PROJECT MANUAL ISSUE FOR BID. ST. LOUIS ZOO River s Edge Fence Modification

Transcription

1 PROJECT MANUAL ISSUE FOR BID ST. LOUIS ZOO River s Edge Fence Modification Issue Date: August 2018

2 River s Edge Fence Modification St. Louis Zoo, One Government Drive, St. Louis, MO TABLE OF CONTENTS 1. SPECIFICATIONS a Metal Fabrication b Heavy Timber c Staining and Transparent Finish d Rope and Netting 2. DRAWINGS a. Sheet A101 b. Sheet A102 c. Sheet A103 TABLE OF CONTENTS 1

3 SECTION GENERAL METAL FABRICATIONS 1.1. RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General Contract Conditions and Division 1 Specification Sections, apply to this Section SUMMARY A. This Section includes the following: 1. Miscellaneous metal fabrications. 2. Steel shapes. 3. Galvanized steel shapes. 4. Loose steel lintels. 5. Shelf angles. 6. Steel framing and supports for countertops. B. Related Sections include the following: 1. Division 05 Section "Structural Steel" for structural-steel framing system components. 2. Division 05 Section "Metal Stairs" for metal-framed stairs with metal pan, metal plate, or grating treads. 3. Division 05 Section "Metal Railings" for metal pipe and tube handrails and railings. 4. Division 06 Section "Rough Carpentry" for metal framing anchors and other rough hardware. 5. Division 23 Mechanical for secondary bracing of overhead hanging elements in accordance with this Section. 6. Division 26 Electrical for secondary bracing of overhead hanging elements in accordance with this Section SUBMITTALS A. Shop Drawings: Detail fabrication and erection of each metal fabrication indicated. Include plans, elevations, sections, and details of metal fabrications and their connections. Show anchorage and accessory items. 1. Provide templates for anchors and bolts specified for installation under other Sections. B. Structural Calculations: Provide full engineering calculations for elements required by this section to be structurally designed by the contractor. Saint Louis Zoo Metal Fabrications

4 1. Calculations shall be signed and sealed by a qualified structural engineer registered in the state in which the project is located. C. Welder s certifications as required in Quality Assurance in this section QUALITY ASSURANCE A. Fabricator Qualifications: A firm experienced in producing metal fabrications similar to those indicated for this Project and with a record of successful in-service performance, as well as sufficient production capacity to produce required units. B. Welding: Qualify procedures and personnel according to the following: 1. AWS D1.1, "Structural Welding Code--Steel." 2. AWS D1.3, "Structural Welding Code--Sheet Steel." 3. Certify that each welder has satisfactorily passed AWS qualification tests for welding processes involved and, if pertinent, has undergone recertification PROJECT CONDITIONS A. Field Measurements: Where metal fabrications are indicated to fit walls and other construction, verify dimensions by field measurements before fabrication and indicate measurements on Shop Drawings. Coordinate fabrication schedule with construction progress to avoid delaying the Work. 1. Established Dimensions: Where field measurements cannot be made without delaying the Work, establish dimensions and proceed with fabricating metal fabrications without field measurements. Coordinate construction to ensure that actual dimensions correspond to established dimensions. Allow for trimming and fitting COORDINATION A. Coordinate installation of anchorages for metal fabrications. 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. 2 PRODUCTS 2.1. METALS, GENERAL A. Metal Surfaces, General: For metal fabrications exposed to view in the completed Work, provide materials with smooth, flat surfaces without blemishes. Do not use materials with exposed pitting, seam marks, roller marks, rolled trade names, or roughness FERROUS METALS A. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M. B. Rolled-Steel Floor Plate: ASTM A 786/A 786M, rolled from plate complying with ASTM A 36/A 36M or ASTM A 283/A 283M, Grade C or D. C. Steel Tubing: Cold-formed steel tubing complying with ASTM A 500. Saint Louis Zoo Metal Fabrications

