带横缝拱坝地震破坏机理的振动台试验研究  

Research on seismic failure pattern of arch dam with contraction joints by shaking table tests and numerical analysis

作　　者：盛志刚[1] 徐艳杰[2] 刘海笑[1] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水力发电学报》2009年第3期69-74,共6页Journal of Hydroelectric Engineering

基　　金：国家863计划(2006AA09Z348);国家973计划(2007CB714108)

摘　　要：本文通过脆性材料制作的带横缝拱坝模型,采用逐步加大的谐波荷载,考察拱坝的动力破坏机理。通过对模型拱坝整个破坏过程的观测,重点研究不同破坏阶段模型拱坝在动力荷载作用下的一些反应规律。同时,结合试验模型坝体的破坏历程,对拱坝计算专用有限元程序ADADP-88的合理性做进一步验证,为工程实际的破坏计算预估奠定基础。To explore the seismic failure pattern of arch dams, a model of an arch dam with tested on a shaking table. A finite element program ADAP-88（arch dam analysis program） is the initiation and development of cracks. From the results of the damaged model with tensile abutments under the increasing harmonic loadings, the seismic joints is described in details. The test results are also compared contraction joints is employed to predict cracks near the two failure pattern of the arch dams with contraction with the numerical prediction of ADAP-88. The comparison clearly shows that the numerical prediction is accurate in the initial and increased crack loadings

关 键 词：水工结构 破坏机理 振动台试验 拱坝 地震反应 

分 类 号：TV323[水利工程—水工结构工程]