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为进一步提高结构的抗震性能,对高烈度区某一高层剪力墙结构进行了消能减震设计。介绍了金属阻尼器的消能减震机制、选型及布置,并探讨了附加阻尼比的计算方法;着重对比分析了在不同烈度地震作用下,减震前后结构受力、变形特点,同时,对比分析了等效阻尼与实际阻尼两种计算方法的差异性。结果表明,通过消能减震设计可有效提高高烈度区高层剪力墙结构的安全标准。
In order to further improve the seismic performance of the structure, a high-rise shear wall structure with high energy intensity was designed to dissipate energy and reduce vibration. The energy dissipation mechanism, the selection and the arrangement of the metal damper are introduced. The calculation method of the additional damping ratio is also discussed. The stress and deformation characteristics of the structure before and after damping are emphasized and contrasted emphatically. At the same time, The differences between the equivalent damping and the actual damping are compared and analyzed. The results show that the safety design of high-rise shear wall structure in high intensity area can be effectively improved by energy dissipation design.