Browsing by Author "Galaka, Viktoriia"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Optimization of prestressed roof structures' cross sections of industrial buildings
    (National Aviation University, 2020-12) Galaka, Viktoriia; Галака, Вікторія Віталіївна
    The topic of the thesis "Optimization of prestressed roof structures' cross sections of industrial buildings" is relevant due to the trend of construction of industrial buildings with large span beams, where there is a need for storage of materials and placement of technological equipment. An analytical review of the literature with a comparative analysis of methods for calculating steel prestressed load-bearing structures and selected the optimal for the calculation of the roof truss of an industrial building is fulfilled. In the proposed method of solving the problem of determining the optimal parameters of the truss and the geometric characteristics of the cross section is performed taking into account the influence of self-stress. The stress state of the truss at the optimal cross-sectional parameters should be such that under the action of external load, the tightening force from the pre-stress and the self-stress force, the stress in the extreme fibers is equal to the calculated resistance. The thesis presents the calculation of the roof truss with tendon prestressing. The paper provides references to current regulations to solve the problem.