CRDBunkhouse_final_specifications_081211.pdf

USFS CWC 12 Person Bunkhouse Accessibility Retrofit

Table of Contents

Division 01 – General Requirements 010000 General Requirements

Division 02 – Existing Conditions 023170 Excavation and Backfill for Structures 024119 Selective Structure Demolition

Division 03 – Concrete 033000 Cast-In-Place Concrete

Division 05 – Metals 051200 Structural Steel Framing 055000 Metal Fabrications 055100 Metal Stairs 055213 Steel Tube Railings 055300 Metal Gratings

Division 06 – Wood, Plastics, and Composites 061000 Rough Carpentry 064023 Interior Architectural Woodwork

Division 07 – Thermal and Moisture Protection 072100 Thermal Insulation 074113 Metal Roof Panels 074600 Siding 079200 Joint Sealants

Division 08 – Openings 081113 Hollow Metal Doors and Frames 081416 Flush Wood Doors 085313 Vinyl Windows

Division 09 – Finishes 092900 Gypsum Board 093000 Tiling 095113 Acoustical Panel Ceilings 096229 Cork Flooring 096513 Resilient Base and Accessories 096516 Linoleum Flooring 099113 Exterior Painting 099123 Interior Painting

Division 10 – Specialties 101400 Signage 102800 Toilet, Bath, and Laundry Accessories

Division 11 – Equipment 113100 Appliances

Division 12 – Furnishings 123200 Manufactured Wood Casework

Division 22 – Plumbing 220000 General Plumbing Work 220500 Basic Plumbing Materials and Methods 221116 Pipe and Fittings 221117 Domestic Water Piping Specialties 224100 Plumbing Fixtures

Division 23 – Mechanical 230000 General Mechanical Work 230500 Basic Mechanical Materials and Methods 230593 Testing, Adjusting, and Balancing For HVAC 233113 Ductwork and Accessories 233400 Fans 233700 Air Outlets and Inlets

Division 26 – Electrical 260500 Common Work Results for Electrical 260519 Low-Voltage Electrical Power Conductors and Cables 260526 Grounding and Bonding for Electrical Systems 260529 Hangers and Supports for Electrical Systems 260533 Raceway and Boxes for Electrical Systems 262726 Wiring Devices 265100 Interior Lighting 280500 Common Work Results for Electronic Safety and Security

GENERAL REQUIREMENTS 010000

SECTION 010000

GENERAL REQUIREMENTS

PART 1 - GENERAL

1.0 SECTION INCLUDES

1.1 Summary of Work

1.2 Existing Conditions

1.3 Meetings

1.4 Submittal procedures

1.5 Construction schedules

1.6 Proposed products list

1.7 Product data

1.8 Shop drawings

1.9 Manufacturer’s instructions and certificates

1.10 Project Record documents

1.11 Quality Control

1.12 Product Delivery, handling, storage and protection

1.13 Substitutions

1.14 Closeout procedures

1.15 Measurement and payment

1.1 SUMMARY OF WORK

A. In summary, the project generally consists of renovating the following areas of the existing 12-person bunkhouse at the Cordova Work Center (CWC):

1. Entrance, vestibule, two bedrooms, bathroom, shower room, commons/dining area (lounge) and TV room on the west end,

2. Kitchen and pantry;

3. Corridor; and

4. Laundry room and laundry room access.

B. The primary purpose of this project is to complete an accessibility retrofit on the existing CWC 12-person bunkhouse.

1.2 EXISTING CONDITIONS

A. The 12-person bunkhouse is located in the Cordova Work Center at 907 LeFevre Street in Cordova, Alaska. Cordova may be accessed by daily Alaska Airlines jet service from Anchorage and Juneau. It is also accessible by Alaska Marine Highway ferry service from Valdez and Whittier.

B. Contractor shall be responsible for verifying all site characteristics and conditions pertinent to its bidding and execution of the work.

1.3 MEETINGS

A. A preconstruction meeting will be held within 20 days after contract award to discuss technical aspects of drawings and specifications, address questions, provide coordination documents, and discuss submittal procedures for technical data and invoicing. The Contractor should come prepared with the following:

1. Contractor’s Work week and established hours

2. Project Schedule

3. Construction Work Plan

4. Letters of Designation for representing the Contractor, including authorities and limitations.

B. Meeting(s) may be held when and if a problem or deficiency develops, or is likely to occur. At a minimum, the meeting will be attended by the Contractor and the Contracting Officer.

