Crack Width Calculation of Steel Reinforced Concrete Beams Considering the Bond-slip

摘要

Bond-slip performance between section steel and concrete has effect on crack width of steel reinforced concrete(SRC)beams based on experimental results. Current standards about SRC structures do not involve bond-slip effects when calculating the crack width of SRC beams, and this is not valid exactly. This article describes a new method of crack width calculation for SRC beams, which considering the bond-slip effects on crack width. Crack width of SRC beams are divided into two parts: one part ignoring the bond-slip between steel and concrete, and the other part considering additional crack width caused by the bond-slip. The total crack width is the sum of the two parts. Results show that the proposed method in this article is coincide with experimental study.