Quantcast Chapter 10 Construction Drawings

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CHAPTER CONSTRUCTION 10 DRAWINGS The  construction  of  any  structure  or  facility is  described  by  a  set  of  related  drawings  that  give the   SEABEEs   a   complete   sequential   graphic description  of  each  phase  of  the  construction process.  In  most  cases,  a  set  of  drawings shows  the  location  of  the  project,  boundaries, contours,   and   outstanding   physical   features of   the   construction   site   and   its   adjoining areas. Succeeding drawings give further graphic and   printed   instructions   for   each   phase   of construction. TYPES OF CONSTRUCTION DRAWINGS Generally,  construction  drawings  are  cate- gorized  according  to  their  intended  purpose.  Some of the types commonly used in military construc- tion are discussed in this chapter. PRESENTATION   DRAWINGS The   purpose   of   the   PRESENTATION DRAWINGS is to present the proposed building or facility in an attractive setting in its natural surrounding  at  the  proposed  site.  They  often consist of perspective views complete with colors and  shading.  Since  presentation  drawings  are actually used to “sell” an idea or design concept, an EA assigned to the drafting section is rarely required  to  develop  them. SHOP  DRAWINGS SHOP DRAWINGS are drawings, schedules, diagrams, and other related data to illustrate a material,   a   product,   or   a   system   for   some portion of the work prepared by the construction contractor,  subcontractor,  manufacturer,  dis- tributor,   or   supplier.    Product   data   include brochures, illustrations,  performance  charts, and other information by which the work will be judged.  As  an  EA,  you  will  be  required  to  draft shop drawings for minor shop and field projects. You   may   draw   shop   items,   such   as   doors, cabinets,   and   small   portable   structures   (pre- fabricated  berthing  quarters,  and  modifications of  existing  buildings),  or  perhaps  you  may  be drawing   from   portions   of   design   drawings, specifications,  or  from  freehand  sketches  given by the design engineer. MASTER  PLAN  DRAWINGS MASTER  PLAN  DRAWINGS  are  commonly used   in   the   architectural,   topographical,   and construction fields. They show sufficient features to be used as guides in long-range area develop- ment.   They   usually   contain   section   boundary lines,   horizontal   and   vertical   control   data, acreage,  locations  and  descriptions  of  existing and  proposed  structures,  existing  and  proposed surfaced  and  unsurfaced  roads  and  sidewalks, streams, rights-of-way and appurtenances, existing utilities,  north  point  indicator  (arrow),  contour lines,   and   profiles.   Master   plan   and   general development drawings on existing and proposed Navy  installations  are  maintained  and  constantly upgraded  by  the  resident  officer  in  charge  of construction  (ROICC)  and  by  the  public  works department   (PWD). WORKING   DRAWINGS A WORKING DRAWING (also called project drawing) is any drawing that furnishes the infor- mation  required  by  the  craftsmen  to  manufacture a  machine  part  or  by  a  builder  crew  to  erect  a structure; it is prepared from a freehand sketch or  a  design  drawing.  Complete  information  is presented in a set of working drawings, complete enough  that  the  user  will  require  no  further information.   Project   drawings   include   all   the drawings  necessary  for  the  different  SEABEE ratings  to  complete  the  project.  These  are  the drawings that show the size, quantity, location, and  relationship  of  the  building  components. 10-1



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