EXPERIMENTAL STUDY ON ANCHORAGE PERFORMANCE OF DOUBLE ADHESIVE ANCHORS FOR RC STRUCTURES

The anchorage performance of double adhesive anchors for RC structures in reinforcement and reconstruction engineering is studied systematically by experiments. The effects of various diameter anchors and various depths and various spacing on the anchorage performance are taken into account. Some important conclusions are obtained. The results show that when the anchorage depth is 15d and the net anchorage spacing is greater than 80mm, the anchorage performance is similar to that of the single anchor. When the net anchorage space is less than 80mm, the 11%～17% discount of single anchorc's anchorage performance should be taken into account. The conclusions can provide some references to the design of anchor groups.