《地下铁道》课程中钢筋混凝土轴心受力构件正截面承载力计算的教学设计和实践

Instructional Planning and Its Practice for Calculating the Load Bearing Capacity of Normal Cross-Section of Concrete Members Subject to Aixial Froces in the Course Entitled Metro

摘要: 本文根据为本科学生而开设的《地下铁道》课程中钢筋混凝土轴心受力构件正截面承载力计算的教学内容，分析和提出了易于学生理解和掌握的钢筋混凝土轴心受力构件中纵向钢筋计算和设计的推演方法，并通过对混凝土轴心受力构件在受拉和受压状态下静力平衡关系的分析，提出了混凝土轴心受力构件正截面承载力计算方法的教学设计。通过在《地下铁道》课程中的教学实践表明，所提出的教学设计不仅有利于提高学生开展与地下铁道结构有关的混凝土轴心受力构件中钢筋的设计能力，而且还有助于引导学生树立创新思维的意识，以期实现预定的教学目标。

Abstract: Drawing upon the instructional contents for calculating the load-bearing capacity of normal cross-section of reinforced concrete (RC) members subject to axial forces, as delivered in the course entitled “Metro” for undergraduates, a deductive methodology for calculating both the tension reinforcement in axially tensioned members and the compression reinforcement in axially compressed members are analyzed and presented to be easily comprehended and mastered by undergraduates in this paper. Furthermore, through a systematic investigation into the static equilibrium states of concrete members under axial tensile and compressive loading, a pedagogical scheme for calculating the load-bearing capacity of axially loaded RC members is developed. Practical application of this pedagogy in the course entitled “Metro” demonstrates that it not only effectively augments the capabilities of the undergraduates to design the reinforcement detailing of axially loaded RC members related to reinforced concrete structures used in metro rail system, but also help guide undergraduates to setting up awareness of making innovative thinking, as well as to achieve the teaching aims as planned.