Analysis of different types of ceilings in steel skeleton constructions

摘要

In this paper we will see a comparison between various types of ceilings and between-floor constructions. We compared a classical reinforced concrete plate, a classical reinforced concrete plate between secondary beams, a span reinforced concrete plate and a span reinforced concrete plate between secondary beams. In the first stage, we dimensioned and defined necessary quantity of materials. With the classical reinforced concrete plate, we used a computer programme ESA.Prima Win 3.6 to establish inner forces. The necessary quantity of armature reinforcement was determined by the limit states method. While dimensioning the span reinforced concrete plate, we used charts, provided by the manufacturer of particular sheet metal and a computer programme for calculating span ceilings used by the company Trimo. While dimensioning secondary beams (regular and span), we took in account European standards. After we established necessary quantity of materials for each type of ceiling, regarding the given load and span, we converted the results into final price. The prices were provided by the supplies department of the company Trimo. The price of each material consists of its transport to the construction site and its actual construction. In the case of classical reinforced concrete plate, the plate itself is supporting in one or two directions. Both, the classical reinforced concrete plate and span reinforced concrete plate between secondary beams, have the secondary beam at the half or at one third of the span b. Solutions for our examples of between-floor constructions are presented in following chapters. While presenting the results, we have included price comparisons and findings between each example. We have also estimated prices as to which type of ceiling is most suitable regarding the given load and span.