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2017 Vol.19, Issue 5 Preview Page
Dynamic response of middle slab in double-deck tunnel due to vehicle load

차량하중에 의한 복층터널 중간슬래브의 동적 응답

Hyo-Beom Kim1
,
Chang-Won Kwak2
,
Inn-Joon Park3*
김 효범1
,
곽 창원2
,
박 인준3*
1Member, VE-Tech Corporation, Team manager
2Member, Civil&Architecture Design Group, Korea District Heating Engineering Co. Ltd
3Member, Professor, Department of Civil Engineering, Hanseo University
1정회원, (주)브이테크 팀장
2종신회원, 한국지역난방기술 과장
3종신회원, 한서대학교 토목공학과 교수
*교신저자. *Corresponding Author. 
30 September 2017. pp. 717-732
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Abstract

Recently, the construction of underground structure such as a double-deck tunnel is increasing to manage rapid growth of roadway traffic volume. Double-deck tunnel includes middle slab to separate upper and lower road inside, and various sources affect the dynamic behaviour of middle slab due to dynamic loading of vehicle. Therefore, it is important to investigate the dynamic response of middle slab precisely to apply it to design and analysis of double-deck tunnel. In this study, dynamic analysis model of middle slab considering structural type, design velocity, vehicle load, and surface roughness, etc. is built. 3-dimensional dynamic analysis is performed to assess dynamic response of middle slab. Consequently, Dynamic Magnification Factor which represents dynamic response of middle slab shows maximum in case of elastomeric bearings (EB) and average roughness (Grade C). It is also expected that dynamic response can be reduced under the condition of good roughness (Grade B) and fixed bearings (FB).

Keywords
Double-deck tunnel
Middle slab
Vehicle load
Surface roughness
Dynamic Magnification Factor

최근 급증하는 도로 교통량을 원활히 처리할 수 있는 대안으로 복층터널과 같은 지하구 조물의 건설이 증가하고 있다. 복층터널은 내부에 상부와 하부를 분리하는 중간슬래브 가 존재한다. 중간슬래브는 차량이 주행할 때 발생하는 차량의 동적하중으로 인하여 동 적거동을 하게 되며, 그 동적거동을 정확히 파악하여 설계 및 해석에 이용하는 것이 중요하다. 본 연구에서는 복층터널 중간슬래브의 구조형식, 설계속도, 주행차량 및 노면조도 등을 고려한 해석모델을 작성 하고 노면에 차량이 일정속도로 주행하는 경우에 대해 3차원 동적해석을 수행하여 복층터널 중간슬래브의 동적거동을 분석하였다. 그 결과, 중간슬래브의 동적영향을 대표하는 동적확대계수는 탄성받침 지지조건 및 보통의 노면조도 조건 에서 가장 크게 증폭되는 경향을 보였고, 양호한 노면조도와 강결연결 조건에 의해 동적영향을 작게 할 수 있음을 확인하 였다.

키워드
복층터널
중간슬래브
차량하중
노면조도
동적확대계수
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 19
  • No :5
  • Pages :717-732
  • Received Date : 2017-07-27
  • Revised Date : 2017-08-31
  • Accepted Date : 2017-09-05
  • DOI :https://doi.org/10.9711/KTAJ.2017.19.5.717
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