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某12层商住楼,框架结构,主体已封顶,填充墙基本砌筑完成,发现多个楼层梁板柱砼强度等级同等养护值小于设计值,现场实测结果也不满足设计,经验算,大部分柱子轴压比超出或接近规范限值,柱子配筋也不满足,需加固改造,采用在框架中增设部分剪力墙段,使其结构体系由框架结构变为框架-剪力墙结构,采取措施使其连为整体,协同工作,消除了安全隐患。
A 12-storey commercial and residential buildings, the framework of the main body has been capped, the basic construction of infilled walls completed and found that more than one floor concrete strength class beam strength conservation value is less than the design value, the field test results do not meet the design, experience, most of the pillars Axial compression ratio is beyond or close to the standard limit, the column reinforcement is not satisfied, need to be reinforced and modified, the use of additional part of the shear wall in the section, the structural system from the frame structure into a framework - shear wall structure, to take measures To make it as a whole, work together to eliminate security risks.