Abstract
A novel anchorage method of CFRP grid in mortar named intersect-type anchorage method was proposed in this paper. In order to verify the application feasibility of this novel anchorage method in practical engineering, two phases of pull-out tests including single-direction pull-out tests and bidirectional pull-out tests were carried out. The number of grid points and anchorage conditions were selected as changing parameters. The maximum tensile loads, failure patterns, load–displacement curves of test specimens and load–strain curves of CFRP grids were obtained. The ultimate resistant actions, tensile bearing modes of grid points, tensile stress transfer process, coupling effect between the bond action of vertical grid and the resistant action of grid points and the failure mechanism were discussed. The research results showed that the intersect-type anchorage method is a favorable anchorage method for CFRP grid in mortar and the bond action of vertical grid play a dominant role for the anchorage action of CFRP grid in mortar rather than the resistant action of horizontal grid. In order to make full use of the tensile strength of CFRP grid, the number of grid points in intersecting part was not less than two.
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