Introduction

SHARD is a web based application to monitor the structural health of one or more buildings. PSAs calculated in real-time are compared with response spectra given in design codes as the EC, NEHRP or DIN codes. Exceedance is checked and warning incidents are issued. In addition to the spectral comparison also data quality as delay and variance are tracked and quality incidents are generated. The built-in incident browser allows a quick and easy access to the history showing data quality, exceedance and earthquake occurrence. Incidents are displayed in heat maps giving an instant overview.

The SHARD application suite consists of a backend that is running continuously in the background and processes the sensor data and a frontend that is available in an Internet browser.

When the shard daemon has been started it accepts by default connections on port 8080. The URL http://localhost:8080/shard would bring up the following landing page:

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Architecture

The application follows the client-server-model. The server gathers the waveform data and aggregates them. In detail that means all calculations are done in the backend.

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