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某住宅楼,砖混结构,6层加底层车库,主体高19.2m.房屋长43.1m×宽9.2m,条形平面,地处六度设防地震区。地质情况:表层有0.8m左右的粉质粘土层,下面即为淤泥和淤泥质粉质粘土夹层,属高压缩性的软弱地基,f_k值仅50～55kN/m~2。结构设计上未设置钢筋混凝土构造柱,仅设钢筋混凝土芯柱;每层均设有钢筋混凝土圈梁;楼板为预应力多孔板;墙体材料1～3层采用MU7.5小型混凝土空心砌块。4～7层采用MU5.0小型砌块。砌筑砂浆均为M5.0混合砂浆;基础采用钢筋混凝土片筏
A residential building, brick-concrete structure, 6-storey plus garage on the ground floor, with a height of 19.2m. The house is 43.1m long and 9.2m wide. It is a bar-shaped plane and is located in a six-degree seismic zone. Geological conditions: There is a silty clay layer of about 0.8m in the surface layer, and the following is a silt and silty silty clay sandwich, which is a soft foundation with high compressibility. The f_k value is only 50~55kN/m~2. The structural design is not provided with reinforced concrete structural columns, only reinforced concrete core columns; each layer is provided with reinforced concrete ring beams; the floor is prestressed porous plate; wall materials 1 to 3 layers using MU7.5 small concrete hollow block . 4-7 layers use MU5.0 small blocks. The masonry mortars are all M5.0 mixed mortars; the foundations are reinforced concrete slabs.