Development of a Data Base for the Response Characteristics of Selected Mexico City Buildings Under Ambient Excitations

该项目的目的是验证墨西哥城典型建筑物目前的动态特性并测量这些建筑物的阻尼特性。 选择一栋钢结构建筑和四栋钢筋混凝土建筑，并使用地震计和模拟数据记录仪监测它们的环境响应。 这些环境数据的模拟测量值经过统一处理和分析，以了解光谱特性和模态特性。 此外，将分析和实验结果关联起来，以确定良好的设计特征、关键元件中的应力分布、扭转效应、平面内柔性的影响以及观察到的损伤和应力强度之间的关系。

The objective of this project is to validate the present dynamic characteristics of typical Mexico City buildings and to measure the damping characteristics of these buildings. One steel and four reinforced concrete buildings are chosen and their ambient responses are monitored using seismometers and analog data recorders. These analog measurements of ambient data are uniformly processed and analyzed for spectral characteristics and modal properties. Further, correlation of analytical and experimental results is made to identify good design features, stress distribution in critical elements, torsional effects, effects of in-plane flexibility, and relationship between observed damage and stress intensity.