Full-Scale Study of the behavior of Tall Buildings Under Winds

虽然高层建筑是社会所承担的最具挑战性的项目之一，但高层建筑是少数几个建筑设施之一，其设计仅依赖于分析和比例模型，尽管基于基本力学和多年的研究和经验，但尚未全面系统地验证。为了解决这个问题，在芝加哥的几个高层建筑的结构系统是最常用的高层设计将仪器测量响应特性的作用下的风。仪器将包括加速度计和高精度全球定位系统。为了方便不受阻碍地访问实时测量，将开发一个基于Java的互联网框架，允许项目团队及其设计师，顾问和感兴趣的研究人员的咨询委员会从任何远程位置进行分析。随后的分析，总的来说，将提供有价值的洞察各种响应特性的高层建筑，并允许系统验证现有的设计实践，通过比较分析和风洞响应估计与全尺寸的观察。使用基于小波的系统识别的幅度相关的频率和阻尼估计将在不同的响应水平的动态特性上揭示新的光。

While high-rise construction serves as one of the most challenging projects undertaken by society, tall buildings are one of the few constructed facilities whose design relies solely upon analytical and scaled models, which, though based upon fundamental mechanics and years of research and experience, has yet to be systematically validated in full-scale. To address this issue, several tall buildings in Chicago whose structural systems are most commonly used in high-rise design will be instrumented to measure response characteristics under the action of wind. The instrumentation will include accelerometers and high precision GPS systems. To facilitate unhindered access to real-time measurements, a Java-based internet framework will be developed, permitting the project team, and its advisory board of designers, consultants, and interested researchers, analysis capabilities from any remote location. The subsequent analyses, in total, will provide valuable insight into a variety of response characteristics for tall buildings and permit the systematic validation of existing design practice through the comparison of analytical and wind tunnel response estimates with full-scale observations. Both amplitude-dependent frequency and damping estimates using Wavelet-Based System Identification will be made to shed new light on the dynamic characteristics at varying response levels.