从简支梁桥恒载弯矩图出发,逐步演变到悬臂梁和连续梁桥,再根据连续梁桥的恒载弯矩图,通过不同弯矩零点的组合,演变出工程上常用的悬臂梁桥、T构刚构桥和连续刚构桥,具有力学概念清晰、教学内容紧凑等优点,可以有效地节省教学用时。

According to moment diagram of dead load for simplysupport beam,cantilever beam and continuous beam types are gradually developed. With respect to moment diagram of continuous beam bridge,through different moment zero point combinations,familiar cantilever, Tframe rigid and continuous rigid beam bridge type are deduced. The teaching methods have some advantages of clear concept, compact content and shorter class hour.