Stability and bearing capacity of arch-shaped corrugated shell elements: experimental and numerical study

Piekarczuk, Artur; Malowany, Krzysztof; Więch, Przemysław; Kujawińska, Małgorzata; Sulik, P.

doi:10.1515/bpasts-2015-0013

Cited by 14 publications

(15 citation statements)

References 8 publications

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“…3. Corrugations and waves on the profile surface were adopted based on the measurements of the geometry of the actual component [26]. In order to represent physical conditions of the structure's behaviour, the influence of the adjacent arc segments was modelled by appropriate boundary conditions ("remote point" [28] sets which allow a segment to be shifted in the direction of the force (direction along the Y and Z axes of the global co-ordinate system, Fig.…”

Section: Test Itemmentioning

confidence: 99%

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Performance evaluation of the construction products as a research challenge. Small error – big difference in assessment?

Szewczak

Piekarczuk

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper refers to the importance of test results uncertainty in the assessment of the construction product performance. Uncertainty understood as dispersion attributed to any value which is result of the tests, calculations or other evaluations, occurs at every level of assessment (material, product, construction). Authors presented the various approaches to uncertainty estimation, especially in situation of small number of tests results which is characteristic for testing of construction products. Effects of uncertainty on final assessment of construction product was analyzed using the example of bearing capacity of thin-walled structure obtained by numerical calculation. Different values of material tests uncertainty resulting from different approaches to its assessment was taken into account. It was demonstrated that the difference in the results of strength tests of a material, which falls within the limits of uncertainty, may result in a very significant difference in the evaluation of a structure.Key words: uncertainty, numerical calculation, uncertainty influence on product assessment. Each value resulting from tests may only be considered in terms of probability. Unfortunately, in a small number of cases it is possible to express this probability using a probability density function (PDF) which is characterised by the expectation value and standard deviation (SD). In all tests which yield qualitative results (ordinal scale with two categories e.g. "fulfilled", "not fulfilled") or semi-quantitative results (ordinal scale with more than two categories), which, in the authors' opinion, are the majority of tests to which construction products are subjected, the determination of a PDF is an issue requiring extensive inter-laboratory tests performed on repeatable items [5][6][7]. Usually this is not possible for tests on construction products.Linking a value being measured with a PDF that is assigned to it is much easier for quantitative methods, for which the estimation of the uncertainty of a test result, allowing one to provide a PDF, is subject to numerous guidelines and instructions. The basic principles have been developed by the Joint Committee for Guides in Metrology [8], and are commonly applied by virtually all laboratories. However, as will be demonstrated for destructive (e.g. mechanical) testing, the estimation of uncertainty may be associated with numerous ambiguities.Presented by Walker et al. [9] typology and terminology of harmonized uncertainty provide uncertainity identification by location, including inter alia parameter uncertainty (associated with the variability of input data) and model uncertainty (associated also, but not only with lack of sufficient understanding of the system). These two kind of uncertainty sources are presented in test results and in estimation of uncertainty of the test results (uncertainty of estimated uncertainty). Variability relating to laboratory testing results has many components. Some of them, e.g. metrological parameters of testing equipment, ...

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Section: Test Itemmentioning

confidence: 99%

“…The issue of load-bearing capacity and rigidity of coldrolled profiles has been addressed in studies and experiments [26,27]. Based on these studies and experiments, it was concluded that the load-bearing capacity and stability of profiles are determined by strong nonlinearities associated with the geometry of the profile and material model.…”

Section: Test Itemmentioning

confidence: 99%

Performance evaluation of the construction products as a research challenge. Small error – big difference in assessment?

Szewczak

Piekarczuk

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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“…In 2015, a special issue of the Bulletin of the Polish Academy of Sciences: Technical Sciences dedicated to diagnosis and durability of buildings was published [13]. Studies published in that issue: K. Flaga [14]; Z. Owsiak et al [15,16]; Z. Rusin et al [17]; L. Czarnecki, P. Woyciechowski [18]; B. Goszczyńska et al [19]; K. Wilde et al [20]; A. Garbacz [21]; Z. Hoła [22]; M. Iwański [23]; A. Szydło [24]; A. Piekarczuk et al [25]; M. Kolbrecki [26]; D. Kowalski et al [27] are considerable evidence of achievements and research ambitions in this area.…”

Section: Czarnecki and D Van Gemert Scientific Basis And Rules Ofmentioning

confidence: 99%

Scientific basis and rules of thumb in civil engineering: conflict or harmony?

Czarnecki

Gemert

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. Science and engineering intermingle in the area of construction. Engineering works, often of great dimensions and design life cycle of many decades, have to be designed on a scientific basis since the safety of hundreds of users depends on their design. The task of scientific institutions is to define the construction performance within categories that correspond to the contemporary level of knowledge and technology. A construction appraiser who speaks out in a way that ensures unquestionable competence about the performance of elements and buildings (existing and under construction), should be convinced of the scientific basis of his opinions. A comparison of construction sections vs. basic requirements presents an archetype of the science of construction. A matrix of the science of construction reveals its multi-faceted nature; if related to time -the issue of durability has to be considered, and if related to the scale -the complexity. Defining the construction performance in terms of technical features is a constant search for a relationship between the material model and the usability model of a building. The construction industry uses a lot of "rules of thumb", more than any other sector of technology. In the era of computer-aided design, CAD, and building information modelling (BIM), those rules of thumb remain invaluable verification tools.Key words: building performance, appraiser, matrix of the science of construction, rules of thumb, durability, complexity, diversified development. Scientific basis and rules of thumb in civil engineering Defining building performanceThe primary task of universities and research institutes in the scientific discipline of construction is to continuously define building performance in a manner consistent with the current level of knowledge and technology. This means permanently seeking true solutions [2] -the relationship between the two corresponding models [3]: the material model (material model is used here to represent materials, analyses and geometries) and the usability model, which combines properties and requirements (Fig. 1).

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“…The evaluation of the load capacity and rigidity of profiles is difficult, as product ranges can vary in their bending radius and sheet core thickness. Laboratory tests and studies [5,6] revealed that the load capacity and stability of corrugated profiles determine strong non-linearity. It was also highlighted that it is difficult to select an appropriate profile geometry model from numerical calculations.…”

Section: Introductionmentioning

confidence: 99%

Test-supported numerical analysis for evaluation of the load capacity of thin-walled corrugated profiles

Piekarczuk

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper concentrates on a quantitative evaluation of the load capacity of thin-walled, curved steel profiles used as arched roofs in building structures. Corrugation of a profile surface formed by cold rolling changes its load capacity as compared to thin-walled profiles. The paper presents a comparative evaluation of the influence of a sample profile corrugation on its ability to transfer internal forces. The results of the study are presented as limit curves describing load capacity at simultaneous bending and compression. The analysis was conducted using a numerical computational method supported by a study of elements in natural scale. The paper presents a methodology of test-supported calculations and guidelines for practical use by designers.

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Stability and bearing capacity of arch-shaped corrugated shell elements: experimental and numerical study

Cited by 14 publications

References 8 publications

Performance evaluation of the construction products as a research challenge. Small error – big difference in assessment?

Performance evaluation of the construction products as a research challenge. Small error – big difference in assessment?

Scientific basis and rules of thumb in civil engineering: conflict or harmony?

Test-supported numerical analysis for evaluation of the load capacity of thin-walled corrugated profiles

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