摘 要 消能支撑框架作为一种新型的消能减震结构形式，不是采取传统的“强化”主体结构的抗震思路，而是在一跨或几跨框架柱间增设消能阻尼装置，通过消能支撑体系的非弹性变形以耗散地震能量，使结构地震反应得到大大的衰减，从而保证了主体结构在强震中的安全，因此消能支撑是一种安全可靠的结构减震体系。但到目前为止，对这类结构体系抗震性能的研究相对较少，尤其是对不同布置形式的消能支撑研究则更少，因此，对带有不同形式消能支撑的框架地震反应进行研究具有重要的意义。 本文以某带有消能支撑的大型火电厂框架为研究对象，采用经验证的数值模拟方法分别对普通纯框架结构模型和X型、K型两个不同布置形式的消能支撑框架结构进行了分析，并深入的研究了其变形性能、塑性铰的出现位置及发展顺序、破坏过程及特征以及消能支撑结构的抗震性能。 研究结果表明，在纯框架基础上增设消能支撑不仅能提高结构的抗侧移刚度，而且还能有效地改善结构在罕遇地震作用下的抗震性能；此外经过分析比较，可得X型支撑较K型支撑抗震性能良好；且本文模拟结论符合原试验结果规律，因此所用模拟方法可作为此类结构的一种合理可靠且数据可信的计算方法，可以对类似的问题进行研究分析。

Energy-Dissipation Braced Frame(EDBF) as a new kind of energy-disspition structure forms. This kind of structure is not to adopt the traditional thinking of "strengthen" the main structure, but to dissipate a great deal of earthquake energy by the non-elastic distortion of the energy-dissipation braced frame systems, reduce seismic response of structure greatly, consequently, ensure main structure safety under strong motion, so the energy-dissipation braced frame structure is a kind of structure that is safe. but, the study on the mechanic characteristics of the EDBF is very poor at present, especially for the EDBF with different collocation forms. So it has a great significance to go deep into researching the aseismic behavior of it. In this thesis, the longitudinal braced frame of power factory with energy-dissipation as a object, based on it a frame structure model and X type、K type EDBF are established respectively and analyzed in the way of validated method of simulation, and go deep into researching the deformation performance、the emergence of the plastic hinge location and order of development、the failure course and feature, and the aseismic behavior of energy-dissipation braced frame structure. The results shows that not only excellent displacement stiffness but also favorable energy-dissipation ability under the strong earthquake energy are obtained by adding energy-dissipation brace system in span of pillars, and X type of energy-dissipation braced frame structure has a better aseismic behavior than K type. At last some original conclusion and advice is attained in this thesis, the foundation is provided for application of EDBF.