feng8777 - 2007/11/20 20:24:00
抗折强度Rf按下式计算：vÍc'¬§bbs.3c3t.comjU6Ë´#¼íRf =vÍc'¬§bbs.3c3t.comjU6Ë´#¼í vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
| vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
1.5FfLvÍc'¬§bbs.3c3t.comjU6Ë´#¼í vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
|
b3vÍc'¬§bbs.3c3t.comjU6Ë´#¼í vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
|
式中：Rf —抗折强度(Mpa)；vÍc'¬§bbs.3c3t.comjU6Ë´#¼íFf —折断时施加于棱柱体中部的荷载(N)；vÍc'¬§bbs.3c3t.comjU6Ë´#¼íL —支撑圆柱之间的距离(mm)；vÍc'¬§bbs.3c3t.comjU6Ë´#¼íb —棱柱体正方形截面的边长(mm)。vÍc'¬§bbs.3c3t.comjU6Ë´#¼ívÍc'¬§bbs.3c3t.comjU6Ë´#¼ívÍc'¬§bbs.3c3t.comjU6Ë´#¼í关于L和b是多少?vÍc'¬§bbs.3c3t.comjU6Ë´#¼ívÍc'¬§bbs.3c3t.comjU6Ë´#¼ívÍc'¬§bbs.3c3t.comjU6Ë´#¼í抗压强度Rc按下式计算vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
Rc =vÍc'¬§bbs.3c3t.comjU6Ë´#¼í vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
| FcvÍc'¬§bbs.3c3t.comjU6Ë´#¼í vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
|
AvÍc'¬§bbs.3c3t.comjU6Ë´#¼í vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
|
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
式中：Rc—抗压强度(Mpa)；vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
Fc—破坏时的最大荷载(N)；vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
A—受压部分面积(mm2)。vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
关于A是多少?vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
是2.5还是1.6?vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
雨清 - 2007/11/20 22:09:00
关于L和b是多少?L=100mm b=40mmvÍc'¬§bbs.3c3t.comjU6Ë´#¼í
关于A是多少?A=1600mm2vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
jntl - 2007/11/22 14:58:00
一般抗折直接读出来的，抗压经过换算的，面积是1600mm2vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
hbt1130 - 2008/6/12 9:59:00
:default6:vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
杨飞 - 2008/7/10 19:45:00
学习vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
liuyuanhua - 2010/12/20 22:24:00
一看就知道是新手，呵呵vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
jt19900928 - 2011/4/14 15:15:00
L=100mm b=40mmvÍc'¬§bbs.3c3t.comjU6Ë´#¼í
A=1600mm2 vÍc'¬§bbs.3c3t.comjU6Ë´#¼í
JTG E30-2007中《水泥胶砂强度试验》里公式下都有标注vÍc'¬§bbs.3c3t.comjU6Ë´#¼í