Author(s)

W.F. Price

Abstract

This paper describes the application of the Leica Electronic Coordinate Determination System (ECDS) to the measurement of the long-term displacements of glulam-framed structures. Following background information for this project, the reasons for choosing ECDS3 are given. Much of the remainder of the paper gives practical details relating to establishing an ECDS measurement programme and a discussion of some of the results obtained is included. 1 Introduction The use of solid timber, especially for the construction of large buildings, has always been a problem on account of its inherent variability, the limited sizes available and the risk of decay. Timber also has a tendency to produce distortion over long periods of time, a phenomenon known as creep. The introduction of glulam (glued laminated) timber overcame many of the problems

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