1.4 SUBMITTAL PROCEDURES

A. Submittal documents to identify project, Contractor, subcontractor or supplier; and pertinent Contract Document references.

B. When specified in individual specification sections, submit manufacturer printed instructions for delivery, storage, assembly, installation, adjusting, and finishing, in quantities specified for Product Data.

C. Identify product or system limitations which may be detrimental to successful performance of completed Work.

D. The Contractor shall certify in writing that submittals have received technical review and stamps as necessary, field verification of measurements has been completed, and Drawings comply with Contract Requirements.

E. Contracting Officer will review the submittals, mark the document with appropriate notations, or comments and return the marked document to the Contractor for revision or filing in the Project record. Revise and resubmit submittals as required;

identify changes made since previous submittal. Allow up to 2 weeks for review of submittals.

F. Contractor shall prepare and submit a Construction Work Plan summarizing the proposed methods, equipment, and sequencing of all elements of the work. The Contractor’s Construction Work Plan shall be submitted to the Contracting Officer at the preconstruction meeting.

G. Warranty- Refer to requirements in FAR Clause 52.246-21.

1.5 CONSTRUCTION SCHEDULES

A. Submit initial project schedule at the preconstruction meeting.

B. Submit schedules weekly and with each Application for Payment, identifying changes since previous version. Indicate estimated percentage of completion for each item of Work at each submission.

C. Submit horizontal bar chart with separate line for each section of Work, identifying first work day of each week. Chart shall be submitted in Adobe PDF format, formatted to print on 11” x 17” paper.

1.6 PROPOSED PRODUCTS LIST

A. Within 20 calendar days after date of Notice to Proceed, submit list of major Products proposed for use, with name of manufacturer, trade name, and model number of each product.

1.7 PRODUCT DATA

A. Product Data:

1. Submitted to Contracting Officer for review for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents.

B. Submit electronically to the Contracting Officer, in Adobe PDF format.

C. Mark each copy to identify applicable products, models, options, and other data.

Supplement manufacturer’s standard data to provide information unique to this project.

D. Contractor shall not ship products to site until Contracting Officer has reviewed and accepted product data submittals.

1.8 SHOP DRAWINGS

A. Shop Drawings:

1. Submitted to Contracting Officer for limited purpose of checking for conformance with information given and design concept expressed in Contract Documents.

2. After Contracting Officer’s review, distribute in accordance with the SUBMITTAL PROCEDURES paragraph above and for record documents purposes as specified.

B. When required by individual specification sections, provide shop drawings signed and sealed by a professional engineer responsible for designing components shown on shop drawings.

1. Include signed and sealed calculations to support design.

2. Make revisions and provide additional information as required.

C. All shop drawings and submittal data shall include all dimensions, weights, capacities, and other measurements shall be expressed in standard English system of measurements.

D. All drawings and submittal data shall be submitted in Adobe PDF format, formatted to print on 8½” x 11” or 11” x 17” paper, and in quality suitable for reproduction.

1.9 MANUFACTURER’S INSTRUCTIONS AND CERTIFICATES

A. Indicate material or product conforms to or exceeds specified requirements.

Submit supporting reference data, and certifications as appropriate.

1.10 PROJECT RECORD DOCUMENTS

A. The purpose of the Project Record Documents is to provide factual information regarding all aspects of the Work, both concealed and visible, to enable future modification of the Work to proceed without lengthy and expensive site exploration.

B. Contracting Officer shall supply to the Contractor electronic files of the drawings on compact disc as “.dwg” files compatible with AutoCAD version 2010 or higher.

Contractor shall utilize the electronic files to prepare final project record drawings compatible with AutoCAD 2010 and IBM-compatible equipment.

C. Contractor shall carefully transfer data shown on the Job Set to the corresponding electronic files, coordinating the changes as required. Revised drawings shall clearly indicate each affected detail and drawing and include a full description of changes made during construction and the actual location of items.

