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All, thank you for your answers. Kootk, In your post you mention that you can "certainly" drag the bar tension to adjacent area around the opening. From experience do you have approximate width that you would feel comfortable to engage the slab on either side of the opening. The opening size is...

Hi Everybody, I am working on a project where the slab was poured, but no additional bars were installed around an opening. Is there a theory that can allow you to take an effective width around/ each side of the opening and say that you can engage more of the adjacent slab bars to make up for...

Hi Everybody, I have uploaded a photo of the connection so you can see what I am talking about. Thank you again for your time.http://files.engineering.com/getfile.aspx?folder=1719db55-047f-4d8e-9749-9eeab8334886&file=P1240769.JPG

Thank you all. I will post some photos next week. The seat is made of horizontal plate on top and supported by two/ or one/two vertical rib(s) that are shaped like a triangle.

Hi Yaschief, Have you analysed the CI girder seats? How do you calculate the allowable stresses? Thank you for your time.

Hi TCSE, Did you analyse the seat to determine if it will hold up the new load? If you did how did you analyse it? Have you done any calcs, have you checked any allowable stresses? I would be interested to know since i have same situation to deal with. Thanks.

Hi Everybody, I am working on a building having cast iron columns supporting girders by means of triangular stiffened seats. Has anyone analysed such seats? Is there any literature with examples of how to go about checking the capacities of such supports? Thank you for your time.

Thank you guys. So would that be a mistake if the column above is made weightless (still accounting for stiffness) and is full height and is only restrained in Rx and Ry ( rotation) directions. Bottom column is fully fixed. Do I have to always fix the columns or pin them at the top for the top...

Hi Everybody, What would be the appropriate restrain for the top of the column above slab when using SAFE? and Why? Why is that the column below the slab is always fixed at the bottom, but we are not fixing the top of the column above slab. Some of my colleagues only restrain the column in Rx...