A.07.24_AMD_0002_JBC_VQ_AMD2_SPECS.pdf

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Construct Visiting Quarters Federal contract opportunity
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W912HP-17-R-0020
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Department of the Army Corps of Engineers Engineering District Charleston

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Amendment 0002

Visiting Quarters PROJECT TABLE OF CONTENTS Charleston AFB, S. Carolina TOC - 1

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 14 00 WORK RESTRICTIONS

01 30 00 ADMINISTRATIVE REQUIREMENTS

01 32 01.00 10 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 33 29 LEED(TM) DOCUMENTATION

01 35 26 GOVERNMENT SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.00 10 QUALITY CONTROL

01 45 00.10 10 QUALITY CONTROL SYSTEM (QCS)

01 45 35 SPECIAL INSPECTION FOR SEISMIC-RESISTING SYSTEMS

01 45 37 SPECIAL INSPECTION FOR PROGRESSIVE COLLAPSE RESISTING SYSTEMS

01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

01 50 10 ENVIRONMENTAL (JBC)

01 54 00 GREEN PROCUREMENT (JBC)

01 56 39 TEMPORARY TREE AND PLANT PROTECTION

01 57 20 WASTE MANAGEMENT (JBC)

01 57 23 TEMPORARY STORM WATER POLLUTION CONTROL

01 57 50 TEMPORARY ENVIRONMENTAL CONTROLS (JBC)

01 58 00 PROJECT IDENTIFICATION

01 78 00 CLOSEOUT SUBMITTALS

01 78 23 OPERATION AND MAINTENANCE DATA

01 81 19 CONSTRUCTION INDOOR AIR QUALITY (IAQ) MANAGEMENT

DIVISION 02 - EXISTING DONDITIONS

02 41 00 DEMOLITION AND DECONSTRUCTION

02 82 14.00 10 ASBESTOS HAZARD CONTROL ACTIVITIES

02 82 33.13 20 REMOVAL-CONTROL AND DISPOSAL OF PAINT WITH LEAD

DIVISION 03 - CONCRETE

03 11 18 UNDERSLAB VAPOR BARRIER

03 30 00 CAST-IN-PLACE CONCRETE

03 36 10 POLYMER MODIFIED CEMENTIITOUS SKIMCOATING OF ABRADED CONCRETE

03 36 20 CONCRETE STAINING AND SEALING

03 45 00 PRECAST ARCHITECTURAL CONCRETE

03 60 00 GROUTING

DIVISION 04 - MASONRY

04 21 13 BRICK MASONRY

04 22 00 CONCRETE UNIT MASONRY

04 72 20 PRECAST CONCRETE STONE MASONRY TRIM

DIVISION 05 - METALS

05 12 00 STRUCTURAL STEEL FRAMING

05 31 00 STEEL DECKING

05 40 00 COLD-FORMED METAL FRAMING

Charleston AFB, S. Carolina TOC - 2

05 44 00 COLD-FORMED METAL TRUSSES

05 50 00 METAL FABRICATIONS

05 51 00 METAL STAIRS

05 51 20 TRASH ENCLOSURE GATES

05 52 12 STEEL PIPE AND TUBE RAILINGS

05 73 00 DECORATIVE METAL RAILINGS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 53 MISCELLANEOUS ROUGH CARPENTRY

06 16 00 SHEATHING

06 20 24 INTERIOR FINISH CARPENTRY

06 22 22 EXTERIOR ARCHITECTURAL FIBER CEMENT TRIM

06 41 12 WOOD-VENEER AND PLASTIC LAMINATE FACED ARCHITECTURAL CABINETS

06 61 16 SOLID SURFACE FABRICATIONS

06 64 00 PLASTIC PANELING

06 74 13 FIBERGLASS REINFORCED GRATINGS

DIVISION 07 - THERMAL & MOISTURE PROTECTION

07 11 50 SELF ADHERED HIGH PERFORMANCE UNDERLAYMENT (SAHP)

07 19 00 WATER REPELLENTS

07 21 00 THERMAL INSULATION

07 24 19 WATER-DRAINAGE EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)

