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Volume 9
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Article

The Impact of Node Location Imperfections on the Reliability of Single-Layer Steel Domes

by
Paweł Zabojszcza
* and
Urszula Radoń
Faculty of Civil Engineering and Architecture, Kielce University of Technology, al. Tysiąclecia Państwa Polskiego 7, 25–314 Kielce, Poland
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(13), 2742; https://doi.org/10.3390/app9132742
Submission received: 4 June 2019 / Revised: 26 June 2019 / Accepted: 3 July 2019 / Published: 6 July 2019
(This article belongs to the Special Issue Short-Term Forecasting in Civil Engineering with Multidisciplinary Approaches: Combined Numerical, Experimental and Statistical Methods)
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Abstract

This study is an attempt to assess the effect of node location imperfections on the reliability dome. The analysis concerns a single-layer steel lattice dome that is very sensitive to node snap-through. The load-displacement path of the structure was determined using the program, Finite Element Method-Krata. To determine the failure probability, reliability index, and elasticity index, the first-order reliability method approximation method was employed. The reliability analysis was conducted with Numpress Explore software, developed at the Institute of Fundamental Technological Research of the Polish Academy of Sciences, Warsaw. In this paper, it is shown how large differences in the assessment of the safety of a structure can appear when we incorrectly estimate the standard deviation of the random variable responsible for the imperfections of node locations.
Keywords: single-layer lattice domes; reliability index; elasticity index; first-order reliability method single-layer lattice domes; reliability index; elasticity index; first-order reliability method

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MDPI and ACS Style

Zabojszcza, P.; Radoń, U. The Impact of Node Location Imperfections on the Reliability of Single-Layer Steel Domes. Appl. Sci. 2019, 9, 2742. https://doi.org/10.3390/app9132742

AMA Style

Zabojszcza P, Radoń U. The Impact of Node Location Imperfections on the Reliability of Single-Layer Steel Domes. Applied Sciences. 2019; 9(13):2742. https://doi.org/10.3390/app9132742

Chicago/Turabian Style

Zabojszcza, Paweł, and Urszula Radoń. 2019. "The Impact of Node Location Imperfections on the Reliability of Single-Layer Steel Domes" Applied Sciences 9, no. 13: 2742. https://doi.org/10.3390/app9132742

APA Style

Zabojszcza, P., & Radoń, U. (2019). The Impact of Node Location Imperfections on the Reliability of Single-Layer Steel Domes. Applied Sciences, 9(13), 2742. https://doi.org/10.3390/app9132742

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