Earthquakes and Structures

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Cyclic tests of steel frames with composite lightweight infill walls

  • Hou, Hetao (School of Civil Engineering, Shandong University) ;
  • Chou, Chung-Che (Department of Civil Engineering, National Taiwan University) ;
  • Zhou, Jian (School of Civil Engineering, Shandong University) ;
  • Wu, Minglei (Shandong Engineering Consulting Institute) ;
  • Qu, Bing (School of Civil Engineering, Shandong University) ;
  • Ye, Haideng (School of Civil Engineering, Shandong University) ;
  • Liu, Haining (School of Civil Engineering, Shandong University) ;
  • Li, Jingjing (School of Civil Engineering, Shandong University)
  • Received : 2014.06.09
  • Accepted : 2015.11.24
  • Published : 2016.01.25
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Abstract

Composite Lightweight (CL) insulated walls have gained wide adoption recently because the exterior claddings of steel building frames have their cost effectiveness, good thermal and structural efficiency. To investigate the seismic behavior, lateral stiffness, ductility and energy dissipation of steel frames with the CL infill walls, five one-story one-bay steel frames were fabricated and tested under cyclic loads. Test results showed that the bolted connections allow relative movement between CL infill walls and steel frames, enabling the system to exhibit satisfactory performance under lateral loads. Additionally, it is found that the addition of diagonal steel straps to the CL infill wall significantly increases the initial lateral stiffness, load-carrying capacity, ductility and energy dissipation capacity of the system. Furthermore, the test results indicate that the lateral stiffness values of the frames with the CL infill wall are similar to those of the bare steel frames in large lateral displacement.

Keywords

Acknowledgement

Grant : Study on the Application Technique of Energy-Saving Assembly Cladding System Used in Residential Houses

Supported by : Shandong University

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