07 27 29 AIR-BARRIER COATINGS

07 42 14 EXTERIOR STONE FACED ALUMINUM HONEYCOMB PANELS

07 54 23 THERMOPLASTIC POLYOLEFIN (TPO) ROOFING

07 61 20 STRUCTURAL STANDING SEAM METAL ROOF

07 62 00 SHEET METAL FLASHING AND TRIM

07 71 00 ROOF SPECIALTIES

07 71 27 BELLOWS TYPE ROOF EXPANSION JOINTS

07 72 00 ROOF ACCESSORIES

07 72 23 BOXED CORNER LOUVER PENTHOUSES

07 84 13 PENETRATION FIRESTOPPING

07 84 46 FIRE-RESISTIVE JOINT SYSTEMS

07 92 00 JOINT SEALANTS

07 95 01 EXPANSION CONTROL JOINTS

DIVISION 08 - OPENINGS

08 11 13 HOLLOW METAL DOORS AND FRAMES

08 14 16 FLUSH WOOD DOORS

08 31 13 ACCESS DOORS AND FRAMES

08 32 14 SLIDING ALUMINUM-FRAMED GLASS DOORS

08 34 73 SOUND CONTROL DOOR ASSEMBLIES

08 38 23 FOOD SERVICE TRAFFIC DOORS

08 41 13 ALUMINUM FRAMED ENTRANCES AND STOREFRONTS

08 42 29 SLIDING AUTOMATIC ALUMINUM ENTRANCES

08 51 13 ALUMINUM WINDOWS

08 71 00 DOOR HARDWARE

08 80 00 GLAZING

08 83 08 SILVERED MIRRORS

08 91 18 FIXED LOUVERS

08 95 17 ALUMINUM LAUNDRY WALL VENT CAPS

Charleston AFB, S. Carolina TOC - 3

DIVISION 09 - FINISHES

09 21 16 GYPSUM BOARD SHAFT WALL SYSTEMS

09 22 17 NON LOAD BEARING METAL FRAMING

09 22 26 CONVENTIONAL AND WALL-TO-WALL DRYWALL AND PLASTER SUSPENSION

SYSTEMS

09 24 00 PORTLAND CEMENT PLASTERING

09 29 00 GYPSUM BOARD

09 30 00 TILING

09 30 33 STONE TILING

09 51 23 ACOUSTICAL TILE CEILINGS

09 65 13 RESILIENT BASE AND ACCESSORIES

09 65 16 RECYCLED RUBBER COMPOSITE SHEET ATHLETIC FLOORING

09 68 13 TILE CARPETING

09 68 16 SHEET CARPETING

09 75 10 SOLID SURFACING WALL CLADDING

09 75 16 STONE BASE

09 91 13 EXTERIOR PAINTING

09 91 23 INTERIOR PAINTING

09 93 00 STAINING AND TRANSPARENT FINISHING

DIVISION 10 - SPECIALTIES

10 14 25 SIGNAGE

10 21 13 SOLID POLYMER TOILET COMPARTMENTS

10 22 13 WIRE MESH PARTITIONS

10 22 39 MANUALLY OPERABLE ACOUSTICAL PANEL PARTITIONS

10 26 00 WALL SURFACE PROTECTION

10 28 00 TOILET, BATH, AND LAUNDRY ACCESSORIES

10 44 13 FIRE EXTINGUISHER CABINETS

10 51 13 METAL LOCKERS

DIVISION 11 - EQUIPMENT

11 05 13 COMMON MOTOR REQUIREMENTS FOR EQUIPMENT

11 40 20 FOODSERVICE EQUIPMENT

11 52 13 PROJECTION SCREENS

DIVISION 12 - FURNISHINGS

12 36 41 NATURAL STONE SLAB COUNTERTOPS

12 36 62 SIMULATED STONE (SOLID SURFACING) COUNTERTOPS

12 48 12 ROLLUP RAIL MATS WITH BRISTLE FILAMENT

12 93 20 BICYCLE RACKS

DIVISION 14 - CONVEYING SYSTEMS

14 24 00 HYDRAULIC ELEVATORS

14 91 20 LAUNDRY FACILITY CHUTES

DIVISION 21 - FIRE SUPPRESSION

21 12 00 STANDPIPE SYSTEMS

21 13 13.00 10 WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION

21 30 00 FIRE PUMPS

Charleston AFB, S. Carolina TOC - 4

DIVISION 22 - PLUMBING

22 05 13 COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

22 05 16 EXPANSION FITTINGS AND LOOPS FOR PLUMBING PIPING

22 05 17 SLEEVES AND SLEEVE SEALS FOR PLUMBING PIPING

22 05 18 ESCUTCHEONS FOR PLUMBING PIPING

22 05 19 METERS AND GAGES FOR PLUMBING PIPING

22 05 23 GENERAL-DUTY VALVES FOR PLUMBING PIPING

22 05 29 HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

22 05 48 VIBRATION AND SEISMIC CONTROLS FOR PLUMBING PIPING AND EQUIPMENT

22 05 53 IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

22 07 16 PLUMBING EQUIPMENT INSULATION

22 07 19 PLUMBING PIPING INSULATION

22 11 16 DOMESTIC WATER PIPING

22 11 19 DOMESTIC WATER PIPING SPECIALTIES

22 11 23 DOMESTIC WATER PUMPS

22 11 23.13 DOMESTIC-WATER PACKAGED BOOSTER PUMPS

22 12 23 FACILITY INDOOR POTABLE-WATER STORAGE TANKS

22 13 16 SANITARY WASTE AND VENT PIPING

22 13 19 SANITARY WASTE PIPING SPECIALTIES

22 14 13 FACILITY STORM DRAINAGE PIPING

22 14 23 STORM DRAINAGE PIPING SPECIALTIES

22 14 29 SUMP PUMPS

22 33 00 ELECTRIC, DOMESTIC-WATER HEATERS

22 34 00 PACKAGED DOMESTIC HOT WATER SYSTEM

22 35 00 DOMESTIC-WATER HEAT EXCHANGERS

22 41 00 RESIDENTIAL PLUMBING FIXTURES

22 45 00 EMERGENCY PLUMBING FIXTURES

DIVISION 23 - HEATING, VENTILATING AND AIR CONDITIONING

23 05 13 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

23 05 16 EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

23 05 17 SLEEVES AND SLEEVE SEALS FOR HVAC PIPING

23 05 18 ESCUTCHEONS FOR HVAC PIPING

23 05 19 METERS AND GAGES FOR HVAC PIPING

23 05 23 GENERAL-DUTY VALVES FOR HVAC PIPING

23 05 29 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

23 05 33 HEAT TRACING FOR HVAC PIPING

23 05 48 VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND EQUIPMENT

23 05 53 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 HVAC INSULATION

23 08 00 COMMISSIONING OF HVAC SYSTEMS

23 09 20 HVAC CONTROL SYSTEM

23 11 23 FACILITY NATURAL-GAS PIPING

23 21 13 HYDRONIC PIPING

23 21 13.13 UNDERGROUND HYDRONIC PIPING

23 21 16 HYDRONIC PIPING SPECIALTIES

23 21 23 HYDRONIC PUMPS

23 25 00 HVAC WATER TREATMENT

23 31 13 METAL DUCTS

23 33 00 AIR DUCT ACCESSORIES

23 34 23 HVAC POWER VENTILATORS

23 37 13 DIFFUSERS, REGISTERS, AND GRILLES

Charleston AFB, S. Carolina TOC - 5

23 51 00 BREECHINGS, CHIMNEYS, AND STACKS

23 64 26 ROTARY-SCREW WATER CHILLERS

23 72 00 AIR-TO-AIR ENERGY RECOVERY EQUIPMENT

23 82 19 FAN COIL UNITS

DIVISION 26 - ELECTRICAL

26 05 13 MEDIUM-VOLTAGE CABLES

26 05 19 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

26 05 26 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

26 05 29 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

26 05 33 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

26 05 48 VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS

