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Published on: June 27, 2018
Seismic performance of RC beam-column connections with continuous rectangular spiral transverse reinforcements for
Mohammadamin Azimi1, Azlan Bin Adnan1, Abdul Rahman Bin Mohd Sam1
1Faculty of Civil Engineering, Engineering Seismology and Earthquake Engineering Research (e-SEER), Department of Structure and Materials, Universiti Teknologi Malaysia (UTM), 81300 Skudai, Johor Bahru, Malaysia.
Abstract:
The seismic performance of RC columns could be significantly improved by continuous spiral reinforcement as a result of its adequate ductility and energy dissipation capacity. Due to post-earthquake brittle failure observations in beam-column connections, the seismic behaviour of such connections could greatly be improved by simultaneous application of this method in both beams and columns. In this study, a new proposed detail for beam to column connection introduced as "twisted opposing rectangular spiral" was experimentally and numerically investigated and its seismic performance was compared against normal rectangular spiral and conventional shear reinforcement systems. In this study, three full scale beam to column connections were first designed in conformance with Eurocode (EC2-04) for low ductility class connections and then tested by quasistatic cyclic loading recommended by ACI Building Code (ACI 318-02). Next, the experimental results were validated by numerical methods. Finally, the results revealed that the new proposed connection could improve the ultimate lateral resistance, ductility, and energy dissipation capacity.
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