DEVELOPMENT OF BRIDGE MONITORING SYSTEM FOR SHORT- AND MEDIUM-SPAN BRIDGES BASED ON BUS VIBRATION
In this paper, we propose a new method of assessing the condition of existing shortand medium-span reinforced/prestressed concrete bridges based on vibration monitoring data obtained from a public bus. This paper not only describes details of a prototype monitoring system that uses information technology and sensors capable of providing more accurate knowledge of bridge performance than conventional ways but also shows a few specific examples of bridge condition assessment based on vehicle vibrations measured by using an in-service public bus equipped with vibration measurement instrumentation. This paper also describes a sensitivity analysis of deteriorating bridges based on simulation of the acceleration response of buses conducted by the "substructure method" employing a finite element model to verify the above bridge performance results.
Summary form only. The author introduces the concept of a dynamic parameter, a concept based on the fact that a component (for this study, an electric motor) possesses many attributes of a dynamic role. A system's function can be expressed as a function of the motor-related sensors, interlocks, instrumentation, and other actuating devices. This process can be used to build intelligent structures. These structures would be expert-defined and become powerful communication highways which include traditional or classical engineering relationships as well as specific new relationships defined in the present work. >