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Title |
A Parametric Study of Flexural Stiffness Ratio on Floor Slabs for Seismic Design of Shear Wall Structures
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Keywords |
강막가정 ; 바닥판 휨강성비 ; 전단벽식 구조물 ; 내진설계 rigid diaphragm ; slab flexural stiffness ratio ; shear wall structures ; seismic design |
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Abstract |
A remarkable discrepancy of lateral deformation of shear wall structures for seismic loads due to a rigid diaphragm assumption without floor slab modelling asks a study how much effective the slab stiffness ratio is to the lateral behaviour. Typical shear wall type 15 stories structure is selected to analysis using MIDAS-ADS2008 commercial softwares modelling three types; 1) rigid diaphragm (RD model) 2) considered out-of plane slab flexural stiffness (DB model), and 3) considered in and out of plane slab flexural stiffness (SRC model). Based on National Code of KBC2005, the Equivalent Static and Response Spectrum seismic analysis are undertaken to compare each responses of the three models. The differences of lateral responses due to the three slab stiffness ratios applied on the models are compared and discussed.
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