Finally, to investigate all signals, i.e. First, the best segment of required data, including acceleration response and wind speed is found, and then wavelet transform is used to eliminate the noise and find proper and wanted natural frequency. A method is suggested to extract the frequency of structures automatically. Two super-tall buildings, including Milad Tower, which is located in Tehran, Iran, and Canton Tower, which is located in Guangzhou, China, are used as examples to estimate the ability of multivariate empirical mode decomposition for recognizing the dynamic characteristics of buildings. In this study, multivariate empirical mode decomposition(MEMD) is used to evaluate the dynamic characteristics of super-tall buildings. At the end, we also discussed our recent work on energy harvesting using piezo electrics as an alternative to wired SHM for automated and self-powered SHM In addition, the authors’ research and applications of SHM technology carried out at the Nanyang Technological University (NTU) for civil infrastructures in Singapore is presented. This article introduces some of the better known SHM studies of key civil infrastructures in some of the Asian countries.

SHM of mechanical and aerospace structures is mostly similar world-wide, but of civil infrastructures could varies due to socio-economical, cultural, geographical and governmental reasons across countries and even across provinces within the same country. Structural health monitoring (SHM) is a non-issue for the poor where basic amenities of survival are more important, but crucial for the rich and densely populated where any infra-structural failure could be devastating to their society and economy. It has 49 countries, including some of the rich like Japan, poor like Afghanistan and densely populated like Singapore. Therefore, installation of structural health monitoring system in super-tall buildings could be considered as an effective way to assure structural safety during the construction process.Īsia is the largest and most populous continent in the world with about 45 million square kilometers of land mass and 4.5 billion people. Results indicate that the time-dependent property of concrete creep is of great importance to structural response and the measured data can be used in FEM updating to obtain more accurate FEM models at different construction stages. Meanwhile, a detailed finite element model (FEM) is created and comparison of results between SHM and FEM is carried out. Structural responses at different construction stages are measured using this SHM system and presented in this study. In order to provide useful information for safety evaluation and regular maintenance under construction and in-service condition, a comprehensive structural health monitoring (SHM) system is installed in Shanghai Tower, which is composed of a main monitoring station and eleven substations.

This paper presents the structural health monitoring (SHM) of Shanghai Tower.

The down side supertall tower creaks