两种简易可行的砖墙托换梁

Two kind simple and feasible transform beams in brick walls

介绍了两种承重砖墙托换梁,并给出了相关的设计计算方法,这两种托换梁具有受力明确、构造简单、便于施工等优点。

For lots of damaged arch bridges needing strengthening in our country, the advantage of applying the space finite element method （SFEM） to compute the existed or damaged arch bridge is discussed, which could be used to evaluate the damaged structure and provid the foundation for repair and strengthening more exactly. Combining the example of repairing one long-span damaged arch bridge, the entire pre-reinforcement and post-reinforcement bridge space FE models are established with SFEM, and the internal force and stability are computed. The result indicate the effectiveness of the strengthening scheme and the feasibility of the compute method given in the paper.