D. Call attention to each entry by drawing a "cloud" around the area or areas affected.

E. Make changes neatly and consistently to assure readability and clear reproduction.

F. Contractor shall supply to the Contracting Officer electronic files of the drawings on compact disc as “.dwg” files compatible with AutoCAD version 2010 with all recorded changes as noted above immediately following approval of Substantial Completion.

1.11 QUALITY CONTROL

A. Monitor quality control over suppliers, manufacturers, products, services, site conditions, and workmanship, to produce Work of specified quality.

B. Comply with manufacturer’s instructions.

C. Comply with specified standards as minimum quality for the work.

1.12 PRODUCT DELIVERY, HANDLING, STORAGE AND PROTECTION

A. Deliver, handle, store, and protect Products in accordance with manufacturer’s instructions.

B. The Contracting Officer will not accept any damaged or otherwise compromised products, regardless of the cause of such damage.

1.13 SUBSTITUTIONS

A. Contracting Officer will consider requests for Substitutions only within 30 calendar days after contract award.

B. Document each request with complete data and/or rationale substantiating compliance of proposed Substitution with Contract Documents.\

C. Request for substitution does not grant additional contract time.

1.14 CLOSEOUT PROCEDURES

A. Final Inspection:

1. The Contractor shall notify the Contracting Officer, in writing, when the work is substantially complete and ready for final inspection.

2. After receipt of such notice, allow up to five (5) working days for the Contracting

Officer to complete an inspection.

B. Final pay request will be processed for payment upon final inspection and Contracting Officer’s certification that work under the contract is 100% complete.

1.15 MEASUREMENT AND PAYMENT

A. Follow the established method of measurements as provided in the contract.

B. Measurement for payment will be lump sum as shown in the Schedule of Items.

Payment shall be considered full compensation for furnishing all labor, materials and equipment to complete the Work in accordance with the requirements and intent of the Contract Documents, including the Contract Specifications, and Drawings.

C. If the contractor requests intermediate payments on a lump-sum item, the contractor must submit a breakdown of the lump-sum price for the Government to use as a basis of measurement.

PART 2 - PRODUCTS

Not Used.

PART 3 - EXECUTION

Not Used.

END OF SECTION

EXCAVATION AND BACKFILL FOR STRUCTURES 023170

SECTION 023170

EXCAVATION AND BACKFILL FOR STRUCTURES

1. PART 1 - GENERAL

1.01 SUMMARY

A. This section specifies excavation and backfill for structures, including excavation; furnishing, hauling and placing of backfill material; disposal of excess or unsuitable backfill material; and grading.

B. Material to be excavated is unclassified.

1.02 OWNER’S INSTRUCTIONS

A. Conform to the dimensions and elevations indicated on the Drawings. Suitable bearing may be encountered at different elevations from those on the Drawings.

If so, the COR may direct, by written order, that the excavation elevations be changed to the elevation where suitable bearing was encountered. Extend excavation a sufficient distance from walls and footings to allow placing and removal of forms. Undercutting will not be permitted. Prevent surface water from entering the excavation.

2. PART 2 - PRODUCTS

2.01 MATERIALS

A. Backfill Materials:

1. Backfill materials shall contain no organic or frozen material.

a. Non-Frost Susceptible Material (NFS):

1) Granular soils, consisting of sound, tough, durable pebbles or rock fragments of uniform quality; Free from clay balls, vegetable matter, or other deleterious matters and containing less than three

(3) percent by weight finer than 0.02 millimeters when compacted in place and meeting the following gradation.

2) Sieve Percent Passing by weight

1.5 inch 100 1 inch 70-100 #4 20-55 #200 0-6

3. PART 3 - EXECUTION

3.01 CONSTRUCTION

A. Excavation:

1. Material:

a. Extend excavation a minimum of _3_ inches beyond exterior finished footing dimensions, to allow for placing and removal of forms and other appurtenances. Do not undercut.

b. Grade areas in vicinity of construction to prevent surface water from running into excavated areas.

2. Overexcavation Under Footings:

a. Increase the depth of the footing by the amount of overexcavation. Pour entire footing, including overexcavated volume, in one continuous pour to rest on undisturbed soil.

