基本信息

---

下载

文档摘要

---

（公路桥梁）混凝土强度和模量

强度单位C25C30C35C40C45C50C55C60C65C70C75C80

fckN/mm216.720.123.426.829.632.435.538.541.544.547.450.2

ftkN/mm21.782.012.202.402.512.652.742.852.933.003.053.10

fcdN/mm211.513.816.118.420.522.424.426.528.530.532.434.6

ftdN/mm21.231.391.521.651.741.831.891.962.022.072.102.14

422.803.003.153.253.353.453.553.603.653.703.753.80

Ec×10N/mm

（公路桥梁）钢筋强度和模量

强度fskfsdfsdEs

×105

单位222

N/mmN/mmN/mm

N/mm2

HPB3003002502502.10

HRB400400330330

2.00

HRB500500415400

钢筋的计算截面面积及公称质量表

2

直径不同根数直径的计算截面面积(mm)

(mm)123456789

628.35785113142170198226254

850.3101151201252302352402453

1078.5157236314393471550628707

12113.12263394525656787919041017

1415