Determining of the optimal geometric shape of the combined arch system grid
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 66
Abstract
The question of the geometric shape of flexible elements grid designation in a combined arch system guided by the condition of its operability and the minimum consumption of the material structure is investigated in the article by the author. At this stage, this issue is supposed to be solved by using the geometric shape of the grid, without resorting to the preliminary tension of its elements. To determine the geometry of the grid, evenly distributed over half of the span in proportion to the evenly distributed throughout the span loads are taken, because this combination of loads can cause the compressive efforts in some elements of a flexible grid. The performed studies showed that the optimal shape of the grid does not depend on the upper belt number of panels, but depends only on the ratio of the values of the constant and time loads. The obtained results of the investigation make possible to define the grid geometric shape of the combined arch system by taking into account the given ratio of constant and time loads in such a way that all elements of the flexible grid will work on tension, and the consumption of the material of structures will be the lowest.
Authors and Affiliations
P. M. , Singayevsky
Keywords
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