B. Backfill:

1. Preparation for Backfill:

a. Remove all forms from structure, and clean the excavated area of all debris. Remove any standing water from excavation. Prior to backfill, obtain approval from COR to backfill excavated area.

b. Backfilling all Structures:

1) Do not backfill in a manner to cause structure to become point loaded. Place backfill in uniform lifts around structure.

c. Backfilling of Concrete;

1) Do not backfill until concrete has been in place for 14 days or a strength of 1,000 psi has been reached, unless allowed in writing by

COR.

d. Overexcavation Backfill Under Slabs:

1) Restore grade for slabs as follows:

a) Within 6 inches of slab bottom: Use NFS material.

b) Over 6 inches below slab: Use general backfill material.

c) Place material in 6 inch maximum lifts and compact with a minimum of 2 passes over the entire layer with mechanical vibrating tamper.

e. Placing Backfill Material;

1) Place all backfill material in 6 inch maximum lifts. Compact each lift with a minimum of 2 passes over the entire layer with mechanical tampers.

2) Do not use tracked or wheeled equipment to compact backfill.

C. Grading”

1. Grade surface uniformly between spot elevations or contours to match existing adjacent ground elevations. Slope surface to provide drainage away from structures.

3.02 REPAIR/RESTORATION

A. Underground Utilities:

1. Stop all work associated with damage to existing utilities, and notify COR.

Repair utility as directed by the COR.

2. Repair at Contractor's expense underground utilities within 5 feet of where marked on the ground or shown on the Drawings and damaged by the Contractor.

3. Repair at Government expense underground utilities not shown on the Drawings or not within 5 feet of where shown on the Drawings, and damaged by the Contractor.

4. Repair at Contractor's expense underground utilities marked on the ground or shown on the Drawings, and damaged by the Contractor.

5. Repair at Government expense underground utilities not shown on Drawings or not marked on the ground, and damaged by the Contractor.

3.03 EXCESS EXCAVATED MATERIAL (SUITABLE AND UNSUITABLE)

A. Spread excess material adjacent to structure site to blend with existing contours.

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

END OF SECTION

USFS CWC 12 Person Bunkhouse Accessibility

SELECTIVE STRUCTURE DEMOLITION

024119 - 1

SECTION 024119

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Demolition and removal of selected portions of building or structure.

2. Salvage of existing items to be reused or recycled.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site unless indicated to be removed and reinstalled.

B. Remove and Reinstall: Detach items from existing construction, prepare for reuse, and reinstall where indicated.

C. Existing to Remain: Existing items of construction that are not to be permanently removed and that are not otherwise indicated to be removed or removed and reinstalled.

1.3 FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so Owner's operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

C. Notify Contracting Officer of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. If suspected hazardous materials are encountered, do not disturb;

immediately notify Contracting Officer and Owner. Hazardous materials will be removed by Owner under a separate contract.

E. Storage or sale of removed items or materials on-site is not permitted.

024119 - 2

F. Utility Service: Maintain existing fire protection facilities through the project.

1.4 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials so as not to void existing warranties.

PART 2 - PRODUCTS

2.1 PEFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI/ASSE A10.6 and NFPA 241.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict. Promptly submit a written report to Contracting Officer.

C. Perform an engineering survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during selective building demolition operations.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

1. Comply with requirements for existing services/systems interruptions specified in Division 01 "General Requirements."

B. Existing Services/Systems to Be Removed, Relocated, or Abandoned: Locate, identify, disconnect, and seal or cap off indicated utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Arrange to shut off indicated utilities with utility companies.

2. If services/systems are required to be removed, relocated, or abandoned, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of building.

024119 - 3

3. Disconnect, demolish, and remove fire-suppression systems, plumbing, and HVAC systems, equipment, and components indicated to be removed.

a. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material.

b. Piping to Be Abandoned in Place: Drain piping and cap or plug piping with same or compatible piping material.

c. Equipment to Be Removed: Disconnect and cap services and remove equipment.

d. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

e. Ducts to Be Removed: Remove portion of ducts indicated to be removed and plug remaining ducts with same or compatible ductwork material.

f. Ducts to Be Abandoned in Place: Cap or plug ducts with same or compatible ductwork material.

3.3 PREPARATION

A. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

1. Comply with requirements for access and protection specified in Division 01 "General Requirements."

B. Temporary Facilities: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

024119 - 4

C. Temporary Shoring: Provide and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

3.4 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping, to minimize disturbance of adjacent surfaces. Temporarily cover openings to remain.

2. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

3. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations.

Maintain fire watch and portable fire-suppression devices during flame-cutting operations.

4. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

5. Dispose of demolished items and materials promptly. Comply with Owner’s requirements for handling, recycling and disposing of construction waste.

B. Reuse of Building Elements: Project has been designed for reuse of building elements as indicated. Do not demolish building elements beyond what is indicated on Drawings without Contracting Officer's approval.

C. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Store items in a secure area until they are reinstalled.

4. Transport items to Owner's storage area on-site.

5. Protect items from damage during transport and storage.

6. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

024119 - 5

D. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Contracting Officer, items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demolition operations are complete.

3.5 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Except for items or materials indicated to be recycled, reused, reinstalled, or otherwise indicated to remain Owner's property, remove demolished materials from Project site and legally dispose of them in an EPA- approved landfill.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

3. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

4. Comply with Owner’s requirements for handling and disposing of construction waste.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Owner's property and legally dispose of them, unless otherwise indicated.

3.6 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 02 41 19

CAST-IN-PLACE

CONCRETE

033000 -

SECTION 033000

CAST-IN-PLACE CONCRETE

1.1 SUMMARY

A. This Section specifies cast-in place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes.

1.2 SUBMITTALS

A. Product Data: For each type of product indicated. B. Design Mixtures: For each concrete mixture.

C. Shop Drawings: For steel reinforcement.

1.3 QUALITY ASSURANCE

A. Manufacturer Qualifications: A firm experienced in manufacturing ready- mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities."

B. ACI Publications: Comply with the following unless modified by requirements in the Contract Documents:

1. ACI 301, "Specification for Structural Concrete”

2.1 FORM-FACING MATERIALS

A. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material. Provide lumber dressed on at least two edges and one side for tight fit.

2.2 STEEL REINFORCEMENT

A. Reinforcing Bars: ASTM A 615, Grade 60 deformed.

B. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place.

Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice."

2.3 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project:

1. Portland Cement: ASTM C 150, Type I or Type III gray color.

B. Normal-Weight Aggregates: ASTM C 33, graded, 3/4-inch nominal maximum coarse-aggregate size.

1. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: ASTM C 94 and potable.

D. Air-Entraining Admixture: ASTM C 260.

E. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

1. Water-Reducing Admixture: ASTM C 494, Type A.

2. Retarding Admixture: ASTM C 494, Type B.

3. Water-Reducing and Retarding Admixture: ASTM C 494, Type D.

4. Plasticizing and Retarding Admixture: ASTM C 1017, Type II.

2.4 CONCRETE MIXTURES

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

B. Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4500 psi at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45

3. Slump Limit: 4 inches plus or minus 1 1/2 inches.

4. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 3/4-inch nominal maximum aggregate size.

2.5 FABRICATING REINFORCEMENT

A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."

2.6 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94 and ASTM C 1116, and furnish batch ticket information.

3.1 FORMWORK

A. Design, erect, shore, brace, and maintain formwork according to ACI 301 to support vertical, lateral, static, and dynamic loads, and construction loads that might be applied, until structure can support such loads.

B. Construct formwork so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117.

C. Chamfer exterior corners and edges of permanently exposed concrete as shown on the drawings.

3.2 EMBEDDED ITEMS

A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

3.3 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.

3.4 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed.

B. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as indicated. Deposit concrete to avoid segregation.

1. Consolidate placed concrete with mechanical vibrating equipment according to

ACI 301.

C. Cold-Weather Placement: Comply with ACI 306.1.

3.5 FINISHING FORMED SURFACES

A. Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with tie holes and defects repaired and patched. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces of pedestals.

3.6 FINISHING SLABS

A. General: Comply with ACI 302.1R recommendations for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces.

B. Broom Finish: Apply a broom finish to exterior concrete platforms, steps, and ramps, and elsewhere as indicated.

3.7 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold- weather protection and ACI 301 for hot-weather protection during curing.

B. Cure concrete according to ACI 308.1, by one or a combination of the following methods:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days.

