高层剪力墙结构消能减震设计

Seismic energy dissipation design of high-rise shear wall structures

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 improve the seismic performance of the structure,a high-rise shear wall structure in high seismic intensity region was designed for seismic energy dissipation. The seismic energy dissipation mechanism,selection and layout of the metal damper were introduced and the calculation method of additional damping ratio was discussed. The structure stress and deformation characteristics before and after the seismic energy dissipation were focused on and compared under the different seismic intensities. At the same time,the differences of two calculation methods of equivalent damping and the actual damping were compared and analyzed. The results show that the safety standard of shear wall structure in high seismic intensity region can be effectively improved by seismic energy dissipation design.