| Title |
An Experimental Study on the Shear Behaviour of Post-Installed Anchors for Seismic Retrofit |
| Authors |
Yun, Soo-Yong ; ParkJi-Hun |
| Keywords |
post-installed anchor ; bonded anchor ; expansion anchor ; shear strength ; displacement |
| Abstract |
Monotonic and cyclic shear tests for bonded anchors and expansion anchors in concrete were conducted in order to investigate the influence of the concrete strength, crack width and loading protocol. Crack is induced artificially through the whole depth of concrete member in which anchors are installed and monitored during tests for cracked concrete. Based on the test result, characteristic strengths corresponding to a 5% probability of nonexceedance with a confidence of 90% and minimum strengths are obtained and compared with reference strengths including characteristic strengths in the technical approval of each anchor and design strength based on domestic design codes. In addition, anchor displacements at the reference strengths are interpolated from load-displacement curves, and appropriate reference strengths is proposed for anchor design that can limit the anchor displacement. |