16 | Page STRUCTURAL HEALTH MONITORING OF CIVIL INFRASTRUCTURE Danish Zaman 1 , Amir Ali 2 , Ayush Singh 3 1,2,3 Department of Civil Engineering, IIMT College of Engineering,Greater Noida,Uttar Pradesh, (India) ABSTRACT There is a phenomenal rise in construction activities in the field of civil engineering in the recent years. Major structures like buildings, bridges, dams are subjected to severe loading and their performance is likely to change with time.It is therefore, necessary to check the performance of a structure through continuous monitoring by help of structural health monitoring.. Reduction of inspection costs, research, with the possibility to better understand the behavior of structures under dynamic loads, seismic protection, observation, in real or near real-time, of the structural response and of evolution of damage, so that it is possible to produce post-earthquake scenarios and support rescue operations, are the main advantages related to the implementation of such techniques. Keywords: Structural Health Monitoring, Seismic Monitoring Network I. INTRODUCTION Civil infrastructures including bridges and buildings, begin to deteriorate once they are built and used. Maintaining safe and reliable civil infrastructures for daily use is important to the well being of all of us. Knowing the integrity of the structure in terms of its age and usage, and its level of safety to withstand infrequent but high forces such as overweight loads, earthquakes, and fatigue is important and necessary. The process of determining and tracking structural integrity and assessing the nature of damage in a structure is often referred to as health monitoring. Structural health monitoring and damage identification are assuming larger and larger importance in civil engineering. Structural Health Monitoring (SHM) is defined as the use of in-situ, non-destructive sensing and analysis of structural characteristics in order to identify if a damage has occurred, define its location and estimate its severity, evaluate its consequences on the residual life of the structure [1]. Even if SHM is a relatively new paradigm in civil engineering, the assessment of the health state of a structure by tests and measurements is a common practice, so that evaluation and inspection guidelines are available since a long time [2]. SHM objectives are consistent with this practice but it takes advantage of the new technologies in sensing, instrumentation, communication and modeling in order to integrate them into an intelligent system.Information obtained from such systems could be useful for maintenance or structural safety evaluation of existing structures, rapid evaluation of conditions of damaged structures after an earthquake, estimation of residual life of structures, repair and retrofitting of structures, maintenance, management or rehabilitation of historical structures.