Stress-strength state of the wooden frame structure of energy-efficient buildings of the NZEB standard
DOI:
https://doi.org/10.32347/2410-2547.2025.115.76-84Keywords:
wooden frame, energy efficiency, NZEB, stress, deformation, reflectivity, numerical modeling, LIRA PCAbstract
The work investigates the stress-strain state of wooden frame elements of buildings with close to zero energy consumption. It is substantiated that wooden frame structures are widely considered as an effective alternative to traditional ones (concrete, steel) from the point of view of ecology and energy efficiency. An analysis of architectural, planning and structural solutions of a low-rise residential energy-efficient building Start TM “Business House” of the NZEB standard for industrial production from typical structural elements was carried out. Using the model of the spatial calculation scheme of the building and the “LIRA” software complex, the stress-strain state of the adopted structural solutions of the building was investigated. An analysis of the level of use of the load-bearing properties of the frame elements (stairs of the first and second floors) and the floor truss (lower belt, braces) at maximum forces from calculated load combinations was carried out. A verification calculation of the frame elements: the first and second floor racks, the floor truss elements for the strength of the sections along the normal to the axis of the load, for chipping, stability, as well as for fulfilling the requirements for ultimate flexibility. The calculation data indicate the rational use of the selected cross-section of the first floor racks and floor truss elements. It is proven that the wooden frame provides both the energy efficiency requirements of the NZEB standard and a high level of operational reliability.
References
Kisil M. I. Rozrakhunok derevianykh konstruktsii: metody i normatyvna bazaRozrakhunok derevianykh konstruktsii: metody i normatyvna baza (Calculation of wooden structures: methods and regulatory framework). – Kyiv: LiraSoft, 2018. – 220 p.
Glushko V. I. Budivli klasu NZEB v umovakh Ukrainy: proiektni rishennia (NZEB class buildings in the conditions of Ukraine: design solutions) // Scientific works of ODABA. – 2023. – No. 97. – P. 88–94.
Zhuravlev A. V., Salenko I. S. Rozrakhunok derevianykh ferm v umovakh realnoi ekspluatatsii (Calculation of wooden trusses in conditions of real operation) // Building structures. – 2020. – No. 5. – P. 102–109.
Gustavsson L., Sathre R. Energy and CO₂ analysis of wood substitution in construction // Climatic Change. – 2011. – Vol. 105. – P. 129–153. DOI: 10.1007/s10584-010-9876-8.
Gustavsson L., Pingoud K., Sathre R. Climate change effects of forestry and substitution of carbon-intensive materials and fossil fuels // Renewable and Sustainable Energy Reviews. – 2017. – Vol. 67. – P. 612–624. DOI: 10.1016/j.rser.2016.09.056.
DBN V.2.6-161:2017. Wooden structures. – Kyiv: Minregion of Ukraine, 2017. – 85 p.
DSTU B V.1.2-2:2006. Loads and impacts. Wind loads (analog of EN 1991-1-4:2005 Eurocode 1: Actions on structures – Part 1-4: General actions – Wind actions).
Leskovar V. Ž., Premrov M. Influence of sheathing stiffness on timber frame walls // Construction and Building Materials. – 2015. – Vol. 98. – P. 853–861. DOI: 10.1016/j.conbuildmat.2015.08.108.
Pereginets I.I. Osnovy orhanizatsiï budivnytstva budivel z pozytyvnym enerhobalansom za kryteriiamy tovarnykh odynyts (Fundamentals of the organization of construction of buildings with a positive energy balance based on the criteria of commodity units) // Spatial development. – 2025. – No. 11. – P. 489. – K.: KNUBA. DOI: 10.32347/2786-7269.2025.11.489-509.
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