Scientia Iranica

Scientia Iranica

Impact of Solar Radiation on the Uncoupled Transient Thermo-Structural Response of an Arch Dam

Authors
1 Department of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran
2 Department of Civil Environmental and Architectural Engineering, University of Colorado, Boulder, USA
Abstract
The impact of solar radiation on the uncoupled transient thermo-structural behavior of an arch dam is investigated under the earthquake loading. Temperature distribution within the dam body is determined by solving the governing differential equations taking into account the water and air temperature and the solar radiation. Finite element model of the dam-reservoir-foundation system including joint nonlinearity is excited using three-component ground motion. Results of the thermal transient analysis with and without solar radiation effects are used as an initial boundary condition for the seismic analysis. Results show that considering solar radiation leads to non-uniform temperature distribution on the exposed faces and increasing the tensile stresses within the dam body.
Keywords

Volume 22, Issue 4 - Serial Number 4
Transactions on Civil Engineering (A)
July and August 2015
Pages 1435-1448

  • Receive Date 15 November 2014
  • Accept Date 09 July 2017