【作者】 姚志华； 保海娥； 罗开海； 白雪霜；

【Author】 Yao Zhihua;Bao Haie;Luo Kaihai;Bai Xueshuang;China Academy of Building Research;

【机构】 中国建筑科学研究院；

【摘要】 某办公楼原为5层砌体结构,因使用需要改造加层为10层房屋,由于加层幅度较大,初步分析采用大尺寸框架柱外套结构作为该办公楼的加层方案。但由此产生的基础设计、抗震概念设计等存在较多问题。结合工程实例,重点论述了外套结构基础方案以及结构抗震概念设计等主要内容。更多还原

【Abstract】 A building,which was originally a five-storey masonry structure,becomes a ten-storey structure after adding storeys to fit the use.Given the significant addition in layers,the scheme of big size column structure was chosen by preliminary analysis.The foundation design and the seismic concept design of buildings have many problems.With an engineering example,foundation design of separated storey-adding structure and the measures to the problems that seismic concept design of buildings does not meet the requirements are discussed.更多还原