ABSTRACT
In this day and age, Structural Health Monitoring (SHM) has become an indispensable tool to determine the safety and normal operation of structures in service. Among numerous SHM methods, piezoceramic transducers have been widely utilized (Liao et al. 2011, Yan et al. 2009). The focus of recent researches has generally been on damage identification and evaluation of concrete structures (Song et al. 2007, Moslehy et al. 2010, Howser et al. 2011). Some piezoelectric-based monitoring methods have also been proposed to monitor early age concrete strength, water seepage depth (Liu et al. 2013, Zou et al. 2014), and damage caused by cyclic combined loadings or seismic excitations (Gu et al. 2010). However, it should be concerned that there are a great deal of influencing factors existing in practical monitoring, like temperature, boundary, and loading conditions, which may bring in significant effects during the monitoring process (Zou et al. 2015). Specifically, the construction load has not been taken into consideration during monitoring process. Especially for the important columns downstairs, there are a lot of load increments in the construction process of a high-rise building (Du et al. 2015). The question whether the construction load brings in negligible impact on the stability of smart aggregate is not fully discussed.
