A Web Accessible Shaking Table Experiment For The Remote Monitoring Of Seismic Effects In Structures

A remotely accessible system for controlling shake table laboratory experiments is presented. The Shake Table WebLab at MIT’s Civil Engineering Department is implemented under the iLab initiative for the development of educationally oriented remote experiments. The fully functional system allows students and researchers to subject a model structure to vibration at its base while receiving accelerometer readings in real time from three different levels as the experiment proceeds. Registered Internet users can upload their own input data, such as seismic ground accelerations for a newly occurred earthquake, and therefore assess the behavior of a real structure to that earthquake. Two main characteristics of the developed web-based application are interactivity, provided through synchronized control/response processes, and sensorbased monitoring of the experiment, which are essential for real-time interactivity. The system is built on the dot-Net Framework through server-hosted Active Server Pages and browser-embedded Windows Form Controls. Web Service methods are implemented for initiating remote processes on the control server. In this paper, we state the motivations for this project, describe the various online activities and generic administrative features, and provide a description of the implemented technologies and system components.