26 05 53 IDENTIFICATION FOR ELECTRICAL SYSTEMS

26 13 00 MEDIUM-VOLTAGE SWITCHGEAR

26 22 00 LOW-VOLTAGE TRANSFORMERS

26 23 00 LOW-VOLTAGE SWITCHGEAR

26 24 16 PANELBOARDS

26 27 26 WIRING DEVICES

26 28 13 FUSES

26 28 16 ENCLOSED SWITCHES AND CIRCUIT BREAKERS

26 29 23 VARIABLE-FREQUENCY MOTOR CONTROLLERS

26 51 00 INTERIOR LIGHTING

26 56 00 EXTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 11 00 COMMUNICATIONS EQUIPMENT ROOM FITTINGS

27 15 00 COMMUNICATIONS HORIZONTAL CABLING

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 13 31 TWO WIRED DOOR CHIMES

28 13 33 DOORBELL AND PHONE SIGNALERS FOR THE HEARING IMPAIRED

28 31 76 INTERIOR FIRE ALARM AND MASS NOTIFICATION SYSTEM

DIVISION 31 - EARTHWORK

31 10 00 SITE CLEARING

31 20 00 EARTH MOVING

31 31 16 SOIL TREATMENT FOR SUBTERRANEAN TERMITE CONTROL

31 50 00 EXCAVATION SUPPORT AND PROTECTION

31 62 13 CONCRETE PILES

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 12 16 ASPHALT PAVING

32 13 13 CONCRETE PAVING

32 13 73 CONCRETE PAVING JOINT SEALANTS

32 14 43 CONCRETE GRID PAVEMENTS

(REV#2)32 17 13 PARKING BUMPERS (/REV#2)

32 17 23 PAVEMENT MARKINGS

32 92 00 TURF AND GRASSES

32 93 00 PLANTS

Charleston AFB, S. Carolina TOC - 6

DIVISION 32 - UTILITIES

33 05 00 COMMON WORK RESULTS FOR UTILITIES

33 11 00 WATER DISTRIBUTION

33 30 00 SANITARY SEWERS

33 41 00 STORM UTILITY DRAINAGE PIPING

33 70 02 ELECTRICAL DISTRIBUTION SYSTEM, UNDERGROUND

APPENDICES

Appendix 1 - SUBMITTAL REGISTER

Appendix 2 - GEOTECHNICAL ENGINEERING REPORT: APF Companion

Appendix 3 - LIMITED ASBESTOS AND LEAD PAINT SURVEY REPORT: JBC Building 362

Appendix 4 - GEOTECHNICAL ENGINEERING REPORT: NEW VISITORS QUARTERS (VQ)

Appendix 5 – ASBESTOS, LEAD PAINT AND VISUAL HAZARDOUS MATERIALS SURVEY REPORT

Appendix 6 – EXISTING POOL DRAWINGS (FOR INFORMATION ONLY)

Appendix 7 – RICKENBACKERs SLAT WALL INFORMATION

-- End of Project Table of Contents

Visiting Quarters SPECIAL INSPECTION FOR SEISMIC-RESISTING SYSTEMS Charleston AFB, S. Carolina 01 45 35 - 1

SECTION 01 45 35

SPECIAL INSPECTION FOR SEISMIC-RESISTING SYSTEMS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)

ACI 318 (2008) Building Code Requirements for Structural

Concrete and Commentary

ACI 530/530.1 (2008) Building Code Requirements and Specification for Masonry Structures and Related Commentaries

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

ANSI/AISC 341 (2005) Seismic Provisions for Structural Steel Buildings

ANSI/AISC 360 (2010) Specification for Structural Steel Buildings

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7 (2005) Minimum Design Loads for Buildings and Other

Structures

ASTM INTERNATIONAL (ASTM)

ASTM A435/A435M (R 2007) Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates

ASTM A615/A615M (2009b) Standard Specification for Deformed and Plain

Carbon-Steel Bars for Concrete Reinforcement

ASTM A898/A898M (2007) Standard Specification for Straight Beam Ultrasonic Examination of Rolled Steel Structural Shapes

1.2 SYSTEM DESCRIPTION

Perform the Special Inspection for seismic-resisting system components as specified. Special Inspector personnel shall be in addition to the quality control inspections and inspectors required elsewhere in this section.

1.2.1 Continuous Special Inspection

Continuous special inspection is the full time observation of the work by the Special Inspector present in the work area whenever work is being performed. Perform continuous special inspection where specified for items as shown on the drawings.

Charleston AFB, S. Carolina 01 45 35 - 2

1.2.2 Periodic Special Inspection

Periodic special inspection is the intermittent observation of the work by a Special Inspector present in the work area while work is being performed. The intermittent observation periods shall be: at times of significant work; recurrent over the complete work period; and total at least 25 percent of the total work time. Perform periodic special inspection where specified for items as shown on the drawings.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-07 Certificates

Special Inspector; G

Certification attesting that the Special Inspector is qualified by knowledge and experience to perform the specified Special Inspections. Information, which provides evidence of the knowledge and experience necessary to qualify a person as a Special Inspector for the category of work being certified, will accompany the qualification.

Quality Control Plan; G

1.4 QUALITY CONTROL PLAN

Develop a quality control plan containing the following. Include a certificate indicating that the plan meets the content specified in this section with plan submittal.

a. A list of all items that require quality control Special Inspection and testing, including the type, frequency, extent, and duration of the special inspection for each item on this list.

b. A list of all items that require quality control testing, including the type and frequency of testing for each item on this list.

c. The content, distribution, and frequency of special inspection reports.

d. The content, distribution, and frequency of testing reports.

e. The procedures, controls, and people used within the Contractor's organization to develop, sign, and distribute Special Inspection and Testing reports along with the position title and pertinent qualifications of all Contractor personnel involved.

