"centerpunch" - 1 õppematerjal

Kuidas muudab mudelprojekteerimine teraskonstruktsioonide valmistamist ja ehitamist

Prior to bidding the project, LPR provided a preliminary “Structural Steel Alignment Plan” to the fabricator, which required incorporation of XYZ survey coordinates into the Tekla model. All the primary columns (sloping and vertical) were detailed and fabricated with shop drilled “alignment control holes” designed to hold a surveyors prism at a theoretical point in space (Figure 19). In addition, a second survey location was fabricated into the member utilizing a centerpunch mark to locate and install a reflective tape target (Figure 20) on the surface of the column. Total Station surveying instruments were programmed with this information. Figure 19. Total Station Surveying Target in the Field (left). Figure 20. Modeled Targets on a Wide Flange Column (Curtis Mayes, personal communication, May 10, 2010). The project routinely had very large skewed gusset plates that were shop fitup and shop welded