effect of web plate
effect of web plate
(OP)
Assuming i have steel beam,and a stiffener plate along the length spaced @ 300mm on centers. Can i use the 300mm spacing of stiffener plate as the un supported length of the compression flange?
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RE: effect of web plate
RE: effect of web plate
RE: effect of web plate
RE: effect of web plate
Stiffener plates (or transverse stiffeners) are used to increase shear capacity by allowing development of a "web tension field" in thin webbed sections. They resist local shear buckling which is buckling out of the plane of the web.
The unsupported length of the compression flange is a failure type related to bending known as lateral torsional buckling. If you Google some pictures of LTB failures you will see that the web is not buckled; the local cross section is intact. The failure is an overall buckling type so the web stiffeners will do nothing against this.
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RE: effect of web plate
RE: effect of web plate