High-strength blind-bolted T-stub with endplate tapping is a new joint that is applicable to the prefabricated joint of steel columns with closed sections and steel beams. The failure mode and force performance of this joint are affected by many factors. In order to disclose the relations of this joint with various parameters, a calculation formula for the bearing capacity of high-strength blind-bolted T-stub with endplate tapping was proposed. The influences of bolt diameter and plate thickness on mechanical performance, failure mode, and bear...