A construction hoist is a vertical lifting machine installed on the exterior of a building for transporting construction personnel and building materials. Construction practice has proven that using construction hoists for the vertical transportation of personnel and materials in high-rise construct

For base-frame fixed self-erecting tower cranes, a block-type reinforced concrete foundation is most suitable. On foundations with relatively high soil bearing capacity, the dimensions of such concrete foundation blocks may be taken as 200 cm × 200 cm × 50 cm, and both the top and bottom of the bloc

For all industries, safety work must be done well. For high-risk operations such as construction elevators, it must not be neglected. According to surveys, the results show that overloading is one of the main causes of construction elevator accidents. Today we will discuss how to improve the safety