- Lateral-force resisting mechanisms of flexure-dominant multi-story structural walls sustained on soft-first-story
- M. Sakashita ; Y. Idosako ; X. Feng ; M Nishiyama
- Book Title / Journal: New Zealand Society for Earthquake Engineering (NZSEE) Annual Technical Conference
- Year: 2014 , Volume: , Series:
- Structural dynamics ; Earthquake engineering
- Keywords: soft story ; lateral force
- Description
- This paper presents lateral-force resisting mechanisms of flexure-dominant multi-story structural walls on a soft-first-story. Two reinforced concrete specimens consisted of the 3-story-high structural wall on the soft-first-story were constructed in 1/3-scale and tested under cyclic loading simulating earthquake motions. The test variable was the longitudinal reinforcement ratio in the boundary beam of the 2nd floor, which was
1.19% or 2.56%. The structural walls yielded in flexure as intended, which, however, did not result in the concentration of deformation only on the 2nd story. The reason is that the boundary beam yielded in flexure and tension, and a yielding mechanism other than intended was formed. The difference in load capacity between the two specimens was not
of significance. The mechanism needed as large drift angle as approximately 2% to attain the design lateral load capacity. The beam-column joints on the 2nd floor failed, which resulted in an inability to sustain the axial load.
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- Damage Assessment of Reinforced Concrete Columns Under High Axial Loading
- S. Kono ; H. Bechtoula ; M. Sakashita ; H. Tanakai ; F. Watanabe
- Book Title / Journal:
- Year: 2006 , Volume: , Series:
- Structure types ; Concrete structures
- Description
- ACI Special Publication, SP-237, Finite-Element Analysis of Reinforced Concrete Structures, Eds. L. Lowes and F. Filippou, American Concrete Institute, 2006, pp 165-176. Available from Marc O. Eberhard homepage, Department of Civil and Environmental Engineering, University of Washington
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