The main goal in this project was to study the behavior of Concrete-Filled Double-Skin Tube (CFDST) columns subjected to fire following earthquake scenarios. For this purpose, the behavior of CFDST ...

The main goal in this project was to study the behavior of Concrete-Filled Double-Skin Tube (CFDST) columns subjected to fire following earthquake scenarios. For this purpose, the behavior of CFDST ...

The Fab-Form Fast-Tube all-weather utility column form is designed for concrete applications and construction projects. This solution comes in 12- and 100-ft. rolls, as well as 8- to 16-in. diameters.

Another weird thing is the combination of concrete filled column, with a 40×40 square tube at the back. Yet another part that is quite bad is how the forces go from the lead screw to the frame.

Figure concrete volume by multiplying the height of the post and column in feet by the radius of the tube in feet squared times 3.14. Divide the total by 27 to get the cubic yardage you need to order.