Effect of cutting off of longitudinal bars of reinforced concrete pile on lateral resistance under kinematic and inertial interactions

DOI
  • SANAGAWA Taisuke
    Foundation & Geotechnical Engineering Structure Technology Division, Railway Technical Research Institute
  • NISHIOKA Hidetoshi
    Foundation & Geotechnical Engineering Structure Technology Division, Railway Technical Research Institute
  • KODA Masayuki
    Foundation & Geotechnical Engineering Structure Technology Division, Railway Technical Research Institute
  • MORINO Tatsuya
    Design and Technology Department, Japan Railway Construction, Transport and Technology Agency
  • YONEZAWA Toyoji
    Design and Technology Department, Japan Railway Construction, Transport and Technology Agency
  • AOKI Hihumi
    Engineering Department, Railway Engineering Corporation

Bibliographic Information

Other Title
  • 慣性力と地盤変位が同時に作用する杭の水平抵抗特性に及ぼす杭体の段落し部での損傷の影響

Abstract

At the soft ground, the earthquakes generate large ground deformations. The large ground deformations displace the pile foundations, and induce the large pile forces at deep location. But it is not clear about the behavior of damaged piles, therefore, piles are generally designed not to be damaged by kinematic and inertial forces. In consequence, piles at soft ground have large diameter and it is difficult to cut off of the longitudinal bars in case of reinforced concrete piles at shallow location. The aim of this paper is to propose the economic seismic design code of pile foundations, and we make a study on the effect of cutting off of longitudinal bars reinforced concrete pile on lateral resistance under kinematic and inertial interactions by model tests and numerical simulations. The results of model loading tests confirmed that the damage at stepped rebar arrangement by ground deformation had no effect on lateral resistance, if the piles are not damaged by inertial forces. And it was possible to simulate the experimentally results by the static nonlinear analysis procedure with seismic displacement method. As a result, it indicated possibility of design considering the damage by ground deformations.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001205258674304
  • NII Article ID
    130005063961
  • DOI
    10.3208/jgs.10.33
  • ISSN
    18806341
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top