Operation of a steel fiber reinforced concrete highway gutter drain on the roads during the short repeated loadings with different levels of effort
DOI:
https://doi.org/10.30977/BUL.2219-5548.2019.86.1.181Ключові слова:
steel fiber reinforced concrete, SFRC, steel fiber, water drainage, road gutter, durability, fracture toughnessАнотація
The results of experimental studies of deformations of steel fiber reinforced concrete highway gutter drain under short-term reloads with different levels of effort ηcyc = 0.3; 0.5; 0.7 are given. Methods of experimental research are presented. Goal. The purpose of this article is to elucidate the results of the conducted research on determining the deformability of steel fiber reinforced concrete highway gutter drain at short-term re-loads with different levels. Methodology. For the planned study, steel fiber reinforced concrete highway gutter drains with a percentage of reinforcement μ = 1% were manufactured; μ = 2% and μ = 3%. Each type of sample is affected by short-term reloads with different loading levels: η = 0.3; η = 0,5 and η = 0,7 with an effort step of 8 - 12% of the destructive force. During the study, the bottom of the gutter rested on a solid base. The hydraulic press of PSU-125 was used for this purpose. To improve the accuracy of the measurement of the active force, an exemplary tested dynamometer is used, which makes it possible to measure the load with an accuracy of 50 N. The load is created by a hydraulic jack. Results. At repeated loads, the level of which does not exceed 70% of the destructive ones, the SFRC gutter works almost elastically. Increasing the percentage of reinforcement with steel fibers from μ = 1% to μ = 2% gives an increase in bearing capacity (on average) for gutter with SFRC at repeated low-cycle loads up to 40%, and from μ = 1% to μ = 3% gives an increase in carrying capacity of up to 58%.Посилання
Babych Ye.M., Kochkarov D.V., Filipchuk S.V. Doslidzhennia oporu vysokomitsnykh betoniv ta fibrobetoniv probyvanniu [Investigation of resistance of high durable concrete and fiber-reinforced concrete penetration] / Ye.M. Babych, // Resursoekonomni materialy, konstruktsii, budivli ta sporudy. - 2017. - Vyp. 34. - S. 71-85.
Babych Ye.M., Andrijchuk O.V., Yasiuk I.M. Vykorystannia stalefibrobetonu dlia dorozhno-transportnykh sporud [Use steel fiber reinforced concrete for road constructions] // Mistobuduvannia ta terytorialne planuvannia. Naukovo-tekhnichnyj zbirnyk. – Kуiv: KNUBA, 2014. –Vyp. № 54. – S. 33– 41.
Babych Ye.M., Andrijchuk O.V. Proektuvannia ta vyhotovlennia beznapirnykh trub iz stalefibrobetonu [Design and manufacture of non-pressure pipes made of steel fiber reinforced concrete] // Rekomendatsii. – Lutsk: Lutskyj NTU, 2012. – 32 s.
Borysiuk O.P., Ziatiuk Yu.Yu. Napruzheno-deformovanyj stan zalizobetonnykh balok pidsylenykh pid navantazhenniam stalefibrobetonom i kompozytamy pry dii malotsyklovykh navantazhen [reinforced concrete beams stress-strain strengthened under loading steelfiberconcrete and composites at action lowcycle load ] // Resursoekonomni materialy, konstruktsii, budivli ta sporudy: Zb. nauk. prats. – Rivne: NUVHP, 2016. – Vyp. 33. – S. 298–303.
Bilozir V.V. Vplyv nyzkhidnoi vitky diahramy deformuvannia stalefibrobetonu za roztiahu na nesuchu zdatnist balok [Influence of descending branch of diagram of deformation of steel fibre concrete at tension on bearing strength of beams] // Visnyk Lvivskoho natsionalnoho ahrarnoho universytetu. Seriia: Arkhitektura i silskohospodarske budivnytstvo. – Dubliany: LNAU, 2015. – Vyp. 16. – S. 60–64.
Opanasenko E.V., Berestianskaia A.A. Vydy fybrovoho armyrovanyia [types fiber reinforcement] // Resursoekonomni materialy, konstruktsii, budivli ta sporudy. – 2015. – Vyp. 30. – S. 57–64.
Andrijchuk O.V., Babych Ye.M. Stalefibrobetonni beznapirni truby [Steel fiber reinforced concrete non-pressure pipes]: monohrafiia. – Lutsk: RVV Lutskoho NTU, 2012. – 150 s.
Andrijchuk O.V., Yasiuk I.M. Vyhotovlennia prydorozhnikh lotkiv vodovidvodu zi stalefibrobetonu [making of wayside trays of overflow-pipe with stell-fibre-concrete] // Naukovi notatky: zbirnyk naukovykh prats. – Lutsk: Lutskyj NTU, 2014. – Vyp. 45. – S. 7–14.
Andrijchuk O.V., Yasiuk I.M. Metodyka eksperymentalnoho doslidzhennia dyspersno-armovanykh prydorozhnikh lotkiv vodovidvedennia [methodology of experimental research dis-persed-reinforced trays of roadside drainage] // Visnyk Odeskoi natsionalnoi akademii budivnytstva ta arkhitektury: zbirnyk naukovykh prats. – Odesa: ONABA, 2015. – Vyp. 58. – S. 11–18.
Andrijchuk O.V., Yasiuk I.M. Doslidzhennia mitsnisnykh kharakterystyk stalefibrobetonnykh lotkiv vodovidvedennia [study durable characteristics steel fiber concrete trays sewage systems] // Resursoekonomni materialy, konstruktsii, budivli ta sporudy: naukovyj zbirnyk. – Rivne: NUVHP, 2015. Vyp. 31 – S. 371–378.