5 D. Steel Pipe: ASTM A 53, standard weight (Schedule 40), unless another weight is indicated or required by structural loads. E. Slotted Channel Framing: Cold-formed metal channels with flange edges returned toward web and with 9/16-inch wide slotted holes in webs at 2 inches o.c 1. Width of Channels: 1-5/8 inches. 2. Depth of Channels: 1-5/8 inches. 3. Metal and Thickness: Galvanized steel complying with ASTM A 653/A 653M, structural quality, Grade 33 (Grade 230), with G90 (Z275) coating; inch nominal thickness. 4. Metal and Thickness: Uncoated steel complying with ASTM A 570, Grade 33; inch minimum thickness. 5. Finish: Rust-inhibitive, baked-on, acrylic enamel. F. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded PAINT A. Shop Primers: Provide primers that comply with Division 9 Section "Painting." B. Shop Primer for Ferrous Metal: Organic zinc-rich primer, 'complying with SSPC-Paint 20 and compatible with topcoat. 1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, the following: 2. Products: Subject to compliance with requirements, provide one of the following: a. Carboline 621; Carboline Company. b. Aquapon Zinc-Rich Primer ; PPG Industries, Inc. c. Tneme-Zinc 90-97; Tnemec Company, Inc. C. Galvanizing Repair Paint: High-zinc-dust-content paint for regalvanizing welds in steel, complying with SSPC-Paint 20. D. Paint: Cold-applied asphalt mastic complying with SSPC-Paint 12, except containing no asbestos fibers, or cold-applied asphalt emulsion complying with ASTM D FASTENERS A. General: Provide Type 304 or 316L stainless-steel fasteners for exterior use and zinc-plated fasteners with coating complying with ASTM B 633, Class Fe/Zn 5, where built into exterior walls. Select fasteners for type, grade, and class required. B. 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. Saint Louis Zoo Metal Fabrications

6 C. Anchor Bolts: ASTM F 1554, Grade 36. D. Machine Screws: ASME B (ASME B18.6.7M). E. Lag Bolts: ASME B (ASME B M). F. Forged Eye-Bolts: Drop forged steel ASTM C 1023 with a galvanized finish. Threaded bolts or lag bolts as manufactured by Chicago Hardware. G. Plain Washers: Round, carbon steel, ASME B (ASME B18.22M). H. Lock Washers: Helical, spring type, carbon steel, ASME B (ASME B M). I. Expansion Anchors: Anchor bolt and sleeve assembly of material indicated below with capability to sustain, without failure, a load equal to six times the load imposed when installed in unit masonry and equal to four times the load imposed when installed in concrete, as determined by testing per ASTM E 488, conducted by a qualified independent testing agency. J. Toggle Bolts: FS FF-B-588, tumble-wing type, class and style as needed GROUT A. Nonshrink, Metallic Grout: Factory-packaged, ferrous-aggregate grout complying with ASTM C 1107, specifically recommended by manufacturer for heavy-duty loading applications FABRICATION, GENERAL A. Shop Assembly: Preassemble items in shop to greatest extent possible to minimize field splicing and assembly. 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. Shear and punch metals cleanly and accurately. Remove burrs. C. Ease exposed edges to a radius of approximately 1/32 inch (1 mm), unless otherwise indicated. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise impairing work. D. 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 surface. E. Provide for anchorage of type indicated; coordinate with supporting structure. Fabricate and space anchoring devices to secure metal fabrications rigidly in place and to support indicated loads. Saint Louis Zoo Metal Fabrications

7 F. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws, and similar items. G. Fabricate joints that will be exposed to weather in a manner to exclude water, or provide weep holes where water may accumulate. H. Allow for thermal movement resulting from the following maximum change (range) in ambient and surface temperatures by preventing buckling, opening up of joints, overstressing of components, failure of connections, and other detrimental effects. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss. 1. Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces. I. Form exposed work true to line and level with accurate angles and surfaces and straight sharp edges. J. Remove sharp or rough areas on exposed traffic surfaces. K. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners where possible. Use exposed fasteners of type indicated or, if not indicated, Phillips flat head (countersunk) screws or bolts. Locate joints where least conspicuous 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. B. Galvanize plates after fabrication LOOSE STEEL LINTELS A. Fabricate loose structural-steel lintels from steel angles and shapes of size indicated for openings and recesses in masonry walls and partitions at locations indicated. B. Weld adjoining members together to form a single unit where indicated. C. Size loose lintels to provide bearing length at each side of openings equal to one-twelfth of clear span, but not less than 8 inches (200 mm), unless otherwise indicated. D. Galvanize loose steel lintels located in exterior walls 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. B. For cavity walls, provide vertical channel brackets to support angles from backup masonry and concrete. Align expansion joints in angles with indicated control and expansion joints in cavity wall exterior wythe. C. Galvanize shelf angles to be installed in exterior walls. Saint Louis Zoo Metal Fabrications

