Σχεδιασμός υποστέγου συντήρησης αεροσκαφών

Abstract

The subject of this thesis is the formatting, analysis and sizing of a metal construction of large dimensions using the commercial design programme SAP2000 V15. Specifically, this metal construction is an aircraft maintenance hangar based at Athens International Airport ‘El. Venizelos’ in Spata, Attika. The building will be used for the maintenance and parking of Dash-100 Bombardier aircrafts. It has been designed to accommodate up to 2 aircrafts at any one time. The dimensions of the hangar were determined by the size of the aircrafts, taking into consideration also, the necessary safety gaps required between them, and between the aircraft and the hangar. A bridgecrane is installed for transporting various parts of the aircraft that need to be repaired or replaced. The following chapters extensively describe the various components required in the design of the hangar, the frame sections, the orientation of the beams as well as the static analysis of their functions. The various load cases have been analysed based on the specifications outlined in Eurocode 1 and seismic behaviour is based on the specifications in Eurocode 8. Beginning the simulation, there is extensive reference to the functions of the programme SAP 2000, and an initial approach to geometrical design of the hangar is described. We introduce the definition of the basic parameters that relate to the materials, frame sections, joints and restraints that are involved in the composition of the structure. By forming a three-dimensional model, the load cases and load combinations are defined, while strength and seismic behaviour checks are carried out. Finally, with the use of the program and its functions, the hangar doors are designed and their size is determined. Their structure, resistance and functionality is tested and determined using various load combinations – the arrows resulting from bending are calculated. The specificity in the study of such a construction is due to the requirement of large openings and height due to the dimensions of the aircraft, and the absence of internal columns for safe movement and parking them. These geometric characteristics give the building a special sensitivity to wind loads, which are verified and checked through the programme.