塔吊轨道止档的改进胡宪章李传昌赵严辉１改进轨道止档的原因对于行走作业的塔式起重机，具有良好的行走安全防护设备十分重要。为了避免在行走限位突然失灵而导致塔吊冲出轨道发生事故，在每根轨道的两端必须装有止档。对于塔吊止档的形式多种多样，国家没有明确制定统一... Improvements to the stop of the tower crane track Hu Jianli Li Chuanchang Zhao Yanhui 1 Reasons for improving track stops It is important for tower cranes to walk and have good walking safety protection equipment. In order to avoid accidents when the tower crane is out of orbit due to a sudden failure of the travel limit, stops must be installed at both ends of each track. There are various forms of tower crane stops, and the country has not clearly established unified...