8 D. Furnish wedge-type concrete inserts, complete with fasteners, to attach shelf angles to cast-in- place concrete MISCELLANEOUS FRAMING AND SUPPORTS A. Provide steel framing and supports that are not a part of structural-steel framework as necessary to complete the Work. B. General: Provide steel framing and supports indicated and as necessary to complete the Work. C. Fabricate units from structural-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 retained by framing and supports. Cut, drill, and tap units to receive hardware, hangers, and similar items. 1. Fabricate units from slotted channel framing where indicated. 2. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel strap anchors 1-1/4 inches (32 mm) wide by 1/4 inch (6 mm) thick by 8 inches (200 mm) long at 24 inches (600 mm) o.c., unless otherwise indicated. 3. Furnish inserts if units must be installed after concrete is placed. D. Fabricate supports for operable partitions as follows: 1. Beams: Continuous steel shapes of sizes indicated with attached bearing plates, anchors, and braces as indicated. Drill bottom flanges of beams to receive partition track hanger rods; locate holes where indicated on operable partition Shop Drawings. E. Fabricate steel girders for wood frame construction from continuous steel shapes of sizes indicated. 1. Provide bearing plates welded to beams where indicated. 2. Drill girders and plates for field-bolted connections where indicated. 3. Where wood nailers are attached to girders with bolts or lag screws, drill holes at 24 inches (600 mm) o.c. F. Fabricate steel pipe columns for supporting wood frame construction from steel pipe with steel baseplates and top plates as indicated. Drill 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. 1. Unless otherwise indicated, provide 1/2-inch (12-mm) baseplates with four 5/8-inch (16- mm) anchor bolts and 1/4-inch (6-mm) top plates. G. Galvanize miscellaneous framing and supports unless otherwise indicated MISCELLANEOUS STEEL TRIM A. Unless otherwise indicated, fabricate units from structural-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. Saint Louis Zoo Metal Fabrications

9 B. Provide cutouts, fittings, and anchorages as needed to coordinate assembly and installation with other work. Provide anchors, welded to trim, for embedding in concrete or masonry construction, spaced not more than 6 inches (150 mm) from each end, 6 inches (150 mm) from comers, and 24 inches (600 mm) o.c., unless otherwise indicated. C. Galvanize miscellaneous steel trim in the following locations: 1. Exterior. 2. Interior, where indicated. 3. Galvanize assemblies after fabrication to the fullest extent possible with zinc coating by the hot dip process PIPE BOLLARDS A. Fabricate pipe bollards from Schedule 40 steel pipe in sizes shown on drawings. 1. Galvanize, G90, after fabrication 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 STEEL AND IRON FINISHES A. Galvanizing: Hot-dip galvanize items as indicated to comply with applicable standard listed below: 1. ASTM A 123, for galvanizing steel and iron products. 2. ASTM A 153/A 153M, for galvanizing steel and iron hardware. B. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to comply with minimum requirements indicated below for SSPC surface-preparation specifications and environmental exposure conditions of installed metal fabrications: 1. Exteriors (SSPC Zone 113): SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning." a. All exterior steel and iron shall be galvanized prior to painting. 2. Interiors (SSPC Zone 1A): SSPC-SP 3, "Power Tool Cleaning." C. Apply shop primer to uncoated surfaces of metal fabrications, except those with galvanized finishes and those to be embedded in concrete, sprayed-on fireproofing, or masonry, unless otherwise indicated. Comply with SSPC-PA 1, "Paint Application Specification No. 1l," for shop painting. 3 EXECUTION 1. Stripe paint corners, crevices, bolts, welds, and sharp edges. Saint Louis Zoo Metal Fabrications

