MEDINA PARKING GARAGE 132 N. Elmwood Ave., Medina, OH 44256 SPECIFICATIONS DESIGN/CONSTRUCTION TEAM Mike Coates Construction Co. Inc. Rich & Associates, Inc. General Contractor Parking Consultants 800 Summit Ave. 26877 Northwestern Hwy. Suite 208 Niles, OH 44446 Southfield, MI 48033 (330) 652-0190 (248) 353-5080 BSHM Architects, Inc. Karpinski Engineering Historical Consultant Mechanical, Plumbing, Electrical, Technology 15 Central Square, Ste. 300 13714 Cleveland Ave., NW Youngstown, OH 44503 Uniontown, OH 44685 (330) 744-0770 (330) 699-4077 Medina Parking Structure Division 03 - Concrete 03 38 16 - Unbonded Post - Tensioned Concrete 03 30 00 - Cast - In - Place Concrete Division 04 - Unit Masonry 04 20 00 - Unit Masonry Division 05 - Structural Steel 05 12 00 - Structural Steel 05 15 16 - Steel Wire Rope Railing Assembly 05 21 00 - Steel Joist Framing 05 31 00 - Steel Decking 05 50 00 - Metal Fabricating 05 52 00 - Metal Railings Division 07 - Traffic Coatings 07 18 00 - Traffic Coatings 07 19 00 - Water Repellents Division 20 - Fire Protection, Plumbing & HVAC General Provisions 20 01 00 - Fire Protection, Plumbing & HVAC General Provisions 21 03 00 - Fire Protection Basic Materials and Methods 21 10 00 - Water Based Fire Protection Systems 22 03 00 - Plumbing Basic Material and Methods 22 07 00 - Plumbing Insulation 22 10 00 - Plumbing System Components Division 23 - Split System Air Conditioners 23 81 26 - Split System Air Conditioners 23 82 03 - Electric Heating Units Division 26 - Electrical General Provisions 26 01 00 - Electrical General Provisions 26 03 10 - Low Voltage Electrical Power Conductors and Cables 26 03 30 - Underground Ducts and Raceways For Electrical Systems 26 21 00 - Power Distribution Equipment 26 51 00 - Led Luminaires Division 31 - Site Clearing 31 10 00 - Site Clearing 31 20 00 - Earth Moving Division 32 - Flexible Paving 32 12 00 - Flexible Paving 32 13 00 - Rigid Paving 32 17 23 - Pavement Markings 32 1723.13 - Painted Pavement Markings Division 33 - Water Utility Transmission and Distribution 33 14 00 - Water Utility Transmission and Distribution 33 30 00 - Sanitary Sewerage 33 42 00 - Storm Water Conveyance SECTION 03 38 16 - UNBONDED POST-TENSIONED CONCRETE PART 1 - GENERAL 1.1 SECTION INCLUDES A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 DEFINITIONS: A. Aggressive Environment is an environment in which structures are exposed to direct or indirect applications of the following : 1. Deicing Chemicals 2. Conditions where stressing pockets are wetted or directly in contact with soils. B. Parking Garage shall be considered as structures operating in an aggressive environment and therefore its components shall be made watertight and protected against corrosion. 1.3 REFERENCES A. ASTM A416, "Specification for Uncoated Seven-Wire Stress-Relieved Strand for Prestressed Concrete," including supplement, "Low Relaxation Strand''. B. ASTM E328, "Recommended Practice for Stress-Relaxation Tests for Materials and Structures". C. AWS D1 .1, "Structural Welding Code - Steel''. D. AWS D1 .4, "Structural Welding Code-Reinforcing Steel''. E. CRSI MSP-2, "Manual of Standard Practice". F. PTI, "Guide Specifications for Post-Tensioning Materials." G. PTI, "Performance Specification for Corrosion Preventative Coating''. H. PTI, "Specification for Unbonded Single Strand Tendons''. I. PTI, "Field Procedures Manual for Unbonded Single Strand Tendons''. 1.4 PRE-INSTALLATION CONFERENCE A. Discuss pour sequencing, pour strips, tendon locations, sleeve locations, inspections, tendon encapsulating material and procedures, jacking procedures, recording of elongations and cautions regarding cutting or core drilling. B. Require representatives of each entity directly concerned with the cast-in-place concrete and post-tensioning installation to attend: 1. Contractor's superintendent; 2. Independent testing and inspection agencies; 3. Ready-mix concrete producer; 4. Post-tensioning installer; 5. Concrete subcontractor. UNBONDED POST-TENSIONED CONCRETE 03 38 16-1 1.5 SUBMITTAL$ A. Product Data: Provide data on concrete design mix, admixtures, and other proprietary materials used. 1. Mill tests for prestressing steel and anchorage devices. 2. Typical stress-strain curves for prestressing steel. 3. Tensile strength and elongation at rupture for prestressing steel. 4. Sample of encapsulated anchorage assemblies. B. Shop Drawings: Submit shop drawings for the work in this Section sealed by a Structural Engineer who is legally qualified to practice in jurisdiction where project is located. Indicate layout, tendon sizes, grouping, spacing, placing sequences, corrosion preventive coating, sheathing, anchorage details, supports and locations, tendon supports, accessories, clearances required for jack, and pressure plate stresses. 