某工程为砖木结构平房办公室,内外墙厚度均为24cm,双坡顶瓦屋面,檐高3 m,跨度5.5m,开间3.5m,建筑面积202m~2。基础设计为3:7灰土垫层,宽70cm,厚30cm,灰土下皮至自然地面70cm。砖基础放脚底宽49cm,以75号红砖、50号水泥砂浆砌筑。建设地址情况:土壤类别为亚粘土,天然含水 A project is a brick-wood structure bungalow office, with internal and external wall thicknesses of 24cm, double-slope top tile roofs, 3m height, 5.5m span, 3.5m bay, and 202m~2 building area. The basic design is a 3:7 gray earth cushion with a width of 70cm and a thickness of 30cm. The ash soil under the skin is 70cm from the natural ground. The base of the brick base is 49cm wide and it is masonated with No. 75 red brick and No. 50 cement mortar. Construction site situation: soil type is sub-clay, natural water-bearing