Enhancement of multi-scale integrated analysis for real concrete structure

点击翻译按钮获取中文摘要

In order to simulate real concrete structures in full scale by the multi-scale integrated analysis, the analytical platform is enhanced. The excessive deflection of PC viaducts are reproduced successfully by this analytical platform. The analytical results show that the difference of time-dependent volumetric change caused by steel confinement and thermo-dynamical state between upper and bottom flange is the key of excessive deflection. Based on this fact, new design concept that giving different concrete property between upper and bottom flange to control the time dependent deflection is proposed, and its validity is confirmed. The change of structural performance with corrosion is also simulated by the system. The result shows that the degradation of structural performance with time is faster than expected because of the failure mode shift with deterioration.