The diameter of each longitudinal reinforcement shall not be greater than 1/20 of the cross-section size of the column with rectangular section in that direction, or 1/20 of the chord length of the column with circular section where the longitudinal reinforcement is located; For other structural types, the frame shall not be greater than 1/20 of the length of the rectangular section column cut in that direction, or 1/20 of the chord length of the circular section column at the position of the longitudinal reinforcement