| 长型大截面地下结构的横向自由振动方程 |
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| 引用本文： | 陈灿寿,戚承志,陈剑杰,钱七虎.长型大截面地下结构的横向自由振动方程[J].世界地震工程,2011,27(1). |
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| 作者姓名： | 陈灿寿 戚承志 陈剑杰 钱七虎 |
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| 作者单位： | 1. 解放军理工大学,工程兵工程学院,南京,210007
2. 北京建筑工程学院,土木交通学院,北京,100044;北京市工程结构与新材料研究中心,北京,100044 |
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| 基金项目： | 北京市教委重点项目; 北京市自然基金项目(KZ200810016007); 国家自然基金项目(50825403); 国家973重大项目(2010CB732003) |
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| 摘 要： | 文中综合考虑了内阻尼、外阻尼、剪切变形、横截面转动惯性、轴力和地基模型参数的影响,推得了弹性地基梁的一般自由振动方程。由这一方程可以得到一系列特殊情况下地下结构的自由振动方程。这一方程不仅能从理论上扩展了Timoshenko粱理论,而且在后续的研究中,为研究上述因素对于地下结构的自由振动和强迫振动的影响奠定了理论基础。
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| 关 键 词： | 自由振动 长型大截面地下结构 影响因素 |
Free lateral vibration equation of long large cross-section underground structure |
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| CHEN Canshou,QI Chengzhi,CHEN Jianjie,QIAN Qihu.Free lateral vibration equation of long large cross-section underground structure[J].World Information On Earthquake Engineering,2011,27(1). |
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| Authors: | CHEN Canshou QI Chengzhi CHEN Jianjie QIAN Qihu |
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| Institution: | CHEN Canshou1,QI Chengzhi2,3,CHEN Jianjie1,QIAN Qihu1 (1.Engineering Institute of Cops of Engineers,PLA University of Science and Technology,Nanjing 210007,China,2.School of Civil and Communication Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,3.Beijing Research Center for Engineering Structures and New Materials,China) |
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| Abstract: | The general free lateral vibration motion equation of a long large cross-section underground structure is derived with the comprehensive consideration of internal damping,external damping,shear deformation,cross-sectional rotation inertia,axial force and model parameters.Free motion equations for several special cases may be obtained from this general equation.In this way,not only the Timoshenko's beam theory is extended,but also the basis for studying the influence of different factors on free and forced v... |
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| Keywords: | free vibration long large cross-section underground structure influential factors |
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