is designed with a dual four-lane standard, with a planned speed of 120 kilometers per hour [4]. - The completion of this project is expected to significantly promote industrial cooperation and cultural tourism exchanges along the route [4].