Shear Behavior of Stainless Steel Anchor Channel Assemblies
To study the failure mode and bearing performance of stainless steel anchor channel assemblies under shear force,shear tests on three groups of nine stainless steel anchor channel assemblies with concrete substrate were completed.The test results show that the failure mode under parallel shear conditions is teeth occlusal shear failure,and the failure mode under perpendicular shear conditions is concrete edge failure and channel edge flexural failure.Based on the experiment,a finite element analysis model was established by ABAQUS software,and the accuracy of the model was verified.The influence of parameters such as teeth size,concrete strength,edge distance,anchor centerline spacing and effective embedded depth of the anchor channel on the ultimate load capacity was investigated by numerical analysis.The results show that under parallel shear conditions,the increase in the number of teeth,width and thickness of the serrated channel can improve the ultimate load capacity,while the height of the teeth has less influence on the ultimate load capacity;under perpendicular shear conditions,the increase in the concrete strength and edge distance of the serrated and dovetail channel can improve the ultimate load capacity,while the increase in the anchor centerline spacing reduces the ultimate load capacity,and the effective depth of the anchor channel has less effect on the ultimate load capacity.The shear bearing capacity calculation formulae for different failure modes are given,and the accuracy of the formulae is verified by comparing the formulae results with the test results and the finite element simulation results.