10 3.1. INSTALLATION, GENERAL A. Fastening to In-Place Construction: Provide anchorage devices and fasteners where necessary for securing metal fabrications to in-place construction. Include threaded fasteners for concrete and masonry inserts, toggle bolts, through-bolts, lag bolts, wood screws, and other connectors. B. 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. C. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction. D. 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. E. 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. F. Corrosion Protection: Coat concealed surfaces of aluminum that will come into contact with grout, concrete, masonry, wood, or dissimilar metals with a heavy coat of bituminous paint SETTING 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. 1. Use nonshrink grout, either metallic or nonmetallic, in concealed locations where not exposed to moisture; use nonshrink, nonmetallic grout in exposed locations, unless otherwise indicated. 2. Pack grout solidly between bearing surfaces and plates to ensure that no voids remain INSTALLING MISCELLANEOUS FRAMING AND SUPPORTS Saint Louis Zoo Metal Fabrications

11 A. General: Install framing and supports to comply with requirements of items being supported, including manufacturers' written instructions and requirements indicated on Shop Drawings, if any. 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 at girders supported on concrete or masonry, install as specified above for setting and grouting bearing and leveling plates. D. Install pipe columns on concrete footings with grouted baseplates. Position and grout column baseplates as specified above for setting and grouting bearing and leveling plates. 1. Do not grout baseplates of columns supporting steel girders until girders are installed and leveled INSTALLING NOSINGS, TREADS, AND THRESHOLDS A. Install with anchorage system indicated to comply with manufacturer's written instructions. B. Center nosings on tread widths. C. For nosings embedded in concrete steps or curbs, align nosings flush with riser faces and level with tread surfaces. D. Seal thresholds exposed to exterior with elastomeric sealant complying with Division 7 Section "Joint Sealants" to provide a watertight installation INSTALLING PIPE BOLLARDS A. Set bollards in concrete as shown on drawings. B. Fill bollards solidly with concrete, mounding top surface ADJUSTING AND CLEANING A. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas of shop paint, and paint exposed areas with the same material as used for shop painting to comply with SSPC-PA 1 for touching up shop-painted surfaces. 1. Apply by brush or spray to provide a minimum 2.0-mil (0.05-mm) dry film thickness. B. Touchup Painting: Cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint are specified in Division 9 Section "Painting." C. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A 780. END OF SECTION Saint Louis Zoo Metal Fabrications

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13 SECTION HEAVY TIMBER CONSTRUCTION 1. GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes the following: 1. Beams, girders, and purlins. 2. Columns and posts. 3. Timber trusses. 1.3 DEFINITIONS A. Heavy Timber: Rectangular solid-wood framing members 5 inches nominal (114 mm actual) and larger in both dimensions. 1.4 SUBMITTALS A. Product Data: For heavy timber and accessories. Include installation instructions and data on fabrication and treatment processes. B. Shop Drawings: Show layout of heavy timber system, full dimensions of each member, and details of connections. C. Samples: Full width and depth, 24 inches (600 mm) long, showing the range of variation to be expected in appearance of wood products including treatment and finishing. D. Certificates of Inspection: Issued by lumber grading agency for exposed heavy timber not marked with grade stamp. E. Wood-Treatment Certificates: Signed by wood treater certifying that treatment processes comply with requirements. 1.5 QUALITY ASSURANCE A. Installer Qualifications: Engage an experienced installer who has completed heavy timber construction similar in material, design, and extent to that indicated for this Project and with a record of successful inservice performance. B. Timber Standard: Comply with AITC 108, "Standard for Heavy Timber Construction." 1.6 DELIVERY, STORAGE, AND HANDLING Saint Louis Zoo Heavy Timber

