Structural Engineering and Mechanics

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Cyclic behavior of interior beam-column connections in non-seismic RC frames at different loading rates

  • Dhakal, Rajesh P. (Department of Civil Engineering, University of Canterbury) ;
  • Pan, Tso-Chien (Protective Technology Research Centre, Nanyang Technological University)
  • Received : 2005.12.13
  • Accepted : 2006.02.23
  • Published : 2006.05.30
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Abstract

This paper provides an insight into the response of non-seismic reinforced concrete (RC) building frames to excitations of different frequencies through experimental investigation. The results of cyclic loading tests of six full-scale RC beam-column sub-assemblies are presented. The tested specimens did not have any transverse reinforcement inside the joint core, and they were subjected to quasi-static and dynamic loading with frequencies as high as 20 Hz. Some important differences between the cyclic responses of non-seismic and ductile RC frames are highlighted. The effect of excitation frequency on the behavior of non-seismic joints is also discussed. In the quasi-static tests, shear deformation of the joint panel accounted for more than 50% of the applied story drift. The test results also showed that higher-frequency excitations are less detrimental than quasi-static cyclic loads, and non-seismic frames can withstand a higher load and a larger deformation when they are applied faster.

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References

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