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Rebar detailing is the discipline of preparing 'shop/placing' or 'fabrication' drawings or shop drawings of steel reinforcement for construction. Engineers prepare 'design drawings' that develop required strengths by applying rebar size, spacing, location, and lap of steel .
Rebar shape attributes include following features: • Automatic shape detection • Bar scheduling lengths • Bar coding methods (per drawing, member, layer or shape) • Bar revisions • Rebar shop calculations • Import/export of bar charts from various DGN files • Bar shape standards • Fabricator specific Bar shape standards
Rebar has been placed atop a temporary wooden formwork deck prior to pouring concrete. The large horizontal rebar "cages" will be encased within a beam, while several thick vertical rebar stubs will stick out of the pour to form the base of a future column. Concrete is a material that is very strong in compression, but relatively weak in tension.
Structural steel shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices, etc., are regulated by standards in most industrialized countries. Most structural steel shapes, such as Ɪ-beams , have high second moments of area , which means they are very stiff in respect to their cross-sectional area and ...
Reinforcing rebar is placed axially in the column to provide additional axial stiffness. Accounting for the additional stiffness of the steel, the nominal loading capacity P n for the column in terms of the maximum compressive stress of the concrete f c ' , the yield stress of the steel f y , the gross cross section area of the column A g , and ...
The rebar spacers are fixed before the concrete is poured and remain within the structure. The main categories of rebar spacers are: Linear Spacers (Section profiles, H-section profiles, or 3-dimensional shapes), Point Spacers (wheel spacers, various tower or chair-like shapes) Rebar spacers can be divided into three raw materials categories:
The rebar-based formative skeletal structure can also act as a core on which printable concrete is shotcreted in a new method developed at TU Braunschweig. [11] The rebar cages can also be installed inside printed concrete formworks in non-structural members, and the holes are filled with grout.
ASTM A992 is currently the most available steel type for structural wide-flange beams. The industry's technical institute describes the standard thus: "ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) is the preferred material specification for wide-flange shapes, having replaced ASTM A36 and A572 grade 50. There are a couple of noteworthy enhancements ...