两侧加劲钢板深梁弹性屈曲分析
钢板深梁填充钢框架体系是一种新型的抗侧力结构体系,钢板深梁通过改变跨高比等参数不仅可以实现结构初始刚度能够在一定范围内调幅,而且使抗侧构件更容易安装或拆卸。以两侧加劲钢板深梁为研究对象,对其弹性屈曲性能进行了有限元分析,讨论不同加劲刚度对不同跨高比钢板深梁的加劲效果,并提出不同跨高比钢板深梁在加劲约束作用下的等效屈曲系数和嵌固系数。结果表明,跨高比越大,等效屈曲系数越小,实现屈曲模态转变所需加劲刚度越大,加劲效果越好。求得在屈曲模态转变点时,不同跨高比两侧加劲钢板深梁的加劲抗弯刚度比。提出对于跨高比在区间[0.5,1.0]的两侧加劲钢板深梁,嵌固系数可取1.23;对于跨高比在区间[1.0,2....
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| Main Authors: | 胡壹, 江力强, 郑宏 |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Progress in Steel Building Structures, Tongji University
2016-01-01
|
| Series: | Jianzhu Gangjiegou Jinzhan |
| Subjects: | |
| Online Access: | http://steelpro.tongji.edu.cn/thesisDetails#10.13969/j.cnki.cn31-1893.2016.06.003 |
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