Please use this identifier to cite or link to this item:
|Title:||Behavior of simple-span reinforced concrete beams locally strengthened with external tendons||Authors:||Tan, K.-H.
|Issue Date:||Mar-2001||Citation:||Tan, K.-H.,Farooq, M.A.-A.,Ng, C.-K. (2001-03). Behavior of simple-span reinforced concrete beams locally strengthened with external tendons. ACI Structural Journal 98 (2) : 174-183. ScholarBank@NUS Repository.||Abstract:||An investigation of simple-span reinforced concrete beams strengthened by external tendons that are anchored at intraspan locations is carried out and reported herein. It is shown analytically that anchoring the tendons at locations less than a critical distance from the beam end would result in the strengthened beams performing satisfactorily in terms of ultimate load-carrying capacity. The critical distance depends on the loading configuration and the desired strength enhancement. To substantiate the analytical results, five understrength reinforced concrete beams were strengthened with steel or carbon fiber-reinforced polymer (FRP) tendons and tested to failure under third-point loading. The test results indicate that it is possible to locally strengthen the beam by anchoring the tendons at intraspan locations without compromising the deflection and cracking behavior, in addition to ultimate load behavior. The process leads to shorter, and hence more economical, use of external tendons, as well as minimizing second-order effects due to varying tendon eccentricities under load. The same results were obtained for beams strengthened with external steel or FRP tendons.||Source Title:||ACI Structural Journal||URI:||http://scholarbank.nus.edu.sg/handle/10635/65216||ISSN:||08893241|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 2, 2023
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.