Seismic control system of tensile brace and friction damper combination
“FSD is a friction damper that uses high-tension bolts,and it has been applied to many buildings.During an earthquake,the FSD absorbs buildings vibration energy by the friction between a brake pad and a stainless-steel plate fastened with high-tension bolts.When reinforcing low-rise buildings,the installation space is often narrow and limited.Therefore,there are demands for slim dampers.Usually,dampers are installed into the brace,which act on tension and compression.Hence,reducing the brace cross section would directly save more space.However,in this case,the load at which the brace can be borne is determined by its buckling strength.Therefore,the brace section becomes larger than that of the required damper strength,and it may lead to ineffective design.In this study,new dampers that combine the tensile brace and the FSD are proposed.Static loading tests were conducted for the proposed damper,and stable damping performance was confirmed.Furthermore,the numerical analysis considering geometric nonlinearity was conducted,and it was confirmed that the numerical analysis could accurately simulate the experimental results.And this technology has already been adopted for retrofitting of some low-rise buildings.
friction damper loading test numerical analysis geometric non-linear
H.Hirata S.Gokan Y.Utsumi J.Nomura T.Sano T.Hotta
Obayashi Corporation,Tokyo,Japan JR Central Consultants Company,Nagoya,Japan
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
402-410
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）