立式圆柱体钢罐盘梯,一般是在预制场分段加工预制成半成品,再安装在钢罐上。在预制时怎样确定盘梯的内、外侧板的曲率半径是个关键问题,曲率半径不合适,会给安装造成困难,甚至要切开重焊。过去一般是采取做模型按比例量出内侧板的半径,那样既麻烦也不准确。这次我们在某工程施工中,利用数学解析方法计算出内、外侧板的曲率半径,按照这个半径在平面上预制盘梯的半成品,将半成品安装在钢罐上都比较合适,加快了工程进度。 Vertical cylinder steel drum plate ladder, usually in the prefabricated field processing prefabricated into semi-finished products, and then installed in the steel tank. How to determine the radius of curvature of the inner and outer plates of the disk ladders during prefabrication is a key issue. The inappropriate radius of curvature will cause difficulties in the installation and even cut the heavy welding. The past is generally taken to do the model scaled to the radius of the medial plate, so cumbersome and not accurate. This time we in a project construction, the use of mathematical analysis method to calculate the radius of curvature of the inner and outer plates, in accordance with this radius prefabricated plate ladder in the semi-finished products, semi-finished products will be installed on steel cans are more appropriate to speed up the progress of the project .