1. Describe tensioning sequences; type of jack; pressure monitoring device; tendon cut­ off procedures; method of sealing tendons; encapsulated connections between tendons and anchorages; jacking force and jacking pressures; and maximum temporary jacking force and jacking pressures. 2. Describe pour sequences indicating pour strips (ii required), and splices and couplers (ii required). C. Sealed calculations, prepared under supervision of qualified, professional, legally registered Structural Engineer in jurisdiction where project is located, of losses due to anchorage seating, elastic shortening, creep, shrinkage, relaxation, friction, and wobble, used to determine tendon sizes and number. Friction and wobble coefficients shall be in accordance with PTI recommended values unless test data submitted to substantiate lower values. D. Certificate: Certify that tendon strength characteristics meet or exceed specified requirements. E. Project Record Documents: Record actual locations of tendons; stressing sequence and tension loads established, and theoretical and actual elongation of tendons and jack and gauge identification numbers on approved forms. 1. Submit copies of post-tensioning records promptly upon completion of each member or slab tensioning run. 2. Do not cut or cover tendon ends until Contractor has received Engineer's written review of post-tensioning records. 1.6 QUALITY ASSURANCE A. All work shall conform to Post Tensioning Institute (PTI) Manual standards entitled "Specification for Unbonded Single Strand Tendons for Minimum Requirements". B. Work shall conform to requirements of ACI 301, ACI 318, and CASI MSP-2 except where more stringent requirements are shown on Drawings or specified in this Section. C. Welders and welding procedures shall conform to requirements of AWS D1 .1 and AWS D1 .4. Welding prohibited except where shown on Drawings or accepted in writing by Owner. UNBONDED POST-TENSIONED CONCRETE 03 38 16-2 1. Welders shall be qualified within previous 12 months in accordance with AWS 82.1. D. Inspection of reinforcing steel and post-tensioning reinforcement is required. Inspection shall be conducted by inspection agency employed by Owner and approved by Engineer. Inspectors shall have completed a minimum of 5 years of inspecting post-tensioned structures of which 3 must be parking garages. Prior to placing concrete, inspector shall provide reports in accepted format with copy to Owner and Architect. Inspection agency has authority to reject reinforcement not meeting Contract Documents and accepted Shop Drawings. E. Post-tensioning supplier shall have successfully provided all materials for not less than 5 previous post-tensioning installations in parking structures with structural system similar to this project in previous 5 years. F. Installer shall have successfully performed not less than 5 previous post-tensioning installations in parking structures with structural system similar to this project in previous 5 years. G. Post-tension supplier shall have superintendent periodically on site to supervise and ensure consistent and correct installation. H. All post-tensioning Work shall be under immediate control of person experienced in this Work. Exercise close check and rigid control of all operations as necessary for full compliance with all requirements. Post-tensioning Contractor's superintendent assigned to Project shall have supervised 5 prior parking garage projects of similar magnitude and design, shall be present during all placing and post-tensioning operations, shall exercise close check and control of all operations as required for full conformance to requirements. Superintendent shall be acceptable to Owner. Superintendent's failure to ensure full compliance with Specification will result in removal from Project. I. Workers performing installation shall be PTI Certified. J. Contractor: Keep a copy of PTI "Field Procedures Manual for Unbonded Single Strand Tendons" on site. 1.7 DELIVERY, STORAGE, AND HANDLING A. Supplier: Assign all post-tensioning tendons within every group or in same member heat number and tag accordingly. B. Supplier: Package each tendon coil at source in heavy plastic, sealed shut, to prevent physical damage to tendon during transportation and storage and to positively protect strand from moisture and corrosion during transit and storage. Use heavy padding such as carpeting to protect sheathing from being cut by binding materials. Use filament tape, not wire binding. Cardboard unacceptable. No part of any tendon shall ever be unprotected against moisture. Corrosion inhibitor coated bare strand unacceptable. C. Contractor: Inspect