6-7,6 指上部钢筋,7 指下部钢筋
梁纵向钢筋排成一排时的最多根数(砼保护层厚 25mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 3 3-4 4 5-6 6-7 7-8 9-10 10-11 11-12 12-14 13-15 16-18 18-20 20-23 23-26 14 2-3 3 4 5 6-7 7-8 8-9 9-10 10-12 12-13 13-14 15-17 17-19 20-22 22-25 16 2-3 3 3-4 5 6 7 8-9 9-10 10-11 11-12 12-14 14-16 16-18 19-21 21-23 18 2 3 3-4 4-5 5-6 6-7 7-8 8-9 10-11 11-12 12-13 14-15 16-18 18-20 20-22 20 2 3 3 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-12 13-15 15-17 17-19 19-21 22 2 2-3 3 4 5 6 6-7 7-9 8-10 9-11 10-12 12-14 14-16 16-18 17-20 25 2 2-3 3 3-4 4-5 5-6 6-7 7-8 7-9 8-10 9-11 11-13 12-15 14-17 15-19 28 2 2 2-3 3-4 4 4-5 5-6 6-7 7-8 7-9 8-10 9-12 11-13 12-15 14-17 32 1-2 2 2 3 3-4 4-5 4-5 5-6 6-7 6-8 7-9 8-10 9-12 11-13 12-15 36 1 2 2 2-3 3 3-4 4-5 5-6 5-6 6-7 6-8 7-9 8-10 10-12 11-13 40 1 1-2 2 2-3 3 3-4 4 4-5 5-6 5-6 6-7 7-8 8-9 9-11 10-12
梁纵向钢筋排成一排时的最多根数(砼保护层厚 30mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 2-3 3 4 5 6-7 7-8 8-9 10-11 11-12 12-13 13-15 15-17 18-20 20-23 23-26 14 2 3 3-4 5 6 7-8 8-9 9-10 10-11 11-13 12-14 15-17 17-19 19-22 22-24 16 2 3 3-4 4-5 5-6 6-7 8 9-10 10-11 11-12 12-13 14-16 16-18 18-21 21-23 18 2 3 3 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-13 13-15 16-17 18-20 20-22 20 2 3 3 4 5 6-7 7-8 8-9 9-10 10-11 11-12 13-14 15-17 17-19 19-21 22 2 2-3 3 4 4-5 5-6 6-7 7-8 8-9 9-10 10-12 12-14 14-16 15-18 17-20 25 2 2 2-3 3-4 4-5 5-6 6-7 6-8 7-9 8-10 9-11 10-13 12-15 14-17 15-19 28 1-2 2 2-3 3 4 4-5 5-6 6-7 6-8 7-9 8-10 9-11 11-13 12-15 14-17 32 1 2 2 2-3 3-4 4-5 4-5 5-6 6-7 6-8 7-8 8-10 9-12 11-13 12-15 36 1 1-2 2 2-3 3 3-4 4-5 4-5 5-6 6-7 6-8 7-9 8-10 9-12 11-13 40 1 1-2 2 2 3 3-4 4 4-5 5-6 5-6 6-7 7-8 8-9 9-11 10-12
梁纵向钢筋排成一排时的最多根数(砼保护层厚 35mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 2 3 3-4 5 6 7-8 8-9 9-10 10-12 12-13 13-15 15-17 18-20 20-23 22-25 14 2 3 3 4-5 5-6 7 8-9 9-10 10-11 11-12 12-14 15-16 17-19 19-21 21-24 16 2 3 3 4-5 5-6 6-7 7-8 8-9 10-11 11-12 12-13 14-15 16-18 18-20 20-23 4 5 6-7 7-8 8-9 9-10 10-11 11-12 13-15 15-17 17-19 20-22 18 2 2-3 3 20 2 2-3 3 4 5 6 7 8-9 9-10 10-11 11-12 13-14 15-16 17-19 19-21 22 2 2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 12-13 13-16 15-18 17-20 25 1-2 2 2-3 3-4 4-5 5-6 5-7 6-8 7-9 8-10 9-11 10-13 12-15 13-17 15-19 28 1 2 2 3 3-4 4-5 5-6 6-7 6-8 7-9 8-9 9-11 11-13 12-15 13-17 32 1 1-2 2 2-3 3-4 4 4-5 5-6 5-7 6-8 7-8 8-10 9-11 10-13 12-15 36 1 1-2 2 2-3 3 3-4 4-5 4-5 5-6 5-7 6-7 7-9 8-10 9-12 10-13 40 1 1 1-2 2 2-3 3-4 3-4 4-5 4-5 5-6 5-7 6-8 7-9 8-10 9-12
