Structural Steel Detailing Pt. 6

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Structural Steel Detailing Pt. 6
2011-12-28 12:54:40
Construction Structural Steel Detailing

From the glossary of Detailing For Steel Construction Second Edition
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  1. A small angle or similar piece fastened to an end purlin of a building to support the roof, which overhangs the gable end.
  2. The amount of increase in the actual length of a structural shape over the theoretical dimension indicated on the drawing or advance bill. Also, the amount of increase in the actual cross section dimensions from those published in ASTM A6, A500 or A53 (as summarized in the AISC Manual of Steel Construction).
  3. The Owner or the entity which is responsible to the Owner for the overall construction of the project, including its planning, quality and completion. This is usually the general contractor, the construction manager or similar authority at the site.
    Owner's designated representative for construction
  4. The Owner or the entity which is responsible to the Owner for the overall structural design of the project, including the Structural Steel frame. This is usually the Structural Engineer of Record.
    Owner's designated representative for design
  5. Equipment used for cutting steel by burning a narrow slot by means of an intense heat.
    Oxyacetylene flame or torch
  6. The intersection of the working lines of different members of a truss.
    Panel point
  7. A curve in which the coordinates vary as the squares of the abscissas, or conversely.
  8. The top point of a roof truss where the top chords meet.
  9. A concrete column footing.
  10. Logs or steel shapes driven into the ground to give greater support for the foundations of a structure.
  11. A solid steel cylinder used for connecting members of a truss.
  12. A reinforcing plate bolted or welded to a truss member to provide greater bearing on a pin.
    Pin plate
  13. The longitudinal distance between adjacent bolts in the main part of a member. Also, the ratio of the center height of a roof truss to the half-span.
  14. A drawing that represents the horizontal projection of a structure or part of a structure. Often less accurately used for any general drawing of a structure whether plan or elevation.
  15. Design drawings furnished by the party responsible for the design of the structure.
  16. To smooth to a planar surface.
  17. Rolled steel of flat, rectangular cross section with sheared or gas-cut edge.
  18. Tools made to operate with compressed air, as a chisel for removing projecting parts, a wrench for tightening bolts or a fluted reamer for enlarging holes.
    Pneumatic tools
  19. A comparatively short vertical, or near vertical, compression member. Also, a compression member less than 300 lbs. in weight per OSHA.
  20. A method of contract payment wherein payment is based upon the calculated weight of structural steel in pounds (or tons) multiplied by the contractual price per pound (or ton). This method of payment often is used when a design is incomplete or when additions and changes are expected.
    Pound price or Unit price
  21. An American Welding Society welded joint conforming to all ANSI/AWS Code and specification provisions for design, material and workmanship.
    Prequalified joint
  22. A line drawn at right angles to a dimension line to indicate the extent of the dimension.
    Projection line
  23. A phenomenon associated with bolted construction and tensile loads only, where either the connected fitting or the support deforms and, thereby, increases the tensile force in the bolt.
    Prying action
  24. To make a full-size hole with a single stroke, as distinguished from drilling or boring. Also, a punching machine.
  25. The person employed by the fabricator to buy the raw material.
  26. A horizontal longitudinal member that rests on the top chords of a roof truss or girder to support the roof.
  27. Welded joints (apart from prequalified joints) used by a fabricator. The joints meet the requirements of the AWS D1.1.
    Qualified joints
  28. A value, derived from the shape of a member, used in determining the resistance of the member or part of the member to buckling under compression of flexure.
    Radius of gyration
  29. An inclined member parallel to the roof slope used to support the purlins in place of a truss.
  30. A device for fastening a crane rail to the flange of a crane runway beam or firder
    Rail clamp
  31. Structural steel obtained by a fabricator from steel producers and steel distribution centers for fabrication
    Raw material
  32. The force on a beam, girder or truss imparted by the support to balance the loads.
  33. To enlarge a hole by means of a rotating fluted cutter.
  34. A combination of concrete and steel reinforcing bars.
    Reinforced concrete
  35. A plate used to reinforce a member.
    Rinforcing plate
  36. Load effect (force, moment, stress, or appropriate) acting on a structural element of connection determined by structural analysis from the factored loads.
    Required strength
  37. The stresses that remain in an unloaded member after it has been formed into a finished product. Examples of such stresses include, but are not limited to, those induced by cold bending, cooling after rolling, or welding
    Residual stress
  38. The capacity of a structure or component to resist the effects of loads. It is determined by computations using specified material strengths, dimensions and formulas derived from accepted principles of structural mechanics, or by field tests or laboratory tests of scaled models, allowing for modeling effects and differences between laboratory and field conditions. Resistance is a generic term that includes both strength and servicability limit states.
  39. In LRFD a factor that accounts for unavoidable deviations of the actual strength from nominal value and the manner and consequences of failure.
    Resistance factor
  40. The moment of the internal forces or stresses which resist the bending moment of a beam, girder or column.
    Resisting moment
  41. Structurally speaking, a beam which is restrained or "fixed" as a support. Also, in fire resistance applications, a beam that has thrust restaint against thermal expansion.
    Restrained beam
  42. The simplest single force which can replace a system of forces and have an equivalent effect.
    Resultant or Resultant force
  43. The change of stress from compression to tension or vice versa.
    Reversal of stress
  44. A longitudinal structural member along the ridge or peak of a roof.
    Ridge strut
  45. A member is so marked when another member marked "left" is to be made exactly opposite from the same drawing.
  46. A section at right angles to the principal axis.
    Right section
  47. A structure in which connections maintain the angular relationship between beam/girder and column members under load.
    Rigid frame
  48. A short cylindrical rod of steel with upset heads used to fasten together component parts of a steel structure. One head is formed before the rivet is placed in position, the other head later by a riveting machine. Currently, Replaced by the use of high-strength bolts.
  49. A rolled bar of steel with round or square cross section.
  50. A machine for planing or milling the end of a member for uniform bearing.
    Rotary planer