| Title |
Proposed Span-to-Depth Ratio Equation for Reinforced Concrete Floor Members except Edge-Supported Slabs |
| Authors |
Lee Young-Hak ; Kim Sang-Bum |
| Keywords |
Reinforced Concrete ; Minimum Thickness ; Deflection ; Serviceability |
| Abstract |
So far only fraction form of equation has been provided for deflection control in many design codes such as ACI 318 and Korean Building Code 2005. In this study a unified span-to-depth ratio function is proposed for control of deflections in one-way and two-way concrete construction. The equation can be applied to one-way slabs, beams, flat plates, and flat slabs. Effects of cracking, time-dependent deformation, boundary conditions, applied loading, and target deflection-to-span ratio are taken into account. Design examples are provided to demonstrate the application of the proposed equation for proportioning members for deflection control. |