Damage mechanism for high strength steel part frame without diaphragm

Y. Kimura, T. Ishihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Recently, the high tension steel with the yield stress of 800 kN/mm 2 was developed, and the loading test of the structural members with this steel has been confirmed. It is shown that the ratio between ultimate strength and yield strength is almost unity, so that the members with this steel have quite small ductility. When rigid moment resisting frames with high tension steel are subjected to seismic force, the fracture at the ends of beam may occur and it causes the strength of frames to decrease. On the other hand, the semi-rigid moment resisting frames without diaphragm with high tension steel can absorb the seismic energy at the beam-to-column connections due to its plate bending deformation. This study performs cycle loading experiments to high tension steel part frames, and compares the initial rigidity and the yield strength of part frames without diaphragm with that of part frames with diaphragm. In addition, these experimental results are compared with the approximation of the reference.

Original languageEnglish
Title of host publicationHigh Performance Structures and Materials VI
Number of pages10
Publication statusPublished - 2012
Event6th International Conference on High Performance Structures and Materials, HPSM 2012 - New Forest, United Kingdom
Duration: 2012 Jun 192012 Jun 21

Publication series

NameWIT Transactions on the Built Environment
ISSN (Print)1743-3509


Other6th International Conference on High Performance Structures and Materials, HPSM 2012
Country/TerritoryUnited Kingdom
CityNew Forest


  • Diaphragmless
  • Fracture
  • High strength steel
  • Plate bending deformation
  • Ultimate strength

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Arts and Humanities (miscellaneous)
  • Transportation
  • Safety Research
  • Computer Science Applications


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