STRESS-STRAIN STATE AND STRENGTH CALCULATIONS OF DAMAGED STRUCTURES USING 'LIRA − SAPR' SOFWARE TOOLS
| Autor: | M.S. BARABASH, N.O. KOSTYRA, A.V. TOMASHEVSKYI |
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| Rok vydání: | 2022 |
| Zdroj: | Ukrainian Journal of Civil Engineering and Architecture. :7-14 |
| ISSN: | 2710-0375 2710-0367 |
| DOI: | 10.30838/j.bpsacea.2312.220222.7.827 |
| Popis: | This paper presents the results of inspection and assessment of the bearing capacity of damaged reinforced concrete beams of a multi-storey garage. Bending process of normal cross-sections of damaged beams was modeled using a nonlinear deformation model of the system “Cross-Section Designer” by “LIRA−SAPR” software package. The nonlinear deformation model, realized in the most general numerical form, allows to process various forms and configurations of reinforcement of sections with various nonlinear stress-strain diagrams of materials, which allows to model thus damaged sections of structures in operation, considering corrosion effects. The paper presents the results of numerical modeling of the damaged cross-section using provided technology in order to calculate bearing capacity decrease percent of damaged structure in comparison with its initial state. It also demonstrates a method of applying this technology for the definition of cross-sectional parameters during reconstruction in order to restore structure bearing capacity. |
| Databáze: | OpenAIRE |
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