The role of structural control for integrated hazard mitigation systems (Q2725715)

In recent years, it has become apparent that the vulnerability to hazards of urban areas has increased with widespread complex infrastructures and the rapid growth of high-density population centers and people's increasing deependency on these infrastructures in their daily lives. It is not sufficient to use the current countermeasures by combining individual technical tools to cope with complex and interactive earthquake hazards in urban areas. It is necessary to integrate different technologies in these stages before, during and after the earthquake. This is called an integrated hazard mitigation system, and it is presented in this paper.NEWLINENEWLINENEWLINEBefore an earthquake, it is necessary to carry out a seismic assessment of old structures and to monitor the health of important structures, such as highway bridges. It is necessary to predict social damage. The first early warning system aims at catching the phase just before the arrival of strong ground motions. The second system involves the application of structural control technology and plays an important role in preventing structural damage and in maintaining functional losses of important facilities by reducing strong shaking. The third system comprises post-control immediately after the event.NEWLINENEWLINEFor the entire collection see [Zbl 0959.00020].