1.5 SPECIAL INSPECTOR

Use a Special Inspector to perform Special Inspections required by this section. The Special Inspector is a person employed by the Contractor and approved by the Government as being qualified by knowledge and experience to perform the Special Inspection for the category of work being constructed. Special Inspectors perform their duties independent from the construction quality control staff employed by the Contractor. More than one Special Inspector may be required to provide the varied knowledge and experience necessary to adequately inspect all of the categories of work requiring Special Inspection.

Charleston AFB, S. Carolina 01 45 35 - 3

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.1 PERFORMANCE OF INSPECTIONS

Perform Special Inspections for the following where designated on the drawings:

3.1.1 Piles

a. Periodic special inspection during driving of piles.

3.1.2 Reinforcing Steel

a. Periodic special inspection during and upon completion of the placement of reinforcing steel in shear walls.

b. Continuous special inspection during the welding of reinforcing steel resisting flexural and axial forces in boundary members of concrete shear walls and during welding of shear reinforcement.

3.1.3 Structural Concrete

Periodic special inspection during and on completion of the placement of concrete in boundary members of shear walls.

3.1.4 Prestressed Concrete

Periodic special inspection during the placement and after completion of placement of prestressing steel. Continuous special inspection during all stressing and grouting operations and during the placement of concrete.

3.1.5 Structural Masonry

a. Periodic special inspection during the preparation of mortar, the laying of masonry units, and placement of reinforcement and prior to placement of grout.

b. Continuous special inspection during the welding of reinforcement, grouting, consolidation and reconsolidation and placement of bent-bar anchors.

3.1.6 Structural Steel

a. Continuous special inspection for all structural welding, except that periodic special inspection is permitted for single-pass or resistance welds provided the qualifications of the welder and the welding electrodes are inspected at the beginning of the work and all welds are inspected for compliance with the approved construction documents at the completion of welding.

3.1.7 Cold-Formed Steel Framing

a. Periodic special inspections during all welding operations of elements of the seismic-force-resisting system.

Charleston AFB, S. Carolina 01 45 35 - 4

b. Periodic special inspections for screw attachment, bolting, anchoring, and other fastening of components within the seismic-force-resisting system, including struts, braces, and hold-downs.

3.1.8 Architectural Components

Perform special inspection of the architectural components ensuring that the methods of anchoring and fastening indicated on the drawings are being complied with at the onset of construction of the components, and that the specified or shown number, spacing, and types of fasteners were actually installed. Special inspection for architectural components shall be as follows:

a. Periodic special inspection during the erection and fastening of exterior cladding, interior nonloadbearing partition walls, exterior nonloadbearing walls, and masonry veneer.

b. Periodic special inspection during the anchorage of access floors, suspended ceilings, and storage racks 8 feet or greater in height.

3.1.9 Mechanical and Electrical Components

Perform special inspection of the mechanical and electrical components ensuring that the methods of anchoring and fastening indicated on the drawings are being complied with at the onset of construction of the component, and that the specified or shown number, spacing, and types of fasteners were actually installed. Special inspection for mechanical and electrical components shall be as follows:

a. Periodic special inspection during the anchorage of electrical equipment for emergency or standby power systems.

b. Periodic special inspection during the installation of anchorage of all other electrical equipment.

c. Periodic special inspection during installation for flammable, combustible, or highly toxic piping systems and their associated mechanical units.

d. Periodic special inspection during the installation of HVAC ductwork that will contain hazardous materials.

3.1.11 Seismic Isolation System

Periodic special inspection during the fabrication and installation of isolator units.

3.1.12 Energy Dissipation System

Periodic special inspection during the fabrication and installation of energy dissipation devices.

3.2 TESTING

The special inspector shall be responsible for verifying that the testing requirements are performed by an approved testing agency for compliance with the following, where shown on the drawings:

a. Reinforcing and Prestressing Steel: Special testing of reinforcing and prestressing steel shall be as follows:

Charleston AFB, S. Carolina 01 45 35 - 5

(1) Examine certified mill test reports for each shipment of reinforcing steel used in reinforced concrete boundary members of reinforced concrete shear walls and reinforced masonry shear walls. The special inspector shall determine conformance with the construction documents.

(2) Examine the reports for chemical tests, done in accordance with Sec. 3.5.2 of

ACI 318, which were performed to determine the weldability of ASTM A615/A615M reinforcing steel.

b. Structural Concrete: Verify that samples of structural concrete obtained at the project site, along with all material components obtained at the batch plant, have been tested in accordance with the requirements of ACI 318 and comply with all acceptance provisions contained therein.

c. Structural Masonry: Verify that all quality control testing of structural masonry along with all material components is in accordance with the requirements of ACI 530/530.1 and complies with all acceptance provisions contained therein.

d. Structural Steel:

(1) Verify that all quality control testing needed to confirm required material properties contained in Section 05 12 00 STRUCTURAL STEEL and given in the quality control plan has been done in accordance with applicable provisions in ANSI/AISC 341 and ANSI/AISC 360 and that the test results comply with all acceptance provisions contained therein.

(2) When a flange or a plate of steel member with a base metal thickness greater than 1.5 inches, is joined by welding so that the flange or plate is subjected to through-thickness weld shrinkage strains, verify that the required ultrasonic testing for discontinuities behind and adjacent to such welds has been done after joint completion. Further verify that any material discontinuities rejected on the basis of the requirements contained in Section 05 12 00 STRUCTURAL STEEL were repaired and were retested after the repairs and found acceptable.

3.3 REPORTING AND COMPLIANCE PROCEDURES

a. On the first day of each month, furnish to the Government five copies of the combined progress reports of the special inspector's observations listing all special inspections of construction or reviews of testing performed during that month, noting all uncorrected deficiencies, and describing the corrections made both to these deficiencies and to previously reported deficiencies. Each monthly report shall be signed by all special inspectors who performed special inspections of construction or reviewed testing during that month, regardless of whether they reported any deficiencies . Each monthly report shall be signed by the Contractor.

b. At completion of construction, each special inspector shall prepare and sign a final report attesting that all work they inspected and all testing and test reports they reviewed were completed in accordance with the approved construction documents and that deficiencies identified were satisfactorily corrected. Submit a combined final report containing the signed final reports of all the special inspectors. Sign the combined final report attesting that all final reports of special inspectors that performed work to comply with these construction documents are contained therein, and that the Contractor has reviewed and approved all of the individual inspector's final reports.

