Calculating optimal height of atrium roofing structure for the hotel in Dubna, Moscow Oblast.

Atrium is a well and frequently used element in modern multifunctional buildings. A retrospective on atrium design and construction in the world will be given to illustrate how it changed and developed through the course of human history. Based on scientific papers, local and international standards a consolidated definition of the term is given. However, in modern days the term "atrium" has different definitions depending on a country and engineering discipline. For calculation and modeling analysis to find an optimal height of atrium roofing structure a hotel building design with four-sided atrium is taken with location at Dubna, Moscow Oblast. The roof of this atrium has partially glazed translucent cover. Five roofing shapes are taken for comparison: flat, single-pitch, double-pitch, butterfly, trapezoid. List of criteria is chosen for analysis with focus on thermal performance of the atrium cover and insolation & daylight factor for internal spaces of the atrium. Thermal performance calculations are made according to Russian standards & design requirements and using for a reference a skylights manufacturer open-source thermal performance data for a skylight window system. Insolation and Daylight factor are calculated for the abovementioned roofing shapes using computer-aided modelling software (DIALux). Based on the calculations and computer-aided modelling a set of data is obtained, after that it is processed and analyzed to define an optimal solution for atrium roofing based on given criteria. [ABSTRACT FROM AUTHOR]