RC 플랫 플레이트 구조물의 내진 안전성 평가 (Seismic Safety Evaluation of Reinforced Concrete Flat Plate Buildings)

서지정보

· 발행기관 : 대한건축학회
· 수록지 정보 : 대한건축학회논문집 구조계 / 25권 / 8호 / 19 ~ 26페이지
· 저자명 : 서대원, 최효준, 한범석, 신성우

초록

The conventional flat plate systems were designed and built to resist gravity loads only. Because, the conventional flat plate
system was designed and built to resist gravity loads only, the slab-column connections this system may not be appropriate to
sustain deformation reversals during an earthquake of moderate intensity.
This paper presents an analytical approach to evaluation the vulnerability of reinforced concrete flat plate structures subjected
to earthquake load. Nonlinear dynamic analysis and reliability evaluation were studied for three type of buildings, 5, 10, and 15
story heights with flat plate structural system. And, a model was developed to predict punching shear failures at interior
slab-column connections based on experimental results.
Based on the reliability analysis, the probability of failure of existing flat-plate system are presented for different soil
conditions and peak ground acceleration varying from 0.05g to 0.3g. The reliability index for typical 5, 10 and 15 story with flat
plate structural system was evaluated by the Monte Carlo simulation (MCS).
Under seismic loading, the probability of punching failure increased with increasing expected peak ground acceleration and the
number of stories in the building. Also, the local soil conditions have a significant effect on the probability of punching failure.
Conclusively, the conventional building structures that were designed with flat plate slab system to resist gravity load only,
slab-column connections of these building have showed punching failure in this study. So, it is needed to appropriate reinforcing
detail to sustain deformation reversals during an earthquake of moderate intensity.

영어초록

The conventional flat plate systems were designed and built to resist gravity loads only. Because, the conventional flat plate
system was designed and built to resist gravity loads only, the slab-column connections this system may not be appropriate to
sustain deformation reversals during an earthquake of moderate intensity.
This paper presents an analytical approach to evaluation the vulnerability of reinforced concrete flat plate structures subjected
to earthquake load. Nonlinear dynamic analysis and reliability evaluation were studied for three type of buildings, 5, 10, and 15
story heights with flat plate structural system. And, a model was developed to predict punching shear failures at interior
slab-column connections based on experimental results.
Based on the reliability analysis, the probability of failure of existing flat-plate system are presented for different soil
conditions and peak ground acceleration varying from 0.05g to 0.3g. The reliability index for typical 5, 10 and 15 story with flat
plate structural system was evaluated by the Monte Carlo simulation (MCS).
Under seismic loading, the probability of punching failure increased with increasing expected peak ground acceleration and the
number of stories in the building. Also, the local soil conditions have a significant effect on the probability of punching failure.
Conclusively, the conventional building structures that were designed with flat plate slab system to resist gravity load only,
slab-column connections of these building have showed punching failure in this study. So, it is needed to appropriate reinforcing
detail to sustain deformation reversals during an earthquake of moderate intensity.

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