Choice of methods for strengthening of reinforced-concrete columns in the reconstruction conditions of the operating industrial enterprises
S. V. Kozhemjaka, D. O. Khokhryakova, G. V. Krupenchenko
Donbas National Academy of Civil Engineering and Architecture
Annotation: In this article there is represented the choice of a rational method for strengthening of the reinforced concrete columns, allowing to lower and cost and laboursome works. The analysis of works production allowed to find out that in practice the following methods of strengthening of reinforced concrete columns are applied: arrangement of the reinforced concrete iron ring and unilateral growing of section, strengthening by concrete mixing spraying and steel-fibro-concrete, installation of metal cross-bars. The groups of factors changing qualitative and quantitative indicators of process strengthening: defects of reinforced concrete columns and the coefficient of bearing ability increasing a class of strengthening concrete. In the article multifactorial models of labour some work of strengthening and costs from researched factors are represented. Coefficients for the models, considering the defects arrangement on sides of columns are defined. The check of the offered technique are results represented for strengthening of reinforced concrete columns at the operating industrial enterprises.
Keywords: strengthening methods, reinforced concrete columns, the industrial enterprises, defects, multifactorial models, labour some works, efficiency.
Pages: 119-128.
Link for citation: Kozhemjaka, S. V.; Khokhryakova, D. O.; Krupenchenko, G. V. Choice of methods for strengthening of reinforced-concrete columns in the reconstruction conditions of the operating industrial enterprises. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2008. – Vol. 4, N 3. – Р. 119-128. – URL: https://donnasa.ru/publish_house/journals/spgs/2008-3/02_kozhemyaka_hohryakova_krupenchenko.pdf (date of access: 16.09.2024). (in Russian)
Vol. 4, N 3 (2008)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture