ClarksonEng
Structural
A legacy practice of my engineering group has been to cut a hole in our base plate and embed an 8x8x1/4 HSS column 5/8" into the plate. The new manager wants detailed calculations on each structure, including base plate design. It is my understanding that the individual that detailed our base plates went with this design due to the moment on the structure. Unfortunately, this is a unique design and I cannot find any similar calculations to analyze this plate. The TIA, AISC, and ASCE 113 don't answer this question. To continue with my analysis of the base plate, how do I determine if this plate is adequate? The plate is A36 and column is A500 grade B, design loads are as follows:
Bearing Case: Shear = 4kips Axial = 9 kips Moment = 55kip*ft
Uplift Case: Shear = 5kips Uplift = 6kips Moment = 49kip*ft
Any direction would be appreciated. Also, Section 2-2 isn't shown correctly. The hole is completely through the base plate and the column is being held entirely by the 5/16 weld on top and 3/16 weld on the bottom.
Bearing Case: Shear = 4kips Axial = 9 kips Moment = 55kip*ft
Uplift Case: Shear = 5kips Uplift = 6kips Moment = 49kip*ft
Any direction would be appreciated. Also, Section 2-2 isn't shown correctly. The hole is completely through the base plate and the column is being held entirely by the 5/16 weld on top and 3/16 weld on the bottom.