梁配筋计算表
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混凝土强度设计值(N/mm2) |
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项目 |
强度种类 |
符号 |
C10 |
C15 |
C20 |
C25 |
C30 |
C35 |
C40 |
|
1 |
轴心抗压 |
fc |
5 |
7.5 |
10 |
12.5 |
15 |
17.5 |
19.5 |
|
2 |
弯曲抗压 |
fcm |
5.5 |
8.5 |
11 |
13.5 |
16.5 |
19 |
21.5 |
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钢筋等级 |
一级 |
二级 |
三级 |
冷拉一级 |
冷拉二级 |
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d≤25 |
d＞25 |
d≤25 |
d＞25 |
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|
强度N/mm2 |
210 |
310 |
290 |
340 |
250 |
380 |
360 |
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|
ξb |
0.614 |
0.544 |
0.556 |
0.528 |
0.588 |
0.488 |
0.498 |
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|
αs |
0.426 |
0.396 |
0.401 |
0.389 |
0.415 |
0.369 |
0.374 |
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|
|
0.544 |
0.556 |
0.528 |
0.58 |
0.508 |
0.518 |
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