【摘要】 让建筑学专业的学生掌握RC梁由拱作用和梁作用共同形成的原理是有难度的。在"建筑结构"课程教学中,为了让学生较好地理解RC梁的正截面破坏问题,可假设从单筋矩形截面梁中分离出一个混凝土受压拱身与钢筋拉杆形成的组合拱,然后借助拱机理来讨论截面产生抗弯承载力的原理及三种正截面破坏类型的区别,对帮助学生加深理解具有一定的效果。更多还原

【Abstract】 It is difficult for architecture students to master the principle that the flexural resistance of RC beam are formed by arch action and beam action. In the teaching lesson of "Architecture Structure", in order to help students for better understanding of the types of flexural failure of RC beam, it can be assumed that a composite arch separated from a single-reinforcement rectangular section beam,it formed by a concrete compressive arch body and tensioned reinforcement.Then discuss the principle of the flexural resistance of the section and the difference between the three types of flexural failure according to the arch mechanism. This method can help students to deepen their understanding of this knowledge point.更多还原