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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >Behavior of eccentrically loaded concrete columns with FRP wrapping
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Behavior of eccentrically loaded concrete columns with FRP wrapping

机译：FRP包裹偏心混凝土柱的性能

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摘要

Concrete columns are usually subjected to a concentric load. However, columns are often under eccentric loading condition due to the irregularity of the column arrangement in the frame system. It is well known that an eccentrically loaded column shows smaller ultimate strength than a concentrically loaded column. Therefore, the strengthening of the column must be considered under eccentric loadings. In this paper, the strengthening of the high strength concrete columns using the confined effects by use of the FRP wrapping are examined and the eccentrically loaded columns with FRP wrapping are analyzed numerically. In the numerical analyses, the columns are modeled from the experimental specimens. Several kinds of materials are considered for wrapping of columns. Finite element procedure is adopted for the numerical analyses and the load-deflection relation and the ultimate strength as well as the ductility of columns are evaluated. The numerical results are compared with the experimental results. From both numerical and experimental results, the failure mechanisms of concrete columns are explained and the effectiveness of the FRP wrapping of the concrete columns are presented.
机译：混凝土柱通常承受同心载荷。但是，由于框架系统中立柱布置的不规则性，立柱经常处于偏心加载状态。众所周知，偏心加载的柱子比同心加载的柱子具有较小的极限强度。因此，必须考虑在偏心荷载下加固圆柱。在本文中，研究了通过FRP包裹的有限效应来加固高强度混凝土柱，并对FRP包裹的偏心荷载柱进行了数值分析。在数值分析中，这些柱是根据实验样本建模的。考虑了几种材料来包裹柱子。数值分析采用有限元程序，评估了荷载-挠度关系，极限强度以及柱的延性。将数值结果与实验结果进行比较。从数值和实验结果出发，阐述了混凝土柱的破坏机理，并提出了FRP包裹混凝土柱的有效性。

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