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The constitutive relation of bond-slip on steel and concrete interface is proposed for short steel reinforced concrete(SRC)column.Based on the experimental research on bond-slip performance,a mechanical model of short SRC column in pulling or pushing test is established.By means of the elasto-plasticity theory the explicit formulation of bond-slip constitutive relation τ-s in different anchor-hold place of push and pull member is investigated under the conditions of balance and boundary.The study shows that the constitutive relation is relevant to the embedment length and the thickness of concrete cover.The results are continuous descriptions of bond-slip constitutive relation and can be used to analyze the non-linear performance of SRC members.Results indicate that the principle of the method is correct and it performs well for short SRC column.
The constitutive relation of bond-slip on steel and concrete interface is proposed for short steel reinforced concrete (SRC) column. Based on the experimental research on bond-slip performance, a mechanical model of short SRC column in pulling or pushing test is established. By means of the elasto-plasticity theory the explicit formulation of bond-slip constitutive relation τ-s in different anchor-hold place of push and pull member is investigated under the conditions of balance and boundary. The study shows that the constitutive relation is relevant to the embedment length and the thickness of concrete cover. the results are continuous descriptions of bond-slip constitutive relation and can be used to analyze the non-linear performance of SRC members. Results indicate that the principle of the method is correct and it performs well for short SRC column.