下梁

In this thesis, the influence of column force, joint hoop reinforcement, and repeat load on the stress and sheer bearing capability of inclined pressure bar is analyzed utilizing finite element software. In the case study, the column axial force's influence on the inclined pressure bar's equivalent width, stress and sheer bearing capability of RCFEN is obtained by changing the column force when modeling the RCFEN with ANSYS. In the former model, the joint hoop reinforcement influence on the equivalent width inclined pressure bar and the strength of RCFEN is achieved by changing the quantity of joint hoop reinforcement; the inclined pressure bar's equivalent width and the strength variation of RCFEN under cyclic load are gained by applying low frequency cyclic load on the inflection point of column and the middle of beam.

针对上述算例中的框架外节点采用ANSYS进行建模，运用有限元软件分析了柱轴力、节点箍筋、反复荷载对外节点斜压杆承载力、抗剪承载力的影响：改变柱轴力，研究了柱轴力对斜压杆的等效宽度、框架外节点斜压杆承载力、框架外节点斜压杆抗剪承载力的影响；在上述模型中，改变节点箍筋的数量，分析了节点箍筋对斜压杆的等效宽度、框架外节点强度的影响；在上述模型中，在柱反弯点和梁中点均进行低周反复加载，讨论了在反复荷载作用下，框架外节点的斜压杆的等效宽度、框架外节点强度的变化情况。

There are several factors including average altitude, southern slop of hills,gentle slops, under branches, southern Orientation of nests, near to water, nearby places for sandy bathing and covering woods nearby nests that decide the nesting selection of blood pheasant. There are significant differences among the nests of blood pheasants on the nearby vegetation in spite of arbor, shrub and herbage.

作者在血雉产卵期（4.28—5.9）采用跟踪调查的方法，对其巢穴与栖息地生境因子选择进行了调查，结果显示血雉巢穴选择主要生境如下：平均海拔2700米左右、梁下部、南坡、坡度平缓、巢向南、距水源近、巢周围有栖材，有能够用来沙浴的地方，位于树根、树桩下，防风雨、巢材是竹叶、树叶。

According to practical work condition, section of a three segment hoist boom is self-determined with SECWRITE commands, then a finite element model is directly established in ANSYS environment with ANSYS finite element analysis software. Using Beam44 beam unit and node degree of freedom coupling technique to simulate connecting between each boom section and conduct finite element analysis, calculated result of stress deformation for the boom is obtained. The result from digital simulation is in relative coincidence with theoretical analytic result and the nonlinear decline occurrence in boom bending moment curve is explained.

以ANSYS有限元分析软件为工具，按吊臂实际工况，运用SECWRITE命令自定义三节吊臂截面直接在ANSYS环境下创建有限元模型，使用Beam44梁单元和节点自由度耦合技术模拟各节臂的连接，进行有限元分析，得到吊臂应力变形数值计算结果，数值模拟所得结果与理论解析解相吻合，解释吊臂弯矩图出现非线性下降的原因。

This graduation primary of project coverage is: 2×80m bottom-road bridge continual steel truss girder bridge structure analysis and load experimental design.

猫(13)：本次毕业设计的主要内容是：2×80m下承式连续钢桁梁桥结构分析与荷载试验设计。

Considering the loading and boundary conditions of the model finite element calculation is carried out. Both for the working conditions of prestress and load, the finite element model of the box beam is approved to be suitable and correct by the actual test results.

考虑模型的载荷及约束进行有限元计算，在预应力和载荷两种工况下，利用实测结果论证了箱型梁的有限元分析模型是合适和准确的。

Based on the analysis results, a simplified design calculation method of steel box girder subjected to eccentric load is proposed.

在此基础上，提出了偏心荷载作用下钢板箱形梁的简化设计计算方法。

The article is used finite yuan the method builds his to emulate analytic model, the construction of imitate bridge, study successive bridge bracket is irrigated build construction each operating mode, analyse what each operating mode issues bracket to be out of shape reach stability, ordinal come the design of bracket of test and verify is reliable, provide reference for bridge construction.

文章利用有限元方法建立其仿真分析模型，模拟桥梁的施工，探究连续梁支架浇筑施工各工况，分析各工况下支架的变形及稳定性，依次来验证支架的设计是否合理可靠，为桥梁施工提供参考。

Based on great amount of structural steel spliced joint model experiments,related calculation formula have been derived and verified with theory and practice.The conclusions from the experiments will be useful for design and construction of prespliced joint for bridge structures.

通过大量结构钢拼接接头模型试验，得出不同状态下的实验结果，并据此推导出相关计算公式，从理论和实践中进一步验证其可行性，所得结论对预制拼接梁桥结构施工和设计有指导作用。

This paper describes in details the principle, the operation and the experience for modifying the down deflection of a fixed-girder for bucket wheel stacker/reclaimer and keeping its pre-designed up deflection by means of firing and pre-tension method.

详细介绍用火焰法和预拉力法矫正斗轮机固定梁下挠并保持其拱度的原理、操作方法及经验教训。

The main contents are as follows: Creating finite element model of cradle carriage, top carriage and trail of the howitzer. The structural static stress analysis of are dealt with finite element program system I-DEAS. For accuracy and computation cost, the nonlinear finite element structural dynamics model of the howitzer is created with different elements such as solid elements, shell elements and beam elements.

主要包括以下几个方面工作：建立了该炮摇架、上架和下架的三维有限元静力学模型，并应用I－DEAS有限元软件进行了强度分析；顾及计算准确性和计算成本，应用实体单元、壳单元和梁单元相结合的方法建立了该炮的非线性有限元结构动力学模型。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。