Deformation Analysis of Reinforced Beams Made of Lightweight Aggregate Concrete.

Clicks: 342
ID: 88902
2019
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Ranked #115 of 812 articles by views in Materials (Basel, Switzerland)

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Abstract
In the present trend of constructing taller and longer structures, the application of lightweight aggregate concrete is becoming an increasingly important advanced solution in the modern construction industry. In engineering practice, the analysis of lightweight concrete elements is performed using the same algorithms that are applied for normal concrete elements. As an alternative to traditional engineering methods, nonlinear numerical algorithms based on constitutive material models may be used. The paper presents a comparative analysis of curvature calculations for flexural lightweight concrete elements, incorporating analytical code methods EN 1992-1 and ACI 318-19, as well as a numerical analysis using the constitutive model of cracked tensile lightweight concrete recently proposed by the authors. To evaluate the adequacy of the theoretical predictions, experimental data of 51 lightweight concrete beams of five different programs reported in the literature were collected. A comparison of theoretical and experimental results showed that the most accurate predictions are obtained using numerical analysis and the constitutive model proposed by the authors. In the future, the latter algorithm can be used as a reliable tool for improving the design standard methods or numerical modeling of lightweight concrete elements subjected to short-term loading.
Reference Key
bacinskas2019deformationmaterials Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bacinskas, Darius;Rumsys, Deividas;Sokolov, Aleksandr;Kaklauskas, Gintaris;
Journal Materials (Basel, Switzerland)
Year 2019
DOI
E20
URL
Keywords
lightweight aggregate concrete numerical modeling reinforced concrete constitutive model curvature flexural elements short-term loading tension stiffening

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