某办公楼的改造加固设计翟 磊 石昌伶 赵冰冰 敬玲(淄博华艺建筑设计有限公司,淄博 ) 摘 要首先,通过分析加层后建筑模型的动力特性,确定需要加固的部位。经分析,原结构主要存在框架柱轴压比超限、框架柱加密区体积配箍率不足、框架梁箍筋配筋不够和构造措施偏弱等问题;其次,对相应的部位进行抗震加固设计;最后验算加固后加层扩建结构模型的各项性能指标。关键词 框架加层; 轴压比; 配箍率; 抗震加固Reinforcement Design of An office buildingZHAI Lei, SHI Chang-ling,ZHAO Bing-bing, JING LingAbstract : First, the dynamic characteristics of building models in the analysis plus the layer, to determine the need to reinforce the site. Framework for analysis, the original structure of a