STUDY OF SHEAR STRENGTH OF SRHSHPC SHORT COLUMNS SUBJECTED TO CYCLIC LOADING

Based on the test results of steel reinforcement high strength high performance concrete ( SＲHSHPC) short columns subjected to cyclic loading，the aspect span ratios，concrete strength，axial compression ratios，stirrups ratios and steel ratios were studied． According to principle of superposition，the shear strength equation was established by considering the contribution of the reinforcement concrete，steel，axial compression and displacement ductility demand for the diagonal shear failure and the shear bond failure． To evaluate the accuracy of the proposed approach，the shear strength predicted by the proposed approach was compared with test results． The resulta showed that the proposed approach could estimate the shear strength of test specimens with reasonable precision． The results can supply a theoretic basis and a reference for the engineer design and revision of technical specification for steel reinforced concrete composite structures．