02928nas a2200289 a 450000500170000000800410001703500150005810000340007324500820010726000670018930000340025649000270029050001720031752015820048950200580207165000320212965000140216165000210217565000380219670000370223470000470227170000460231871001070236471000420247181000590251385600660257220260818213610.0170530s2014    th uu m rtt   0   a1eng d  a.b121843541 aRahman, Mohammad Sorgul Abdul10aSeismic performance evaluation of the Xayaburi Hydro Power Plant' s Spillway   aPathum Thani, Thailand :bAsian Institute of Technology,c2014  a82 leaves :bill. (some col.)1 aThesis ;vno. ST-14-04  aA thesis submitted in partial fulfillment of the requirements for the  degree of Master of  Engineering in Structural Engineering, School of Engineering and Technology  aThe seismic  performance  evaluation  of  Xayaburi  Hydro Power Plant{u201F}s  Spillway on the  Mekong  River,  is  presented.  A  three  dimensional  finite  element  model  of  the  spillway,  including radial gates, water and rock foundation is prepared. Calibration and validation of  the  water  modeling  as  solid  elem ents  which  contains  mechanical  properties  of  water,  is  carried out through comparison between the measured and  analytical model for hydrostatic and  hydrodynamic pressure  of  water.  Comparison  are  made  for  considering  mass  of  foundation  and  massless foundati on.  Three models,  different  in  size,  are  first  analyzed  using  linear  time  history and  hydrostatic  and  dynamic  forces  on  trunnions,  maximum  displacement  and  acceleration  at  the  crests  of  piers  with  comparison  between  models  due  to size effects are presented .  Upper  contraction  joints of structure considered in  a  separated  analysis.  The  effects  of  structure  joint  are  discussed  when  modeling  the  opposite  faces  of  joints with and without links in between.  Then nonlinear time history analysis is conducted  for  one block  of  the  spillway.  Reduction  of  maximum  and  minimum  displacement considering  steel bar in  both  face  of  piers, are  reported  at  the  critical  points  of  piers.  The  safety  of  the  spillway  against  sliding  and  overturning  is  conducted.  Finally,  the  seismic  p erformance  of  the  spillway  is  evaluated  regarding  the  principle  stresses,  sliding  and  overturning.  aThesis (M.Eng.) - Asian Institute of Technology, 2014 0aEarthquake resistant design 0aSpillways 0aHydraulic models 0aConcrete damsxEarthquake effects0 aPennung Warnitchai,eChairperson0 aNoppadol Phien-Wej,eExamination Committee0 aPunchet Thammarak,eExamination Committee2 aStrengthening Higher Education Program  (SHEP) / Kandahar University, Afghanistan,eScholarship  Donor2 aAIT  Fellowship, eScholarship  Donor2 aAsian Institute of Technology.tThesis ;vno. ST-14-04  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B04022