-- End of Section --

Visiting Quarters METAL FABRICATIONS Charleston AFB, S. Carolina 05 50 00 - 1

SECTION 05 50 00

METAL FABRICATIONS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Steel framing and supports for operable partitions.

2. Steel framing and supports for overhead grilles.

3. Steel framing and supports for countertops.

4. Steel framing and supports for mechanical and electrical equipment.

5. Steel framing and supports for applications where framing and supports are not specified in other Sections.

6. Elevator machine beams, hoist beams, and divider beams.

7. Steel shapes for supporting elevator door sills.

8. Shelf angles.

9. Miscellaneous steel trim including steel angle corner guards and steel edgings

10. Metal bollards.

11. Abrasive metal nosings and thresholds.

12. Metal downspout boots.

13. Loose bearing and leveling plates for applications where they are not specified in other Sections.

B. Products furnished, but not installed, under this Section:

1. Loose steel lintels.

2. Anchor bolts, steel pipe sleeves, slotted-channel inserts, and wedge-type inserts indicated to be cast into concrete or built into unit masonry.

3. Steel weld plates and angles for casting into concrete for applications where they are not specified in other Sections.

C. Related Sections:

1. Section 013329 “LEED Documentation”

2. Section 015400 “Green Procurement”

Charleston AFB, S. Carolina 05 50 00 - 2

3. Section 015720 “Waste Management”

4. Section 033000 "Cast-in-Place Concrete" for installing anchor bolts, steel pipe sleeves, slotted-channel inserts, wedge-type inserts, and other items cast into concrete.

5. Section 042000 "Unit Masonry" for installing loose lintels, anchor bolts, and other items built into unit masonry.

6. Section 055100 "Metal Stairs."

7. Section 055213 "Pipe and Tube Railings."

8. Section 055300 "Metal Gratings."

9. Section 057300 "Decorative Metal Railings."

10. Section 102213 "Wire Mesh Partitions."

11. Section 129300 "Site Furnishings" for bicycle racks.

1.3 PERFORMANCE REQUIREMENTS

A. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on exterior metal fabrications by preventing buckling, opening of joints, overstressing of components, failure of connections, and other detrimental effects.

1. Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.

1.4 ACTION SUBMITTALS

A. Product Data: For the following:

1. Nonslip aggregates and nonslip-aggregate surface finishes.

2. Metal nosings.

3. Paint products.

4. Grout.

B. LEED Submittals:

1. Product Data for Credit MR 4: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content. Include statement indicating cost for each product having recycled content.

2. Laboratory Test Reports for Credit IEQ 4: For primers, documentation indicating that products comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."

3. Materials and Resources credit 5 - Regional Materials, Extracted, Processed & Manufactured Regionally

C. Shop Drawings: Show fabrication and installation details for metal fabrications.

Charleston AFB, S. Carolina 05 50 00 - 3

1. Include plans, elevations, sections, and details of metal fabrications and their connections. Show anchorage and accessory items.

D. Samples for Verification: For each type and finish of extruded nosing.

E. Delegated-Design Submittal: For installed products indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For qualified professional engineer.

B. Mill Certificates: Signed by manufacturers of stainless-steel certifying that products furnished comply with requirements.

C. Welding certificates.

D. Paint Compatibility Certificates: From manufacturers of topcoats applied over shop primers certifying that shop primers are compatible with topcoats.

1.6 QUALITY ASSURANCE

A. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."

B. Welding Qualifications: Qualify procedures and personnel according to the following:

1. AWS D1.1/D1.1M, "Structural Welding Code - Steel."

2. AWS D1.2/D1.2M, "Structural Welding Code - Aluminum."

1.7 PROJECT CONDITIONS

A. Field Measurements: Verify actual locations of walls and other construction contiguous with metal fabrications by field measurements before fabrication.

1.8 COORDINATION

A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written recommendations to ensure that shop primers and topcoats are compatible with one another.

B. Coordinate installation of anchorages and steel weld plates and angles for casting into concrete. Furnish setting drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items with integral anchors, that are to be embedded in concrete or masonry. Deliver such items to Project site in time for installation.

PART 2 - PRODUCTS

2.1 METALS, GENERAL

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise indicated. For metal fabrications exposed to view in the completed Work, provide materials without seam marks, roller marks, rolled trade names, or blemishes.

Charleston AFB, S. Carolina 05 50 00 - 4

2.2 FERROUS METALS

A. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent.

B. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M.

C. Steel Tubing: ASTM A 500, cold-formed steel tubing.

D. Steel Pipe: ASTM A 53/A 53M, standard weight Schedule 40 unless otherwise indicated.

E. Slotted Channel Framing: Cold-formed metal box channels struts complying with MFMA-4.

1. Size of Channels: As indicated.

2. Material: Galvanized steel, ASTM A 653/A 653M, with G90 (Z275) coating;

0.079-inch (2-mm) nominal thickness.

3. Material: Cold-rolled steel, ASTM A 1008/A 1008M, 0.0966-inch (2.5-mm) minimum thickness; unfinished.

2.3 NONFERROUS METALS

A. Aluminum Plate and Sheet: ASTM B 209 (ASTM B 209M), Alloy 6061-T6.

B. Aluminum Extrusions: ASTM B 221 (ASTM B 221M), Alloy 6063-T6.

2.4 FASTENERS

A. General: Unless otherwise indicated, provide Type 304 stainless-steel fasteners for exterior use and zinc-plated fasteners with coating complying with ASTM B 633 or ASTM F 1941 (ASTM F 1941M), Class Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.

B. Steel Bolts and Nuts: Regular hexagon-head bolts, ASTM A 307, Grade A (ASTM F 568M, Property Class 4.6); with hex nuts, ASTM A 563 (ASTM A 563M); and, where indicated, flat washers.

