Multi-Purpose Non-Contact Three-Dimensional Strain and Displacement Measurement System

蒙特利尔理工学院拥有加拿大最大的结构工程实验室，也是世界上最顶尖的结构工程实验室之一。对建筑物、桥梁和大坝结构的关键部件进行了大规模试验，以更好地了解它们在使用荷载下的行为，直到在极限荷载条件下完全破坏。还开展了几个测试计划，以评估为提高基础设施的结构性能和耐久性而提出的创新结构系统的反应。结构响应的正确评估需要对试件所经历的变形和应变进行准确和可靠的测量。测试结果还用于验证和校准数值模型，这些模型用于通过研究附加参数的影响或评估整个结构系统的性能来补充测试程序。这些数值模拟必须精确地再现当结构接近失效时逐渐发生的变形、应变和裂缝，因此，高质量的实验数据对于开发和适当验证数值模型是必不可少的。

Ecole Polytechnique of Montreal houses the largest structural engineering laboratory in Canada and one of the top facilities of this type in the world. Large scale testing of critical components of building, bridge an dam structures are performed to better understand their behaviour under service loads up to complete failure under ultimate loading conditions. Several test programs are also carried out to evaluate the response of innovative structural systems proposed to enhance the structural performance and durability of infrastructures. Proper assessment of structural response requires an accurate and reliable measurement of the deformations and strains experienced by the test specimens. Test results are also used to verify and calibrate numerical models that are used to complement test programs by studying the effects of additional parameters or assess the performance of entire structural systems. These numerical simulations must precisely reproduce the deformations, strains, and cracks that progressively take place when the structure approaches failure, and high quality experimental data is therefore essential to develop and properly verify numerical models.