MULTICOMPONENT SENSOR FOR STRESS ANALYSIS IN BUILDINGS
Abstract
An important element in the supervision of buildings is the necessary precise and continuous measurement of stress conditions. For this purpose, an encapsulated measuring sensor as developed which protects the sensitive strain-gauge technology within it and which can be easily inserted into measurement boreholes.
The mechanical adaptation is effected by optimising a process of deformation of two conical bodies such that the envisaged measuring range covers the range of elastic deformation of construction steels. Suitable calibration procedures as well as measurement methods for the early detection of structural damage in buildings were developed for this adaptation model. A strain-gauge layout was devised for the sensor that is adapted to the specific local conditions, and the strain gauge is protected by a plastic seal. In order to be able to assess the lifetime of the sealing materials, which in part were being employed for the first time, the chemical/climatic building environment was simulated under forced conditions in the laboratory.
Event details
- Event
- Joint International Conference on Force, Mass, Torque, Hardness and Civil Engineering Metrology in the age of globalization
- Technical Committee
- TC3
- Place
- Celle, GERMANY
- Time
- 24 September 2002 - 26 September 2002