C. Stainless-Steel Bolts and Nuts: Regular hexagon-head annealed stainless-steel bolts, ASTM F 593 (ASTM F 738M); with hex nuts, ASTM F 594 (ASTM F 836M); and, where indicated, flat washers; Alloy Group 1 (A1).

D. Anchor Bolts: ASTM F 1554, Grade 36, of dimensions indicated; with nuts, ASTM A 563;

and, where indicated, flat washers.

1. Hot-dip galvanize or provide mechanically deposited, zinc coating where item being fastened is indicated to be galvanized.

E. Eyebolts: ASTM A 489.

F. Machine Screws: ASME B18.6.3 (ASME B18.6.7M).

G. Lag Screws: ASME B18.2.1 (ASME B18.2.3.8M).

H. Wood Screws: Flat head, ASME B18.6.1.

I. Plain Washers: Round, ASME B18.22.1 (ASME B18.22M).

J. Lock Washers: Helical, spring type, ASME B18.21.1 (ASME B18.21.2M).

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K. Anchors, General: Anchors capable of sustaining, without failure, a load equal to six times the load imposed when installed in unit masonry and four times the load imposed when installed in concrete, as determined by testing according to ASTM E 488, conducted by a qualified independent testing agency.

L. Cast-in-Place Anchors in Concrete: Either threaded type or wedge type unless otherwise indicated; galvanized ferrous castings, either ASTM A 47/A 47M malleable iron or ASTM A 27/A 27M cast steel. Provide bolts, washers, and shims as needed, all hot-dip galvanized per ASTM F 2329.

M. Post-Installed Anchors: Torque-controlled expansion anchors.

1. Material for Interior Locations: Carbon-steel components zinc plated to comply with ASTM B 633 or ASTM F 1941 (ASTM F 1941M), Class Fe/Zn 5, unless otherwise indicated.

2. Material for Exterior Locations and Where Stainless Steel is Indicated: Alloy Group 1 (A1) stainless-steel bolts, ASTM F 593 (ASTM F 738M), and nuts, ASTM F 594 (ASTM F 836M).

N. Slotted-Channel Inserts: Cold-formed, hot-dip galvanized-steel box channels (struts) complying with MFMA-4, 1-5/8 by 7/8 inches (41 by 22 mm) by length indicated with anchor straps or studs not less than 3 inches (75 mm) long at not more than 8 inches (200 mm) o.c. Provide with temporary filler and tee-head bolts, complete with washers and nuts, all zinc-plated to comply with ASTM B 633, Class Fe/Zn 5, as needed for fastening to inserts.

2.5 MISCELLANEOUS MATERIALS

A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded.

B. Low-Emitting Materials: Paints and coatings shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."

C. Shop Primers: Provide primers that comply with (Section 099113 "Exterior Painting," Section 099123 Interior Painting,"and Section 099600 "High-Performance Coatings.")

D. Universal Shop Primer: Fast-curing, lead- and chromate-free, universal modified-alkyd primer complying with MPI#79 and compatible with topcoat.

1. Use primer containing pigments that make it easily distinguishable from zinc-rich primer.

E. Galvanizing Repair Paint: High-zinc-dust-content paint complying with SSPC-Paint 20 and compatible with paints specified to be used over it.

F. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187.

G. Nonshrink, Metallic Grout: Factory-packaged, ferrous-aggregate grout complying with ASTM C 1107, specifically recommended by manufacturer for heavy-duty loading applications.

H. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for interior and exterior applications.

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I. Concrete: Comply with requirements in Section 033000 "Cast-in-Place Concrete" for normal-weight, air-entrained, concrete with a minimum 28-day compressive strength of 3000 psi (20 MPa).

2.6 FABRICATION, GENERAL

A. Shop Assembly: Preassemble items in the shop to greatest extent possible.

Disassemble units only as necessary for shipping and handling limitations. Use connections that maintain structural value of joined pieces. Clearly mark units for reassembly and coordinated installation.

B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch (1 mm) unless otherwise indicated. Remove sharp or rough areas on exposed surfaces.

C. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise impairing work.

D. Form exposed work with accurate angles and surfaces and straight edges.

E. Weld corners and seams continuously to comply with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surfaceForm exposed connections with hairline joints, flush and smooth, using concealed fasteners or welds where possible. Where exposed fasteners are required, use Phillips flat-head (countersunk) fasteners unless otherwise indicated. Locate joints where least conspicuous.

F. Fabricate seams and other connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate.

G. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws, and similar items.

H. Provide for anchorage of type indicated; coordinate with supporting structure. Space anchoring devices to secure metal fabrications rigidly in place and to support indicated loads.

1. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel strap anchors, 1/8 by 1-1/2 inches (3.2 by 38 mm), with a minimum 6-inch (150-mm) embedment and 2-inch (50-mm) hook, not less than 8 inches (200 mm) from ends and corners of units and 24 inches (600 mm) o.c., unless otherwise indicated.

2.7 MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Provide steel framing and supports not specified in other Sections as needed to complete the Work.

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B. Fabricate units from steel shapes, plates, and bars of welded construction unless otherwise indicated. Fabricate to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction.

1. Fabricate units from slotted channel framing where indicated.

2. Furnish inserts for units installed after concrete is placed.

C. Fabricate supports for operable partitions from continuous steel beams of sizes indicated with attached bearing plates, anchors, and braces as indicated. Drill or punch bottom flanges of beams to receive partition track hanger rods; locate holes where indicated on operable partition Shop Drawings.

D. Galvanize miscellaneous framing and supports where indicated.

E. Prime miscellaneous framing and supports with primer specified in Section 099600 "High- Performance Coatings" where indicated.

2.8 SHELF ANGLES

A. Fabricate shelf angles from steel angles of sizes indicated and for attachment to concrete framing. Provide horizontally slotted holes to receive 3/4-inch (19-mm) bolts, spaced not more than 6 inches (150 mm) from ends and 24 inches (600 mm) o.c., unless otherwise indicated.

