2 a systematic research is done on the lateral behavior of braced steel frame system and the nonlinear behavior of concentrically braced frames ( cbfs ) and eccentrically braced frames ( ebfs ) is analyzed 2对支撑体系的抗侧力性能进行了系统的研究，对中心支撑体系和偏心支撑体系的非线性性能进行了简化分析。
6 with the numerical technology adopted to reinforce experimental research , different elements are considered in the nonlinear analysis on steel frame and braced frame according to different mechanics characteristics 6本文利用数值模拟技术完善试验研究，采用不同的单元类型对钢框架和支撑框架进行了非线性分析。
In high seismic regions , eccentrically braced frames are quite popular , they have good ductility and can sustain to severe cyclic loads , and they are used widely in seismic design 在强震区，偏心支撑框架是一种非常合适的结构形式，它具有良好的延性可以承受剧烈的循环荷载作用，在抗震结构中已得到了广泛的应用。
In the paper , friction energy dissipation is discussed mainly . using nonlinear spring element and combination element , the finite element model of friction energy dissipating brace frame is established 本文针对摩擦耗能这一减震形式进行讨论，采用非线性弹簧单元、组合单元建立摩擦耗能支撑框架结构的有限元模型。
" code for seismic design of building " stipulate , eccentrically braced frames are used in seismic regions no . 8 or above , but they have not yet used up to present time for buildings designed by domestic designers 我国《建筑抗震设计规范》规定， 8度以上宜采用偏心支撑，但我国至今没有一个自行设计的工程用过这种支撑。
In this paper , the practical calculations of eccentrically braced frames are discussed with reference to the us examples and codes on basis of the specifications of china 本文主要结合美国计算例题、相关规范，并依据我国规范，对偏心支撑框架的实际计算方法进行讨论，总结出适合我国规范和实际情况的偏心支撑框架设计计算方法。
Adding the eccentric brace to the reinforced concrete frame is for strengthening the side stiffness and improving the load - bearing and energy consume ability . when the braced frame resists external force , there is higher side - stiffness at the state of elasticity 在钢筋砼框架结构中加入偏心支撑，其主要目的是提高钢筋砼框架的抗侧刚度、改善框架结构的承载力和耗能能力。
By this rule , in many braced frame structures , where the lateral stiffness of the bracing system is less than five times that of the frame ( weakly braced frame ) , the effective length column length is determined as if no bracing exists at all 显然，按照目前设计规范确定框架柱的计算长度系数的方法，将会使大部分设有支撑体系的结构，其支撑对框架稳定的有利作用得不到有效的利用。
Eccentrically braced frames have the advantages of both moment - resisting frames and concentrically braced frames . this system can provide high elastic stiffness and large inelastic energy dissipation capacity in resisting lateral loads caused by seismic activity 偏心支撑框架综合了抗弯框架和中心支撑框架的优点，能够提供很大的弹性刚度和非弹性能量耗散能力，以抵抗地震作用产生的侧向力。
Eccentrically braced frames ( ebfs ) combines the strength and stiffness of concentrically braced frames ( cbfs ) with the inelastic behavior and energy dissipation of moment - resisting frames , especially inelastic deformation of link absorbs seismic energy 偏心支撑框架结合了中心支撑框架的强度、刚度高和普通抗弯框架的延性、耗能性能好的优点，通过耗能梁段的非弹性变形耗散大量输入结构的地震能量。
