Seismic Upgrading of 3-D Exterior R.C. Beam Column Joints Subjected To Bi-Directional Cyclic Loading Using GFP Composites, (2007)
Type of ContentConference Contributions - Published
PublisherUniversity of Canterbury. Civil and Natural Resources Engineering.
In this contribution, as part of a more extensive research program on seismic retrofit solutions for reinforced concrete buildings, the effects of bi-directional loading on the assessment and design of the retrofit intervention using FRP composite materials will be discussed. Based on experimental evidences on the performance of exterior 3D (corner) under-designed beam-column joints, the limits and drawbacks of standard assessment methodologies when evaluate the hierarchy of strength and expected sequence of events prior to define the retrofit intervention, will be discussed. In addition, the preliminary results of an on-going experimental campaign to further investigate and address this issue will be presented, based on the quasi-static tests under bi-directional loading on two 3D exterior (corner) joint specimens, comprising of a pre-1970s as-built specimen (benchmark) and a “minimum” retrofitted configuration using GFRP sheets. The feasibility and efficiency of the adopted retrofit strategy and solution, aiming at controlling the hierarchy of strength within the beam-column joint system by protecting the panel zone and relocating the plastic hinge in the beam, will be discussed. Considerations and suggestions on the additional design criteria to account for the actual 3-D response under bi-directional loading will be also given.
CitationPampanin, S., Akguzel, U., Attanasi, G. (2007) Seismic Upgrading of 3-D Exterior R.C. Beam Column Joints Subjected To Bi-Directional Cyclic Loading Using GFP Composites,. Patras, Greece: 8th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures, 16-18 Jul 2007.
This citation is automatically generated and may be unreliable. Use as a guide only.
Keywordsseismic retrofit; GFRP; exterior beam-column joints; bi-directional cyclic loading
Showing items related by title, author, creator and subject.
Seismic Performance of FRP Retrofitted Exterior RC Beam-Column Joints under Varying Axial and Bidirectional Loading Akguzel, Umut (University of Canterbury. Civil and Natural Resources Engineering, 2011)Most of the experimental studies available in literature on the seismic assessment and retrofit of existing, poorly detailed, reinforced concrete (RC) beam-column joints typical of pre-1970s construction practice have ...
Performance of Damage Avoidance beam-column joint subassembly subjected to bi-directional earthquake excitation Bradley, Brendon; Dhakal, Rajesh; Mander, J.B.; Li, L. (University of Canterbury. Civil and Natural Resources Engineering, 2006)This paper investigates the experimental application of a newly-developed Multi-level Seismic Performance Assessment (MSPA) methodology. Firstly, MSPA enables each seismic performance requirement to be verified using a ...
Solberg, K.M.; Li, L.; Bradley, Brendon; Mander, J.B.; Dhakal, Rajesh (University of Canterbury. Civil and Natural Resources Engineering, 2006)This work will further investigate the validity of Damage Avoidance Design systems through an experimental and computational study of a 80% scale sub-assembly. A coupler system is implemented whereby high strength unbonded ...