May Phyo Aung creator Pennung Warnitchai Chairperson Anwar, Naveed Examination Committee Park, Kyung Ho Examination Committee Sun Sayamipuk Examination committee AIT Fellowship Scholarship donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2010 continuing eng 229 leaves : ill. In these days, hybrid precast concrete moment resis ting fames and shear walls were constructed in many regions such as USA, Japan, New Zealand, etc because precast concrete system is easy to construct. Besides, it h as significant benefits in cost effectiveness, time saving and high quality product ion. In earlier days, monolithic emulation precast concrete systems were designed to use in seismic regions. However, these precast concrete systems are vulnerable to ea rthquakes. Thus, the precast concrete systems that can resist the earthquake have been de veloping by many researchers. Hybrid precast concrete beam-column frames can be i mplemented as the major lateral force resistance for low-rise and mid rise building without any major design difficulties. But it is becoming more and more diff icult to design the hybrid precast beam- column frames to satisfy the seismic design require ments when the number of stories increases. If hybrid precast concrete beam-column f rames only is used, the frame becomes too soft, and deformation and strength demands tend to increase beyond the economic design level. Adding hybrid wall into the beam-colu mn frames can solve this problem effectively. In this study, hybrid precast concrete dual system was selected and tested to examine the seismic performances and behaviors of h ybrid precast connections. This dual system was composed of Wall-foundation, column-foun dation, beam-wall, exterior beam- column and interior beam-column connections in orde r to understand the behaviors of various types of hybrid connections at one time. Th e hybrid precast concrete dual system for this experiment was subjected to quasi-static c yclic loading, initiated at 0.10% story drift and stopped at 2.50% story drift. According to the experimental results, the hybrid p recast dual system performed satisfactorily in terms of self-centering, stiffnes s degradation, strength degradation, energy dissipation, residual displacement and shear slip. The test assemblage had good self- centering capacity with almost zero residual displa cement at the end of the test. As there was no pinching in hysteretic loop throughout the t est, good energy dissipation, low stiffness and strength degradation could be achieve d as expected. Shear slip did not also experience in any joint. Moreover, minor damage was found at the interfaces of all connections and only hairline cracks could be detec ted in all precast concrete members. A thesis submitted in partial fulfillment of the re quirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 2010 Precast concrete Walls Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B03988 http://203.159.5.9/ait-thesis/detail.php?q=B03988 110314 20260818090908.0