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Pulvino and peripheral joint effects on static and seismic safety of concrete arch dams
, Article Scientia Iranica ; Volume 20, Issue 6 , 2013 , Pages 1579-1594 ; 10263098 (ISSN) ; Mirzabozorg, H ; Ghaemian, M ; Sharif University of Technology
Sharif University of Technology
2013
Abstract
One of the methods in limiting tensile stresses in arch dams and removing stress concentrations at the dam-foundation interface is setting the dam body on a concrete saddle called a Pulvino. In the present study, the effects of Pulvino and peripheral joints on the static behavior and seismic performance of arch dams are investigated. Dez Dam with a height of 203 m was selected as a case study and all contraction joints of the dam body were modeled using the discrete crack approach based on as-built drawings. Also, the surrounding rock was modeled as a mass-less medium tied to Pulvino. The dam-reservoirfoundation system was analyzed under static loads accounting for stage construction...