AEC & BIM Knowledgebase Error Solution Guide Columns Columns Messages in column controls and possible solutions are listed under this heading. Axial Capacity Insufficient in Column Maximum Pursmail in Colon Exceeded. Insufficient Reinforcement in Column Column cutting security is not provided Circular column diameter cannot be smaller than 350 mm. The smallest dimension of the columns cannot be smaller than 300 mm. αi < 0.70 Next TopicAxial Capacity Insufficient in Column ×