提出了考虑剪切变形时变截面梁弯曲和稳定计算的传递矩阵法。
The transfer matrix method for the bending and stability of the variable section beams with shear deformation is presented.
在建立有限元模型中，广泛采用变截面梁和异型梁是本模型的一大特色。
Taper section and custom section beams are widely adopted in the process of model set-up, which is a feature of this paper.
导出了变截面梁单元的单元刚度矩阵、单元等效节点荷载和单元一致质量矩阵。
The stiffness matrix, equivalent nodal load and consistent mass matrix are derived for the beam element with variable cross-section.
提出了新的变截面梁临界弯矩计算式，其表达形式与等截面梁的公式相同，便于工程应用。
A new critical moment formula of tapered beam is proposed, which is similar to the expression for beams with uniform cross-section.
与一般的筏板基础有所不同，由于有柱墩，有肋梁墩式筏板基础梁的内力需按变截面梁计算。
Different from general raft foundation, the inner force of ribbed beam is calculated as variable section because of the stump.
将有限元分析与试验设计、神经网络、遗传算法等结合起来对该变截面梁结构进行了抗撞性优化设计。
The relationships between energy absorption and the proposed variables are revealed and the optimal results are verified through the finite element analysis of thin-walled rail's collision.
变截面梁的整体稳定研究分析是目前国内外学者所追求的一个研究热点，国内对该热点的研究还较缺乏。
At present, stability analysis of beams with tapered sections is a study hotspot that many domestic and overseas scholars are pursing. It is lack of study on this hotspot in our country.
根据输电线路钢管杆的受力特点，将钢管杆简化成受复杂载荷作用的变截面梁的纵横弯曲和扭转问题，并采用传递矩阵方法进行分析求解。
Based on the stress performance of steel pole of transmission line, the steel pole is simplified as a matter of cross bending and torque with variable sections and complex loads.
采用有限元法对门式钢刚架结构中的变截面梁进行了数值模拟，分别得到其在ISO标准升温曲线和局部火灾下的温度场变化，考察了升温曲线及火源位置对变截面梁升温的影响。
Tapered beam of a steel portal frame is numerically simulated by the finite element method, and the changes of temperature field under the ISO time-temperature curve and local fire are obtained.
并对变截面弹性地基梁的计算进行研究，得出计算公式。
The calculation of changing section foundation beams is also studied, and the calculation formulae are worked out.
本文从非棱柱形梁的弯曲理论出发，推导出了变截面刚架元的单元刚度矩阵和等效结点载荷。
Based on the theory of the bending of non-prismatic beam, the paper has derived a rigidity matrix and the equivalent node load of the rigid-frame element with variable sections.
推导出各种地基弹性地基模型及变截面的地基梁的计算公式，形成了一个较完整的计算系统。
Accordingly, the various elastic foundation beams models and the formulae of foundation beams with changing section can be worked out to develop a calculation system.
此法可用于求解在各种载荷、支承及联接条件下的变截面多跨梁。
This method may be used as a solution for a multi-span beam with variable cross section under conditions of various kinds of loads, supports and junctions.
针对工程结构中广泛应用的变截面构件，提出了一个变截面平面梁单元，推导了其单元刚度矩阵和等效节点荷载公式。
A nonuniform beam finite element is presented and the element stiffness matrix and equivalent joint load are derived to analyse nonuniform members used increasingly in engineering structures.
基于换算截面法，运用变分原理对开裂混凝土连续箱梁的剪力滞效应进行了分析，并与规范方法和试验结果进行了对比。
Based on transformed section method, shear lag effect of continuous box girder was analyzed adopting variational principle, and compared with design code and experimental result.
古城大桥是一座下承式单承载面钢管混凝土系杆拱与变截面连续梁组合体系桥梁。
Gucheng bridge is a steel tube concrete bowstring arch and variable cross section continuous beam composite system through bridge with single load plate.
讨论变截面悬臂梁的形状优化。
Shape optimization of a taper cantilever beam is presenting.
通过建立钢板弹簧的曲梁模型，应用虚力原理求解位移，得到了变截面钢板弹簧刚度的几何非线性特性。
A nonlinear characteristic of taper leaf springs is presented by using the model of curved beam and the principle of virtual force.
对一座铁路三跨连续PC刚构桥变截面宽幅箱梁进行了空间应力分析。
There is an analysis of spatial stress on variable cross-section wide box girder of three-span continuous PC rigid frame bridge in the paper.
在设有大吨位吊车系统的重型厂房中，吊车梁用钢量所占比例较大，对吊车梁的优化设计对工程造价影响很大，大跨多跨重型厂房吊车梁宜采用突缘变截面简支结构。
The weight of steel for crane beam has a great proportion in the total amount consumed in the construction of the heavy-duty plant with large-tonnage cranes.
它适用于变截面的剪力墙，墙身可不到顶，各层刚架柱和梁的刚度可不相同等情况。
It is applicable to shear walls with varying cross-sectional areas. The shear walls may not reach to the top storey.
本文结合钱塘江二桥应用变分法推导了变截面箱形梁剪滞效应的微分方程并利用有限差分法求得解答。
On the basis of the variational method, a finite difference solution is presented for shear lag effect in Qiantang River Bridge with box section of varying depth.
本文将对高架桥预应力混凝土变截面连续箱梁施工质量控制及技术进行论述。
This text will turn quality control and technology into section continuous case roof beam and construct to enter to the overpass prestressing force concrete Walk and describe.
结合实际箱梁算例，分析预应力混凝土变截面连续箱梁的挠曲性能。
The flexural behavior of the prestressed concrete continuous box girder with variable cross-sections is analyzed through a practical example.
在三维退化梁单元的基础上，引入几何非线性，推导出计算任意变截面压杆稳定问题的有限元列式。
Based on the 3_d deteriorated girder element, the formulae of FEM for elastic stability of variable cross_section compression bar concerning geometrical nonlinearity have been derived.
对于大部分门式刚架，其柱子和梁通常都设计成变截面，以适应弯矩的变化，达到节约钢材的目的。
Many portal frames are designed with tapered section so as to adapt to the change of the bending moment and save the steel.
变截面焊接钢吊车梁疲劳裂缝主要是由于变截面处有很大的应力集中所产生的。
The main form and cause of fatigue failure of steel crane beam are analyzed first, and focused the welded steel crane beam.
本文提供了一种求解变截面悬臂梁在任意载荷作用下最大正应力及最大变形的方法。
It may solve the problems of maximum stress and maximum deformation of cantilever beams with variable cross section under arbitrary loads.
本文提供了一种求解变截面悬臂梁在任意载荷作用下最大正应力及最大变形的方法。
It may solve the problems of maximum stress and maximum deformation of cantilever beams with variable cross section under arbitrary loads.
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