All Issue

2021 Vol.31, Issue 1 Preview Page

Research Article

Three-dimensional Modeling Seismic Analysis of Circular Water Reservoirs considering Differential Settlement Effects

부동침하 영향을 고려한 원형 배수지 구조의 3차원 모델링 지진 해석

Sang-Youl Lee1
,
Hyung Bae Choi2
,
Kwang Sik Ahn2
,
Gyo-Cheol Jeong1*
이 상열1
,
최 형배2
,
안 광식2
,
정 교철1*
1Professor, Department of Earthquake Disaster Prevention Engineering, Graduate School, Andong National University
2Graduate Student, Department of Earthquake Disaster Prevention Engineering, Graduate School, Andong National University
1안동대학교 대학원 지진방재공학과 교수
2안동대학교 대학원 지진방재공학과 대학원생
*Corresponding Author
31 March 2021. pp. 43-53
PDF XML Citation
Abstract

Three-dimensional finite element analysis of 1,300 ton stainless water reservoirs was undertaken to consider differential settlement effects of the reservoir when subjected to earthquake loads. The earthquake load for large (>1,000 ton) water reservoirs are further determined using a specification established from the Korean Standards Association. The structural behavior of water reservoirs with differential settlements can be heavily dependent on seismic loading effects. Stress and displacement distributions are induced for various load combinations, including for with and without differential settlements. From numerical examples, the induced maximum displacements of the water reservoirs largely increase with differential settlements compared to those without differential settlements.

Keywords
differential settlement
water reservoir
earthquake load combination
three-dimensional analysis

본 연구에서는 부동침하 영향을 고려하여 지진 하중을 받는 1,300 ton 규모의 스테인리스 배수지 구조에 대한 3차원 유한요소 해석을 수행하였다. 1,000 ton 규모 이상의 대용량에 대한 지진하중은 한국표준 규격 규정으로부터 확장하여 산정하였다. 부동침하가 발생한 배수지는 특히 지진하중에 대하여 구조적 거동에 중요한 영향이 발생할 수 있다. 다양한 하중 조합에 대하여 정상상태의 경우, 침하가 고려된 경우, 그리고 수평으로 보강된 경우에 대한 응력 및 변위 분포의 변화를 도출하였다. 수치해석 결과로부터 부동침하가 발생된 배수지는 지진하중 조합에 대하여 최대 변위가 크게 증가하게 됨을 확인할 수 있었다.

키워드
부동침하
배수지
지진하중 조합
3차원 해석
References
1
Baek, E.R., Oh, J.H., Choi, H.S., Lee, S.H., 2019, Evaluation of seismic design force by earthquake response analysis of water tanks installed in RC buildings, Journal of the Earthquake Engineering Society of Korea, 23(4), 221-229 (in Korean with English abstract). 10.5000/EESK.2019.23.4.221
2
Eem, S.H., Yang, B., Jeon, H., 2018, Earthquake damage assessment of buildings using opendata in the Pohang and the gyeongju earthquakes, Journal of the Earthquake Engineering Society of Korea, 22(3), 121-128 (in Korean with English abstract). 10.5000/EESK.2018.22.3.121
3
Eom, T.S., Lee, S.J., Park, H.G., 2019, Investigation of structural damage in bearing wall buildings with pilotis by 2017 Pohang earthquake, Journal of the Earthquake Engineering Society of Korea, 23(1), 9-18 (in Korean with English abstract). 10.5000/EESK.2019.23.1.009
4
Hamdan, F.H., 2000, Seismic behaviour of cylindrical steel liquid storage tanks, Journal of Constructional Steel Research, 53(3), 307-333. 10.1016/S0143-974X(99)00039-5
5
Hibbitt, Karlsson and Sorensen Inc., 2007, ABAQUS/CAE user's manual, version 6.7, Pawtucket, R.I.
6
Korean Design Standard, 2019, Design loads, KDS 41 10 25 (in Korean).
7
Korean Standards Association, 2011, Design requirements for wind load and seismic load of oil storage tanks, KS B 6283 (in Korean).
8
Lee, S.Y., Jeong, G., 2015, Determination of earthquake loads and finite element analysis of circular water reservoirs with a large size over 5,000 ton, The Journal of Engineering Geology, 25(2), 265-272 (in Korean with English abstract). 10.9720/kseg.2015.2.265
9
Malhotra, P.K., 2000, Simple procedure for seismic analysis of liquid-storage tanks, Structural Engineering International, 10(3), 197-201. 10.2749/101686600780481509
10
Son, B., Lee, S.Y., 2016, Optimized structural analysis of rectangular STS water reservoirs with 5,000ton capacity, Journal of the Korean Society for Advanced Composite Structures, 7(2), 24-29 (in Korean with English abstract). 10.11004/kosacs.2016.7.2.024
Information
  • Publisher :Korean Society of Engineering Geology
  • Publisher(Ko) :대한지질공학회
  • Journal Title :The Journal of Engineering Geology
  • Journal Title(Ko) :지질공학
  • Volume : 31
  • No :1
  • Pages :43-53
  • Received Date : 2021-01-25
  • Accepted Date : 2021-02-22
  • DOI :https://doi.org/10.9720/kseg.2021.1.043
Journal Informaiton The Journal of Engineering Geology The Journal of Engineering Geology
Online Submission
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close