Experimental Study on Existing RC Circular Members Under Unequal Lateral Impact Train Collision

Khalil AL‑Bukhaiti; Liu Yanhui; Zhao Shichun; Hussein Abas; Xu Nan; Yang Lang; Yan Xing Yu; Han Daguang

추천

검색

질문

자료유형: 학술저널

저자정보: Khalil AL‑Bukhaiti (Southwest Jiaotong University) Liu Yanhui (Southwest Jiaotong University) Zhao Shichun (Southwest Jiaotong University) Hussein Abas (Southwest Jiaotong University) Xu Nan (Southwest Jiaotong University) Yang Lang (Southwest Jiaotong University) Yan Xing Yu (Southwest Jiaotong University) Han Daguang (Art and Design Oslo Metropolitan University)

저널정보: 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.16 No.5

발행연도: 2022.9

수록면: 613 - 633 (21page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

With the fast growth of high-speed rail in recent years, derailment has become the first hidden danger of high-speed rail transportation. The high-speed train passes near the station building. So the train may derail and hit the station building. Building a high-speed railway station usually uses a reinforced concrete structure. As a result of high impact energy on the impact body, the reinforced concrete (RC) member may fail; the impact point is near the member’s foot; the structural member’s constraint can be considered fixed support. This paper investigates the dynamic behavior of four types of circular reinforced concrete members under unequal lateral impact loads. The RC member’s failure mechanism and dynamic response addressed the significance of unequal lateral impact load. The usual circular reinforced concrete members are used as the model to perform the drop-weight impact test. The specimens’ crack pattern, failure mechanism, impact, deflection, and strain time–history curves are obtained. Findings show that between the impact point and the adjacent support, shear fractures occur that fail in shear mode. Shear cracks are based on impact velocity, longitudinal reinforcement ratio, and stirrup ratio. One type is more destructive to members and nodes. A shear fracture occurs when a longitudinal reinforcement fractures towards the closer support. The effects of impact velocity, longitudinal reinforcement ratio, and stirrup ratio on the dynamic impact response are studied. The experimental results may help improve structural member impact resistance. The critical section (right side) computed the static shear resistance using shear force, whereas the maximum external load resistance determines static bending moment resistance. Understanding how circular members fail to be subjected to unequal lateral impact loads provides insight into circular RC members’ impact design and damage evaluation.

#impact duration #shear crack #impact test #failure mode #energy absorbed #locomotive train #static bending #shear strength

참고문헌 (0)

참고문헌 신청

참고문헌이 DBpia에서 서비스 중이라면, [참고문헌 신청]을 통해 등록해보세요

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!