Knowledge about reinforcement in structural construction drawings
Basic Method for Reinforcement Calculation Chapter I Calculation of the first span reinforcement of the first section frame beam of the beam 2. Negative reinforcement length of end support: the first row is Ln/3+anchorage value of end support; The second row is the anchoring value of Ln/4+end support 3. Lower reinforcement length of lower reinforcement=clear span length+anchorage value of left and right supports Note: The calculation results are the same whether the lower reinforcement is arranged or not, so we can not enter the arrangement information when labeling the lower longitudinal reinforcement of the beam. The shear wall is the most difficult component in the calculation of reinforcement quantities, which is specifically reflected in: 1. Shear wall includes wall body, wall beam, wall column and opening, and their relationship must be taken into account; 2. The shear wall has various corner forms on the plane, such as right angle, T-angle, cross angle, oblique angle, etc; 3. The shear wall has various openings on the facade; 4. The wall body reinforcement may have single row, double row and multiple rows, and each row of reinforcement may be different; 5. Wall column has various stirrup combinations; 6. The coupling beam shall be distinguished between the top layer and the middle layer, and there are different calculation methods according to the position of the opening. Quantity to be calculated
