在毛主席的革命路线指引下,我局预应力构件试验小组在学习兄弟单位先进经验的基础上,结合本局实际情况进行了构件试验,对过去的普通钢筋混凝土定型构件进行了改革,编制了短向圓孔板、长向圓孔板、短跨平板、门窗过梁、盖板管沟等五种中小型预应力构件定型图集,该套图集具有节省钢材、水泥,减轻构件重量,降低工程造价等优点,因此,即将在全局推广生产和使用。为了保证构件的生产质量,我们针对该五 Guided by Chairman Mao’s revolutionary line, based on the advanced experience of our brothers and institutes, the pilot team of prestressed components of our bureau conducted component tests based on the actual conditions of our bureau. We have reformed the past ordinary reinforced concrete profiled components and prepared short Forming five kinds of small and medium-sized prestressed component atlas, such as circular hole plate, long-length circular hole plate, short span flat plate, door and window lintel and cover pipe trench, etc. This set of atlas has the advantages of saving steel and cement, reducing component weight, Cost and other advantages, therefore, will promote the production and use of the overall situation. In order to ensure the quality of production of components, we focus on the five