砖混结构建筑物,由于使用材料的脆性性质所决定,一般整体刚度较差,尽管采取一系列构造措施,诸如圈梁、构造柱等,其抗震性能有较大改善。但只是注重增强上部结构,而忽视基础的正确选型,以及对地基的必要的加固处理,也是难免会出现问题的。 一、概况 某砖混结构营业楼,三层,建筑面积2000m~2,一～二层营业大厅空旷。外墙370mm,内墙240mm,内柱为490×490mm砖柱,一层砖 Due to the brittle nature of the materials used, brick-concrete structures are generally poor in stiffness. Despite the adoption of a series of structural measures such as ring beams and structural columns, their seismic performance has been greatly improved. However, it is inevitable that the emphasis will be placed on strengthening the superstructure and ignoring the correct selection of foundations and the necessary reinforcement of the foundation. I. Overview A brick and concrete structure business building, three floors, construction area of ​​2000m~2, one to two business halls open. The outer wall is 370mm, the inner wall is 240mm, the inner column is a 490×490mm brick column, one layer brick