For seismic retrofit steel frame buildings, on-site welding and drilling for bolted joint often can not be applied because of fire safety concerns, overly thin plate and section loss. The authors have proposed a welding-free joint method for existing steel pipe members consisting of adhesive and non-adhesive bonding connections.
This paper shows the mechanism of the proposed welding-free joint method, the results of cyclic loading tests, and a simplified method to evaluate the joint capacity. The cyclic loading tests were conducted to clarify the effect of the existing steel pipe size and the joint geometry on the load-carrying capacity of the joints. The simplified evaluation method of joint capacity was established to estimate the stress condition of the adhesive bonding joints and to evaluate the joint capacity with several assumptions. Furthermore, good correspondence could be confirmed by comparing the simplified evaluation method and test results.
