贮水池和水塔顶上的水箱,常用钢筋混凝土结构。这种结构筒身施工相当费事,需里外支模,连续浇筑。其单价也比较高,大约等于砖砌体的四倍。由于技术条件所限,一股不能施加预应力。为了抵抗渗漏,壁厚就得稍大一些,可达150～200毫米,最薄的也不小于120毫米。寒冷地区要求防冻,外面还得增加保温层。水池筒壁所受的张力,主要由钢筋承担。混凝土作为围护体,其潜力得不到充分发挥,造成浪费。因此,我们认为确有研究改革的必要。在正常的情况下,用外置预应力钢筋砖砌体来代替钢筋混凝土,是应当许 Water tanks on the top of tanks and towers are often reinforced concrete structures. The construction of such a tube body is quite time-consuming and requires the use of a mold inside and outside and continuous casting. Its unit price is also relatively high, about four times that of a brickwork. Due to the limitation of technical conditions, one cannot apply prestress. In order to resist leakage, the wall thickness has to be slightly larger, up to 150-200 mm, and the thinnest is not less than 120 mm. Cold areas require antifreeze, and insulation layers must be added outside. The tension on the wall of the pool is mainly borne by the reinforcement. Concrete as a protection body cannot fully realize its potential and cause waste. Therefore, we believe that there is indeed a need to study reforms. Under normal circumstances, the use of external prestressed reinforced brick masonry instead of reinforced concrete is a promise.