成果名称：Exploring the impact of winds loads on tower crane operation

作者：Lianghai Jin; Han Liu; Xiazhong Zheng; Shu Chen

期刊：Mathematical Problem in Engineering

摘要：The construction industry continues to be one of the industries with the highest accident rate. Tower cranes have always been the central component of many construction operations. With recent advancements in tower cranes, more efforts have been made for their safe operation. The impact of natural environmental factors on the operation of tower cranes cannot be ignored, especially the impact of the wind load, which can be found in construction regulations worldwide. Therefore, a large number of recent studies have focused on exploring different approaches to improving the impact of loads, such as improved feedback controllers and collocated sensors. However, there are few studies on the impact of the flexible cable pendulum system under wind load. To quantify the impact in this paper, first, the swing model of the hanging and the model of sling fluctuation are proposed as the base. Second, the flexible cable pendulum model is designed for the impact of tower cranes under wind load. By field experiments, the applicability of the model in practical use is analyzed. A case of the Crane Beach Hydropower Station is investigated as a demonstration. With MATLAB programming, the variation in the hanging impulse with wind speed is shown, indicating that the maximum wind speed should be 12 m/s if the factors that people can control are considered. When considering the factors that can be harmful to humans, the maximum wind speed is 17 m/s. With the proposed model, the impacts of wind load on tower crane operation can be quantified without actual deployment, offering a more straightforward quantitative tool for safe regulations and engineering management.

论文创新点：In this work, we analyzed the causes of wind influence on tower crane and built the model of the flexible cable pendulum system and quantified the impact of wind loads. Then, combined with human factors, the maximum wind speed that the crane can operate is obtained. Finally, some Suggestions are put forward for the revision of safety regulations and field engineering management.

论文链接：https://doi.org/10.1155/2020/2807438