1. Provide mitered and welded units at corners.

2. Provide open joints in shelf angles at expansion and control joints. Make open joint approximately 2 inches (50 mm) larger than expansion or control joint.

B. For cavity walls, provide vertical channel brackets to support angles from backup masonry and concrete.

C. Galvanize shelf angles located in exterior walls.

D. Prime shelf angles located in exterior walls with primer specified in Section 099600 "High- Performance Coatings."

E. Furnish wedge-type concrete inserts, complete with fasteners, to attach shelf angles to cast-in-place concrete.

2.9 MISCELLANEOUS STEEL TRIM

A. Unless otherwise indicated, fabricate units from steel shapes, plates, and bars of profiles shown with continuously welded joints and smooth exposed edges. Miter corners and use concealed field splices where possible.

B. Provide cutouts, fittings, and anchorages as needed to coordinate assembly and installation with other work.

1. Provide with integrally welded steel strap anchors for embedding in concrete or masonry construction.

C. Galvanize exterior miscellaneous steel trim. Where indicated.

D. Prime exterior ]miscellaneous steel trim with primer specified in Section 099600 "High- Performance Coatings."

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2.10 METAL BOLLARDS

A. Fabricate metal bollards from steel shapes, as indicated.

1. Cap bollards with 1/4-inch- (6.4-mm-) thick steel plate.

2. Where bollards are indicated to receive controls for door operators, provide necessary cutouts for controls and holes for wire.

3. Where bollards are indicated to receive light fixtures, provide necessary cutouts for fixtures and holes for wire.

B. Fabricate bollards with 3/8-inch- (9.5-mm-) thick steel baseplates for bolting to concrete slab. Drill baseplates at all four corners for 3/4-inch (19-mm) anchor bolts.

1. Where bollards are to be anchored to sloping concrete slabs, angle baseplates for plumb alignment of bollards.

C. Fabricate sleeves for bollard anchorage from steel pipe with 1/4-inch- (6.4-mm-) thick steel plate welded to bottom of sleeve. Make sleeves not less than 8 inches (200 mm) deep and 3/4 inch (19 mm) larger than OD of bollard.

D. Fabricate internal sleeves for removable bollards from Schedule 40 steel pipe or 1/4-inch (6.4-mm) wall-thickness steel tubing with an OD approximately 1/16 inch (1.5 mm) less than ID of bollards. Match drill sleeve and bollard for 3/4 inch (19 mm) steel machine bolt.

E. Prime bollards with primer specified in Section 099600 "High-Performance Coatings."

2.11 ABRASIVE METAL NOSINGS AND THRESHOLDS

A. Cast-Metal Units: Cast aluminum, with an integral-abrasive, as-cast finish consisting of aluminum oxide, silicon carbide, or a combination of both. Fabricate units in lengths necessary to accurately fit openings or conditions.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. American Safety Tread Co., Inc.

b. Balco Inc.

c. Barry Pattern & Foundry Co., Inc.

d. Granite State Casting Co.

e. Safe-T-Metal Company, Inc.

f. Wooster Products Inc.

2. Nosings: Cross-hatched units, 4 inches (100 mm) wide with 1-inch (25-mm) lip, for casting into concrete steps.

3. Nosings: Cross-hatched units, 1-1/2 by 1-1/2 inches (38 by 38 mm), for casting into concrete curbs.

4. Treads: Cross-hatched units, full depth of tread with 3/4-by-3/4-inch (19-by-19-

mm) nosing, for application over bent plate treads or existing stairs.

5. Thresholds: Fluted-saddle-type units, 5 inches (125 mm) wide by 1/2 inch (12

mm) high, with tapered edges.

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6. Thresholds: Fluted-interlocking- hook-strip) type units, 5 inches (125 mm) wide by 5/8 inch (16 mm) high, with tapered edge.

7. Thresholds: Plain-stepped- (stop-) type units, 5 inches (125 mm) wide by 1/2 inch (12 mm) high, with 1/2-inch (12-mm) step.

B. Extruded Units: Aluminum, with abrasive filler consisting of aluminum oxide, silicon carbide, or a combination of both, in an epoxy-resin binder. Fabricate units in lengths necessary to accurately fit openings or conditions.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. ACL Industries, Inc.

b. American Safety Tread Co., Inc.

c. Amstep Products.

d. Armstrong Products, Inc.

e. Balco Inc.

f. Granite State Casting Co.

g. Wooster Products Inc.

2. Provide ribbed units, with abrasive filler strips projecting 1/16 inch (1.5 mm) above aluminum extrusion.

3. Provide solid-abrasive-type units without ribs.

4. Nosings: Square-back units, 4 inches (100 mm) wide, for casting into concrete steps.

C. Provide anchors for embedding units in concrete, either integral or applied to units, as standard with manufacturer.

D. Drill for mechanical anchors and countersink. Locate holes not more than 4 inches (100

mm) from ends and not more than 12 inches (300 mm) o.c., evenly spaced between ends, unless otherwise indicated. Provide closer spacing if recommended by manufacturer.

1. Provide two rows of holes for units more than 5 inches (125 mm) wide, with two holes aligned at ends and intermediate holes staggered.

E. Apply bituminous paint to concealed surfaces of cast-metal units.

F. Apply clear lacquer to concealed surfaces of extruded units.

2.12 METAL DOWNSPOUT BOOTS

A. Provide downspout boots made from cast aluminum in heights indicated with inlets of size and shape to suit downspouts. Provide units with flanges and holes for countersunk anchor bolts.

1. Outlet: Vertical, to discharge into pipe.

2.13 LOOSE BEARING AND LEVELING PLATES

A. Provide loose bearing and leveling plates for steel items bearing on masonry or concrete construction. Drill plates to receive anchor bolts and for grouting.

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B. Galvanize plates.

