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摘要:
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针对大水位差全直桩框架码头多层系缆层以及相对于传统高桩码头存在纵横撑的两大特点,应用sap2000对结构多种水平撞击力工况进行了数值分析。通过计算各排架基底剪力与撞击力的比值,得到了各工况下排架的水平撞击力分配系数。分析结果表明:撞击力位置越低,荷载分配越集中,分配系数越大;纵撑增大了结构的纵向刚度,改变了荷载传递途径,有利于水平撞击力的均匀分配;同时,横撑有利于撞击力的横向传递,但不利于撞击力的纵向分配。
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A numerical analysis by sap2000 to the structure in many horizontal impact force cases is made against All-vertical-piled wharf two traits with great height of water that is multi-layered moors and the presence of lateral and lengthways braces which are not shown in traditional high-piled wharf.Horizontal impact force's partition coefficient in each load case is obtained through calculating ratio between framed bent's shear force of bottom with impact force,it is concluded that the lower impact force's location,the more centralized load's partition and the larger partition coefficient;lengthways braces augment structure's lengthways stiffness,change load's pipeline,and make for the well-proportioned partition of horizontal impact force;meanwhile,lateral braces make for impact force' lateral transfer,but make against its lengthways partition.
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基金项目:
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重庆市自然科学基金重点项目(CSTC,2007BA6020)
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作者简介:
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参考文献:
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[1]重庆交通大学.重庆港寸滩集装箱码头关键技术研究分析报告[R].重庆:重庆交通大学,2006.
[2]JTJ291-98,高桩码头设计与施工规范[S].
[3]北京金土木软件技术有限公司,中国建筑标准设计研究院.Sap2000中文版使用指南[M].北京:人民交通出版社,2006.
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