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李國強1，孫飛飛1，官 海2，胡大柱1
(1同濟(jì)大學(xué)，上海200092; 2上海藍(lán)科鋼結(jié)構(gòu)技術(shù)開發(fā)有限責(zé)任公司，上海200092)[摘要] 屈曲約束支撐是一種高效的抗側(cè)力構(gòu)件，本文介紹屈曲約束支撐基本原理、屈曲約束支撐框架的特點以及國產(chǎn)TJ型屈曲約束支撐的工程應(yīng)用。工程應(yīng)用結(jié)果表明，TJ型屈曲約束支撐在降低結(jié)構(gòu)地震作用、降低用鋼量以及總造價、改善結(jié)構(gòu)薄弱層性能、增大結(jié)構(gòu)抗扭剛度、增大結(jié)構(gòu)耗能能力、框架結(jié)構(gòu)加固等方面具有較好的應(yīng)用價值。且當(dāng)軸心受力的鋼構(gòu)件長細(xì)比較大時候，采用屈曲約束支撐具有構(gòu)件造價的優(yōu)勢。
[關(guān)鍵詞] 屈曲約束支撐；抗震性能；加固Engineering Application of TJ-type Buckling Restrained Brace
Li Guoqiangl, Sun Feifeil, Gong Haj2, Hu Dazhul
(1 Tongji University, Shanghai 200092, China; 2 Shanghai Lanke Steel Structure Co. Ltd., Shanghai 200092, China)Abstract: Buckling restrained brace( BRB) is a high efficiency lateral force-resisting member. The basic principle of the BRB, the characteristic of the frame with BRB is presented. The engineering applications of TJ-type BRB are introduced. The TJ-type BRB can be used in decreasing the earthquake actions, saving the steel consumptions, improving the behaviors of the weak story, increasing the torsional stiffness, increasing energy dissipation. And when the slenderness ratio of brace is big, the BRB is more economic.
Keywords: buckling restrained brace; seismic behavior; structural strengthening