14 A. Schedule delivery of heavy timber to avoid extended on-site storage and to avoid delaying the Work. B. Keep materials under cover and dry. Protect from weather and contact with damp or wet surfaces. Provide for air circulation within and around stacks and under temporary coverings. 2. PRODUCTS 2.1 HEAVY TIMBER, GENERAL A. General: Comply with DOC PS 20, "American Softwood Lumber Standard," and with applicable grading rules of inspection agencies certified by ALSC's Board of Review. B. Inspection Agencies: Inspection agencies, and the abbreviations used to reference them, include the following: 1. NELMA - Northeastern Lumber Manufacturers Association. 2. NHLA - National Hardwood Lumber Association. 3. NLGA - National Lumber Grades Authority (Canada). 4. RIS - Redwood Inspection Service. 5. SPIB - Southern Pine Inspection Bureau. 6. WCLIB - West Coast Lumber Inspection Bureau. 7. WWPA - Western Wood Products Association. C. Grade Stamps: Provide heavy timber with each piece factory marked with grade stamp of inspection agency evidencing compliance with grading rule requirements and identifying grading agency, species, grade, moisture content at time of surfacing, and mill. 1. For exposed heavy timber, apply grade stamps to surfaces that will not be exposed to view or omit grade stamps and provide certificates of inspection issued by inspection agency. D. Preservative Treatment: Pressure treat heavy timber with waterborne solution to comply with AWPA C2 for aboveground use. 1. After treatment, redry heavy timber to 19 percent maximum moisture content. 2. Use preservative solution with water-repellent additive. 3. Use preservative solution without water repellents or other substances that might interfere with application of indicated finishes. 4. Do not use chemicals containing arsenic or chromium. 2.2 TIMBER FRAMING A. Timber Species: Douglas fir-larch or Douglas fir-larch (North). B. Timber Grade: No. 2 or better. 1. Structural Properties: As indicated on Drawings. C. Moisture Content: Provide timber with 19 percent maximum moisture content at time of dressing or timber that is unseasoned at time of dressing but with 19 percent maximum moisture content at time of installation. D. Dressing: Provide dressed timber (S4S), unless otherwise indicated. E. End Sealer: Manufacturer's standard, transparent, colorless wood sealer that is effective in retarding the transmission of moisture at cross-grain cuts and is compatible with indicated finish. Saint Louis Zoo Heavy Timber

15 F. Penetrating Sealer: Manufacturer's standard, transparent, penetrating wood sealer that is compatible with indicated finish. G. Connectors, Anchors, and Accessories: Fabricate from structural-steel shapes, plates, and bars complying with ASTM A 36 (ASTM A 36M); steel bars complying with ASTM A 575, Grade M 1020; and hot-rolled steel sheet complying with ASTM A 570 (ASTM A 570M), Grade Fabricate beam seats with 3/8-inch- (9.5-mm-) steel bearing plates, 3/4-inch- (19-mm-) diameterby-12-inch- (300-mm-) long deformed bar anchors, and inch (6-mm) side plates. 2. Fabricate beam hangers with inch (4.6-mm) stirrups and inch (6-mm) top plates. 3. Fabricate strap ties from 3-inch- (75-mm-) wide, inch (6-mm) steel sheet. 4. Fabricate tie rods from round steel bars with upset threads connected with forged-steel turnbuckles complying with ASTM A 668 (ASTM A 668M). 5. Provide bolts, 3/4 inch (19 mm), unless otherwise indicated, complying with ASTM A 307, Grade A (ASTM F 568M, Property Class 4.6); nuts complying with ASTM A 563 (ASTM A 563M); and, where indicated, flat washers. 6. Finish each assembly and fastener with rust-inhibitive primer, 2-mil (0.05-mm) dry film thickness for interior applications. 7. Hot-dip galvanize each assembly and fastener after fabrication to comply with ASTM A 123 or ASTM A 153 (ASTM A 153M) for exterior applications. 8. Finish paint all steel connection material black per Architect. 2.3 FABRICATION A. Shop fabricate members by cutting and restoring exposed surfaces to match specified surfacing. Predrill for fasteners and assembly of units. 1. Machine sand exposed surfaces to remove planing or surfacing marks, finishing with No. 120 grit sandpaper. 2. Where treated timber is indicated, fabricate members (cutting, drilling, surfacing, and sanding) before treatment to the greatest extent possible. Where fabrication must be done after treatment, apply a field-treatment preservative to comply with AWPA M4. B. Seal Coat: After fabricating and surfacing each unit, apply a saturation coat of penetrating sealer on surfaces of each unit, except for treated wood where the treatment included a water repellent. 3. EXECUTION 3.1 INSTALLATION A. General: Erect timber framing true and plumb. Provide temporary bracing to maintain lines and levels until permanent supporting members are in place. 1. Handle and temporarily support heavy timber to prevent surface damage, compression, and other effects that might interfere with indicated finish. B. Fit timber framing by cutting and restoring exposed surfaces to match specified surfacing. Predrill for fasteners and assembly of units. 1. Machine sand exposed surfaces to remove planing or surfacing marks, finishing with No. 120 grit sandpaper. 2. Coat crosscuts with end sealer. 3. Where treated members must be cut during erection, apply a field-treatment preservative to comply with AWPA M4. C. Cutting: Avoid extra cutting after fabrication. Where field fitting is unavoidable, comply with requirements for shop fabrication. Saint Louis Zoo Heavy Timber

