[1]贾远林,陈世鸣,王新娣..预应力组合梁在负弯矩作用下的塑性铰长度研究[J].郑州大学学报(工学版),2009,30(03):5-8.[doi:10.3969/j.issn.1671-6833.2009.03.002]
JIA Yuanlin,Chen Shiming,Wang Xindi.Study on plastic hinge length of prestressed composite beam under negative bending moment[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):5-8.[doi:10.3969/j.issn.1671-6833.2009.03.002]
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预应力组合梁在负弯矩作用下的塑性铰长度研究(
)
《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]
- 卷:
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30卷
- 期数:
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2009年03期
- 页码:
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5-8
- 栏目:
-
- 出版日期:
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1900-01-01
文章信息/Info
- Title:
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Study on plastic hinge length of prestressed composite beam under negative bending moment
- 作者:
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贾远林; 陈世鸣; 王新娣.
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同济大学,土木工程学院,上海,200092;同济大学,建筑设计研究院,上海,200092, 同济大学,土木工程学院,上海,200092
- Author(s):
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JIA Yuanlin; Chen Shiming; Wang Xindi
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- 关键词:
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预应力组合梁; 负弯矩; 塑性铰长度; 转动能力; ABAQUS
- Keywords:
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- DOI:
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10.3969/j.issn.1671-6833.2009.03.002
- 文献标志码:
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A
- 摘要:
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为了研究体外预应力组合粱在负弯矩作用下的塑性铰长度,采用悬臂梁模型,运用有限元方法对截面支撑条件、跨高比及几何性质对塑性铰长度等参数的影响进行了分析.分析结果表明,组合梁在负弯矩作用下的力学性能受稳定控制,其支座单边塑性铰长度约为0.5倍铜梁腹板高度,并不随截面几何性质、加载方式等的改变而明显变化.
- Abstract:
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In order to study the plastic hinge length of in vitro prestressed combined millet under the action of negative bending moment, the influence of cross-section support conditions, cross-height ratio and geometric properties on plastic hinge length and other parameters was analyzed by using the cantilever beam model. The analysis results show that the mechanical properties of the composite beam under the action of negative bending moment are controlled by stability, and the length of the unilateral plastic hinge of the support is about 0.5 times the height of the web of the copper beam, which does not change significantly with the change of cross-section geometry and loading mode.
更新日期/Last Update:
1900-01-01