ANALYSIS OF CONCRETE DAMS UNDER SWELLING PROCESSES
作者单位：Concrete Dams Department National Laboratory for Civil Engineering （LNEC） Lisbon Portugal Concrete Dams Department National Laboratory for Civil Engineering （LNEC） Lisbon Portugal Concrete Dams Department National Laboratory for Civil Engineering （LNEC） Lisbon Portugal
会议名称：《第十二届国际混凝土碱集料反应会议》
会议日期：1000年
学科分类：08[工学] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 081503[工学-水工结构工程]
关 键 词：Alkali-silica reaction (ASR) Chemo-visco-elasticity Finite element analysis Structural effects Rheological model.
摘 要：正 This paper presents a chemo-visco-elastic model to simulate the behaviour of mass concrete structures subjected to swelling resulting from internal alkali-silica reactions （ASR）. The evolution of the swelling process is quantified taking into account the concrete properties, environmental conditions （temperature and moisture） and structural effects induced by other external actions. As a case study, it is presented the analysis and interpretation of the structural behaviour of Santa Luzia dam （which concrete has been subject to swelling due to ASR）, since the first filling of the reservoir, occurred in October 1942, until the end of 2003. This is achieved by comparing the mathematical results with the results of the continuous observation of the works.