Research on the Calculation Method of Minimum Reinforcement Quantity for Reinforced Concrete Bending Members
The calculation method for the minimum reinforcement amount of reinforced concrete bending members in the"Design Standard for Concrete Structures"(GB/T50010-2010)is relatively complex and requires multiple iterations.When designing the reinforcement of subway station beams,the calculation workload is large and prone to errors.In order to solve the above problems,a calculation method based on crack value back calculation for reinforcement is proposed.This method simplifies the calculation process of the minimum reinforcement amount for reinforced concrete bending members.Compared with the calculation methods in existing specifications,the calculation method is simple,the number of calculations is significantly reduced,and the calculation results are consistent.The research results have been successfully applied to the design work of Chunyang Road Station in the first phase of Qingdao Metro Line 15,providing reference for the rapid calculation of the minimum reinforcement quantity of reinforced concrete bending members in batches.