Hydrostatic, Temperature, Time-Displacement Model for Concrete Dams
- 1 March 2007
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Engineering Mechanics
- Vol. 133 (3), 267-277
- https://doi.org/10.1061/(asce)0733-9399(2007)133:3(267)
Abstract
This paper presents frequency domain solution algorithms of the one-dimensional transient heat transfer equation that describes temperature variations in arch dam cross sections. Algorithms are developed to compute the temperature T(x,t) , spatial distribution, and time evolution for the “direct” problem, where the temperature variations are specified at the upstream and downstream faces, and for the “inverse” problem, where temperatures have been measured at thermometers located inside instrumented dam sections. The resulting nonlinear temperature field is decomposed in an effective average temperature, Tm (t) , and a linear temperature difference, Tg (x,t) , from which the dam thermal displacement response can be deducted. The proposed frequency domain solution procedures are able to reproduce an arbitrary transient heat response by appending trailing temperatures at the end of thermal signals, thus transforming a periodic heat transfer problem in a transient one. The frequency domain solution procedure...Keywords
This publication has 3 references indexed in Scilit:
- Practical Dam AnalysisPublished by Emerald Publishing ,1999
- Thermal protection of concrete dams subjected to freeze–thaw cyclesCanadian Journal of Civil Engineering, 1995
- Seasonal temperature and stress distributions in concrete gravity dams. Part 1: modellingCanadian Journal of Civil Engineering, 1993