Steel and composite structural shells in the construction of high-rise building

St. Petersburg State Polytechnical University, Polytechnicheskaya st. 29, 195251, St. Petersburg, Russia

^a Corresponding author: redish132132@yandex.ru

Abstract

In modern construction thin-shell structures are very popular because they can be easily used to make different constructive and architectural shapes. The main value of such constructions is the ability to use them as load-bearing structures and as the element of architectural image of building at the same time. Thin-shell structures allow us to solve the problems of construction rigidness and stableness, therefore it is rational to use shells in high-rise building structures. At the same time construction of high-rise buildings is connected with a number of special requirements. Disregard of those requirements can cause destruction of the building. In this research there were considered some challenges of high-rise building design on the business complex example. The comparative analysis of two various bearing shells was made. The first case was a metal grid shell, and the second was the combination of metal elements and reinforced concrete ribs. The reinforced concrete ribs (stiffeners) were used to improve the rigidness of the whole structure and to increase the bearing capacity.