| Title |
Evaluation of Effective Moment of Inertia and Allowable Span-Depth Ratio for Controlling Deflection in Composite Slabs Reinforced with Steel Decking |
| Authors |
Yang Keun-Hyeok ; Kim Dea-Jung ; Lee Eun-Taik ; Chung Heon-Soo |
| Keywords |
deck plate ; composite slabs ; effective moment of inertia ; allowable span-depth ratio |
| Abstract |
A proper evaluation of effective moment of inertia involved tensile cracking effect and tension stiffening effect is an important consideration in the design of one-way composite slabs reinforced with structural steel decking. Especially common uses of high- strength reinforcing structural steel decking and shallow sections caused serviceability of one-way composite slabs to be of more importance. Methods to evaluate effective moment of inertia and allowable span-depth ratio for controlling deflection in one-way composite slabs were developed. A new presented formula for effective moment of inertia can apply to be simple as eliminating the necessity of computing moment of inertia of cracked section. Allowable span-depth ratio that limitation of long-term deflections will be satisfactory considered loading conditions, support conditions, deck plate ratio, span length, and allowable deflections in ACI 318-02. The proposed methods in this study show a more justifiable than other procedures such as ACI 318-02 and ANSI/ASCE. |