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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BOS5-0021-0022

Czasopismo

Journal of Achievements in Materials and Manufacturing Engineering

Tytuł artykułu

Welding of girders to insert plates of composite steel-concrete structure

Autorzy Klimpel, A.  Lisiecki, A.  Szlek, J. 
Treść / Zawartość http://www.journalamme.org
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Purpose: of this paper: A study of influence of preheating and MMA welding technique of tee-joints of plate girders to insert plates of a composite steel-concrete structure of the telecommunication tower, on the properties and quality of the concrete in the region of the insert plate has been carried out. Design/methodology/approach: Studies of thermo-mechanical phenomena during manual arc welding MMA of tee-joints between plate girders and insert plates were carried out to identify possible sources of the concrete damage due to high welding temperature and stresses. Findings: It was shown that MMA welding at vertical-up position, by a rutile coated electrode of diameter 3,2 [mm], at welding current 110-120 [A], of the butt welds of tee-joints of girders and the insert plate does not cause any harmful and damaging effect to concrete, which temperature in a region of the contact with the bottom surface of the insert plate does not exceed 240 [degrees centigrade] during full cycle of welding. Tensile and compression stresses of concrete are transmitted mainly by anchoring bars, fixed in concrete and also by reinforcing fabric of concrete, and do not cause any cracks of concrete. Research limitations/implications: To achieve more consistent results of the numerical analysis of stresses and deformation distribution in the insert plate with experimental results, it is necessary to calculate plastic deformation of materials and also take into consideration nonlinear change of yield point (plasticity) as a function of temperature. Practical implications: The technology was applied for welding of the girders to insert plates of the telecommunication tower in Kuwait. Originality/value: Welding procedure specification ensuring high quality of the welded joints of girders and insert plate of composite steel-concrete structure.
Słowa kluczowe
PL spawanie   MMA   spawanie elektrodami otulonymi   wkładka   płytka   beton wzmacniany kompozytem  
EN welding   MMA welding   insert plate   composite reinforced concrete  
Wydawca International OCSCO World Press
Czasopismo Journal of Achievements in Materials and Manufacturing Engineering
Rocznik 2007
Tom Vol. 24, nr 1
Strony 397--404
Opis fizyczny Bibliogr. 15 poz., fot., rys., tab.
Twórcy
autor Klimpel, A.
autor Lisiecki, A.
autor Szlek, J.
Bibliografia
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Kolekcja BazTech
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