
| 抗震等级为四级及非抗震的受拉钢筋锚固长度laE、la | |||||||||||
| 钢筋牌号、涂膜情况、直径 | 混 凝 土 强 度 等 级 | ||||||||||
| C20 | C25 | C30 | C35 | C40 | C45 | C50 | C55 | C60 | |||
| HPB300 | 39d | 34d | 30d | 28d | 25d | 24d | 23d | 22d | 21d | ||
| HRB335 | 带肋钢筋 | d≤25 | 38d | 33d | 29d | 27d | 25d | 23d | 22d | 21d | 21d |
| 42d | 37d | 32d | 30d | 28d | 26d | 25d | 24d | 24d | |||
| 环氧树脂 涂层钢筋 | d≤25 | 48d | 42d | 37d | 34d | 32d | 29d | 28d | 27d | 27d | |
| d≥28 | 53d | 47d | 41d | 38d | 36d | 32d | 31d | 30d | 30d | ||
| HRB400 | 带肋钢筋 | d≤25 | — | 40d | 35d | 32d | 29d | 28d | 27d | 26d | 25d |
| 44d | 39d | 36d | 32d | 31d | 30d | 29d | 28d | ||||
| 环氧树脂 涂层钢筋 | d≤25 | 50d | 44d | 40d | 37d | 35d | 34d | 33d | 32d | ||
| d≥28 | 55d | 49d | 44d | 41d | 39d | 38d | 37d | 36d | |||
| HRB500 | 带肋钢筋 | d≤25 | 48d | 43d | 39d | 36d | 34d | 32d | 31d | 30d | |
| 53d | 48d | 43d | 40d | 38d | 36d | 35d | 33d | ||||
| 环氧树脂 涂层钢筋 | d≤25 | 60d | 54d | 49d | 45d | 43d | 40d | 39d | 38d | ||
| d≥28 | 66d | 60d | 54d | 50d | 48d | 44d | 43d | 42d | |||
| 抗震等级为三级的受拉钢筋锚固长度laE、人防锚固长度laF | |||||||||||
| 钢筋牌号、涂膜情况、直径 | 混 凝 土 强 度 等 级 | ||||||||||
| C20 | C25 | C30 | C35 | C40 | C45 | C50 | C55 | C60 | |||
| HPB300 | 41d | 36d | 32d | 29d | 26d | 25d | 24d | 23d | 22d | ||
| HRB335 | 带肋钢筋 | d≤25 | 40d | 35d | 31d | 28d | 26d | 24d | 23d | 22d | 22d |
| 44d | 39d | 35d | 31d | 29d | 27d | 26d | 25d | 25d | |||
| 环氧树脂 涂层钢筋 | d≤25 | 50d | 44d | 39d | 35d | 33d | 30d | 29d | 28d | 28d | |
| d≥28 | 55d | 49d | 43d | 39d | 37d | 33d | 32d | 31d | 31d | ||
| HRB400 | 带肋钢筋 | d≤25 | — | 42d | 37d | 34d | 30d | 29d | 28d | 27d | 26d |
| 47d | 41d | 38d | 33d | 32d | 31d | 30d | 29d | ||||
| 环氧树脂 涂层钢筋 | d≤25 | 53d | 47d | 43d | 38d | 37d | 35d | 34d | 33d | ||
| d≥28 | 59d | 52d | 48d | 42d | 41d | 39d | 38d | 37d | |||
| HRB500 | 带肋钢筋 | d≤25 | 50d | 45d | 41d | 38d | 36d | 34d | 33d | 32d | |
| 55d | 50d | 46d | 42d | 40d | 38d | 37d | 36d | ||||
| 环氧树脂 涂层钢筋 | d≤25 | 63d | 57d | 52d | 48d | 45d | 43d | 42d | 40d | ||
| d≥28 | 70d | 63d | 58d | 53d | 50d | 48d | 47d | 44d | |||
| 抗震等级为一、二级的受拉钢筋锚固长度laE | |||||||||||
| 钢筋牌号、涂膜情况、直径 | 混 凝 土 强 度 等 级 | ||||||||||
| C20 | C25 | C30 | C35 | C40 | C45 | C50 | C55 | C60 | |||
| HPB300 | 45d | 39d | 35d | 32d | 29d | 28d | 26d | 25d | 24d | ||
| HRB335 | 带肋钢筋 | d≤25 | 44d | 38d | 33d | 31d | 29d | 26d | 25d | 24d | 24d |
| 49d | 42d | 37d | 35d | 32d | 29d | 28d | 27d | 27d | |||
| 环氧树脂 涂层钢筋 | d≤25 | 55d | 48d | 42d | 39d | 37d | 33d | 32d | 30d | 30d | |
| d≥28 | 61d | 53d | 47d | 43d | 41d | 37d | 36d | 33d | 33d | ||
| HRB400 | 带肋钢筋 | d≤25 | — | 46d | 40d | 37d | 33d | 32d | 31d | 30d | 29d |
| 51d | 44d | 41d | 37d | 36d | 35d | 33d | 32d | ||||
| 环氧树脂 涂层钢筋 | d≤25 | 58d | 50d | 47d | 42d | 40d | 39d | 38d | 37d | ||
| d≥28 | d | 55d | 52d | 47d | 44d | 43d | 42d | 41d | |||
| HRB500 | 带肋钢筋 | d≤25 | 55d | 49d | 45d | 41d | 39d | 37d | 36d | 35d | |
| 61d | 54d | 50d | 46d | 43d | 41d | 40d | 39d | ||||
| 环氧树脂 涂层钢筋 | d≤25 | 69d | 62d | 57d | 52d | 49d | 47d | 45d | 44d | ||
| d≥28 | 76d | 69d | 63d | 58d | 54d | 52d | 50d | 49d |
