RT Journal Article
T1 Efficiency of short steel jackets for strengthening square section concrete columns
A1 Ramírez, J. L.
A1 Bárcena, J. M.
A1 Urreta, J. I.
A1 Sánchez, J. A.
AB Following other short length square concrete column strengthening methods which have been studied and published before by the authors (polymeric concrete, steel angles and prestressed bolts jackets), two different additional methods will be presented in this paper. In one of this methods the steel jacket is formed by two bent plates L shaped welded longitudinally in the two common corners, leaving a small clearance with respect to the original column surface that is injected with a polymeric grout afterwards. In the other, the jacket is made by adhesion of steel plates to the complete four faces of the column, closing the jacket by narrow bent plates L shaped joined also by adhesion to the steel plates at the column corners. Complete loss of strength of the original concrete column has been assumed, in centered compression, and a method of calculation for load transfer between column and jacket in the smallest length possible will be presented. A good experimental behaviour and correspondence between calculation and results has been obtained for the welded and injected jacket but these results have been poor for the jacket built up by adhesion. Problems caused by the quality of adhesive and mastics have also been detected, and finally some observations concerning the price and conditions of execution have been made.
SN 0950-0618
YR 1997
FD 1997
LK https://hdl.handle.net/11556/3870
UL https://hdl.handle.net/11556/3870
LA eng
NO Ramírez , J L , Bárcena , J M , Urreta , J I & Sánchez , J A 1997 , ' Efficiency of short steel jackets for strengthening square section concrete columns ' , Construction and Building Materials , vol. 11 , no. 5-6 , pp. 345-352 . https://doi.org/10.1016/S0950-0618(97)00056-1
NO Part of this paper presents results of BREU project P3091 "Assessment of performance and optimal strategies for inspection and maintenance of concrete structures using reliability based expert systems". This project has been supported by EEC and CICYT (Spain), with the following partners:
DS TECNALIA Publications
RD 26 jul 2024