高桩梁板码头晃动原因分析和处理对策.pdf

2011 年2 月 水运工程 Feb. 2011 第2 期 总第450 期 Port Waterway Engineering No. 2 Serial No. 450 高桩梁板码头晃动原因分析及处理对策 1 2 1 徐卫军 ，雷国刚 ，厉泽逸 （1.长江勘测规划设计研究院，湖北武汉430072 ；2. 南京市水利建筑工程总公司一公司，江苏南京210036） 摘要：某高桩梁板码头在运营过程中出现明显的晃动现象。采用三维有限元数值动力分析方法，取码头的 1/2 排架系统 计算结构的自振频率，采用m 法模拟桩周土对桩的约束作用，用ANSYS 程序进行计算分析不同处理措施下码头第一振动频 率的提高值。计算分析表明：采取抛石固桩、桩内灌注混凝土和增设钢撑后，码头第一振动频率提高 10％～84％，能有效解 决码头晃动问题。 关键词：高桩码头；排架；斜桩；晃动；振动响应；自振频率 中图分类号：TU 31 文献标志码：A 文章编号：1002-4972 （2011）02-0058-05 Sloshing reasons and treatment measures of beam-slab piled wharf 1 2 1 XU Wei-jun , LEI Guo-gang , LI Ze-yi , (1. Changjiang Institute of Survey, Planning, Design and Research ，Wuhan 430010, China; 2. First Company of Nanjing Water Conservancy Construction Corporation, Nanjing 210036, China) Abstract: A beam-slab piled wharf appeared sloshing in the process of operation. Using three-dimensional finite element analysis, we computed the natural frequency of a half of the wharf bent system, simulated the restraint function of soil effecting piles by m method, and analyzed the wharfs first vibration frequency about different treatment measures by ANSYS software. The calculating and analyzing results show that through rubble filling, concrete pouring into the pile, and welding of steel pipe on the wharf bent, the first vibration frequency of wharf raises 10％～84％, and thus the problem of sloshing can be solved effectively. Key words: piled wharf; bent; inclined pile; sloshing; vibration response; natural frequency 某港