The second scheme allows the installation of the crane on a smaller site (size 22×15 m). In the presence of a nearby building, it can be used instead of an arrow to raise the tower. In this case, only a tower with a head and a crane trolley should be placed along the length of the yard.
The third scheme provides for the installation of the crane on a closer platform (size 24×11 m), which allows you to place only a tower without a head in length and a crane cart. In this case, the head and counterweight of the crane are mounted using an arrow strengthened on the wall of the building. In this case, the heel of the crane arrows is attached to the windowsill with a special clip..
Brick masonry at the base of the heel and a jumper of a window located under it are enhanced by a special design consisting of two screw struts, articulatedly attached to a steel lining that perceives the load from the heel of the mounting mast. The fourth scheme provides for the installation of cranes in the closest yards (size 11×8 m) that does not allow the layout of the elements of the tower crane.
In this case, the installation of the crane is carried out by building with the installation of a wooden auxiliary mast, strengthened on the windowsill of the upper floor. The fifth scheme considers the procedure for dismantling the tower crane in close conditions. Work is carried out here in sequence, reverse installation of a crane on a limited site. Recently, light, mobile tower cranes have appeared and have been successfully used for new construction, the installation of which is made in. the course of a few hours. Such cranes can be successfully used in the overhaul of residential buildings.
This group of cars includes cranes and lifts with a carrying capacity of 50 to 600 kg. This section provides their description in the order of decreasing carrying capacity and their technical characteristics is given. The data give a complete picture of all machines for vertical transport and installation of building parts weighing from 50 to 1500 kg used in the repair of residential buildings.
