钢筋混凝土刚架拱桥横向联系的内力分析

利用有限元理论和软件对典型的钢筋混凝土刚架拱桥建立了空间结构分析模型，对其空间结构性能，尤其是横向联系的内力进行了分析计算，并与传统的设计理论——弹性支承连续梁简化方法进行比较分析，最后用典型的桥梁进行实验研究和论证。结果表明该结构桥梁的横向联系设计合理与否，直接关系到结构的整体受力与安全，是影响其承载力的重要因素，在设计分析中应引起足够的重视。

Analysis of the Transverse Connection Members of R.C. Rigid-frame Arch Bridge

By using 3-dimension finite element method, a typical R.C.rigid-frame arch bridge model is established and the structure behavior, especially the transverse internal force of the structure is analyzed. Comparison analysis is completed by the classical design method-simplified method of continuous beam on elastic supports. In the end a typical bridge field test is studied to prove the validity. The results show that whether or not the transverse connection design of the structure is reasonable is directly correlated with the whole capacity of canting load and safety of the bridge structure and is an important factor influencing the carrying load capacity. It is recommended that more attention be paid to the design and analysis of transverse structure.