沈阳市城市建设局设计处,最近设计了一套适用于20米装配式钢筋混凝土T形梁桥的钢模。在设计前,曾派出工程师、技术员和工人多名到辽宁省交通厅、北京市市政工程局等地去取经。实践证明:“苏联装配式钢筋混凝土桥上构造预制块件钢模板标准图”用于20米跨径时(图1),是存在着许多问题的(详见本刊第三期第33页张玉书一文)。其主要问题可以归 Shenyang City Urban Construction Bureau Design Office recently designed a set of 20 meters for the prefabricated reinforced concrete T-beam bridge steel mold. In the design before, have sent engineers, technicians and workers to the Liaoning Provincial Department of Communications more than, Municipal Engineering Bureau and other places to learn from Beijing. Practice has proved that "There are many problems when the standard form of steel formwork for prefabricated blocks on the Soviet Union-assembled reinforced concrete bridge is used for a span of 20 meters (Figure 1) (for details, please refer to Zhang Yushu, One article). The main problem can be