Collection of scientific papers "Dorogi i Mosti" (Roads and Bridges)
ISSN 2524-0994 (Print)
ISSN 2786-488X (Online)
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Experimental determination of remaining stress condition of preliminary stressed metallic beam

published:
Number: Issue 9(2008)
Section: Without a section
DOI:
The page spacing of the article: 55-59
Keywords: double tee beam, preliminary stress, stretching of lower belt, remaining tension, destroying method.
How to quote an article: A. Golodnov Experimental determination of remaining stress condition of preliminary stressed metallic beam. Dorogi і mosti [Roads and bridges]. Kyiv, 2008. 9. P. 55-59 [in Russian]

Authors

JSC UkrndiproektStalonstruktsiya them. V.M. Shimanovsky, Kyiv, Ukraine

Summary

In the article it is presented the results of researches of remaining stress condition of composite weld-fabricated double tee-beam, preliminary stressed by stretching lower belt. Such constructions are made by welding (in general case) to initial tee of lower belt, which before welding of half-length joints is warmed up by gases torches to set temperature. Lower belt is accepted from high hard steel and after cooling-down there are remaining stretching tensions in him. Experimental researches were executed by destroying method. For this purpose, in the places of determination of deformation on prepared surface on both sides of the line of cutting the lines of tensor-resistors were glued on, and after that beam cutting was whereupon executed by handsaw.

References

1. А.С. 1527393 СССР, Е04 С 3/10. Способ изготовления предварительно напряженной металлической балки / А.И. Голоднов, Е.П. Лукьяненко, И.И. Набоков. – Опубл. 07.12.1989, бюл. № 45.
2. Методические рекомендации по применению облегченных предварительно напряженных сварных двутавров для реконструкции промышленных предприятий / НИИСП Госстроя УССР; Сост. И.И. Набоков, А.И. Голоднов, Е.П. Лукьяненко и др. – К.: НИИСП, 1988. – 45 с.

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