Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements
The article is devoted to the research of application of reinforcing steel of a new spiral profile for reinforcement of reinforced concrete constructions. The article presents the results of experimental studies of prism specimens with screw four-row reinforcement with diameters of 20 and 32 mm of c...
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| Format: | Article |
| Language: | English |
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Moscow State University of Civil Engineering (MGSU)
2023-07-01
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| Series: | Железобетонные конструкции |
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| Online Access: | https://www.g-b-k.ru/jour/article/view/22 |
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| author | Galina E. Okolnikova Georgy I. Tikhonov |
| author_facet | Galina E. Okolnikova Georgy I. Tikhonov |
| author_sort | Galina E. Okolnikova |
| collection | DOAJ |
| description | The article is devoted to the research of application of reinforcing steel of a new spiral profile for reinforcement of reinforced concrete constructions. The article presents the results of experimental studies of prism specimens with screw four-row reinforcement with diameters of 20 and 32 mm of class Av600P and concrete of classes B30 and B60 under static compression loading. The purpose of the research was to justify the introduction into practice of the construction of an innovative screw reinforcement profile, which will develop the ideas and principles that have become the basis for the widely used six-row A500SP profile, whose design solution (the absence of longitudinal ribs with the arrangement of transverse protrusions in four rows with the possible formation of a two-start screw thread by them) makes it possible to significantly increase the rejection minimum value of the Röhm criterion (fR ≥ 0.075), which characterizes and determines the strength and deformability of the adhesion of reinforcement to concrete, which determine the strength and crack resistance of reinforced concrete structures, and, consequently, their operational safety and reliability. The coupling joints of screw reinforcement can significantly speed up the process of reinforcing work at the construction site as a result of replacing labor-intensive and expensive welded joints. The results of the research showed the effectiveness of application of new screw reinforcement of the Av600P class for reinforcing compressed reinforced concrete elements made of concrete of classes B30÷B60 with coupling threaded contact, partially contact and non-contact butt joints of the reinforcement. |
| format | Article |
| id | doaj-art-5f34e616363a48b3b7fbd06313083f31 |
| institution | Kabale University |
| issn | 2949-1622 2949-1614 |
| language | English |
| publishDate | 2023-07-01 |
| publisher | Moscow State University of Civil Engineering (MGSU) |
| record_format | Article |
| series | Железобетонные конструкции |
| spelling | doaj-art-5f34e616363a48b3b7fbd06313083f312025-02-06T07:09:54ZengMoscow State University of Civil Engineering (MGSU)Железобетонные конструкции2949-16222949-16142023-07-0133324810.22227/2949-1622.2023.3.32-4821Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete ElementsGalina E. Okolnikova0Georgy I. Tikhonov1Peoples' Friendship University of Russia (RUDN University); Moscow State University of Civil Engineering (National Research University) (MGSU)RUDN University; JSC "SIC "Construction"The article is devoted to the research of application of reinforcing steel of a new spiral profile for reinforcement of reinforced concrete constructions. The article presents the results of experimental studies of prism specimens with screw four-row reinforcement with diameters of 20 and 32 mm of class Av600P and concrete of classes B30 and B60 under static compression loading. The purpose of the research was to justify the introduction into practice of the construction of an innovative screw reinforcement profile, which will develop the ideas and principles that have become the basis for the widely used six-row A500SP profile, whose design solution (the absence of longitudinal ribs with the arrangement of transverse protrusions in four rows with the possible formation of a two-start screw thread by them) makes it possible to significantly increase the rejection minimum value of the Röhm criterion (fR ≥ 0.075), which characterizes and determines the strength and deformability of the adhesion of reinforcement to concrete, which determine the strength and crack resistance of reinforced concrete structures, and, consequently, their operational safety and reliability. The coupling joints of screw reinforcement can significantly speed up the process of reinforcing work at the construction site as a result of replacing labor-intensive and expensive welded joints. The results of the research showed the effectiveness of application of new screw reinforcement of the Av600P class for reinforcing compressed reinforced concrete elements made of concrete of classes B30÷B60 with coupling threaded contact, partially contact and non-contact butt joints of the reinforcement.https://www.g-b-k.ru/jour/article/view/22screw reinforcementreinforced concretetwo-start screw threadcoupling jointscompressive strength |
| spellingShingle | Galina E. Okolnikova Georgy I. Tikhonov Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements Железобетонные конструкции screw reinforcement reinforced concrete two-start screw thread coupling joints compressive strength |
| title | Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements |
| title_full | Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements |
| title_fullStr | Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements |
| title_full_unstemmed | Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements |
| title_short | Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements |
| title_sort | assessment of effectiveness of av600p screw reinforcement in compressed reinforced concrete elements |
| topic | screw reinforcement reinforced concrete two-start screw thread coupling joints compressive strength |
| url | https://www.g-b-k.ru/jour/article/view/22 |
| work_keys_str_mv | AT galinaeokolnikova assessmentofeffectivenessofav600pscrewreinforcementincompressedreinforcedconcreteelements AT georgyitikhonov assessmentofeffectivenessofav600pscrewreinforcementincompressedreinforcedconcreteelements |