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Title: Strengthening of RC wall-like columns with FRP under sustained loading
Authors: Tanwongsval, S.
Maalej, M. 
Paramasivam, P. 
Issue Date: Jun-2003
Citation: Tanwongsval, S.,Maalej, M.,Paramasivam, P. (2003-06). Strengthening of RC wall-like columns with FRP under sustained loading. Materials and Structures/Materiaux et Constructions 36 (259) : 282-290. ScholarBank@NUS Repository.
Abstract: In recent years, increasing research efforts have been geared towards studying the repair and strengthening of concrete structures using fibre reinforced polymer (FRP) composites. Numerous studies have shown that structural members such as circular columns can experience a significant increase in strength and ductility due to passive confinement provided by the composite wraps. In rectangular columns, however, limited strength increases have been achieved due to the nonuniform distribution of confining stress around the column. Despite the large number of studies on FRP-confined concrete columns, studies on the strengthening of RC wall-like (i.e. high aspect ratio) columns have been limited. Furthermore, most studies did not consider the effect of sustained loading on the column during repair/strengthening. This paper reports the results of an experimental investigation where various schemes have been used to strengthen wall-like RC columns with and without sustained loading. The effects of sustained loading on the strengthening efficiency as well as the lateral strain distribution in the composite wrap have also been investigated.
Source Title: Materials and Structures/Materiaux et Constructions
ISSN: 13595997
DOI: 10.1617/13819
Appears in Collections:Staff Publications

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