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minimum closed stirrups for torsion
from aci sec. 11.6.1 torsion can be neglected if tu is less than (phi)(f`c)^.5(acp^2/pcp).
say if my tu is less than the above value, but i still want to place closed stirrups because torsion is present, is there a minimal standard size that is acceptable to use?
thanks
check out our whitepaper library.
since additional torsional stirrups are not required in this case then using the minimum stirrups required for shear as closed stirrups would be adequate.
i concur with willisv, but with the following additional point: use closed ties, or stirrups with an added closing top bar, not just stirrups alone. this is required for torsion resisting ties.
regards,
chichuck

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2009-09-10, 02:07 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	minimum closed stirrups for torsion minimum closed stirrups for torsion from aci sec. 11.6.1 torsion can be neglected if tu is less than (phi)(f`c)^.5(acp^2/pcp). say if my tu is less than the above value, but i still want to place closed stirrups because torsion is present, is there a minimal standard size that is acceptable to use? thanks check out our whitepaper library. since additional torsional stirrups are not required in this case then using the minimum stirrups required for shear as closed stirrups would be adequate. i concur with willisv, but with the following additional point: use closed ties, or stirrups with an added closing top bar, not just stirrups alone. this is required for torsion resisting ties. regards, chichuck __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]