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地震是由于地面的运动,使地面上原来处于静止的建筑物受到动力作用而产生强迫振动,因而在结构中产生内力、变形和位移。经过简化后模型的动力学分析,即一次次的震害分析进行修正、补充,得到一些建筑物在地震作用下的反应机理及破坏形式。框排架结构体系由于质量、刚度分布较不均匀,其在地震作用下扭转效应显著,国内对该结构形式进行了研究。针对某一实际发电厂情况,对钢筋混凝土横向框排架、纵向框架-剪力墙结构的发电厂主厂房进行单双向地震力反应分析。研究了该类结构的动力特性,供设计时参考。
Earthquakes are caused by the movement of the ground, which force the original static buildings on the ground to generate forced vibration, thus generating internal forces, deformations and displacements in the structure. After simplification, the dynamic analysis of the model, that is, the analysis of seismic damage again and again to make corrections and supplements, some of the building under the action of the earthquake reaction mechanism and damage form. Due to the uneven distribution of the mass and the stiffness of the frame-framed structural system, the torsional effect of the frame-framed structural system is remarkable due to the earthquake, and the structural form has been studied domestically. According to the situation of an actual power plant, single and bidirectional seismic response analysis is carried out on the main power plant of the reinforced concrete transverse frame and vertical frame-shear wall structure. The dynamic characteristics of this kind of structure are studied for design reference.