16 1. Where treated members must be cut during erection, apply a field-treatment preservative to comply with AWPA M4. D. Install steel connectors, anchors, and accessories as indicated. 3.2 ADJUSTING AND CLEANING A. Repair damaged surfaces and finishes after completing erection. Replace damaged heavy timber if repairs are not approved by Architect. END OF SECTION Saint Louis Zoo Heavy Timber

17 SECTION GENERAL STAINING AND TRANSPARENT FINISHING 1.1. SECTION INCLUDES A. Surface preparation and field application of paints and stains on exposed substrates, which are not factory finished REFERENCES ASTM D 16 - Standard Terminology for Paint, Coatings, Materials, and Applications; 1998b DEFINITIONS A. Conform to definitions of terms in ASTM D 16 in interpreting requirements of this specification section SUBMITTALS A. See Division 01 - Submittals, for submittal procedures. B. Product Data: Provide manufacturer's printed product data on all coatings specified, including preparation and application instructions. C. Verification Samples: Provide two samples of not less than 12 inches (300 mm) square illustrating selected colors and textures for each color specified. 1. Prepare samples to show bare, prepared surface and each successive coat. 2. Label each sample with coating name and number DELIVERY, STORAGE, AND HANDLING A. Deliver products to site in sealed and labeled containers. Labels shall include manufacturer's name, type of coating, brand name, lot number, estimated coverage, surface preparation requirements, drying time, cleanup instructions, color designation, and instructions for mixing. B. Store paint products in covered, ventilated area at minimum ambient temperature of 45 degrees F (7 degrees C) and maximum ambient temperature of 90 degrees F (32 degrees C) ENVIRONMENTAL REQUIREMENTS A. All products shall be in compliance with EPA and the State of California regulations for VOC and lead content. B. Do not apply products of this section outside acceptable range of conditions as specified by paint manufacturer. C. Do not apply coatings during rain or snow or when humidity is in excess of manufacturer's recommended limit EXTRA MATERIALS Saint Louis Zoo Staining and Transparent Finishing

18 A. See Division 01 for additional provisions. B. Deliver to Owner 1 gallon (4 liters) of each finish paint in each color required for Project; mark each container with color and locations where paint was used, without obscuring manufacturer's label QALITY ASSURANCE A. Owner's Representative might request inspection and approval of each surface to be painted and of each coat of paint before application of succeeding coat. If this is required, notify Owner's Representative when a prepared surface and a particular coat is ready for inspection. B. Should the dry film thickness of paint be less than 75 percent of the specified minimum, the Contractor will be required to recoat the work in question at his own expense. C. Paints shall not contain lead as an ingredient; refer to General Contract Conditions 1.9. SCOPE A. The following list includes, but does not limit, the items to be prepared, primed and/or painted, except as otherwise noted: 2. PRODUCTS 1. Interior and exterior exposed steel and miscellaneous ferrous metal items: columns and steel jackets, beams, trusses, purlins, girts, frames, plate platforms, stairs, ladders, railings, curbs, trench and pit frames and covers, guard posts, manhole frames and covers, hydrants, post indicators, hose houses, and all brackets, supports, hangers and fasteners for mechanical, piping, instrumentation and electrical facilities. 2. Exposed electrical conduits in Division Exposed Fire Protection piping and installations Division 23, unless scheduled. 4. Exposed mechanical ducts in Division The above items in galvanized steel are included only where scheduled MANUFACTURER A. Provide products listed in Schedule at end of the section, manufactured by Olympic. B. Substitutions: See Division COLORS AND SHEEN A. Colors and Sheen: Refer to Material Legend on drawings MATERIALS A. Coatings: Ready mixed, except for field catalyzed coatings; having good flow and brushing properties and consistent drying or curing behavior, free of sags and streaks. Saint Louis Zoo Staining and Transparent Finishing

