Abstract
The paper presents analysis of limit state of bearing capacity and reliability of masonry structures. A masonry made of Autoclaved Aerated Concrete (AAC) with mortar for thin-layer joints was proposed. The basic calculations were carried out using the procedures available in the Eurocodes. A comprehensive analysis of the work of the masonry element was carried out. The numerical FEM model of the masonry member was made. A quantitative assessment of the safety of the structure was made by calculating the reliability index. During numerical simulation three parameter elastic-plastic model for material of masonry was used. All parameters were based on material experimental results. The analysis of masonry reliability was carried out using the probabilistic method. Masonry elements are widely used in construction, therefore their design should be based on a detailed analysis. Noteworthy is class execution of works of masonry structures and relatively high values of safety coefficient associated with it.
Highlights
Masonry structures are a type of construction that is constantly widely used in construction
It is important that the design process includes checking the condition of the limit state and determining the reliability of the element or the whole structure
The average values and coefficients of variation required in the design procedure are calculated assuming that the defined characteristic quantities are random variables described in normal distribution: by the average value of variables whose characteristic value is defined as the lower quantile: Mxid = Xkid /(1-1,645v)
Summary
Masonry structures are a type of construction that is constantly widely used in construction. It is important that the design process includes checking the condition of the limit state and determining the reliability of the element or the whole structure. The case in which the checked part of the masonry is placed between the door openings has been analysed This situation commonly occurs and requires special attention. The design of masonry elements is based on a number of basic assumptions, for example, class execution of works and the masonry category. In the paper, checking the limit state of masonry subjected to the compressive force was conducted. These analyses were made using procedures included in the EC6 [1]. Determining the reliability index and numerical analysis of the tested masonry
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