Earthquakes and Structures

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Dynamic behaviors of viscous damper on concrete archaized building with lintel-column joint

  • Xue, Jianyang (School of Civil Engineering, Xi' an University of Architecture and Technology) ;
  • Dong, Jinshuang (School of Civil Engineering, Xi' an University of Architecture and Technology) ;
  • Sui, Yan (School of Civil Engineering, Xi' an University of Architecture and Technology)
  • Received : 2016.07.09
  • Accepted : 2017.01.04
  • Published : 2017.10.25
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Abstract

In order to analyze the vibration control effect of viscous damper in the concrete archaized buildings with lintel-column joints under seismic action, 3 specimens were tested under dynamic excitation. Two specimens with viscous damper were defined as the controlled component and one specimen without viscous damper was specified as the non-controlled component. The loading process and failure patterns were obtained from the test results. The failure characteristics, skeleton curves and mechanical behavior such as the load-displacement hysteretic loops, load carrying capacity, degradation of strength and rigidity, ductility and energy dissipation of the joints were analyzed. The results indicate that the load-bearing capacity of the controlled component is significantly higher than that of the non-controlled component. The former component has an average increase of 27.4% in yield load and 22.4% in ultimate load, respectively. Meanwhile, the performance of displacement ductility and the ability of energy dissipation for the controlled component are superior to those of the non-controlled component as well. Compared with non-controlled component, equivalent viscous damping coefficients are improved by 27.3%-30.8%, the average increase is 29.0% at ultimate load for controlled component. All these results reflect that the seismic performance of the controlled component is significantly better than that of the non-controlled component. These researches are helpful for practical application of viscous damper in the concrete archaizing buildings with lintel-column joints.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Xi'an University of Architecture and Technology

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