高層剪力墻結構消能減震設計
郝嶸,謝龍寶,李輝,李洪求
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(北京維拓時代建筑設計有限公司, 北京 100025)[摘要]為進一步提高結構的抗震性能,對高烈度區(qū)某一高層剪力墻結構進行了消能減震設計。介紹了金屬阻尼器的消能減震機制、選型及布置,并探討了附加阻尼比的計算方法;著重對比分析了在不同烈度地震作用下,減震前后結構受力、變形特點,同時,對比分析了等效阻尼與實際阻尼兩種計算方法的差異性。結果表明,通過消能減震設計可有效提高高烈度區(qū)高層剪力墻結構的安全標準。[關鍵詞]消能減震; 高層剪力墻結構; 阻尼比中圖分類號:TU352.1 文獻標識碼:A 文章編號:1002-848X(2015)14-0019-05
Seismic energy dissipation design of high-rise shear wall structuresHao Rong, Xie Longbao, Li Hui, Li Hongqiu(Beijing Victory Star Architecture & Civil Engineering Design Co., Ltd., Beijing 100025, China)Abstract: In order to improve the seismic performance of the structure, a highrise 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.Keywords: seismic energy dissipation; highrise shear wall structure; damping ratio
作者簡介:郝嶸,學士,高級工程師,一級注冊結構工程師,Email:haorong@vtjz.com。