지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 허선철
- 발행연도
- 2019
- 저작권
- 경상대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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The largest earthquake in Korea occurred in Gyeongju in 2016 and the second largest earthquake occurred in Pohang in the following year. According to the Korea Meteorological Administration, the number of earthquakes has increased rapidly every year. As the strength and frequency of earthquakes increase, much research has been conducted on seismic design of buildings and structures. However, seismic analysis of pedestal fixed lattice boom crane has not been reported. Lattice Boom Crane is generally mounted on offshore structures, but it may be installed on land in several ports or industrial complexes. In fact, earthquake analysis is necessary for crane installed on the land. Therefore, the purpose of this study is to evaluate structural stability through seismic analysis and structural analysis of Lattice Boom Crane used in the land.
Structural analysis and response spectrum analysis were performed by dividing the model of Lattice Boom Crane into three cases according to working luffing angle. Structural analysis was carried out after modifying the classification rules according to the land conditions and applying the load. All conditions satisfied the safety factor of 1.5 or more. In addition, modal analysis was preceded in order to response spectrum analysis, and the necessity of seismic analysis including the natural frequencies in the range of 0 - 33Hz, which is the frequency band of general seismic waves, was judged. The seismic analysis was performed using the response spectrum of the Pohang Earthquake in 2017, As a result of the response spectrum analysis, it was confirmed that it is sufficiently safe against earthquake.
Structural analysis and response spectrum analysis were performed by dividing the model of Lattice Boom Crane into three cases according to working luffing angle. Structural analysis was carried out after modifying the classification rules according to the land conditions and applying the load. All conditions satisfied the safety factor of 1.5 or more. In addition, modal analysis was preceded in order to response spectrum analysis, and the necessity of seismic analysis including the natural frequencies in the range of 0 - 33Hz, which is the frequency band of general seismic waves, was judged. The seismic analysis was performed using the response spectrum of the Pohang Earthquake in 2017, As a result of the response spectrum analysis, it was confirmed that it is sufficiently safe against earthquake.
목차
Ⅰ. 서론 11. 연구 배경 및 연구 목적 1Ⅱ. 이론적 배경 61. 등가정적해석법 62. 동적해석법 102.1. 시간이력해석법 102.2. 응답스펙트럼해석법 11Ⅲ. 구조해석 및 응답스펙트럼해석 141. Lattice Boom Crane 3D 모델링 142. Lattice Boom Crane의 구조해석 및 경계조건 162.1. 리프팅 하중(Lifting Loads) 182.2. 호이스팅 하중(Hoisting Loads) 193. Lattice Boom Crane의 고유치 해석 234. Lattice Boom Crane의 응답스펙트럼 해석 26Ⅳ. 결과 및 고찰 291. 구조해석 결과 분석 292. 응답스펙트럼해석 결과 분석 33Ⅴ. 결론 44참고문헌 45
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