Instantaneous Deflection calculation Incorporated with Internal Force State Factor In RC short beams(a/d<2.5)

RC 짧은보(a/d<2.5)의 순간처짐 산정에 대한 연구

This paper describes an attempt to develop a new equation to calculate deflection for reinforced concrete deep beams(a/d<2.5). The main idea incorporated with this equation is the internal force state factor($\alpha$)which is able to express global state of internal force flow in cracked reinforced concrete beams subjected to shear and bending. A new equation for deflection calculation using internal force state factor($\alpha$)provides more exact result of deflection in reinforced concrete deep beams than the equation predicted by the current code provisions.