基于OBE-PBL模式的结构力学教学改革——以高速铁路线路平纵断面参数设计为例

Teaching Reform of Structural Mechanics Based on the OBE-PBL Model—Taking the Design of Parameters for the Plane and Profile of High-Speed Railway Alignments as an Example

摘要: 针对当前结构力学课程教学中存在的理论脱离实际、学生解决复杂工程问题能力不足等问题，本文以“高速铁路线路平纵断面参数设计”这一真实工程任务为驱动，构建了基于成果导向教育(OBE)与问题驱动学习(PBL)的融合教学模式。该模式以学生最终的学习成果(能力产出)为目标，反向设计教学内容与环节。通过引入教师亲身参与的成渝中线高速铁路等国家级项目案例，将线路设计中桥梁、隧道、路基地基的力学分析作为PBL项目，旨在激发学生的学习兴趣，预期能够提升其将结构力学理论知识应用于解决复杂工程问题的能力、创新思维及团队协作精神，同时在教学过程中潜移默化地培养学生的工匠精神与职业责任感。

Abstract: In response to prevalent issues in current structural mechanics pedagogy—such as the disconnection between theory and practice and students’ insufficient capability to address complex engineering problems—this paper develops an integrated teaching model grounded in Outcome-Based Education (OBE) and Problem-Based Learning (PBL). This model is driven by the authentic engineering task of “the Design of Parameters for the Plane and Profile of High-Speed Railway Alignments.” It adopts students’ ultimate learning outcomes (competency development) as the objective and designs teaching content and procedures in reverse. By incorporating national-level project cases, such as Chengdu-Chongqing Middle Line High-Speed Railway, in which the instructors have personally participated, the mechanical analysis of bridges, tunnels, and subgrade foundations in route design is utilized as PBL projects. This approach aims to stimulate students’ learning interest and is anticipated to enhance their ability to apply structural mechanics theory to solve complex engineering problems, foster innovative thinking and teamwork, while simultaneously cultivating a spirit of craftsmanship and professional responsibility throughout the instructional process.