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Seismic Cracking of Concrete Gravity Dams
Journal of the Structural Division, 1976A mathematical model describes properties of concrete under a two-dimensional state of stress. The effects of strain rate — the time rate of change of strain — on the mechanical properties are incorporated in the model. Appropriate assumptions are introduced in the model where experimental data were lacking; it was assumed, for example, that strain ...
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The earthquake experience at koyna dam and stresses in concrete gravity dams
Earthquake Engineering & Structural Dynamics, 1972AbstractA number of questions concerning the response of concrete gravity dams to earthquakes, motivated by the structural damage caused to Koyna Dam, which has an unconventional cross section, by the December 1967 Koyna earthquake, are considered in this work.
Anil K. Chopra, P. Chakrabarti
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Deterioration of concrete in a hydroelectric concrete gravity dam and its characterisation
Cement and Concrete Research, 2006A hydroelectric concrete gravity dam in the Snowy Hydro network had shown signs of concrete distress in the form of cracking in some sections of the dam wall, and vertical movements in the wall, measured in routine surveys on the crest of the dam wall. Concrete elements of the associated power station had also shown some degree of distress in the form ...
Ahmad Shayan, Jack Grimstad
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Seismic behaviour of cracked concrete gravity dams
Earthquake Engineering & Structural Dynamics, 2005AbstractA finite element model of incremental displacement constraint equations (IDCE), based on an existing node‐to‐surface concept, is implemented to deal with dynamic contact surfaces in the seismic behaviour analysis of cracked concrete gravity dams.
O. A. Pekau, Xueye Zhu
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Earthquake Analysis of Concrete Gravity Dam
2018For countries blessed with a number of rivers and lakes, where water management, flood control, and development of hydel power remains a major issue, concrete gravity dams often play a major role in achieving the same.
Indrajit Chowdhury, Shambhu P. Dasgupta
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Fracture Mechanics of Concrete Gravity Dams
1989A comprehensive investigation on the behavior of cracked concrete gravity dams using fracture mechanics concepts through a series of parametric studies is presented. The effect of various forms of loading, concrete age and anisotropy on the stress intensity factors, direction of crack profiles, crack lengths and stress redistribution is assessed.
Victor E. Saouma +2 more
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Austin Dam, Pennsylvania: The Sliding Failure of a Concrete Gravity Dam
Environmental and Engineering Geoscience, 2005The Austin Dam, a concrete gravity structure, failed catastrophically on September 30, 1911, less than 2 years after its construction. Several engineering evaluations of the failure have been made since immediately following the disaster. Engineers involved in the construction of the dam recognized early on that the dam failed by sliding on its rock ...
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Earthquake response of concrete gravity dams
2010Nepal is set to construct a number of large dams to cater for its ever increasing power demand. One of the big dams in the pipeline is Arun III dam in the Sankhuwasabha district in eastern Nepal. The Arun III dam was designed in the mid 1980s and little is known about its capability to resist major earthquakes which are probable in this region.
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