Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Discussion of construction norms
Determination of thermoelastic stresses in hydraulic structures by the photoelastic analyses method taking into account the variation of the coefficient of linear expansion of concrete with temperature
Conclusions 1. The photoelastic analysis method of investigating stresses permits obtaining the solution of the problem of thermoelastic stress state of a hydraulic structure for any given temperature distribution and any relationship between the coefficient of linear expansion of the concrete α=α(T) and temperature. 2. If the increase in the value of the coefficient α in concrete frozen under natural humidity conditions is not considered, this introduces a significant error into the computation of the effect of temperature on hydraulic structures. Thus, during the winter months the tensile stresses in a gravity dam caused by seasonal variation of the surrounding air temperature exceed in certain points by 50% the values of the stresses computed under the assumption of a constant α as recommended by SN 55-59. 3. A comparison of the experimental data on the dam displacements with the displacements obtained as a result of observations on the prototype indicate that considering the variation of the deformation characteristics of the frozen concrete in the computations leads to results which reflect better actual working conditions of the structure.
Discussion of construction norms
Determination of thermoelastic stresses in hydraulic structures by the photoelastic analyses method taking into account the variation of the coefficient of linear expansion of concrete with temperature
Conclusions 1. The photoelastic analysis method of investigating stresses permits obtaining the solution of the problem of thermoelastic stress state of a hydraulic structure for any given temperature distribution and any relationship between the coefficient of linear expansion of the concrete α=α(T) and temperature. 2. If the increase in the value of the coefficient α in concrete frozen under natural humidity conditions is not considered, this introduces a significant error into the computation of the effect of temperature on hydraulic structures. Thus, during the winter months the tensile stresses in a gravity dam caused by seasonal variation of the surrounding air temperature exceed in certain points by 50% the values of the stresses computed under the assumption of a constant α as recommended by SN 55-59. 3. A comparison of the experimental data on the dam displacements with the displacements obtained as a result of observations on the prototype indicate that considering the variation of the deformation characteristics of the frozen concrete in the computations leads to results which reflect better actual working conditions of the structure.
Discussion of construction norms
Determination of thermoelastic stresses in hydraulic structures by the photoelastic analyses method taking into account the variation of the coefficient of linear expansion of concrete with temperature
Dolgopolov, V. V. (Autor:in)
Hydrotechnical Construction ; 3 ; 941-945
01.10.1969
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Discussion of construction norms
| Online Contents | 1973
Discussion of Construction Norms
| Springer Verlag | 1970
Discussion of construction norms
| Online Contents | 1969
Discussion of construction norms
| Online Contents | 1969
Discussion on construction norms
| Springer Verlag | 1968