![]() ![]() The reason I do this is to ensure that the concrete is always cracked in the tensile area, even when the pseudo-permanent load generates tensile stresses less that the tensile limit. In this way you get some sort of control.Īnother thing I tend to do for these calculations is the set the max tensile strength in the material properties to zero. If you window round just two bars then the calculations will be carried out for the bar with the max tensile strain, with the other bar being used to determine the distance to adjacent bars. One thing to point out is that you can be specific which bars you want to check by windowing round the bars in the graphics display. In some cases there will be no cracking as the max tensile strength of the concrete has not been exceeded. Obviously there is going to be some difference as the concrete and steel strains will vary with each load case, as will the effective tensile area. I have looked at the calculations for atypical 800 diameter RC pile and have not experienced the same "wide variation" in the crack widths for a range of different load cases as you suggest. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |