320 W. Maple St., Suite A
Upper Sandusky, OH 43351
Phone: 419-294-5609
Fax: 419-294-6963
E-Mail: san-con1@san-con.com
The jumpform method of silo construction utilizes reusable steel forms. Jumpforming is used for the pouring of silos, stacking tubes, support tubes, and chimneys up to 65' in diameter. Existing structures may also be repaired by installing a jumpformed interior liner or exterior jacket.
Jumpforming silos requires experience and expertise for optimal results.
First, the crew sets up the rig that supports the wall forms. The crew then places the outer wall forms, and positions the wall rebar and any embeds or blockouts that are required at that particular elevation. Next, the inner wall forms are placed and secured and the concrete for that course is placed in 4 foot sections
After the first course is poured, a second course of forms is placed on top. The above procedure is repeated as necessary. We normally carry three courses of forms on our 4'x4' system.
After the full compliment of forms are in place, no additional forms are required. To pour an additional course, the lowermost set of forms are raised, or jumped, to the top of the structure and the whole procedure of placing outside forms, wall rebar, concrete and inside forms is repeated until the required height is achieved.
The jumpform method of construction allows you more flexibility in scheduling the work, thereby minimizing overtime and eliminating multiple shifts. Per ton of storage, jumpforming is usually the cheaper option.
