預(yù)應(yīng)力高強(qiáng)混凝土管樁（PHC樁）的配筋和力學(xué)性能
外徑 D (mm) | 壁厚 T (mm) | 單節(jié)樁長(zhǎng)(m) | 混凝土強(qiáng)度等級(jí) | 型號(hào) | 預(yù)應(yīng)力鋼筋配筋 | 螺旋筋規(guī)格 | 抗裂彎矩Mcr (KN.m) | 極限彎矩Mu (KN.m) | 管樁樁身結(jié)構(gòu)對(duì)應(yīng)的單樁豎向承載力最大特征值Ra(KN) | 樁身結(jié)構(gòu)豎向承載力設(shè)計(jì)值Rp(KN) | 理論質(zhì)量 (kg/m) |
300 | 70 | ≤11 | C80 | A | 6Φ7.1 | Φb4 | 25 | 37 | 900 | 1250 | 132 |
AB | 6Φ9.0 | 30 | 50 | ||||||||
B | 8Φ9.0 | 34 | 62 | ||||||||
C | 8Φ10.7 | 39 | 79 | ||||||||
400 | 95 | ≤14 | C80 | A | 7Φ9.0 | Φb4 | 54 | 81 | 1650 | 2250 | 237 |
AB | 7Φ10.7 | 64 | 106 | ||||||||
B | 10Φ10.7 | 74 | 132 | ||||||||
C | 13Φ10.7 | 88 | 176 | ||||||||
500 | 100 | ≤15 | C80 | A | 11Φ9.0 | Φb5 | 103 | 155 | 2300 | 3150 | 327 |
AB | 11Φ10.7 | 125 | 210 | ||||||||
B | 11Φ12.6 | 147 | 265 | ||||||||
C | 13Φ12.6 | 167 | 334 | ||||||||
500 | 125 | ≤15 | C80 | A | 12Φ9.0 | Φb5 | 111 | 167 | 2700 | 3700 | 383 |
AB | 12Φ10.7 | 136 | 226 | ||||||||
B | 12Φ12.6 | 160 | 285 | ||||||||
C | 15Φ12.6 | 180 | 360 |
