运用桥梁结构动力学与车辆动力学的研究方法，将车桥作为联合动力体系，建立了高速列车与大跨度斜拉桥的车桥耦合动力分析模型。以京沪高速铁路南京长江大桥3塔斜拉桥方案为例，分析了大跨度斜拉桥在ICE高速列车作用下的车桥动力响应特点；同时，基于合理的列车走行性评价指标，对高速列车通过大跨度斜拉桥时的走行安全性与舒适性进行了详细分析，初步探讨了大跨度斜拉桥用于高速铁路的可行性。

介绍了大跨度钢箱梁斜拉桥索梁锚固结构的4种常见连接型式：锚箱式连接、耳板式连接、锚管式连接与锚拉板连接。结合具体工程实例，对上述4种索梁锚固结构进行了静载试验和理论分析，详细比较了4种锚固结构的传力机理、应力分布、应力集中现象，以及改善应力分布、减小应力集中现象的一些措施，得到一些有益的结论，供桥梁设计者参考。

就车桥耦合振动的研究思路、车辆分析模型、桥梁分析模型、轮轨接触关系、激励源、数值计算方法6个方面，系统综述了20世纪60年代以来列车～桥梁耦合振动研究的现状与进展，总结在上述6个方面已取得的一些研究成果和结论，同时，指出目前研究工作中存在的尚待进一步完善的问题，提出了今后的研究方向。

论述了极限状态法应用于大跨桥设计所可取得的经济效益；讨论了增加斜拉桥刚性的措施；申述了对待焊接、栓接、疲劳及桥的动力行为诸方面的观点。

3In this paper, multi-layer/DR combination method is used to study the buckling behaviour of plates, giving a detailed discussion for the influence of the parameters, such as loading and boundary conditions of the plate, the slenderness of the plate, the mode of the residual eformation and the distribution of the residual stresses.

Expert system technology has been successfully applied to bridge design. ES-PDLB is an expert system for the preliminary design of long-span bridges. It can simulate design projects including bridge type, span layout, outline dimensions of cross-sections and construction method, after given the conditions of topography, geology and hydrology at the site of a bridge toe built, and traffic requirement on and under the bridge. The detailed description of this system will be presented in this paper.

the present paper outlines the large deflection elasto-plastic analytical results for thin square plates with initial imperfections subjected to in-plane loads. The elasto-plastic rigidities are calculated using a rigorous multi-layer approach. The governing equations are solved in an incremental form by applying dynamic relaxation method (DRM) as proposed by the author M, 21. based on the computational results, the paper discusses the plastici zation history of the panels.

The present paper very briefly outlines the so-called Dynamic Relaxation Method (DRM)which is found to be suitable in analysis of both geometrical and material nonlinearities using personal computers, and discuss an approach recently at SWJT for the automatic selection of interaction parameters in the DRM. The solution of a nonlinear truss-spring, the analysis of plate bending problems with large deflections under transverse loading, and the calculation of the ultimate load of plates under an in-plane load, using DRM with personal computers, are described.

本文对动态松弛法提出一优化参数自动选择程序，使解题所用机时只是有限元法或有限差分法的1/8至1/10。这法可用以推算板在面外荷载或面内荷载作用下的极限承载力。对于面内荷载是以下五种情况：纯压，纯剪，纯弯，剪和压，剪和弯，经用此法研究了极限承载力和下列参数间的关系：板的宽厚比，板的初始几何缺陷，板的残余应力，边界条件。以所推算的结果和英国的成果（理论值和试验值）及英国桥梁规范BS5400的规则相比，它们符合得使人满意。