Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Nonlinear Dynamic Analysis of an Apartment Building for Vertical Extension Remodeling Including a Pile Foundation

말뚝 기초 영향을 고려한 수직증축 리모델링 공동주택의 비선형 동적해석

  • 김경태 ((주)창민우구조컨설탄트) ;
  • 김종호 ((주)창민우구조컨설탄트)
  • Received : 2022.10.11
  • Accepted : 2023.02.09
  • Published : 2023.03.30
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Abstract

After performing a nonlinear time history analysis of an apartment for vertical extension remodeling, the characteristics of the model including a pile foundation and the pinned base model without including a pile foundation on the nonlinear behavior of a superstructure were analyzed. By introducing vertical and horizontal stiffness to the pile, the constraint effect of the ground was defined. In the case of insufficient strength of the pile during the construction stage, micro piles were additionally placed. The nonlinear properties of the superstructure were the same as the typical performance-based seismic design procedure, and the nonlinear dynamic analysis of the 7-pair earthquake motions were performed for the pile foundation model and the pinned base model. As a result of this analysis, it was found that the story drift and material strains of the pile foundation model increased compared to the pinned base model. In addition, the base shear force was reduced in the pile foundation model compared to the pinned base model, and the pile reaction force in the pile foundation model was also reduced. This is thought to be the effect of reducing the response spectrum acceleration value due to the increase in the natural period of the pile foundation model.

Keywords

Acknowledgement

이 연구는 2022년도 국토교통과학기술진흥원 주거환경연구사업과제 "수직증축 허용에 따른 구조안전 확보 기술개발" 연구비 지원에 의한 결과의 일부임. 과제번호: 22RERP-B099766-08

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