梁纵向钢筋排成一排时的最多根数(砼保护层厚 40mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 2 3 3 4-5 5-6 7 8-9 9-10 10-12 11-13 13-14 15-17 17-20 20-22 22-2
5 14 2 2-3 3 4-5 5-6 6-7 7-8 9-10 10-11 11-12 12-13 14-16 17-19 19-21 21-24 16 2 2-3 3 4 5 6-7 7-8 8-9 9-10 10-12 11-13 14-15 16-18 18-20 20-23 18 2 2 3 4 5 6 7-8 8-9 9-10 10-11 11-12 13-15 15-17 17-19 19-21 20 2 2 3 4 5 6 7 8 9 10-11 11-12 13-14 15-16 17-18 19-21 22 1-2 2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-13 13-15 15-17 17-20 25 1 2 2 3 4 4-5 5-6 6-7 7-8 8-9 8-10 10-12 12-14 13-16 15-18 28 1 2 2 3 3-4 4-5 5-6 5-7 6-8 7-8 8-9 9-11 10-13 12-15 13-16 32 1 1-2 2 2-3 3 3-4 4-5 5-6 5-7 6-7 7-8 8-10 9-11 10-13 12-14 36 1 1 2 2 3 3-4 4 4-5 5-6 5-7 6-7 7-9 8-10 9-11 10-13 40 1 1 2 2 2-3 3 3-4 4-5 4-5 5-6 5-7 6-8 7-9 8-10 9-12
6-7,6 指上部钢筋,7 指下部钢筋
梁纵向钢筋排成一排时的最多根数(砼保护层厚 25mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 3 3-4 4 5-6 6-7 7-8 9-10 10-11 11-12 12-14 13-15 16-18 18-20 20-23 23-26 14 2-3 3 4 5 6-7 7-8 8-9 9-10 10-12 12-13 13-14 15-17 17-19 20-22 22-25 16 2-3 3 3-4 5 6 7 8-9 9-10 10-11 11-12 12-14 14-16 16-18 19-21 21-23 18 2 3 3-4 4-5 5-6 6-7 7-8 8-9 10-11 11-12 12-13 14-15 16-18 18-20 20-22 20 2 3 3 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-12 13-15 15-17 17-19 19-21 22 2 2-3 3 4 5 6 6-7 7-9 8-10 9-11 10-12 12-14 14-16 16-18 17-20 25 2 2-3 3 3-4 4-5 5-6 6-7 7-8 7-9 8-10 9-11 11-13 12-15 14-17 15-19 28 2 2 2-3 3-4 4 4-5 5-6 6-7 7-8 7-9 8-10 9-12 11-13 12-15 14-17 32 1-2 2 2 3 3-4 4-5 4-5 5-6 6-7 6-8 7-9 8-10 9-12 11-13 12-15 36 1 2 2 2-3 3 3-4 4-5 5-6 5-6 6-7 6-8 7-9 8-10 10-12 11-13 40 1 1-2 2 2-3 3 3-4 4 4-5 5-6 5-6 6-7 7-8 8-9 9-11 10-12
