今年六月初,我队开始了预应力钢筋混凝土圓孔板的试制工作(先张法),经过二十多天的实践(除荷载试验尚未进行外),基本上取得了成功,现将其经济效果及试制中遇到的问題简述如下。一、经济效果比较从试制情况看,预应力钢筋混凝土圓孔板的经济效果是好的,是符合多快好省地建设社会主义总路线精神的。从所需的人工看,如果不考虑模型及设备制作,仅考虑钢筋张拉,混凝土灌注等工艺过 At the beginning of June this year, our team started trial production of prestressed reinforced concrete perforated plate (pre-tensioning method). After more than 20 days of practice (except the load test has not been carried out), our team has basically achieved success. The problems encountered in the effects and trial production are briefly described below. First, the economic effect comparison From the trial situation, the prestressed reinforced concrete circular plate economic effect is good, is in line with the principle of building a socialist general line more quickly and economically. From the desired artificial point of view, if you do not consider the model and equipment production, only consider the tensile steel, concrete pouring process