C. Prime plates with primer specified in Section 099600 "High-Performance Coatings."

2.14 LOOSE STEEL LINTELS

A. Fabricate loose steel lintels from steel angles and shapes of size indicated for openings and recesses in masonry walls and partitions at locations indicated. Fabricate in single lengths for each opening unless otherwise indicated. Weld adjoining members together to form a single unit where indicated.

B. Size loose lintels to provide bearing length at each side of openings equal to 1/12 of clear span but not less than 8 inches (200 mm) unless otherwise indicated.

C. Galvanize loose steel lintels located in exterior walls.

D. Prime loose steel lintels located in exterior walls with primer specified in Section 099600 "High-Performance Coatings."

2.15 STEEL WELD PLATES AND ANGLES

A. Provide steel weld plates and angles not specified in other Sections, for items supported from concrete construction as needed to complete the Work. Provide each unit with no fewer than two integrally welded steel strap anchors for embedding in concrete.

2.16 FINISHES, GENERAL

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes.

B. Finish metal fabrications after assembly.

C. Finish exposed surfaces to remove tool and die marks and stretch lines, and to blend into surrounding surface.

2.17 STEEL AND IRON FINISHES

A. Galvanizing: Hot-dip galvanize items as indicated to comply with ASTM A 153/A 153M for steel and iron hardware and with ASTM A 123/A 123M for other steel and iron products.

1. Do not quench or apply post galvanizing treatments that might interfere with paint adhesion.

B. Shop prime iron and steel items not indicated to be galvanized unless they are to be embedded in concrete, sprayed-on fireproofing, or masonry, or unless otherwise indicated.

1. Shop prime with universal shop primer primers specified in Section 099600 "High-Performance Coatings" are indicated.

C. Preparation for Shop Priming: Prepare surfaces to comply with requirements indicated below:

1. Exterior Items: SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

2. Items Indicated to Receive Zinc-Rich Primer: SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

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3. Items Indicated to Receive Primers Specified in Section 099600 "High- Performance Coatings": SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

4. Other Items: SSPC-SP 3, "Power Tool Cleaning."

D. Shop Priming: Apply shop primer to comply with SSPC-PA 1, "Paint Application Specification No. 1: Shop, Field, and Maintenance Painting of Steel," for shop painting.

1. Stripe paint corners, crevices, bolts, welds, and sharp edges.

2.18 ALUMINUM FINISHES

A. Finish designations prefixed by AA comply with the system established by the Aluminum Association for designating aluminum finishes.

B. As-Fabricated Finish: AA-M10 (Mechanical Finish: as fabricated, unspecified).

C. Class I, Clear Anodic Finish: AA-M12C22A41 (Mechanical Finish: nonspecular as fabricated; Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, clear coating 0.018 mm or thicker) complying with AAMA 611.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, alignment, and elevation;

with edges and surfaces level, plumb, true, and free of rack; and measured from established lines and levels.

B. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints but cannot be shop welded because of shipping size limitations. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication and are for bolted or screwed field connections.

C. Field Welding: Comply with the following requirements:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surface.

D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction. Provide threaded fasteners for use with concrete and masonry inserts, toggle bolts, through bolts, lag screws, wood screws, and other connectors.

E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction.

F. Corrosion Protection: Coat concealed surfaces of aluminum that will come into contact with grout, concrete, masonry, wood, or dissimilar metals with the following:

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1. Cast Aluminum: Heavy coat of bituminous paint.

2. Extruded Aluminum: Two coats of clear lacquer.

3.2 INSTALLING MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Install framing and supports to comply with requirements of items being supported, including manufacturers' written instructions and requirements indicated on Shop Drawings.

B. Anchor supports for operable partitions securely to and rigidly brace from building structure.

C. Support steel girders on solid grouted masonry, concrete, or steel pipe columns. Secure girders with anchor bolts embedded in grouted masonry or concrete or with bolts through top plates of pipe columns.

1. Where grout space under bearing plates is indicated for girders supported on concrete or masonry, install as specified in "Installing Bearing and Leveling Plates" Article.

D. Install pipe columns on concrete footings with grouted baseplates. Position and grout column baseplates as specified in "Installing Bearing and Leveling Plates" Article.

1. Grout baseplates of columns supporting steel girders after girders are installed and leveled.

3.3 INSTALLING METAL BOLLARDS

A. Fill metal-capped bollards solidly with concrete and allow concrete to cure seven days before installing.

1. Do not fill removable bollards with concrete.

B. Anchor bollards in concrete with pipe sleeves preset and anchored into concrete Fill annular space around bollard solidly with nonshrink, nonmetallic grout; mixed and placed to comply with grout manufacturer's written instructions. Slope grout up approximately 1/8 inch (3 mm) toward bollard.

C. Anchor bollards in place with concrete footings. Center and align bollards in holes 3 inches (75 mm) above bottom of excavation. Place concrete and vibrate or tamp for consolidation. Support and brace bollards in position until concrete has cured.

D. Anchor internal sleeves for removable bollards in concrete by inserting into pipe sleeves preset into concrete. Fill annular space around internal sleeves solidly with nonshrink, nonmetallic grout; mixed and placed to comply with grout manufacturer's written instructions. Slope grout up approximately 1/8 inch (3 mm) toward internal sleeve.

E. Anchor internal sleeves for removable bollards in place with concrete footings. Center and align sleeves in holes 3 inches (75 mm) above bottom of excavation. Place concrete and vibrate or tamp for consolidation. Support and brace sleeves in position until concrete has cured.

F. Place removable bollards over internal sleeves and secure with 3/4-inch (19-mm) machine bolts and nuts. After tightening nuts, drill holes in bolts for inserting padlocks.

Contracting Officer will furnish padlocks.

G. Fill bollards solidly with concrete, mounding top surface to shed water.

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1. Do not fill removable bollards with concrete.

3.4 INSTALLING NOSINGS, AND THRESHOLDS

A. Center nosings on tread widths unless otherwise indicated.

B. For nosings embedded in concrete steps or curbs, align nosings flush with riser faces and level with tread surfaces.

C. Seal thresholds exposed to exterior with elastomeric sealant…

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