The form work construction evolved into a much more strategic and directed endeavor due to previous failures. In this image one can see the new form work. It is set around the rebar infrastructure with one face off. After the face (which is labeled with a circled letter that corresponds to the column letter) is installed, braces are applied (to get close to plumb) and heights are measured from the FFE (finish floor elevation) dry line. note: the dry line has been reestablished to account for the thickness of the form rather than the finish column. In doing so we know that all columns are level and generally plumb. When shimmed to the correct height the bottom is "pinned" with stakes and a variation of materials that land us on specific dimensions. Using a plumb bob the forms are plumbed in perpendicular directions and the braces are wired to stakes that have been set in the ground. We have also been checking diagonals in plan and elevation to make sure that all is square which has been the case being that we checked our dry lines time and again. A triple check has been measuring parallel dimensions at the base and tops of the columns. These forms have been successful and we have been getting three to four uses out of them in the overcast weather. When the wood sees much sun it warps and splits at a rapid pace. We butter them up with old cooking oil two times.
No comments:
Post a Comment