Determination of remaining resource of constructions of buildings after different influences
DOI:
https://doi.org/10.15587/2312-8372.2019.181523Keywords:
structures of buildings and structures, defects and damages, inspection, structural analysis, residual lifeAbstract
The object of research is the residual resource of the structures of buildings and structures after various influences. The residual resource is the total operating time of the object from the moment of monitoring its technical condition to the transition to the limit state.
The calculation methods recommended by the current regulatory documents of Ukraine do not allow predicting the probability of failures, an increase in the number of structural defects and deformations over time and really assessing the possibility of further operation in such conditions. One of the most problematic places is determination of the technical condition of structures of buildings and structures operating under various influences (in an aggressive environment, with forced displacements of supports, possible high-temperature influences, etc.).
It is shown that the residual life of the structures of buildings and structures that suffered damage during operation after various influences can be reassigned due to reinforcement. In this case, the main question remains the determination of the physical and mechanical characteristics of the materials that were used in the manufacture of structures, as well as the calculation of structures for the justified purpose of the cross sections of reinforcing elements. Characteristics of materials are determined during the observation. During the observation, various methods were used to determine the physical and mechanical characteristics of structural materials (concrete, reinforcement, steel, brickwork, etc.), which are usually non-destructive. Non-destructive methods can be applied in cases where this is possible under the conditions of operation of structures, for example, the removal of fragments of metal, reinforcement or concrete from lightly loaded elements.
The possibility of reassigning the residual resource is determined by comparing the values of the bearing capacity of the structures with acting values. The bearing capacity of the structures is determined using the values of the characteristics of materials and parameters (cross-sectional dimensions, geometric dimensions taking into account corrosion wear, etc.), which were obtained during the observation. The magnitudes of the forces acting in the structures of buildings and structures are determined by modeling their work using the finite element method and modern computing systems. Thanks to this procedure, it is possible to obtain the efforts that could arise in the structures of the building and reinforcement. Thanks to this, it is possible to make a decision on the reassignment of the remaining life of the structures, that is, the possibility of further operation, the need for reinforcement or replacement.
References
- DSTU-N B V.1.2-18:2016. Nastanova shchodo obstezhennya budivel' i sporud dlya vyznachennya ta otsinky yikh tekhnichnoho stanu (2017). Kyiv: DP «UkrNDNTs», 45.
- DSTU-N B V.1.2-17:2016. Nastanova shchodo naukovo-tekhnichnoho monitorinhu budivel' i sporud (2017). Kyiv: DP «UkrNDNTs», 38.
- DBN В.1.2-14:2018. Sistema zabezpechennia nadiinosti ta bezpeki budivelnih ob'ektiv. Zagalni principi zabezpechennia nadijnosti ta konstruktivnoi bezpeki budivel', sporud, budivelnih konstrukcii ta osnov (2018). Kyiv: Міnrehion Ukrayiny, 30.
- Holodnov, O., Gordiuk, M., Tkachuk, I., Semynoh, M. (2015). Opredelenie ostatochnoho resursa izhibaemih elementov posle razlichnih vozdeistvii. Zbirnyk naukovykh prats' Ukrayins'koi dergavnoi akademii zaliznichnogo transportu, 151, 94–102.
- Otroch, Yu., Ivanov, А., Holodnov, O. (2011). Komplex vzaemozviazanih zahodiv shchodo viznachennia parametriv naprugeno-deformovanogo i tehnichnogo stanu konstrukcii pri riznih vplivah. Zbirnyk naukovykh prats' Ukrayins'koho instytutu stalevykh konstruktsiy imeni V. M. Shymanovs'koho, 8, 98–109.
- Larocca, A. P. C. (2014). Dynamic Monitoring vertical Deflectionof Small Concrete Bridge Using Conventional Sensors And 100 Hz GPS Receivers – Preliminary Results. IOSR Journal of Engineering, 4 (9), 9–20. doi: http://doi.org/10.9790/3021-04920920
- Gaidaichuk, V., Kotenko, K., Kedyk, I. (2018). Development of theoretical and experimental dynamic monitoring of large-scale building structure. Technology Audit and Production Reserves, 1 (2 (39)), 38–45. doi: http://doi.org/10.15587/2312-8372.2018.123463
- Wendner, R., Hubler, M. H., Bažant, Z. P. (2015). Statistical justification of model B4 for multi-decade concrete creep using laboratory and bridge databases and comparisons to other models. Materials and Structures, 48 (4), 815–833. doi: http://doi.org/10.1617/s11527-014-0486-1
- Abdel-Fttah, A., Said, M., Salah, A. (2016). Nonlinear finite element analysis for reinforced concrete slabs under punching loads. International Journal of Civil Engineering and Technology, 7 (3), 392–397.
- Hubler, M. H., Wendner, R., Bažant, Z. P. (2015). Statistical justification of Model B4 for drying and autogenous shrinkage of concrete and comparisons to other models. Materials and Structures, 48 (4), 797–814. doi: http://doi.org/10.1617/s11527-014-0516-z
- Balomenos, G. P., Genikomsou, A. S., Polak, M. A., Pandey, M. D. (2015). Efficient method for probabilistic finite element analysis with application to reinforced concrete slabs. Engineering Structures, 103, 85–101. doi: http://doi.org/10.1016/j.engstruct.2015.08.038
- Fraile-Garcia, E., Ferreiro-Cabello, J., Martinez-Camara, E., Jimenez-Macias, E. (2016). Optimization based on life cycle analysis for reinforced concrete structures with one-way slabs. Engineering Structures, 109, 126–138. doi: http://doi.org/10.1016/j.engstruct.2015.12.001
- Lantsoght, E. O. L., van der Veen, C., Walraven, J., de Boer, A. (2015). Experimental investigation on shear capacity of reinforced concrete slabs with plain bars and slabs on elastomeric bearings. Engineering Structures, 103, 1–14. doi: http://doi.org/10.1016/j.engstruct.2015.08.028
- Einpaul, J., Ospina, C. E., Fernández Ruiz, M., Muttoni, A. (2016). Punching shear capacity of continuous slabs. ACI Structural Journal, 113 (4), 861–872. doi: http://doi.org/10.14359/51688758
- Caldas, R. B., Fakury, R. H., Sousa Jr., J. B. M. (2014). Finite element implementation for the analysis of 3D steel and composite frames subjected to fire. Latin American Journal of Solids and Structures, 11 (1), 1–18. doi: http://doi.org/10.1590/s1679-78252014000100001
- Vatulia, G., Orel, E., Kovalov, M. (2014). Evaluation of steel-concrete beams fire resistance with the selection of effective fire protection. Proceedings of the 6th International Conference on Dynamics of Civil Engineering and Transport Structures and Wind Engineering. Zilina, 327–331.
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Copyright (c) 2019 Mykola Gordiuk, Mykola Semynoh, Oleksandr Holodnov, Igor Tkachuk, Boris Ivanov
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