百余辆重载卡车试压，双柳长江大桥荷载试验完成冲刺明年通车

Core Viewpoint - The Shuangliu Yangtze River Bridge project has successfully completed critical load tests, validating its structural capacity and performance, which is essential for its upcoming acceptance and operational trials [1][7]. Group 1: Load Testing Details - The load testing for the bridge began on the evening of December 18 and lasted for four days, involving both static and dynamic load tests to assess key structural indicators [1]. - A specialized team of 74 professionals from China Railway Bridge Science Research Institute designed a comprehensive testing plan, utilizing 128 heavy trucks to simulate actual traffic loads, with a maximum single load of 4,480 tons, equivalent to the weight of 3,000 small cars [1][4]. Group 2: Testing Methodology - The team conducted 15 types of static load tests focusing on stress, shape, tower displacement, cable tension, and anchor cable tension, using 35-ton heavy vehicles strategically placed on the bridge [4]. - Nine types of dynamic load tests were performed to evaluate the bridge's self-vibration frequency, damping ratio, vibration mode, and impact coefficient, simulating real traffic conditions through vehicle movement and braking [4]. Group 3: Technological Innovations - The project incorporated advanced technologies such as automatic measurement robots and drone point cloud technology to enhance the load testing process [7]. - The load tests provided a thorough assessment of the bridge's design and construction quality, establishing a "fingerprint" archive for future reference [7]. Group 4: Project Timeline and Impact - The Shuangliu Yangtze River Bridge is expected to be substantially completed by the end of this year and aims to commence trial operations by the end of March 2026 [7]. - The bridge will significantly reduce travel time from Xinzhou District in Wuhan to Ezhou from one and a half hours to just five minutes, enhancing transportation connectivity in the eastern region of Wuhan and contributing to regional economic development [7].