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Experimental Study of Novel Concrete Frames Considering Earthquake and Progressive Collapse

  • Xinzheng LuEmail author
  • Kaiqi Lin
  • Donglian Gu
  • Yi Li
Conference paper

Abstract

Earthquake and progressive collapse are two critical hazards increasing the collapse risks of reinforced concrete (RC) frames. Existing research has revealed that considering the seismic design and progressive collapse design individually for a structure may lead to an undesirable structural performance and unnecessary waste of materials. In this study, two novel concrete frames are proposed to satisfy the demands of both seismic and progressive collapse designs. The experimental results of seismic cyclic and progressive collapse tests indicate that although implementing progressive collapse design can effectively enhance the progressive collapse resistance of RC frame, the beam could be over-strengthened, resulting in a potential unfavorable “strong beam-weak column” failure mode. By contrast, the novel RC frame with a newly proposed structural detailing demonstrates a minor joint region damage with a satisfying progressive collapse resistance. Moreover, the new prefabricated frame exhibits such characteristics as large rotation, low damage, self-centering, and ease of repair.

Notes

Acknowledgements

The authors are grateful for the financial support from the National Natural Science Foundation of China (No. 51778341).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Beijing Engineering Research Center of Steel and Concrete Composite StructuresTsinghua UniversityBeijingChina
  2. 2.Key Laboratory of Civil Engineering Safety and Durability of Ministry of EducationTsinghua UniversityBeijingChina
  3. 3.Key Laboratory of Urban Security and Disaster Engineering of Ministry of EducationBeijing University of TechnologyBeijingChina

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