The article is devoted to the calculated regulation of the stress deformation state (SDS) of combined steel trusses, which allows to reduce the efforts in some sections of the structure by increasing the efforts in other and design evenly stressed structures as the most rational systems. It is shown that the calculated method of SDS regulation makes it possible to reduce steel consumption by up to 34%. Four methods of calculated SDS regulation are proposed. The advantages of combined structures are given: the concentration of materials and the possibility of designing them as low-element.
As shown in the example, for the quantitative criterion of quality it is possible to use rationally the maximum potential energy of deformation. Dependences for calculation of the maximum potential energy of compressed stretched, and compressed-bent elements of rod-bearing steel structures are given.
Hohol, M. V. (2018). Tension regulation in steel combined structures [monograph]. Kyiv: Stal(in Ukrainian).
Hohol, M. V. (2014). Calculation and rational design combined metal structures.Modern industrial and civil construction. (Vol. 10,pp. 79-90). Makiivka: DonNACEA (in Ukrainian).
Hohol, M. V., Ordon-Beska, B. (2015). Reduction of material consumption of combined metal structures. Budownictwo o zoptymalizowanym potencjale energetycznym, 1(15), 61-69 (in Russian).
Gogol, M., Zygun, A., Maksiuta, N. (2018). New effective combined steel structures. International Journal of Engineering and Technology. (Vol 7, pp. 343-348). DOI:10.14419/ijet.v7i3.2.14432
https://doi.org/10.14419/ijet.v7i3.2.14432
Permyakov, V. O., Hohol, M. V., (2004). The problem of regulating the stress-strainstate of flat rod metal structures. Theory and Building Practice, 495, 154-157 (in Ukrainian).
Permyakov, V. O., Hohol, M. V., & Peleshlo, I. D. (2007). Combined metal structures with regulation and their optimization. International scientific and practical conference Science and Innovations in Modern Construction (pp. 17-19), (in Russian).
Shymanovskiy, O. V., Hohol, M. V., (2018). New approach to effective steel combine truss design. 1st International Scientific and Practical Conference Technology, Engineering and Science - 2018. London, United Kingdom, (pp. 16-18).
Yuriev, A. (2013). Variational formulations of structural synthesis problems. Collection of scientific papers Sworld 4(14), 67-70 (in Russian).
Ruiz-Teran, A., Aparicio, A. (2010). Developments in under-deck and combined cable-stayed bridges. Bridge engineering, 163, 67-78 https://doi.org/10.1680/bren.2010.163.2.67
https://doi.org/10.1680/bren.2010.163.2.67
Lavrinenko, L., Zotina, A. (2019). Effective parameters of low-element sprung trusses with the use of I-beams with corrugated walls. Building structures. Theory and practice, 4, 56-69
https://doi.org/10.32347/2522-4182.4.2019.56-69
Madrazo-Aguirre, F., Wadee, M., Ruiz-Teran, A. (2015). Non-linear stability of under-deck cable-stayed bridge decks. International Journal of Non-Linear Mechanics 77, 28-40
https://doi.org/10.1016/j.ijnonlinmec.2015.07.001
Bendsoe, M., Sigmund, O. (2003). Topology Optimization. Theory, Methods and Applications. Springer Verlag, Berlin Heidelberg https://doi.org/10.1007/978-3-662-05086-6
https://doi.org/10.1007/978-3-662-05086-6
Amir, O., Mass, Y., (2016). Topology optimization for staged construction with applications to additive manufacturing, Environmental Engineering, The European Conference on Computational Optimization, EUCCO 2016. Leuven, Belgium
Shmukler, V. S., (2017). New energy principles of rationalization of structures. Collection of scientific works of the Ukrainian State University of Railway Transport, 167, 54-69.
https://doi.org/10.18664/1994-7852.167.2017.97206
Ruiz-Teran, A. M., & Aparicio, A. C. (2008). Structural behaviour and design criteria of under-deck cable-stayed bridges and combined cable-stayed bridges. Part 1: Single-span bridges. Canadian Journal of Civil Engineering, 35(9), 938-950. https://doi.org/10.1139/L08-033
https://doi.org/10.1139/L08-033