In this paper, the structural characteristics of a lightweight soundproof tunnel to reduce the dead load imposed on the bridge are investigated. Subsequently, the design procedure of soundproof tunnel structures is reviewed and a design practice for the lightweight soundproof tunnel is carried out according to the reviewed procedure. Next, design compatibility for the lightweight soundproof tunnel is verified through a detailed finite element analysis. The result for evaluation of design compatibility shows that the lightweight soundproof tunnel has structural safety in structural members, welding zones and foundation parts. It is also confirmed that serviceability and buckling safety is excellent.

1. 서 론
 2. 경량 방음터널의 개요
  2.1 경량 방음터널의 구성
  2.2 경량 방음터널의 각 요소의 특징
 3. 경량 방음터널의 설계
  3.1 방음터널의 구조설계
  3.2 경량 방음터널의 구조설계
 4. 경량 방음터널의 설계 적합성 평가
  4.1 유한요소해석
  4.2 구조적 거동 평가
  4.3 연결부 안정성 평가
  4.4 좌굴 안정성 평가
  4.5 설계와 해석 결과 비교 검토
 5. 결 론
 ACKNOWLEDGMENT
 REFERENCES

• 안동욱(포스코 철강솔루션마케팅실 구조연구그룹 책임연구원) | Ahn Dong-Wook
• 최성준(테크스타코리아(주) 이사) | Choi Sung-Joon
• 노명현(포스코 철강솔루션마케팅실 구조연구그룹 책임연구원) | Noh, Myung-Hyun Corresponding author