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Base Plate for Moment Frame-Shear Transfer

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Dear Sir,
The most common method to transfer shear force from base plate to footing is to weld
an L profile ( shear key ) under the base plate and to form a rectangular cavity on the R.C. footing to enable the leg of the L profile go in it. The dimension of the cavity should big enough to provide adequate bond between steel plate and grout to be applied. Without using a shear key, it would be difficult to cope with this problem. You may need large diameter bolts as it will subject to both tension and shear known as combined load.

Bülent Deveci S.E.
TEM Consulting Engineers

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