Civil Engineering and Architecture Vol. 9(5), pp. 1395 - 1408
DOI: 10.13189/cea.2021.090513
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Comparison of Cross-Laminated Timber and Reinforced Concrete Floors with Regard to Load-Bearing Properties


Alireza Bahrami *, Andreas Vall , Asaad Khalaf
Department of Building Engineering, Energy Systems and Sustainability Science, Faculty of Engineering and Sustainable Development, University of Gävle, 801 76 Gävle, Sweden

ABSTRACT

Floors of a building with the relatively new and environmentally sustainable structural material as cross-laminated timber (CLT) and traditional reinforced concrete (RC) are compared in this paper with regard to their load-bearing properties. StruSoft FEM-Design software is utilised to model, analyse and design an existing building using the CLT and RC floors. The building has three stories with a penthouse on the top floor. Modelling, analysis and design of the building can be summarised into five main steps. In step 1, the building with the RC floors is modelled, analysed and designed according to the geometries and specifications of the building. The RC floors of the building are then changed to the CLT floors with the similar thickness and the function of the building is checked for tensile and compressive stresses, utilisation ratio and deflection in step 2. Step 3 involves checking what reinforcing is required for the CLT floors to be approved with about the same thickness as the RC floors. In step 4, it is controlled whether a larger thickness of the CLT floors without reinforcing can withstand the identical conditions of the RC floors. From the obtained results, effects of thickness of the CLT floors and span width are examined. The structural stability of the building with the CLT and RC floors is controlled in step 5. Further, the CLT and RC floors of the building are compared in terms of their stresses, utilisation ratios and weights. The results of this paper demonstrate advantages of using the CLT floors. The CLT floors show good strength properties compared with their low weights. It is uncovered that the building with both of the CLT and RC floors is stable. Obtained results of the building with the CLT and RC floors from the StruSoft FEM-Design software are compared with those from calculations based on Eurocode 2 and Eurocode 5, which reveal good agreements with each other regarding their accuracy.

KEYWORDS
Cross-Laminated Timber Floor, Reinforced Concrete Floor, Tensile and Compressive Stresses, Utilisation Ratio, Weight, Structural Stability

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Alireza Bahrami , Andreas Vall , Asaad Khalaf , "Comparison of Cross-Laminated Timber and Reinforced Concrete Floors with Regard to Load-Bearing Properties," Civil Engineering and Architecture, Vol. 9, No. 5, pp. 1395 - 1408, 2021. DOI: 10.13189/cea.2021.090513.

(b). APA Format:
Alireza Bahrami , Andreas Vall , Asaad Khalaf (2021). Comparison of Cross-Laminated Timber and Reinforced Concrete Floors with Regard to Load-Bearing Properties. Civil Engineering and Architecture, 9(5), 1395 - 1408. DOI: 10.13189/cea.2021.090513.