Strengthening of RC wall-like columns with FRP under sustained loading

Title: Strengthening of RC wall-like columns with FRP under sustained loading
Author(s): S. Tanwongsval, M. Maalej, P. Paramasivam
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 36
Issue: 259
Issue date: 2003-06-01
Publication year: 2003
Pages: 282 - 290
Total Pages: 9
Nb references: 12
Language: English

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.

Online publication: 2003-04-27
Classification: Technical Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13819