19 B. Accessory Materials: Paint thinners and other materials recommended by coatings manufacturer as necessary to achieve finishes specified. C. Patching and Surface Preparation: Latex fillers as recommended by coatings manufacturer. 3. EXECUTION 3.1. EXAMINATION A. Verify that site environmental conditions are appropriate and substrates are in proper condition to receive work of this section. B. Verify that shop applied primers are compatible with specified finish coats. C. Measure moisture content of surfaces using an electronic moisture meter. Do not begin application of coatings unless moisture content of surfaces is below the following maximum values: 1. Wood surfaces: 19 percent PREPARATION A. Remove or mask electrical plates, hardware, light fixture trim, and similar fittings prior to beginning painting operations. B. Correct defects and clean surfaces affecting work of this section. Remove existing coatings that are flaking or otherwise in unacceptable condition to receive paint. C. Seal with shellac or other coating acceptable to paint manufacturer any marks or defects that might bleed through paint finishes. D. Remove mildew from impervious surfaces by scrubbing with solution of trisodium phosphate and bleach. Rinse with clean water and allow substrate to dry. E. Wood for Opaque Finish: Remove dirt and foreign matter. Patch knots, pitch pockets, and other surface imperfections with patching compound and seal with sealer recommended by paint manufacturer. F. Wood for Transparent Finish: Remove dirt and foreign matter. Seal knots and pitch pockets with sealer recommended by stain manufacturer. Fill nail holes and other surface imperfections with tinted calking compound after sealer has been applied. G. Galvanized Metal Surfaces: Remove oils and wash with solvent APPLICATION A. Apply paint products in accordance with manufacturer's printed instructions. Do not apply coatings to surfaces that are not dry. B. Apply each coat to uniform thickness and finish, with each coat slightly darker than preceding coat. Allow each coat to dry thoroughly before applying next coat. C. Sand wood and metal surfaces lightly between coats. Vacuum surfaces free of loose particles prior to application of next coat. Saint Louis Zoo Staining and Transparent Finishing

20 3.4. CLEANING AND PROTECTION A. Keep project premises free of painting-related debris. Collect material that may constitute a fire hazard, place in closed metal containers, and remove daily from site. B. Protect work adjacent to painting operations from paint spatters and spills. Immediately remove paint that falls on finished surfaces not scheduled to receive paint, using materials and techniques that will not damage affected surfaces SCHEDULE A. Galvanized Metal and carbon steel where high performance is required: (Do not paint galvalume surfaces.) 1. Solvent clean galvanized surfaces that have not weathered at least six months prior to beginning painting operations. B. Wood Substrates, Heavy Timber Framing, Wood Siding: 1. Opaque Stain, Exterior Acrylic Solid Color: a. 2 coats of WoodScapes House Stain, A 15 series. C. Wood Substrates, Wood Doors / Interior: 1. Interior Polyurethane Satin Varnish: a. Primer: Interior Quick Dry Sanding Sealer / Varnish, , WOODPRIDE / SS Varnish b. Top Coat: 2 coats of , WOODPRIDE 1902 D. Interior Floor Sealer 1. Epoxy Pre-Primer and Penetrating Sealer: a. 1 coat of Pre-Prime 167, 1-2 mills film application. END OF SECTION Saint Louis Zoo Staining and Transparent Finishing

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22 SECTION ROPE AND NETTING 1. GENERAL 1.1. SUMMARY A. Netting associated with handrails. B. Accessories. C. Ropes for decorative tied connections associated with heavy timber construction RELATED SECTIONS A. Division 05 - Handrails and Railings: Ropes for handrails. B. Division 06 - Rough Carpentry: Dimensional lumber associated with netting. C. Division 06 - Heavy Timber: Mounting substrate for netting panels REFERENCE STANDARDS A. SAE AS27444 (SAE International): Net, Cargo Tiedown, Pallets, HCU-7/E, HCU-15/C, HCU- 11/C, and HCU-16/C, 01-Nov B. ISO (International Organization for Standardization (ISO): Air cargo equipment - Interline pallet nets, 01-Jan C. ASTM A (ASTM International): Standard Specification for Stainless Steel Rope Wire; Document Number: 01-Jan D. ASTM A 167, commercial quality type #304 stainless steel SUBMITTALS A. Shop drawings: Indicate dimensions, rope panel sizes, fabrication details, attachment provisions, finishes and coordination requirements with adjacent work. B. Show all substrate materials and anchorage. C. Provide samples showing all rope materials and accessories to be used, sample panel 24 x 24 inches. D. Submit Manufacturer s Warranty PERFORMANCE REQUIREMENTS A. Engineer netting panels in accordance with the design winds and design loads on structures as indicated in the local building code and ASCE 7-88, Minimum Design Loads for Buildings and Other Structures. Saint Louis Zoo ROPE AND NETTING

