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Experiemental investigation of RC corner columns with varying seismic details under different lateral and vertical loading : Experimental investigation of RC corner columns with varying seismic details under different lateral and vertical loading 원문보기

  • 저자

    DANG VU HOANG

  • 학위수여기관

    Department of Architectural Engineering, Sejong University

  • 학위구분

    국내석사

  • 학과

    건축공학과

  • 지도교수

    Kihak Lee

  • 발행년도

    2014

  • 총페이지

  • 키워드

    Seismic behavior failure mechanisms hysteretic curves energy dissipation RC seismic details;

  • 언어

    eng

  • 원문 URL

    http://www.riss.kr/link?id=T13541036&outLink=K  

  • 초록

    This study aims to investigate the seismic behavior of RC columns under quasi-static reversed lateral cyclic loading and constant axial force. Eight 2/3-scale square cross-sectioned column specimens were constructed with various seismic details. The primary test parameters consist of types of loading (uniaxial and biaxial), different failure modes expectedly gained by varying seismic reinforcement (flexure, flexure-shear, and shear), and compressive axial loads (10% and 30% of column's capacity). Particularly, this study is aimed at investigating the biaxial loading effects by adopting a rhombus path loading whose 100% of the forces for one direction plus 30% of the forces for the perpendicular direction for the test loadings. Components designed for this directions of application of seismic forces will produce the most critical load effects. The results show that, as expected, biaxial loading have distinct effects than uniaxial loading in diminishing the column's capacity as well as in producing strength and stiffness deterioration. However, specimen's failure mechanism deemed to ease biaxial effect since uniaxial flexure-shear and shear specimens exhibited only slight differences to those in biaxial test. The applied axial load of 30% of column's capacity also have a huge effect in reducing specimen's drift capacity with a reduced maximum strength.


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