3.8 CONCRETE SURFACE REPAIRS

A. Defective Concrete: Repair and patch defective areas when approved by Contracting Officer. Remove and replace concrete that cannot be repaired and patched to Contracting Officer’s approval.

3.9 FIELD QUALITY CONTROL

A. Testing and Inspecting: Owner will engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports.

1. Testing Services: Tests shall be performed according to ACI 301.

END OF SECTION 033000

STRUCTURAL STEEL

FRAMING

051200 -

SECTION 051200 - STRUCTURAL STEEL FRAMING PART 1 - GENERAL

A. This Section includes structural steel and grout.

A. Product Data: For each type of product indicated.

B. Shop Drawings: Show fabrication of structural-steel components. C. Welding certificates.

D. Mill test reports.

E. Source quality-control test reports.

1.3 QUALITY ASSURANCE

A. Fabricator Qualifications: A qualified fabricator who participates in the AISC Quality Certification Program and is designated an AISC-Certified Plant, Category Sbd.

B. Welding: Qualify procedures and personnel according to AWS D1.1, "Structural Welding Code--Steel."

C. Comply with applicable provisions of AISC's "Code of Standard Practice for Steel Buildings and Bridges."

2.1 STRUCTURAL-STEEL MATERIALS

A. Channels, Angles: ASTM A 36

B. Plate and Bar: ASTM A 36

C. Steel Pipe: ASTM A 53, Type E or S, Grade B.

D. Welding Electrodes: Comply with AWS requirements.

2.2 BOLTS, CONNECTORS, AND ANCHORS

A. High-Strength Bolts, Nuts, and Washers: ASTM A 325, Type 1, heavy hex steel structural bolts; ASTM A 563 heavy hex carbon-steel nuts; and ASTM F 436 hardened carbon-steel washers.

1. Finish: Hot-dip zinc coating, ASTM A 153, Class C.

B. Unheaded Anchor Rods: ASTM F 1554, Grade 36.

1. Configuration: Straight.

2. Finish: Hot-dip zinc coating, ASTM A 153, Class C.

2.3 GROUT

A. Metallic, Shrinkage-Resistant Grout: ASTM C 1107, factory-packaged, metallic aggregate grout, mixed with water to consistency suitable for application and a 30-minute working time.

B. Nonmetallic, Shrinkage-Resistant Grout: ASTM C 1107, factory-packaged, nonmetallic aggregate grout, noncorrosive, nonstaining, mixed with water to consistency suitable for application and a 30-minute working time.

2.4 FABRICATION

A. Structural Steel: Fabricate and assemble in shop to greatest extent possible. Fabricate according to AISC's "Code of Standard Practice for Steel Buildings and Bridges" and AISC's "Load and Resistance Factor Design Specification for Structural Steel Buildings."

2.5 SHOP CONNECTIONS

A. High-Strength Bolts: Shop install high-strength bolts according to RCSC's "Specification for Structural Joints Using ASTM A 325 or A 490 Bolts" for type of bolt and type of joint specified.

1. Joint Type: Snug tightened.

B. Weld Connections: Comply with AWS D1.1 for welding procedure specifications, tolerances, appearance, and quality of welds and for methods used in correcting welding work.

2.6 SOURCE QUALITY CONTROL

A. Owner will engage an independent testing and inspecting agency to perform shop tests and inspections and prepare test reports. Comply with testing and inspection requirements of Part 3, Article "Field Quality Control."

B. Correct deficiencies in Work that test reports and inspections indicate does not comply with the Contract Documents.

3.1 ERECTION

A. Examination: Verify elevations of concrete- and masonry-bearing surfaces and locations of anchor rods, bearing plates, and other embedments, with steel erector present, for compliance requirements.

1. Proceed with installation only after unsatisfactory conditions have been corrected.

B. Set structural steel accurately in locations and to elevations indicated and according to AISC's "Code of Standard Practice for Steel Buildings and Bridges" and " Load and Resistance Factor Design Specification for Structural Steel Buildings."

C. Bearing Plates: Clean concrete- and masonry-bearing surfaces of bond-reducing materials, and roughen surfaces prior to setting bearing plates. Clean bottom surface of bearing plates.

