强/台风作用下大跨空间索桁体系现场风压风振实测研究

为保证我国东南沿海地区大跨预应力柔性体系的抗风安全性,并为规范规程的进一步修订做准备,建筑工程学院针对强/台风多发地区实际、典型大跨空间索桁体系-乐清"弯月"体育场,进行现场风压风振实测,以获得足尺结构在真实建筑风环境下的风荷载和风致效应.一方面,这是研究大跨柔性体系强/台风作用下的风荷载特性、风致效应及机理最为直接和有效的手段,测试数据最具有科学研究和实际应用价值.另一方面,亦是深入研究其在强/台风作用下结构抗风设计实用方法的基础.若能取得创新性成果,可显著提升我国大跨预应力柔性体系的抗风设计研究水平.

Field measurement of wind pressure and wind-induced vibration of large-span spatial cable-truss system under strong wind or typhoon

In order to ensure wind-resistance safety of large-span pre-stressed flexible system in southeast coast area of China, and to prepare something for revising of current codes of practice or technical standards, the present paper conducts field of wind pressure and wind-induced vibration of a practical and typical large-span spatial cable-truss system-lunar stadium in Yueqing city. Wind loading and wind effects on full-scale structure under strong wind or typhoon in real architectural environment can be obtained directly and effectively. Field measurement is the best way to investigate the wind loading property ,wind effects, and wind-structure interactions of large-span flexible system. Measured data will be highly valuable for scientific research and practical design. On the other hand, it also provides the basis of wind-resistance safety design of this kind of tension structures. If any creative development, it would dramatically improve the research level of large-span pre-stressed flexible system in our country.