Stress estimation to zhuhai opera house based on monitoring measurements

Zhuhai Opera House is being built at Yeli Island in Zhuhai, China, which safety is significant to such public structure. Because of the wind effects, the structural health monitoring system was planned and is being implemented, in which the stresses, the temperatures, the deformations, the accelerations, the wind pressure and wind speed are planned to be monitored in construction and service phases. The stress estimation method to Zhuhai Opera House based on measurements including temperatures, wind pressures, stresses is proposed. The wind load and temperature effects are going to be estimated firstly, which are accompanied by the structural analysis using finite element model. Meanwhile, the stresses distribution of the structure can be obtained from the structural analysis using finite element model. The monitored stresses and the calculated stresses at the same placement are compared in order to evaluate the effectiveness of the calculation; the differences between them are the reasons to adjust the estimated wind load and temperature effects. And then, the stress estimation can be made by the calculated stress distribution of the structure. The steel structure of Zhuhai Opera House is taken as an example to illustrate the processes and the effectiveness of the proposed method.