Ingeniería Civil y Mecánica

Permanent URI for this communityhttp://repositorio.uta.edu.ec/handle/123456789/898

Browse

Filters

20251

Settings

Author: search.filters.author.López Urbina Lenin AndréSubject: search.filters.subject.ASTM A706

Search Results

Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Análisis de la soldabilidad de los procesos SMAW, GMAW, GTAW y FCAW, de varillas con resaltes ASTM A706 grado 60 y su repercusión en las propiedades mecánicas de la unión CJP.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas., 2025) López Urbina Lenin André; Guamanquispe Toasa Jorge Patricio
    This research evaluates the most efficient welding process for joining ASTM A706 Grade 60 deformed reinforcing bars, aiming to optimize structural integrity, construction efficiency, and joint durability in civil engineering projects. Welding is proposed as an alternative to wire-tying in bar splicing, optimizing the excessive use of steel and the associated costs. Additionally, it prevents unnecessary increases in structural sections and handling challenges in confined spaces, especially with largediameter bars. In This way, the study seeks to improve structural performance and construction feasibility in civil engineering projects. The weldability of ASTM A706 Grade 60 bars was analyzed using the SMAW, GMAW, GTAW, and FCAW processes, in accordance with the AWS D1.4 code, evaluating their performance through destructive and non-destructive tests. Visual inspections and dye penetrant tests were used to detect surface discontinuities, while UNIVERSIDAD TÉCNICA DE AMBATO FACULTAD DE INGENIERÍA CIVIL Y MECÁNICA MAESTRÍA EN INGENIERÍA CIVIL CON MENCIÓN EN ESTRUCTURAS METÁLICAS THEME: “GTAW Y FCAW, OF RODS WITH HIGHLIGHTS ASTM A706 DEGREE 60 AND ITS IMPACT ON THE MECHANICAL PROPERTIES OF THE CJP UNION”. or tying 1t destructive xXviill xxix mechanical tests such as tensile testing, macrography, and metallography analyzed the strength, ductility, and microstructure of the welded joints. The results confirmed that the GMAW, FCAW, and SMAW processes meet the strength and quality standards required by the AWS D1.4 code, whereas the GTAW process exhibited deficiencies in mechanical performance due to alterations microstructure, such as variations in the distribution pearlite and ferrite, as well as grain size. The cost-benefit analysis determined that the GMAW, FCAW, and SMAW welding processes offer greater efficiency and lower cost per welded joint, optimizing the relationship between investment and structural performance. In conclusion, the implementation of welding in deformed steel reinforcing bars represents a viable and advantageous alternative to traditional lap splice with wire ties, improving the quality and safety of structures.