桥梁结构模型试验教学平台设计与开发

Design and development of bridge structure model test teaching platform

针对桥梁结构跨度大、结构形式多样、同时承受静、动载以及节点构造复杂等特点,利用桥梁工程、机械设计、结构力学以及结构试验等技术开发了一种用于模拟桥梁工程结构试验的教学实验平台,平台主要由5种典型桥梁模型、导轨、牵引机构、移动加载小车、模态测试分析系统组成。可对桁架桥、上承式拱桥、中承式拱桥、斜拉桥、悬索桥等桥梁模型开展教学实验。平台可直观展示各种桥梁的结构组成与结构内力传递特点,进行桥梁在静、动载作用下的力学响应测试,对桥梁的结构模态进行分析。平台实现了桥梁结构力学概念的可视化,激发了学生探索解决桥梁工程实际问题的兴趣。

According to the characteristics of bridge structure, such as large span, various structural forms, bearing static and dynamic loads at the same time, and complex joint structure, a teaching experiment platform for simulating the bridge engineering structure test is developed by using the technologies, such as bridge engineering, mechanical design, structural mechanics, structural test technology, etc. This platform is mainly composed of five typical bridge models, guide rail, traction mechanism, mobile loading car and modal test and analysis system, and it can carry out teaching experiments on truss bridge, deck arch bridge, half through arch bridge, cable-stayed bridge, suspension bridge and other bridge models. This platform can directly display the structural composition and internal force transfer characteristics of various bridges, test the mechanical response of bridges under static and dynamic loads, and analyze the structural modal of bridges, which has realized the visualization of the concept of bridge structural mechanics and stimulated students’ interest in exploring and solving practical problems of bridge engineering.