《水利水电建筑工程概预算定额》中的钢筋制作安装定额原规定只有一个子目。子目说明适用范围为:水工建筑物各部位及预制构件;从适用范围说明,它广泛综合了水工建筑各类型建筑物、各种规格直径、制作安装的钢筋难易程度不同得出的结果。无可非议,在指令性计划经济时代,它起到了积极有效控制投资的作用。随着改革开放不断深入,建设 “Water Conservancy and hydropower construction project budget quota” in the production of steel production and installation of the original provisions of only one subheading. Subheadings for the scope of application: all parts of hydraulic structures and prefabricated components; from the scope of application, which integrates a wide range of hydraulic construction of various types of buildings, a variety of specifications, the difficulty of making and installing the different steel obtained result. Undoubtedly, in the era of the mandatory planned economy, it has played a positive and effective role in controlling investment. With the deepening of reform and opening up, construction