1. Set bearing plates for structural members on wedges, shims, or setting nuts as required.

2. Weld plate washers to top of base plate.

3. Snug-tighten anchor rods after supported members have been positioned and plumbed. Do not remove wedges or shims but, if protruding, cut off flush with edge of bearing plate before packing with grout.

4. Promptly pack grout solidly between bearing surfaces and bearing plates so no voids remain. Neatly finish exposed surfaces; protect grout and allow to cure. Comply with manufacturer's written installation instructions for shrinkage-resistant grouts.

D. Maintain erection tolerances of structural steel within AISC's "Code of Standard Practice for Steel Buildings and Bridges."

3.2 FIELD CONNECTIONS

A. High-Strength Bolts: Install high-strength bolts according to RCSC's "Specification for Structural Joints Using ASTM A 325 or A 490 Bolts" for type of bolt and type of joint specified.

3.3 FIE

A.

D QUALITY CONTROL

Testing Agency: Owner will engage a qualified independent testing and inspecting agency to inspect field welds and high-strength bolted connections.

B.

Welded Connections: Field welds will be visually inspected according to

AWS D1.1.

C.

Correct deficiencies in Work that test reports and inspections indicate does not comply with the Contract Documents.

1. Joint Type: Snug tightened.

B. Weld Connections: Comply with AWS D1.1 for welding procedure specifications, tolerances, appearance, and quality of welds and for methods used in correcting welding work.

1. Comply with AISC's "Code of Standard Practice for Steel Buildings and Bridges" and " Load and Resistance Factor Design Specification for Structural Steel Buildings" for bearing, adequacy of temporary connections, alignment, and removal of paint on surfaces adjacent to field welds.

L

END OF SECTION 051200

METAL FABRICATIONS

April 6, 2010

055000 - 1

SECTION 055000

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Miscellaneous steel framing and supports.

2. Shelf angles.

3. Metal ladders.

4. Miscellaneous steel trim.

5. Metal bollards.

6. Loose bearing and leveling plates.

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.

1.2 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, ambient; 180 deg F, material surfaces.

1.3 ACTION SUBMITTALS

A. Product Data: For the following:

1. Paint products.

2. Grout.

PART 2 - PRODUCTS

2.1 METALS, GENERAL

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces without blemishes.

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.

055000 - 2

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

C. Stainless-Steel Bars and Shapes: ASTM A 276, Type 304. D. Steel Tubing:

ASTM A 500, cold-formed steel tubing.

E. Steel Pipe: ASTM A 53, standard weight (Schedule 40) unless otherwise indicated.

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

1. Size of Channels: 1-5/8 by 1-5/8 inches, unless otherwise indicated.

2. Material: Galvanized steel, ASTM A 653, commercial steel, Type B, with G90 coating; 0.079-inch nominal thickness.

G. Cast Iron: Either gray iron, ASTM A 48, or malleable iron, ASTM A 47.

2.3 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, Class Fe/Zn 5, at exterior walls.

1. Provide stainless-steel fasteners for fastening aluminum.

2. Provide stainless-steel fasteners for fastening stainless steel.

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

C. Post-Installed Anchors: Torque-controlled expansion anchors or chemical anchors.

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

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

2.4 MISCELLANEOUS MATERIALS

A. 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."

B. Shop Primers: Provide primers that comply with Division 09 painting Sections.

055000 - 3

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

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

ASTM D 1187.

E. 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.

F. Concrete: Comply with requirements in Division 03 Section "Cast-in-Place Concrete" for normal-weight, air-entrained, concrete with a minimum 28-day compressive strength of 3000 psi.

2.5 FABRICATION, GENERAL

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

Use connections that maintain structural value of joined pieces.

B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges. Remove sharp or rough areas on exposed surfaces.

C. 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.

D. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners or welds where possible. Locate joints where least conspicuous.

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

F. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel strap anchors not less than 24 inches o.c.

2.6 MISCELLANEOUS FRAMING AND SUPPORTS

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

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.

055000 - 4

C. Fabricate steel pipe columns for supporting wood frame construction from steel pipe with steel baseplates and top plates as indicated. Drill or punch baseplates and top plates for anchor and connection bolts and weld to pipe with fillet welds all around. Make welds the same size as pipe wall thickness unless otherwise indicated.

2.7 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 bolts, spaced not more than 6 inches from ends and 24 inches o.c., unless otherwise indicated.

