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（1 中國(guó)建筑設(shè)計(jì)研究院有限公司, 北京 100044; 2 北京交通大學(xué)土木建筑工程學(xué)院, 北京 100044）

［摘要］結(jié)合廈門(mén)新機(jī)場(chǎng)航站樓指廊工程，研究在復(fù)雜框架結(jié)構(gòu)中，通過(guò)采用防屈曲支撐減震設(shè)計(jì)方案來(lái)滿(mǎn)足結(jié)構(gòu)的抗震性能目標(biāo)的方法。介紹了本工程的結(jié)構(gòu)體系特點(diǎn)、采用防屈曲支撐的必要性以及防屈曲支撐框架的設(shè)計(jì)方法。防屈曲支撐框架結(jié)構(gòu)的設(shè)計(jì)包括構(gòu)件設(shè)計(jì)和防屈曲支撐框架結(jié)構(gòu)整體抗震性能分析兩大部分內(nèi)容。作為消能減震構(gòu)件，防屈曲支撐既能在彈性階段為主體結(jié)構(gòu)提供抗側(cè)剛度，又能在中震、大震階段通過(guò)自身的滯回耗能為主體結(jié)構(gòu)提供附加阻尼比，減小地震能量。從小震、中震和大震三個(gè)階段，深入分析了防屈曲支撐框架的抗震性能，驗(yàn)證了防屈曲支撐在復(fù)雜框架結(jié)構(gòu)中良好的減震效果。

［關(guān)鍵詞］廈門(mén)新機(jī)場(chǎng)； 減震； 防屈曲支撐； 航站樓； 非線性時(shí)程； 恢復(fù)力模型； 抗震性能

中圖分類(lèi)號(hào)：TU352.12， TU398-7文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)08-0007-08

Study on design method of seismic energy dissipation of Xiamen New Airport structure

Chen Wei1， Fan Zhong1， Zhang Na1,2， Gao Song1

（1 China Architecture Design  Group Co., Ltd., Beijing 100044, China;  

2 School of Civil Engineering, Beijing Jiaotong University， Beijing 100044, China）

Abstract:Combined with the project of the Xiamen New Airport terminal corridor building, the seismic performance of the complex structure designed with buckling restrained braces (BRB) was studied. The characteristics of the structural system of the project， the necessity of adopting the BRB and the design method of the buckling restrained braced frame were introduced. The design of the buckling restrained braced frame structure includes two parts: the design method of braces and the seismic performance of the frame structure with BRB. As the energy dissipation component, BRB can provide lateral stiffness for the main structure in  elastic stage, but also provide additional damping ratio for the main structure in moderate and rare earthquake stage through its hysteretic energy  to reduce the earthquake energy. In the three stages of frequent, moderate and rare earthquake, the seismic performance of the frame with BRB was analyzed. The results show that the BRB has good energy dissipation effect in complex frame structure.

Keywords:Xiamen New Airport; energy dissipation; buckling restrained brace； terminal； nonlinear time history analysis； restoring force model； seismic performance

作者簡(jiǎn)介：陳巍，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: weichen@cadg.cn。