Sorry for the confusion, the pile is not embedded 12", 12" below grade is what I am assuming as the point in which the pile is continuous braced by the soil, see the sketch in the original post. So my Lb = pile projection + 12", for example for a 5' pile projection the effective length, KL, is...
@centondollar: I am checking the portion of pile that is out of the ground for LTB, from the top of pile to 12" below grade. The pile in the photo is very short, but it is normal for these W6 piles to stick a max of 5'-6' out of the ground. LTB does govern design some of the time using a KL =...
Thank you for your response. It is a solar tracker similar to the one pictured at the top of the linked article (Link), in the picture you can see that the holes in the pile are vertically slotted, but you may not be able to see in the photo that the holes in the pile cap are slotted...
The pile has vertical slotted holes and the pile cap has horizontal slotted holes and is bolted into each flange with two bolts in a vertical line. This would suggest that the pile head is free to translate and rotate but if a force couple that produces the negative moment is directly...
I am designing a steel embedded pile, I am in charge of the pile design given vendor supplied loading at the top of pile. The top of pile loading consists of a shear, axial, and negative moment, as shown in the attached sketch. Currently I am using the unbraced length of the pile to be 12" below...