梁纵向钢筋排成一排时的最多根数(砼保护层厚 30mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 2-3 3 4 5 6-7 7-8 8-9 10-11 11-12 12-13 13-15 15-17 18-20 20-23 23-26 14 2 3 3-4 5 6 7-8 8-9 9-10 10-11 11-13 12-14 15-17 17-19 19-22 22-24 16 2 3 3-4 4-5 5-6 6-7 8 9-10 10-11 11-12 12-13 14-16 16-18 18-21 21-23 18 2 3 3 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-13 13-15 16-17 18-20 20-22 20 2 3 3 4 5 6-7 7-8 8-9 9-10 10-11 11-12 13-14 15-17 17-19 19-21 22 2 2-3 3 4 4-5 5-6 6-7 7-8 8-9 9-10 10-12 12-14 14-16 15-18 17-20 25 2 2 2-3 3-4 4-5 5-6 6-7 6-8 7-9 8-10 9-11 10-13 12-15 14-17 15-19 28 1-2 2 2-3 3 4 4-5 5-6 6-7 6-8 7-9 8-10 9-11 11-13 12-15 14-17 32 1 2 2 2-3 3-4 4-5 4-5 5-6 6-7 6-8 7-8 8-10 9-12 11-13 12-15 36 1 1-2 2 2-3 3 3-4 4-5 4-5 5-6 6-7 6-8 7-9 8-10 9-12 11-13 40 1 1-2 2 2 3 3-4 4 4-5 5-6 5-6 6-7 7-8 8-9 9-11 10-12
梁纵向钢筋排成一排时的最多根数(砼保护层厚 35mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 2 3 3-4 5 6 7-8 8-9 9-10 10-12 12-13 13-15 15-17 18-20 20-23 22-25 14 2 3 3 4-5 5-6 7 8-9 9-10 10-11 11-12 12-14 15-16 17-19 19-21 21-24 16 2 3 3 4-5 5-6 6-7 7-8 8-9 10-11 11-12 12-13 14-15 16-18 18-20 20-23 4 5 6-7 7-8 8-9 9-10 10-11 11-12 13-15 15-17 17-19 20-22 18 2 2-3 3 20 2 2-3 3 4 5 6 7 8-9 9-10 10-11 11-12 13-14 15-16 17-19 19-21 22 2 2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 12-13 13-16 15-18 17-20 25 1-2 2 2-3 3-4 4-5 5-6 5-7 6-8 7-9 8-10 9-11 10-13 12-15 13-17 15-19 28 1 2 2 3 3-4 4-5 5-6 6-7 6-8 7-9 8-9 9-11 11-13 12-15 13-17 32 1 1-2 2 2-3 3-4 4 4-5 5-6 5-7 6-8 7-8 8-10 9-11 10-13 12-15 36 1 1-2 2 2-3 3 3-4 4-5 4-5 5-6 5-7 6-7 7-9 8-10 9-12 10-13 40 1 1 1-2 2 2-3 3-4 3-4 4-5 4-5 5-6 5-7 6-8 7-9 8-10 9-12
梁纵向钢筋排成一排时的最多根数(砼保护层厚 40mm)
梁宽 (mm) 150 180 200 250 300 350 400 450 500 550 600 700 800 900 1000 钢筋直径(mm) 12 2 3 3 4-5 5-6 7 8-9 9-10 10-12 11-13 13-14 15-17 17-20 20-22 22-2
5 14 2 2-3 3 4-5 5-6 6-7 7-8 9-10 10-11 11-12 12-13 14-16 17-19 19-21 21-24 16 2 2-3 3 4 5 6-7 7-8 8-9 9-10 10-12 11-13 14-15 16-18 18-20 20-23 18 2 2 3 4 5 6 7-8 8-9 9-10 10-11 11-12 13-15 15-17 17-19 19-21 20 2 2 3 4 5 6 7 8 9 10-11 11-12 13-14 15-16 17-18 19-21 22 1-2 2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-13 13-15 15-17 17-20 25 1 2 2 3 4 4-5 5-6 6-7 7-8 8-9 8-10 10-12 12-14 13-16 15-18 28 1 2 2 3 3-4 4-5 5-6 5-7 6-8 7-8 8-9 9-11 10-13 12-15 13-16 32 1 1-2 2 2-3 3 3-4 4-5 5-6 5-7 6-7 7-8 8-10 9-11 10-13 12-14 36 1 1 2 2 3 3-4 4 4-5 5-6 5-7 6-7 7-9 8-10 9-11 10-13 40 1 1 2 2 2-3 3 3-4 4-5 4-5 5-6 5-7 6-8 7-9 8-10 9-12