[关键词]
[摘要]
在材料力学的教学中,案例教学是一种行之有效的方法,可以激发学生学习的兴趣和主动性。当今主流的材料力学教材均以机械相关的结构或构件为教学背景,很少涉及土木工程案例。历史悠久的土木工程,拥有众多的建设成就,也存在众多的失败案例。如果作为教学案例展示给土木工程专业的大学生,不仅可以让材料力学的课程教学充满活力,还可使学生更快的接触专业知识。本文依据材料力学课程安排,分别列举了与土木工程相关的几个典型案例,包括:塔科马悬索桥扭转垮塌事故、暴雪后合肥市公交站台顶棚坍塌事故、南宁市深基坑坍塌事故、加拿大魁北克大桥事故以及津巴布韦女游客蹦极坠落事故等。这些案例分别对应材料力学课程中的扭转变形、压弯组合变形、强度理论、压杆稳定以及动载荷等章节,可为授课教师课堂教学提供参考。
[Key word]
[Abstract]
In the teaching of material mechanics, case teaching is an effective method to stimulate students" interest and initiative in learning. At present, mainstream textbooks for materials mechanics are based on mechanically related structures or components, and rarely involve civil engineering cases. In the long history of civil engineering, there are many construction achievements and also many failure cases. If these civil engineering cases are selected as teaching cases, they can not only make the course full of vitality, but also enable students to get more professional knowledge. Based on the curriculum of material mechanics, several representative cases related to civil engineering are listed in this paper, including the torsion collapse of Tacoma Narrows Bridge, the collapse accident of bus shelter ceilings after snowstorm in Hefei, the collapse of deep foundation pit in Nanning, the collapse accident of Quebec Bridge in Canada, and the bungee jump accident of a female tourist in Zimbabwe. The above cases refer to several chapters in the course of Material Mechanics, respectively the torsional deformation, combined bending and deformation, strength theory, stability of the compression bar and dynamic load, and so on.
[中图分类号]
N42
[基金项目]
国家自然科学基金项目(面上项目,重点项目,重大项目)