| 薄壁钢管混凝土构件固有振动特性研究 |
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| 引用本文： | 王元丰,许士杰.薄壁钢管混凝土构件固有振动特性研究[J].北京交通大学学报(自然科学版),1998,22(4):2. |
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| 作者姓名： | 王元丰 许士杰 |
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| 作者单位： | 北方交通大学土木建筑工程学院 |
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| 摘 要： | 根据钢管混凝土构件的变形特点，首次构造了钢管混凝土单元．这种单元具有以下特点：单元为一维杆梁单元；可以考虑钢与混凝土两种材料的组合；适合于薄壁结构的内力与变形；单元的截面可以变化；轴线可以是曲的．并利用此单元对一定数量的薄壁钢管混凝土构件进行了分析，获得自振频率和模态等固有振动特性．
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| 关 键 词： | 钢管混凝土单元 薄壁结构 固有振动 |
Study on Free Vibration of Thin-Walled Concrete Filled Steel Tubular Members |
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| Wang Yuanfeng\ Xu Shijie.Study on Free Vibration of Thin-Walled Concrete Filled Steel Tubular Members[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,1998,22(4):2. |
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| Authors: | Wang Yuanfeng\ Xu Shijie |
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| Abstract: | Based on the deformation characteristics of concrete filled steel tubular members, the paper constructs a new element for this kind of members, which has the following distinguishing features:it is one dimensional member and suitable for the thin walled member with variable corss section and curved axis, in addition, it can treat the situation that member consists of two kind of materials:steel and conctrete. This element has been employed to study the free vibration of some thin walled members, firstly obtaining the natural frequencies and modes of these members. |
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| Keywords: | element of concrete filled steel tubular members\ thin walled structure\ free vibration |
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