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http://dx.doi.org/10.5804/LHIJ.2012.3.4.433

Behavior of Wide Beam-Column Interior Joint with Slab  

Lee, Bum-Sik (한국토지주택공사 토지주택연구원)
Park, Seong-Sik (한국토지주택공사 토지주택연구원)
Park, Ji-Young (한국토지주택공사 토지주택연구원)
Publication Information
Land and Housing Review / v.3, no.4, 2012 , pp. 433-449 More about this Journal
Abstract
An experimental investigation was conducted to study the behavior of RC wide beam-column joints with slab subjected to reversed cyclic loads under constant axial load. Six half scale interior wide beam-column assemblies representing a portion of a frame subjected to simulated seismic loading were tested, including three specimens without slab and three specimens with slab. The primary variables were the ratio of column-to-beam flexural capacity ($M_r={\Sigma}M_c/{\Sigma}M_b$ ; 0.77~2.26), ratio of the column-to-beam width (b/H ; 1.54, 1.67). Test results are shown that (1) the current design code and practice for interior joints(type 2) are apply to the wide beam-high strength concrete column. (2) the presence of a slab have an effect on the performance of the wide beam-high strength concrete column interior joints(type 2). therefore in the design of the wide beam-high strength concrete column interior joints(type 2), the width of slab effective as a T beam flange should be considered. It was show that the case of the ratio of column-to-beam flexural capacity is more than 2.0, the effective width of slab are 2 times of an effective depth of wide beam, however if the ratio of column-to-beam flexural capacity is 1.4~2.0, the effective width of slab are not able to be considered.
Keywords
Wide-Beam Column Joint; Slab Effect; Inelastic Analysis; Load-Displacement; Ductility; Stiffness;
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