| 1. | Energy method for the geometric non - linear analysis of higher bridge piers
高桥墩几何非线性分析的能量法 |
| 2. | From the elasticity variational principle , the governing dynamic differential equations of the geometric non - linear beam with large deflection is deduced
摘要通过弹性力学变分原理建立了大挠度非线性梁的控制微分方程组。 |
| 3. | This paper is concentrated on the space geometric non - linear static analysis and vibration analysis of the long span plate - truss composite cable - stayed bridges . 1
本文是针对大跨径板桁结合斜拉桥的空间几何非线性静力分析及结构的动力分析两个方面而展开研究工作的。 |
| 4. | Finally , the author has made some suggestions and data about geometric non - linear effect and spatial self - bracing function on aseismatic design of multi - storey and highrise concrete frame structure
最后，对抗震设计中考虑几何非线性效应及空间相互作用对多高层框架结构的影响提供一些参考建议和资料。 |
| 5. | A space geometric non - linear static finite element analysis program about the long span plate - truss composite cable - stayed bridges is presented . not only it can be used to solve the space static analysis about the state of the dead load configuration ( geometry and internal forces ) , but also it can be used to analyze the internal forces and deformations of the whole construction course
基于以上理论，并结合斜拉桥的施工过程，编制了大跨径斜拉桥的空间几何非线性静力分析程序，既可用于斜拉桥成桥状态的空间静力分析，也可结合斜拉桥的具体施工过程，进行施工过程中的内力与变形状态的跟踪分析。 |
| 6. | Abstract : based on the principle of mininmum potential and using rayleigh - ritz method , the geometric non - linear analysis of higher bridge piers was solved in this paper . the new concept of equivalent horizontal force proposed by the author may be casily to calculate the second effect , which was produced due to the vertical forces and resisted by the piers and rubber pad bearings incorporately . the simple formula in this paper are applicable to calculate by hand , understood clearly without computation of successive iteration , higher precision and graspable easily for the disigmer therefore it has the practical significance
文摘:根据最小势能原理，用瑞雷-里兹法解决了高桥墩的几何非线性分析问题；其次，提出了等效水平力的新概念，可以方便地解决桥墩和板式橡胶支座联合抵抗垂直力所产生的二次效应问题.笔者提出适合于手算的简便计算公式，概念明确，勿须迭代运算，精度较高，易为设计人员掌握，因此具有实用价值 |
| 7. | In this thesis , it is the first time that both 3d analysis concerning material and geometric non - linear and test research have been carried on the staggered truss system . supported by the science and technical research foundation of ministry of education ( no . 99089 ) , the national natural science foundation ( no . 50078021 ) and college doctor foundation of ministry of education ( no . 2000053203 ) , this thesis is aimed at offering convicting evidence for the coming 《 technical specification for steel structure of light - weight building systems 》
本文结合教育部科学技术研究重点项目(项目号99089 ) ，和国家自然科学基金(批准号50078021 ) 、高校博士点基金(批准号2000053203 )等资助项目，首次对交错桁架结构体系展开空间三维的二阶弹塑性全过程分析和模型试验研究，旨在为该结构在工程中的应用提供设计依据，为我国制定《轻型房屋钢结构技术规程》提供理论基础。 |
| 8. | It is studied in this paper by large - scale universal program ansys the problem about geometric non - linear effect on earthquake - resistant behavior of multi - storey and highrise concrete frame structure under strong - motion earthquake and is also analyzed in full spatial self - bracing function which is ignored by planar model of multi - storey and highrise concrete frame structure
本文主要运用大型通用有限元程序ansys研究几何非线性效应对多高层混凝土框架结构在强震作用下抗震性能的影响问题，另外，对多高层混凝土框架结构取平面模型所忽略的空间相互作用也详加分析。 |
| 9. | Three circumstances on the geometric non - linear analysis are considered : the sag phenomenon of cables the nonlinear behavior of bending members and the geometry change due to large displacement . the non - linear behavior of cables is verified by introduced the ernst cable modulus of elasticity and cr formation is applied to analyze the non - linear of beams . an incremental - iterative method based on the newton - raphson method is adopted here to solve the non - behavior equations
几何非线性分析主要考虑三个方面：索的垂度效应、梁柱效应和结构大位移，其中：索的非线性分析采用ernst弹性模量对索材料的弹性模量进行修正，计及索的垂度效应的方法；梁单元的非线性分析采用cr列式法，计算中采用基于newton - raphson法的增量迭代方法求解非线性方程组。 |
| 10. | Firstly , related to the problem about many kinds of geometric non - linear factors and shear deformation which are not differentiated definitely in a lot of studies , several kinds of beam element stiffness matrices respectively corresponding to geometric non - linear factors and shear deformation are derived as far as planar beam element is concerned and geometric non - linear factors of beam element in frame structure are analyzed systematically
本文首先针对众多研究中对多种几何非线性因素及剪切变形等不加以明确区分的问题，以平面杆单元为例，分别推出与多种几何非线性因素及剪切变形相对应的杆单元刚度矩阵，系统阐述框架分析中杆单元的几何非线性因素。 |
