The Zhuhai-Hong Kong-Macao Bridge is a sea-crossing bridge connecting Hong Kong, Macao and Zhuhai, and its construction involves a large number of mechanical principles and performance studies. The annual meeting of the Beijing Mechanics Society has invited the designers of the bridge to make relevant academic reports, and Professor Wang Jianxing, from the perspective of industry, education and research, communicated with the relevant designers, and the following is a brief introduction to the beauty of mechanics and mechanical properties of the Zhuhai-Hong Kong-Macao Bridge
First, the beauty of mechanics.
Structural beauty: The Zhuhai-Hong Kong-Macao Bridge adopts a unique suspension bridge structure, with a main span of 5,588 meters, making it one of the longest sea-crossing bridges in the world. The structural design of the suspension bridge makes the bridge have good stability under the action of sea breeze and waves, and also shows the beauty of the structure.
The beauty of lines: The lines of the Zhuhai-Hong Kong-Macao Bridge are smooth and concise, complementing the surrounding seascape. The bridge lines of the bridge echo the flow of the sea, showing the beauty of the lines.
2. Research on mechanical properties.
Wind tunnel test: In order to ensure the stability of the bridge in strong wind conditions, wind tunnel tests were carried out. By simulating the response of the bridge structure under different wind speed and wind direction, the wind resistance of the bridge can be evaluated and the basis for structural design can be provided.
Simulation: It is one of the important factors affecting the stability of a bridge. Through the simulation test, the performance of the bridge under the action of the bridge can be evaluated, including the response analysis, the evaluation of the seismic capacity of the structure, etc.
Fatigue performance study: Fatigue damage may occur due to the long-term impact of vehicle loads, sea breezes, waves, etc. Therefore, the fatigue performance of the bridge was studied to evaluate its fatigue life and fatigue limit under cyclic loads.
Optimization design: According to the results of the mechanical properties study, the structure of the bridge can be optimized. This may include improving the structural layout, enhancing key areas, replacing materials, etc., to improve the load-bearing capacity and stability of the bridge.
In short, the construction of the Zhuhai-Hong Kong-Macao Bridge involves a large number of mechanical principles and performance studies, showing its unique mechanical beauty. At the same time, the safety and stability of the bridge can be ensured through continuous monitoring and maintenance.