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horizontal deflection calculation of building frame
for a typical one bay one story building frame. there is a equation to calculate the lateral deflection (like story drift) of the frame. vh^3/(12eic)+vh^2*l/(12eig). in this equation, i can understand the first item. but could somebody explain the second item to me. i konw the second must come from the rotation of the joint and has something to do with the beam stiffness. is this formula from the stiffness marix (6x6) of a beam member?
thx.
check out our whitepaper library.
yes, that term is being derived from the moment at the joints and the stiffness of the girder. the terms listed are derived from the flexural parts of the stiffness matrix of the structure assuming axial and shear deformations are negligible.

2009-09-09, 04:59 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	horizontal deflection calculation of building frame horizontal deflection calculation of building frame for a typical one bay one story building frame. there is a equation to calculate the lateral deflection (like story drift) of the frame. vh^3/(12eic)+vh^2*l/(12eig). in this equation, i can understand the first item. but could somebody explain the second item to me. i konw the second must come from the rotation of the joint and has something to do with the beam stiffness. is this formula from the stiffness marix (6x6) of a beam member? thx. check out our whitepaper library. yes, that term is being derived from the moment at the joints and the stiffness of the girder. the terms listed are derived from the flexural parts of the stiffness matrix of the structure assuming axial and shear deformations are negligible. __________________ 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]