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Erection
Brace Rods - 14044_255

Builder 3&2 Volume 02 - Construction manual for building structures
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structure.  Never  omit  any  part  called  for  on  the detailed  erection  drawings.  Each  of  the  members, parts, and accessories is labeled by stencil; it is not necessary to guess which part goes where. Refer to the erection plans and find the particular members you need as you work. High-strength steel bolts are used at rigid-frame connections:  roof-beam  splice  and  roof  beam  to column.  These  high-strength  bolts  are  identified  by  a Y stamped into the head, as shown in figure 9-3. All high-strength steel bolts and nuts should be tightened to give at least the required minimum bolt tension values.  The  bolts  may  be  tightened  with  a  torque wrench,  an  impact  wrench,  or  an  open-end  wrench. When a PEB is not erected on a concrete slab, a floor  system  by  the  same  manufacturer  should  be  used. Read and follow the manufacturer’s instructions when you are installing the floor system. Layout After the floor system or concrete slab has been prepared, the next step is to uncrate and lay out the structural parts. Lay the parts out in the following manner: Parts making up the frame assembly should be laid out, ready for assembly and in position for raising. Girts, purlins, and base angles should be di- vided (equally) along each side of the founda- tion. End-wall parts should be divided equally be- tween the two ends. Figure  9-3.—High-strength  steel  bolt. All  miscellaneous  parts  should  be  centrally  lo- cated. Panels and other parts not used immediately should  be  placed  on  boards  and  protected  from the environment and jobsite debris. Lay out the column and roof beams for assem- bly, using crate lumber to block up the frames. Erect the center frame first. Use the minimum number  of  high-strength  bolts  to  bring  the frame members together. Install the remaining bobs to get the proper tightness. Exterior Assembly Use galvanized machine bolts to assemble the girt and purlin clips to the frame. Keep in mind that the end frames have girt and purlin clips on one side only. The center frame has girt and purlin clips on each side of the frame. The  cave  girts  should  be  attached  to  the  cave angles  with  5/16-inch  left-hand  nuts  and  shoulder bolts.  An  example  is  shown  in  figure  9-4.  You  will need two cave angles for each cave girt. In fastening these together, remember the short section of the cave angle is always fastened to the left side of the cave girt. The long section of the cave angle is fastened to the right side of the eave girt. Use  3/8-  by  1-inch  galvanized  machine  bolts  to attach the gable angle and doorjamb top clips to the bottom flange of the end frame roof beams. A-FRAME.— To erect the frame, place A-frame props in position—one 8-foot frame at each side of the building  and  a  10-foot  frame  in  the  center  of  the Figure  9-4.—Attaching  eave  angle  to  girt. 9-4







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