- 摘 要
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（1 亞熱帶建筑科學國家重點實驗室， 2 建筑學院高層建筑結構研究所，華南理工大學，廣州 510640）
［摘要］根據我國79系列規(guī)范設計的某鋼筋混凝土高層建筑，由于使用功能的改變需要對結構進行抗震評估和加固。引入基于性能的抗震評估與加固方法，以結構層間位移和構件承載力需求作為性能目標，通過基于地震加速度記錄的非線性快速時程積分（FNA）方法進行結構分析。論證了該既有鋼筋混凝土高層建筑在控制加固費用的前提下采用增設粘滯耗能支撐的方法，加固后結構滿足“小震不壞、中震可修、大震不倒”的抗震設防目標。
［關鍵詞］基于性能；粘滯耗能支撐；抗震評估；加固
Performancebased seismic strengthening design for an existing RC high-rise building with viscous energy dissipation braces
Ji Jing1,2, Huang Yiyan2, Han Xiaolei1,2, Zheng Yi2, He Weiqiu2 (1 State Key Laboratory of Subtropical Architecture Science， 2 Tall Building Structure Research Institute,
College of Architecture and Civi Engineering, South China University of Technology, Guangzhou 510640, China)
Abstract:An existing reinforced concrete high-rise building designed according to the 1979 series Chinese codes need to be evaluated and strengthened for function alternation. The performancebased seismic evaluation and strengthening method is introduced to proove the criterion of “no damage under frequent earthquake, repairable under moderate earthquake, no collapse under severe earthquake” for an existing reinforced concrete structure in the case of reducing retrofit cost with viscous energy dissipation braces. For this method, the Fast Non-linear Analysis has been carried out, and both story drift ratio and capacity of components are set as performance targets.
Keywords:performance-based； viscous energy dissipation brace； seismic evaluation; strengthening
作者簡介：季靜，碩士，副教授，Email:cvjingji@scut.edu.cn。
