Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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Evaluation on Degree of Interference Based on Installation Characteristics of Transverse Members Installed in Steel Strip Reinforcement

띠형 강보강재에 설치된 수동저항부재의 설치 특성에 따른 상호간섭계수 평가

  • Jung, Sunggyu (Geotechnical & Geo-Space Engineering, Univ. of Science & Technology) ;
  • Hong, Kikwon (School of Civil and Environmental Engineering, Urban Design and Study, Chung-Ang Univ.) ;
  • Han, Jung-Geun (School of Civil and Environmental Engineering, Urban Design and Study, Chung-Ang Univ.) ;
  • Lee, Kwang-Wu (Geotechnical & Geo-Space Engineering, Univ. of Science & Technology)
  • Received : 2014.07.31
  • Accepted : 2014.08.22
  • Published : 2014.09.30
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Abstract

This paper describes interference effect analysis of transverse member based on large-scale pullout test results of steel strip reinforcement with '${\sqcap}$' type transverse member. The maximum passive resistance has a difference according to the installed location of transverse member, and the total pullout resistance is increased, when transverse member was closed to the wall facing. The degree of interference confirmed that the install location of transverse member cannot reflect the pullout force differential, if S/B is equal. However, The interference factor based on maximum passive resistance reflected the differential of maximum passive resistance and install location of transverse member.

본 연구에서는 띠형 강보강재에 '${\sqcap}$' 형태의 수동저항부재를 설치하는 보강재에 대한 인발시험 결과를 바탕으로 수동저항부재의 간격 및 설치위치에 따른 간섭효과를 분석하였다. 수동저항부재에서 발현되는 최대수동저항력은 수동저항부재의 설치 위치에 따라 차이가 발생하였으며, 전면벽체에 근접하여 설치된 수동저항부재에서 더 큰 수동저항력이 발현되는 것을 확인하였다. 최대인발력을 사용하여 간섭계수(DI)를 평가한 결과, 지지부재 직경과 간격의 비(S/B)가 동일한 경우에는 수동저항부재의 설치 위치에 따른 인발력 차이를 반영하지 못하는 것으로 평가되었다. 그러나 최대수동저항력을 사용하여 간섭계수(F)를 산정할 경우에는 수동저항부재의 설치 간격뿐만 아니라, 수동저항부재의 설치 위치에 따른 최대수동저항력 차이를 반영하는 것으로 분석되었다.

Keywords

References

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