Seismic Design of Reinforced Concrete Buildings by Moehle Jack

Author:Moehle, Jack [Moehle, Jack]
Language: eng
Format: azw3, mobi
Publisher: McGraw-Hill Education
Published: 2014-10-27T16:00:00+00:00

FIGURE 10.3 Punching shear failures at (a) interior and (b) exterior connections. (After Hwang and Moehle, 2000a.)

10.3 Slab-Column Systems

Modern concrete building construction commonly uses two forms of slab-column framing (Figure 10.4). In the flat-plate, a slab of uniform thickness is supported directly on columns. Drop capitals, sometimes referred to as drop caps, may be added to increase the thickness of the slab immediately around the supporting column, thereby improving shear strength at the connection. The thickness of the drop capital is selected considering shear at the perimeter of the column. The horizontal extent of the drop capital is determined such that adequate shear strength is provided at the critical section outside the perimeter of the drop capital.

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