Studying the Behavior of Reinforced Concrete Columns Confined by Steel Structure Under Eccentrically Loading

Q3 Multidisciplinary

Songklanakarin Journal of Science and Technology Pub Date : 2020-12-14 DOI:10.20428/jst.25.1.3

احسان الطرشة, علي الجراش, فلاح مبارك

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Abstract

Abstract This research paper presents an analytical study of a number of Reinforced Concrete Columns models which have rectangular cross section and confined/unconfined by steel Structure of vertical angles and horizontal plates. Columns are subjected to centric and eccentric compression load. The objective is to know how far the bracing is effective in increasing the strength of these columns. This type of strengthening is considered better than the concrete Structure, Carbon Fiber Reinforced Polymer (CFRP) and other types because it has many features, easy and fast to be constructed. The study demonstrated that the bracing by steel Structure led to increase the strength in large ratios and had been clear that once the thickness of steel Structure is increased, the strength increases. And once the eccentricity is increased, the strength decreases and also the failure load. Keywords: reinforced concrete columns, bracing, steel structure, centriccompression, eccentric compression, steel structure thickness, strengtheningeffectiveness, failure load.

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钢结构约束下钢筋混凝土柱在偏心荷载作用下的性能研究

摘要:本文对一些矩形截面钢筋混凝土柱模型进行了分析研究，这些模型均为竖向角和水平板的钢结构约束/无约束。柱承受中心和偏心压缩载荷。目的是了解支撑在多大程度上有效地增加了这些柱的强度。这种类型的加固被认为比混凝土结构，碳纤维增强聚合物(CFRP)和其他类型的加固更好，因为它具有许多特点，容易和快速施工。研究表明，钢结构支撑对强度的提高具有较大的促进作用，并明确了随着钢结构厚度的增加，强度也随之增加。当偏心距增大时，强度减小，破坏载荷减小。关键词:钢筋混凝土柱，支撑，钢结构，偏心受压，偏心受压，钢结构厚度，加固效果，破坏荷载

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来源期刊

Songklanakarin Journal of Science and Technology Multidisciplinary-Multidisciplinary

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： Songklanakarin Journal of Science and Technology (SJST) aims to provide an interdisciplinary platform for the dissemination of current knowledge and advances in science and technology. Areas covered include Agricultural and Biological Sciences, Biotechnology and Agro-Industry, Chemistry and Pharmaceutical Sciences, Engineering and Industrial Research, Environmental and Natural Resources, and Physical Sciences and Mathematics. Songklanakarin Journal of Science and Technology publishes original research work, either as full length articles or as short communications, technical articles, and review articles.