ON THE EFFECTIVENESS OF METAL BALCONY BRIDGES

Abstract

The article is devoted to the use of metal elements to create structural forms of transitions and bridges between buildings and their blocks. Leading research and production and design institutions such as Research Institute of Reinforced Concrete, Central National Research Institute of Building Structures, Project Steel Design pay attention to the development and improvement of structural forms of bridges-balconies. An important point in the development of the structural form of the bridge-balcony is taking into account the actual operation of building structures and the presence of lifting equipment at the construction site - a tower or other crane. The technical and economic efficiency and architectural expressiveness of bridges - transitions between building buildings quite often conflict with each other and achieving their compatibility in the construction of buildings is a rather difficult and necessary task. The studies carried out on five computer models made it possible to obtain a structural solution of the bridge-balcony, combining architectural expressiveness and economic efficiency in terms of metal consumption and the use of lifting equipment at the construction site without involving additional lifting mechanisms. Steel saving on arrangement of bridge-balcony, made in the form of spatial trusses of triangular outline in cross section, in comparison with basic version amounted to more than 50%.