ФАКТИЧЕСКАЯ СМЕННАЯ ЭКСПЛУАТАЦИОННАЯ ПРОИЗВОДИТЕЛЬНОСТЬИ СТОИМОСТЬ МОНТАЖА БАШЕННОГО КРАНА И СРАВНЕНИЕ ИХ С НОРМАТИВНЫМИ
DOI:
https://doi.org/10.31713/budres.v0i39.029Abstract
Tower crane - a rotary jib crane with an arrow attached to the top of a vertically located tower.
The main purpose of the tower crane is to service the territory of construction sites of buildings and structures, warehouses, landfills, loading and unloading of transport materials - during construction and installation and loading and unloading operations.
Prefabricated structural elements of the building are mounted by a crane and one structure is lifted and installed in one cycle.
The process of installation of floor slabs during the construction of a 9-storey building is investigated in the work.
It is conducted a comparison of the actual variable operational productivity and the cost of a tower crane installing with the normative indicators. While determining the actual variable operating capacity of the tower crane it was determined: the required lifting height of the hook; the crane was selected; the length of a working cycle without combination and at combination of operations; variable productivity of the crane at the combined and incompatible cycles; efficiency of combination of operations at work of the tower crane. While determining the actual variable operating cost of the crane installation was determined: estimated cost of installation of structures; specific capital investments for the purchase of assembly cranes; the reduced costs of installation of structures. The obtained results were compared with normative indicators.
The actual variable operating capacity and the cost of installing a tower crane were lower than the normative values. That is, regulatory indicators are adopted with a significant margin.
The combination of operations and the height of installation during the operation of the tower crane significantly affect the cost of installation of structures.
