For pole type hay storage structures, the option of knee bracing may not be a good alternative if the knee braces interfere with the clearance needed for bale wagon operation. Otherwise, the most critical design of an effective knee brace system is to provide the substantial fastening needed to take the high forces imposed on the brace connections. Over-sizing of poles is another method of providing walls with adequate wind resistance. External braces, though not as neat and tidy, are very effective at wind resistance. Where building length is up to twice the width, and both ends either closed or rigidly braced with a structural wall or external brace, the roof can be built as a structural diaphragm for adequate wind resistance, as explained earlier.
All systems require extra strong steel strap connections of trusses to the support beams.
Structures A variety of commercially manufactured arch, pole and rigid frame structures make excellent and economical hay storages. Owners should assure that the building considered meets appropriate wind and snow loading for the locality, and that site and base preparation is specified for the storage of hay. Round-roofed structures have special unbalanced snow loading requirements, defined in the building codes. The user of this information agrees to the terms and conditions in the copyright and disclaimer . Her Majesty the Queen in the Right of Alberta.