Building materials knowledge purchase skills The simplest shape of the reinforcing ring is a rectangular column attached to the surface of the product, but in order to meet some production or structural considerations, the shape and size of the reinforcing ribs need to be changed as shown in the following figure. The position of the bottom of the product must be rounded to eliminate excessive stress concentration. The rounded corner design also gives the runner a gradual shape to fill the cavity with curvature. Problems such as water trapping will also lengthen the production cycle and increase production costs. Shield Reinforcement Ring,Tunnel Reinforcement Ring,Shield Tunnel Ring,Concrete Surface Of Ring Anshan Lijian Engineering Group Co. LTD , https://www.lijianformwork.com