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- 55-1.03C(1) General Reserved 55-1.03C(2) Continuous Members
- 55-1.03C(3) Bearings and Anchorages
- 55-1.03C(4)–55-1.03C(10) Reserved
- 56-1.01 GENERAL Section 56-1 includes general specifications for constructing overhead sign structures, standards, and poles. 56-1.02 MATERIALS
- 56-2.01B Definitions Reserved 56-2.01C Submittals
- 56-2.01C(3) Quality Control Program
- 56-2.01D(2)(a) General Reserved 56-2.01D(2)(b) Nondestructive Testing
- 56-2.01D(2)(b)(ii) Ultrasonic Testing
- 56-2.01D(2)(b)(iii) Radiographic Testing
- 56-2.01D(2)(c) Walkway Safety Railing
55-1.03 CONSTRUCTION55-1.03A GeneralField welding must comply with section 55-1.02E(7). Assemble parts into final positions without damage. Follow all matchmarks. Do not damage or distort members when hammering. Drifting done during assembly must not enlarge bolt holes or distort the metal.
55-1.03B FalseworkFalsework must comply with section 48-2 except that dead loads consist of the weight of the structural steel and portions of the structure supported by the falsework. Construct falsework and concrete forms on steel structures such that loads applied to girder webs (1) are applied within 6 inches of a flange or stiffener and (2) do not produce local distortion of the web. Provide temporary struts and ties to (1) resist lateral loads applied to girder flanges and (2) prevent appreciable vertical movement between the edge of deck form and the adjacent steel girder. 55-1.03C Erection55-1.03C(1) GeneralReserved 55-1.03C(2) Continuous MembersUnless otherwise shown, structural steel girders are designed for continuity in supporting girder dead load. If erection procedures provide girder continuity for dead load, preassemble members with field joints in a no-load condition in a horizontal or an upright condition. You may erect structural steel girders such that dead-load girder continuity is not provided. If erection procedures do not provide girder continuity for dead load: 1. You may increase cross-sectional areas or change grades of steel to provide the specified capacity if authorized. 2. The erected structure must have a load-carrying capacity at least equal to the structure shown. 55-1.03C(3) Bearings and AnchoragesSet bearing assemblies level. The Engineer provides adjustments to horizontal positions of bearing assemblies due to temperature. Attain full bearing on the concrete under bearing assemblies. Immediately before setting bearing assemblies or masonry plates on ground concrete surfaces, thoroughly clean and apply caulking to all contact surfaces. During welding, protect bearings and bearing surfaces using authorized methods. The embedded end of each anchor bolt must terminate with a head or a nut and washer. Anchor bolts must allow true positioning of bearing assemblies. Mortar placed (1) under masonry plates or bearing assemblies or (2) in anchor bolt sleeves or canisters must comply with section 51-1.02F except the cement to sand ratio must be 1 to 3. Mortaring and constructing mortar pads under masonry plates must be done after girder erection and before placing deck concrete. If anchor bolts are installed in pipe sleeves or metal canisters, fill the pipes or canisters completely with mortar. 55-1.03C(4)–55-1.03C(10) Reserved55-1.04 PAYMENTThe payment quantity for structural steel is the weight determined from the dimensions shown using the following rules and assumptions: 1. Density of structural and cast steel is 0.2833 lb/cu in. The density of cast iron is 0.26 lb/cu in. 2. Weight of rolled shapes and structural plate is computed using nominal weight and dimensions with no deduction for copes, cuts, and holes. 3. Weight of fillet welds is as shown in the following table:
4. Weight of galvanizing is added to the calculated base metal weight using the table of weights of zinc coatings in ASTM A153/A153M. 5. Weight of bolts, nuts, and washers is added to obtain the weight of completed members. The weight of oversize bolts and nuts is not included. 6. Weight of nuts, bolts, washers, cap screws, anchor bolts, and anchor pipe sleeves in the finished structure is based on nominal weight and dimensions. 7. Weight of paint is not included.
56-1 GENERAL 56-1.01 GENERALSection 56-1 includes general specifications for constructing overhead sign structures, standards, and poles. 56-1.02 MATERIALSReserved 56-1.03 CONSTRUCTIONWelding of steel members must comply with AWS D1.1. Dispose of surplus excavated material. Backfill under section 19-3.
56-1.04 PAYMENTNot Used 56-2 OVERHEAD SIGN STRUCTURES 56-2.01 GENERAL56-2.01A SummarySection 56-2 includes specifications for constructing overhead sign structures. Furnishing sign structures includes furnishing anchor bolt assemblies, removable sign panel frames, sign structure hardware, and fabricated sign structures at the job site, ready for installation, including welding and painting or galvanizing as required. Installing sign structures includes installing anchor bolt assemblies, removable sign panel frames, and sign panels, and performing any welding and painting or galvanizing required during installation. Types of overhead sign structures include: 1. Truss 2. Bridge mounted 3. Tubular
56-2.01B DefinitionsReserved 56-2.01C Submittals56-2.01C(1) GeneralAllow 30 days for the Department's review. 56-2.01C(2) Shop DrawingsSubmit 2 copies of shop drawings for sign structures. Include: 1. Sign panel dimensions 2. Span lengths 3. Post heights 4. Anchorage layouts 5. Proposed splice locations 6. Snugging and tensioning pattern for anchor bolts and HS bolted connections 7. Details for permanent steel anchor bolt templates 8. Details of clips, eyes, or removable devices for preventing damage to the finished galvanized or painted surfaces used for: 8.1 Securing the sign during shipping 8.2 Lifting and moving during erection
Submit the QC program with the shop drawing submittal. 56-2.01D Quality Assurance56-2.01D(1) GeneralReserved 56-2.01D(2) Quality Control56-2.01D(2)(a) GeneralReserved 56-2.01D(2)(b) Nondestructive Testing56-2.01D(2)(b)(i) GeneralPerform NDT of steel members under AWS D1.1 and the requirements shown in the following table:
56-2.01D(2)(b)(ii) Ultrasonic TestingFor UT of welded joints with any members less than 5/16 inch thick or tubular sections less than 13 inches in diameter, the acceptance and repair criteria must comply with Clause 6.13.3.1 of AWS D1.1. For UT of other welded joints, the acceptance and repair criteria must comply with Table 6.3 of AWS D1.1 for cyclically loaded nontubular connections. When performing UT, use an authorized procedure under AWS D1.1, Annex S.
56-2.01D(2)(b)(iv) Longitudinal Seam WeldsThe Engineer selects the random locations for NDT. Grind the cover pass smooth at the locations to be tested. If repairs are required in a portion of a tested weld, perform NDT on the repaired portion and on 25 percent of the untested portions of the weld. If more repairs are required, perform NDT on the entire weld.
56-2.01D(3) Department AcceptanceThe Department inspects structural materials for sign structures at the fabrication site. You must: 1. Notify the Engineer when the materials are delivered to the fabrication site 2. Allow at least 10 days after delivery of the material for inspection before starting fabrication
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