- Author
- Lie, T. T. | Berndt, J. E.
- Title
- Remote Measurement of Large Deflections in Fire Tests.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Report
- Building Research Note No. 84, April 1972, 12 p.
- Keywords
- fire tests | devices
- Identifiers
- structural elements
- Abstract
- In experimental investigations of the fire resistive properties of structural elements it is often necessary to measure large deflections of test specimens. The simplest and most common method of determining deflections makes use of a calibrated tape or rule. Taking such measurements during the course of a fire test has, however, become hazardous and difficult owing to the increasing use of materials that develop combustion products that may be toxic or reduce visibility. Remote recording of the deflections is therefore desirable.