2. End bearing negative reinforcement. Length of negative reinforcement of end bearing: the first line LN/3+ anchorage value of end bearing. The second line is the anchorage value of LN/4+ end brace.
3, the lower reinforcement. Lower reinforcement length = clear span length+anchorage value of left and right supports. The above three types of steel bars all involve bearing anchorage, so the judgment of bearing anchorage of the above three types of steel bars is summarized: the bearing width is ≥Lae and ≥ 0.5 HC+5d, which is a straight anchor, and Max(Lae, 0.5 HC+5d) is taken. The anchorage value of steel bar end bearing = bearing width ≤Lae or ≤ 0.5 HC+5d, which is the bending anchor, and Max(Lae, bearing width-protective layer+15d) is taken. The anchorage value of the middle support of steel bar = =Max(Lae, 0.5hc+5d).
4. Waist tendon. Structural reinforcement: structural reinforcement length = clear span length +2× 15d, torsion reinforcement: the algorithm is the same as that of reinforcement piercing.
5. hanging bar. Length of steel hanger = 2× anchorage (20d)+2× length of inclined section+width of secondary beam +2×50, in which height of frame beam >; Included angle of 800mm = 60, included angle of ≤800mm = 45.
6, lacing. Length of lacing = (Liang Kuan -2× protective layer)+2×1.9d (seismic hook value) +2d, quantity of lacing: If the spacing of lacing is not given in the plane input, quantity of lacing = (stirrup quantity /2)× (structural reinforcement quantity /2). If the lacing spacing is given, the lacing quantity = lacing length/lacing spacing.
7. stirrup. Stirrup length = (Liang Kuan -2× protective layer+beam height -2× protective layer) * 2+2× 1 1.9d+8d, stirrup number = (encrypted area length/encrypted area spacing+1) × 2+ (unencrypted area length/unencrypted area spacing)