Mechanical Properties of Welded Deformed Reinforcing Steel Bars
Reinforcement strength, ductility and bendability properties are important components in design of reinforced concrete members, as the strength of any member comes mainly from reinforcement. Strain compatibility and plastic behaviors are mainly depending on reinforcement ductility. In construction p...
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| Format: | Article |
| Language: | English |
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Koya University
2016-05-01
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| Series: | ARO-The Scientific Journal of Koya University |
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| Online Access: | http://aro.koyauniversity.org/article/view/24 |
| _version_ | 1827852709954322432 |
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| author | Ghafur H. Ahmed |
| author_facet | Ghafur H. Ahmed |
| author_sort | Ghafur H. Ahmed |
| collection | DOAJ |
| description | Reinforcement strength, ductility and bendability properties are important components in design of reinforced concrete members, as the strength of any member comes mainly from reinforcement. Strain compatibility and plastic behaviors are mainly depending on reinforcement ductility. In construction practice, often welding of the bars is required. Welding of reinforcement is an instant solution in many cases, whereas welding is not a routine connection process. Welding will cause deficiencies in reinforcement bars, metallurgical changes and re-crystallization of microstructure of particles. Weld metal toughness is extremely sensitive to the welding heat input that decreases both of its strength and ductility. For determining the effects of welding in reinforcement properties, 48 specimens were tested with 5 different bar diameters, divided into six groups. Investigated parameters were: properties of un-welded bars; strength, ductility and density of weld metal; strength and ductility reduction due to heat input for bundled bars and transverse bars; welding effect on bars’ bending properties; behavior of different joint types; properties of three weld groove shapes also the locations and types of failures sections. Results show that, strength and elongation of the welded bars decreased by (10-40%) and (30-60%) respectively. Cold bending of welded bars and groove welds shall be prevented. |
| first_indexed | 2024-03-12T10:54:10Z |
| format | Article |
| id | doaj.art-179d9fab8d1247908f4d64c9dae07bf6 |
| institution | Directory Open Access Journal |
| issn | 2410-9355 2307-549X |
| language | English |
| last_indexed | 2024-03-12T10:54:10Z |
| publishDate | 2016-05-01 |
| publisher | Koya University |
| record_format | Article |
| series | ARO-The Scientific Journal of Koya University |
| spelling | doaj.art-179d9fab8d1247908f4d64c9dae07bf62023-09-02T06:34:27ZengKoya UniversityARO-The Scientific Journal of Koya University2410-93552307-549X2016-05-0131283910.14500/aro.1005921Mechanical Properties of Welded Deformed Reinforcing Steel BarsGhafur H. Ahmed0Department of Highway Engineering, Technical Engineering College, Hawler Polytechnic University, Kurdistan Region.Reinforcement strength, ductility and bendability properties are important components in design of reinforced concrete members, as the strength of any member comes mainly from reinforcement. Strain compatibility and plastic behaviors are mainly depending on reinforcement ductility. In construction practice, often welding of the bars is required. Welding of reinforcement is an instant solution in many cases, whereas welding is not a routine connection process. Welding will cause deficiencies in reinforcement bars, metallurgical changes and re-crystallization of microstructure of particles. Weld metal toughness is extremely sensitive to the welding heat input that decreases both of its strength and ductility. For determining the effects of welding in reinforcement properties, 48 specimens were tested with 5 different bar diameters, divided into six groups. Investigated parameters were: properties of un-welded bars; strength, ductility and density of weld metal; strength and ductility reduction due to heat input for bundled bars and transverse bars; welding effect on bars’ bending properties; behavior of different joint types; properties of three weld groove shapes also the locations and types of failures sections. Results show that, strength and elongation of the welded bars decreased by (10-40%) and (30-60%) respectively. Cold bending of welded bars and groove welds shall be prevented.http://aro.koyauniversity.org/article/view/24deformed bar, heat input, strength and ductility reduction, welding, weld groove |
| spellingShingle | Ghafur H. Ahmed Mechanical Properties of Welded Deformed Reinforcing Steel Bars ARO-The Scientific Journal of Koya University deformed bar, heat input, strength and ductility reduction, welding, weld groove |
| title | Mechanical Properties of Welded Deformed Reinforcing Steel Bars |
| title_full | Mechanical Properties of Welded Deformed Reinforcing Steel Bars |
| title_fullStr | Mechanical Properties of Welded Deformed Reinforcing Steel Bars |
| title_full_unstemmed | Mechanical Properties of Welded Deformed Reinforcing Steel Bars |
| title_short | Mechanical Properties of Welded Deformed Reinforcing Steel Bars |
| title_sort | mechanical properties of welded deformed reinforcing steel bars |
| topic | deformed bar, heat input, strength and ductility reduction, welding, weld groove |
| url | http://aro.koyauniversity.org/article/view/24 |
| work_keys_str_mv | AT ghafurhahmed mechanicalpropertiesofweldeddeformedreinforcingsteelbars |