b'YOUR TOOLKIT FOR BUILDING EXCELENCEFigure2:Thisnewfreestallbarnexperiencedapartialcollapsein February 2014 in Northern Wisconsin before the first dairy cow had even moved in. The design for this post-frame was not engineered.(see Figures 4 and 5 pg 16).The more commonframe structure has no merit to be compared to option is that they build a non-engineered post- a properly designed and constructed post-frame frame building; that is, they construct a post- building, which utilizes the technical advances frame building without havinga comprehensivemade over the past 30 years through efforts and structural analysis performed, and without suchinitiativessupportedbytheNationalFrame an analysis, no technical basis exists for the sizeBuilding Association (NFBA) and summarized and grade of framing members, nor for how theyinthePost-FrameBuildingDesignManual.are connected.In such a situation, the buildingToassessthesituationaftermanycollapses design capacity is essentially unknown.Its anoccurred in the winter of 2018-19, about 30 uneducated guess, or the flip of a coin, whetherprofessionals joined the Engineering Committee windorsnowwillcauseacollapse.Whenof the Wisconsin Frame Builders Association designed improperly or not designed at all, any(WFBA) in April 2019 for a meeting.The goal material efficiency gains associated with the post- was to seek consensus on actions that could frame building system are nullified because ofand should be taken on behalf of the industry the increased probability of structural failure. andfuturepost-framebuildingowners.Any such under-designed or non-engineered post- After a spirited day-long discussion, three main Figure 3: These pictures show typical farm operations found throughout the Midwestern US, with a dairy barn from the early 20th century (top) compared to an early 21st century dairy operation (bottom). Except for the electrical systems, the larger buildings are often exempt from structural building codes and inspections.continued on page: 16 FRAME BUILDER - APR2020 / 15'