TY  - SER
AU  - May Thazin Khine
AU  - Punchet Thammarak,
AU  - Pennung Warnitchai,
AU  - Thanakorn Pheeraphan,
ED  - UNOCAL M yanmar OffshoreCo. Ltd, Chevron,
TI  - Cam-Grip energy dissipating device for hybrid structural rocking wall
T2  - Thesis
PY  - 2016///
CY  - Pathum Thani, Thailand
PB  - Asian Institute of Technology
KW  - Precast concrete construction
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering inStructural Engineering; Thesis (M. Eng.) - Asian Institute of Technology, 2016
N2  - In modern societ y, the seismic resistant design of structure targeting life safet y  and  control  the  severit y  of  damage  in  small  or  moderate  earthquake  are not enough. The new era design should resist a major level of earthquake without collapse  but  possibl y  with  some  structural  and  nonstructural  damage.  To  meet this target, the structure should have enough ductilit y capacit y to perform under inelastic  range.In  monolithic  ductile  connections,  inelastic  formation  has  been inevitabl y damage to structure. Later, alternative economical high-performance low-damage  s ystem  which  is  known  as  hybrid  s ystem  was  developed.In  this system  post-tension  tendon  is  used  together  with  mildsteeltherefore  post-tension  tendon  provide  self-centering  action  and  mild  steel  provideener g y dissipation  action.The  general  concept  of  a  post-tensioned  rocking  s ystem  is to  activate  a  2controlled  rocking3  motion  between  two  structural  members (beam-column,  column-foundation  or  wall-foundation).  The  energy  dissipating devices  can  be  mainly  used  as  two  t ypes:  internal  dissipaters  or  external dissipatersin  rocking  s ystem.  In  this  experiment,  cam-grip  energy  dissipating device was used as external energy dissipatersin h ybrid structural wooden wall test. Cam-grip  energy  dissipating  device  applies  friction-gripping  technique. Friction  coefficient(the  ratio of vertical to  horizontal  force)between  cams  and steel core is important in CFDand it is set as 0.2 to prevent an y slippage between cams and steel core.As CFD device resistsno compression force, no uplift force  will  be  applied  to  the  wall.  Therefore,  unlike  other  energy  dissipating  device,  the  CFD  device  alwa ys  provide  full  self-centering  behavior  to  the  rocking  wall system.
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B04038 
ER  -