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http://dx.doi.org/10.4334/JKCI.2008.20.2.213

Effective Beam Width for Flat-Plate Systems Having Edge Beams under Lateral Loads  

Han, Sang-Whan (Dept. of Architectural Engineering, Hanyang University)
Cho, Ja-Ock (Dept. of Architectural Engineering, Hanyang University)
Park, Young-Mi (Dept. of Architectural Engineering, Hanyang University)
Publication Information
Journal of the Korea Concrete Institute / v.20, no.2, 2008 , pp. 213-219 More about this Journal
Abstract
The purpose of this study is to propose frame analysis method for flat plate slabs having edge beam under lateral loads. Flat plate system is defined as the system only with slab of uniform thickness and column. However, the slab system generally incorporate edge beams at exterior connection in actual design. ACI 318 (2005) allows three methods for conducting flat plate system analysis subjected to lateral loads. There are the finite element method (FEM), the equivalent frame method (EFM), and the effective beam width method (EBWM). Among methods, the EBWM enables us to analyze practically by substituting the actual slab to beam element. In this model, the beam element has a thickness equal to that of the slab, and effective beam width equal to some fraction of the slab transverse width. However, the established EBWM was generally proposed for variables of geometry or stiffness reduction factor and seldom proposed for the effect of edge beams. This study verifies that, in the case of flat plate system having edge beams at exterior connections, the lateral stiffness is considerably larger than without edge beams. Therefore it need to analysis method for considered the effect of edge beams. In this study, an analysis model is proposed for the flat plate system having edge beams under lateral loads by considering the effect of edge beams. To verify the accuracy of proposed model, this study compared results of the proposed EBWM with results of FEM of flat plate systems having edge beams under lateral loads. Also, the proposed approach is compared with experimental results of former research.
Keywords
effective beam width; flat-plate system; edge beam; lateral load;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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