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| 桁腹混凝土梁桥的组合截面等效抗弯刚度 | |
| 引用本文： | 黄华琪,刘钊,张建东. 桁腹混凝土梁桥的组合截面等效抗弯刚度[J]. 结构工程师, 2011, 27(4): 73-77 |
| 作者姓名： | 黄华琪 刘钊 张建东 |
| 作者单位： | 1. 东南大学土木工程学院,南京,210096 2. 江苏省交通科学研究院有限公司,南京,211112 |
| 基金项目： | 江苏省自然科学基金(BK2009028) |
| 摘 要： | 为使桁腹混凝土梁桥能够采用基于统一截面的单梁模型进行结构分析,文章提出组合截面等效抗弯刚度的概念与算法.引入共同工作系数K来反映截面的组合作用强弱,推导了等效抗弯惯性矩的计算公式.结合桥梁的常规几何参数,通过有限元数值分析得到了在不同腹杆倾角、桁架节间数条件下的桥梁跨中挠度,运用挠度校准和数值拟舍,得到了共同工作系数K... |
| 关 键 词： | 组合梁桥 桁腹混凝土截面 等效抗弯惯矩 |
Equivalent Flexural Stiffness for Composite Section of Truss-Web and Concrete Bridges |
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| HUANG Huaqi,LIU Zhao,ZHANG Jiandong. Equivalent Flexural Stiffness for Composite Section of Truss-Web and Concrete Bridges[J]. Structural Engineers, 2011, 27(4): 73-77 | |
| Authors: | HUANG Huaqi LIU Zhao ZHANG Jiandong |
| Affiliation: | HUANG Huaqi1,LIU Zhao1 ZHANG Jiandong 2(1.College of Civil Engineering,Southeast University,Nanjing 200096,China,2.Jiangsu Transportation Research Institute Co.,Ltd,Nanjing 211112,China) |
| Abstract: | In order to employ the simple beam model to analyze the truss-web and concrete bridges,the concept and algorithm of equivalent flexural stiffness in composite section are presented.The consistency factor K was introduced to reflect the degree of composite action,and the formula for equivalent flexural moment of inertia was derived.Based on the essential possible configuration used in such bridges,the mid-span deflections were calculated by FEM for various geometrical parameters,such as the inclination angle... |
| Keywords: | composite bridge truss-web and concrete section equivalent flexural moment of inertia |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |