水道港口
水道港口
수도항구
JOURNAL OF WATERWAY AND HARBOR
2014年
4期
422-426
,共5页
朱立岩%刘红彪%张强%张飞
硃立巖%劉紅彪%張彊%張飛
주립암%류홍표%장강%장비
冲击荷载%船舶撞击%动力响应%高桩码头%数值模拟
遲擊荷載%船舶撞擊%動力響應%高樁碼頭%數值模擬
충격하재%선박당격%동력향응%고장마두%수치모의
impact load%ship impact load%dynamic response%high-piled wharf%numerical simulation
采用数学理论推导与动力时程仿真计算相结合的方式,对靠泊船舶撞击作用下高桩码头结构的动力响应及动力放大效应进行了研究,获得了多自由度结构在单点冲击荷载作用下的动力响应公式,推荐了数值计算时船舶撞击荷载的时程曲线类型及持时,获取了船舶靠泊撞击荷载下高桩码头结构的动力放大效应规律。计算与分析结果表明:码头结构设计时船舶撞击荷载的取值应充分考虑码头结构的动力放大效应;靠泊船舶撞击下的高桩码头结构对撞击荷载的动力放大系数推荐为2.0。
採用數學理論推導與動力時程倣真計算相結閤的方式,對靠泊船舶撞擊作用下高樁碼頭結構的動力響應及動力放大效應進行瞭研究,穫得瞭多自由度結構在單點遲擊荷載作用下的動力響應公式,推薦瞭數值計算時船舶撞擊荷載的時程麯線類型及持時,穫取瞭船舶靠泊撞擊荷載下高樁碼頭結構的動力放大效應規律。計算與分析結果錶明:碼頭結構設計時船舶撞擊荷載的取值應充分攷慮碼頭結構的動力放大效應;靠泊船舶撞擊下的高樁碼頭結構對撞擊荷載的動力放大繫數推薦為2.0。
채용수학이론추도여동력시정방진계산상결합적방식,대고박선박당격작용하고장마두결구적동력향응급동력방대효응진행료연구,획득료다자유도결구재단점충격하재작용하적동력향응공식,추천료수치계산시선박당격하재적시정곡선류형급지시,획취료선박고박당격하재하고장마두결구적동력방대효응규률。계산여분석결과표명:마두결구설계시선박당격하재적취치응충분고필마두결구적동력방대효응;고박선박당격하적고장마두결구대당격하재적동력방대계수추천위2.0。
Based on the theoretic derivation and dynamic time-history simulation method, the study was carried out on dynamic response and amplification effect of high-piled wharf excited by ship impact. From the research, the accurate structural dynamic response function, the time history type of ship impact and its duration were proposed, and the dynamic amplification principle of high-piled wharf was acquired. The results of calculation and analysis prove that the structural dynamic effect to ship impact load can not be ignored when designing high-piled wharf. And the amplification factor of high-piled wharf to ship impact load is about 2.0.