In this article, a comparative assessment of the technical and economic efficiency of rational combined steel trusses with typical trusses according to DSTU is considered. New rational constructive combined forms of covering systems (roof trusses) have been developed for spans of 18, 24 and 30 m, with less material consumption and labor intensity compared to existing analogues. It is shown that the mass of such rational combined steel trusses with a span of 18 m is less than a typical one by 13% to 16.5% depending on the value of load, for a combined truss with a span of 24 m the mass is less by 20.5% to 25%, and for a 30 m - from 12.5% to 17%. The results of the evaluation of the technical and economic efficiency are presented. The main criterion for the economic efficiency of constructions is general costs. A comparison of the technical and economic efficiency proves that our proposed option provides a significant saving of material and labor resources.Widespread implementation can provide a significant economic effect, which is important in the conditions of post-war reconstruction of Ukraine.
Brütting J., Desruelle J., Senatore G., Fivet C. (2019). Design of truss structures through reuse. In Structures. Journal of the international association for shell and spatial structures: j. IASS volume 18, pages 128-137. Elsevier. https://doi.org/10.1016/j.istruc.2018.11.006
https://doi.org/10.1016/j.istruc.2018.11.006
Cazacu R., Grama L. (2014). Steel truss optimization using genetic algorithms and FEA . Procedia Technology. Volume 12 , Pages 339-346. https://doi.org/10.1016/j.protcy.2013.12.496
https://doi.org/10.1016/j.protcy.2013.12.496
Gogol M. V. (2018). Stress regulation in steel combined structures: Monograph (Kyiv: Steel). P. 223. https://bit.ly/3FBL97l
Gogol M., Zygun, A., Maksiuta, N. (2018) New effective combined steel structures. International Journal ofEngineering and Technology. 7, 3.2, 343-348. https://doi.org/10.14419/ijet.v7i3.2.14432
https://doi.org/10.14419/ijet.v7i3.2.14432
Hohol M., Sydorak D. (2023). New design form of steel combined roof trusses. Theory and Building Practice.5(1), 21-27. https://doi.org/10.23939/jtbp2023.01.021
https://doi.org/10.23939/jtbp2023.01.021
Hohol M., Sydorak D. (2022). Structural efficiency of steel combined trusses. Theory and Building Practice. 4(2), 58-67.https://doi.org/10.23939/jtbp2022.02.058
https://doi.org/10.23939/jtbp2022.02.058
Janušaitis R., Keras V., Mockienė J. (2012). Development of methods for designing rational trusses. Journal of CivilEngineering and Management 9(3):192-197 https://doi.org/10.3846/13923730.2003.10531325
https://doi.org/10.3846/13923730.2003.10531325
Lavrinenko L., Zotina A.(2019). Effective parameters of low-element sprung trusses with the use of I-beams withcorrugated walls. Building structures. Theory and practice 4, 56-69. https://doi.org/10.32347/2522-4182.4.2019.56-59
https://doi.org/10.32347/2522-4182.4.2019.56-69
Michael de Bouw , Ine Wouters, Lauriks Leen.(2009). Structural analysis of two metal de Dion roof trusses inBrussels model schools. Conference: STREMAH 2009. Volume: 109. Pages 121-130. DOI:10.2495/STR090111.
https://doi.org/10.2495/STR090111
Panagiotis A. Makris, Christopher G. Provatidis. (2002). Weight minimisation of displacement-constrained trussstructures using a strain energy criterion. Volume 191, Issues 19-20, 1 March 2002, Pages 2187-2205.https://doi.org/10.1016/S0045-7825(01)00381-4.
https://doi.org/10.1016/S0045-7825(01)00381-4
Pichugin S.F., Chichulin .V P., Chichulina K.V. (2014). Effective designs of metal trusses. YuriyKondratyuk Poltava Polytechnic. P. 225-227. http://reposit.nupp.edu.ua › bitstream › PoltNTU
Shymanovskiy, O. V., Hohol, M. V. (2018). New approach to effective steel combine truss design. 1st InternationalScientific and Practical Conference Technology, Engineering and Science - 2018. London, United Kingdom, (pp. 16-18). https://ssc.nupp.edu.ua/en/conference/ICTES-2018
Shmukler, V. S. (2017). New energy principles of rationalization of structures. Collection of scientific works of theUkrainian State University of Railway Transport, 167, 54-69.https://doi.org/10.18664/1994-7852.167.2017.97206.
https://doi.org/10.18664/1994-7852.167.2017.97206
Pichugin S., Hasenko A., Dmytrenko A., Kramar A. (2013).Technical and economic comparison of light steel structures covering the summer stage. Resource-economic materials, structures, buildings and structures, 25, 576-582. http://nbuv.gov.ua/UJRN/rmkbs_2013_25_80
Zinkova V.A. (2014). Improving tubular trusses using non-shaped nodal connections: dissertation. ...cand. tech.Sciences: 05.23.01 / Victoria Anatolevna Zinkova. - Belgorod. - 138 p. bit.ly/3PMtZvy
Brütting J., Desruelle J., Senatore G., Fivet C. (2019). Design of truss structures through reuse. In Structures. Journal of the international association for shell and spatial structures: j. IASS. Vol. 18. Pp. 128-137. Elsevier. https://doi.org/10.1016/j.istruc.2018.11.006
https://doi.org/10.1016/j.istruc.2018.11.006
Fang S.-E., Wu C., Zhang X.-H., Zhang L.-S., Wang Z.-B., Zeng Q.-Y. (2021). Progressive Collapse Safety Evaluation of Truss Structures Considering Material Plasticity. Materials 2021, 14, 5135. https://doi.org/10.3390/ma14185135.
https://doi.org/10.3390/ma14185135
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://dx.doi.org/10.1016/j.ijnonlinmec.2015.07.001
https://doi.org/10.1016/j.ijnonlinmec.2015.07.001
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 DOI:10.1007/s00158-017-1837-7
https://doi.org/10.1007/s00158-017-1837-7