B. Galvanize shelf angles located in exterior walls.

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

2.8 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.

C. Galvanize miscellaneous steel trim.

2.9 METAL BOLLARDS

A. Fabricate metal bollards from Schedule 40 steel pipe. B. Prime bollards with zinc-rich primer.

2.10 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.

2.11 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.

B. Galvanize loose steel lintels located in exterior walls.

055000 - 5

2.12 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.

2.13 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.

2.14 STEEL AND IRON FINISHES

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

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 primers specified in Division 09 painting Sections unless otherwise indicated.

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

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.

055000 - 6

C. Fiel 1.

d Welding: Comply with the following requirements:

Use materials and methods that minimize distortion and develop strength

2.

and corrosion resistance of base metals.

Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended.

D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction.

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

3.2 INSTALLING METAL BOLLARDS

A. Anchor bollards in place with concrete footings. Place concrete and vibrate or tamp for consolidation. Support and brace bollards in position until concrete has cured.

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

3.3 INSTALLING BEARING AND LEVELING PLATES

A. Clean concrete and masonry bearing surfaces of bond-reducing materials, and roughen to improve bond to surfaces. Clean bottom surface of plates.

B. Set bearing and leveling plates on wedges, shims, or leveling nuts. After bearing members have been positioned and plumbed, tighten anchor bolts. Do not remove wedges or shims but, if protruding, cut off flush with edge of bearing plate before packing with grout.

C. Pack grout solidly between bearing surfaces and plates to ensure that no voids remain.

3.4 ADJUSTING AND CLEANING

A. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas. Paint uncoated and abraded areas with the same material as used for shop painting to comply with SSPC-PA 1 for touching up shop-painted surfaces.

B. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A 780.

END OF SECTION 05 50 00

METAL STAIRS

055100 - 1

SECTION 055100

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Industrial-type stairs with steel grating treads.

2. Steel tube railings attached to metal stairs.

B. See Division 05 Section "Steel Tube Railings" for pipe and tube railings not attached to metal stairs.

1.2 PERFORMANCE REQUIREMENTS

A. Delegated Design: Design metal stairs, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.

B. Structural Performance of Stairs: Metal stairs shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated.

1. Uniform Load: 100 lbf/sq. ft.

2. Concentrated Load: 300 lbf applied on an area of 4 sq. in.

3. Uniform and concentrated loads need not be assumed to act concurrently.

4. Stair Framing: Capable of withstanding stresses resulting from railing loads in addition to loads specified above.

5. Limit deflection of treads, platforms, and framing members to L/240 or 1/4 inch, whichever is less.

C. Structural Performance of Railings: Railings shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated.

1. Handrails and Top Rails of Guards:

a. Uniform load of 50 lbf/ ft. applied in any direction.

b. Concentrated load of 200 lbf applied in any direction.

c. Uniform and concentrated loads need not be assumed to act concurrently.

2. Infill of Guards:

a. Concentrated load of 50 lbf applied horizontally on an area of 1 sq. ft. b. Infill load and other loads need not be assumed to act concurrently.

D. Seismic Performance: Metal stairs shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.

1. Component Importance Factor is 1.5.

055100 - 2

1.3 ACTION SUBMITTALS

A. Product Data: For metal stairs.

B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work.

C. 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.

1.4 QUALITY ASSURANCE

A. NAAMM Stair Standard: Comply with "Recommended Voluntary Minimum Standards for Fixed Metal Stairs" in NAAMM AMP 510, "Metal Stairs Manual," for class of stair designated, unless more stringent requirements are indicated.

1. Industrial-Type Stairs: Industrial class.

PART 2 - PRODUCTS

2.1 METALS

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

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

C. Steel Plates, Shapes, and Bars: ASTM A 36.

D. Steel Tubing: ASTM A 500 (cold formed) or ASTM A 513.

E. Steel Bars for Grating: ASTM A 36 or steel strip, ASTM A 1011 or

ASTM A 1018.

F. Wire Rod for Grating Crossbars: ASTM A 510.

G. Uncoated, Cold-Rolled Steel Sheet: ASTM A 1008, either commercial steel, Type B, or structural steel, Grade 25, unless another grade…