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Title |
Evaluation of Effects of Earthquake Load for Precast Concrete Moment Frames
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Authors |
이정윤(Jung-Yoon Lee) ; 신동익(Dong-Ik Shin) |
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DOI |
https://doi.org/10.4334/JKCI.2019.31.6.567 |
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Keywords |
프리캐스트 콘크리트; 모멘트골조; 연결부; 지진하중의 영향; 예상전단강도 precast concrete; intermediate moment frames; connections; effects of earthquake; probable shear strength |
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Abstract |
Although use of precast concrete structures is increasing, current design codes do not provide a clear seismic design method for precast concrete frames. The ACI 318-14 design code and the ASCE 7-10 standard specify seismic coefficients (response modification factor, system overstrength factor, and displacement amplification factor) for precast concrete structures. However, the KCI-17 design code does not provide seismic coefficients and connection details for precast concrete structures. In this study, effects of earthquake for precast concrete frames were evaluated by comparing the shear strength of connections simulated by FEM analysis and the probable shear strength of connections. Analytical results indicated that considering the effects of earthquake was suitable for the beams of precast concrete intermediate moment frames, while taking 1.5 times was suitable for columns. In case of precast concrete special moment frame, it was suitable to double the earthquake effects.
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