23 1. Engineer netting panels to prevent the uplifting or deflections and do not allow them to protrude with any of the netting components into the ride envelope or less than 68 measured to the floor if they are installed above the areas accessible by the Park guests. B. Provide rope mesh strength testing report: Dynamic Drop Test: 6,000 Ft.-Ibs, etc. C. Certification: The manufacturer shall supply certification that the product meets or exceeds all requirements here within. Certification indicating date, place, and test procedures shall be supplied on request DELIVERY, STORAGE AND HANDLING A. Deliver no components to project site until areas are ready for installation. Store components indoors in original shipment packaging prior to installation. B. All structural nuts and bolts shall arrive on site in sealed container/package. They must meet the required ASTM specification standards and be domestic grade. The special inspector must verify the bolts meet both requirements before they will be allowed to be used. C. Package materials to prevent damage to components during shipment. D. Handle materials to prevent damage to finished surfaces. E. Provide protective coverings to prevent physical damage or staining following installation for duration of project QUALITY ASSURANCE A. Manufacturer Qualifications: Obtain from a single manufacturer. B. Mock-up: Prior to installation of work of this section, prepare mock-ups showing wrapped connections as shown on the drawings at locations acceptable to the owner, illustrating the range of workmanship to be expected in the completed work. C. Prepare mock-ups using different rope sizes as indicated on drawings so that the owner can review and approve the final appearance prior to fabrication and installation. 1. Prior to installation of work of this section, submit Certification of Structural properties to verify conformance with applicable building code WARRANTY A. Provide manufacturer s 5 year warranty against defects in materials. Warranty shall provide material and labor to repair or replace defective materials. Damage caused by physical or chemical abuse or damage from excessive heat will not be warranted. 2. PRODUCTS A. Base For Design: Sinco, Inc., 701 Middle Street, Middletown, CT 06457;Tel : ; Toll Free : ; Fax: ; Web: B. Materials: 1. Border Rope: a. Nylon Polyamide Fiber Size: 3/8" b. Type: 3-strand Twist, Soft Lay Saint Louis Zoo ROPE AND NETTING

24 c. Tensile Breaking Strength: 3650 Lb. 2. Ropes for Decorative Tied Connections: a. Nylon Polyamide Fiber Size: 1" b. Type: 7-strand Twist, Soft Lay C. See drawings where all of the above are applicable CHEMICAL TREATMENT OF ROPE PRODUCTS A. Dye: A treatment of the netting in a mixture of dye and water for aesthetic interior color applications. Note: "dye only" is not colorfast and therefore is not appropriate for exterior use. B. Weather Seal: Weatherkote: (also known as "B" treatment) a treatment of the netting in a mixture of latex, carbon black, and water, for resistance to ultra-violet light, moisture, and abrasion ACCESSORIES A. All metal accessories to be 316L stainless steel for heavy duty use. B. Stainless steel cables: Multi-strand twisted cable, thickness appropriate to application. C. Turnbuckles: Cast stainless steel, size and tension strength appropriate to application, but minimum 10 inches in length. 1. All eye end fittings to be round. 2. Stub end fittings are forged stainless steel. 3. Each jaw end fitting has one removable pin and one cotter ring. D. Stainless Steel D-shackles with safety pins: round pin secured with a nut and a cotter pin. E. Heavy duty thimbles, size matching the diameter of the rope, shall meet Fed. Spec. FF-T-276b. F. Other accessories or hardware required to accomplish the work FABRICATION A. Provide all necessary attachments to work by others for points of connection indicated in the documents. 1. Verify that the work provided by others has the bearing capacity for the loads imposed by this work. 2. Installation of attachments might require drilling and installation of fittings into steel or heavy timber components, where others do not provide mounting brackets. PART 2 - EXECUTION 2.01 EXAMINATION A. Verify that conditions conform to requirements of contract documents. B. Correct unsatisfactory substrate conditions before start of panel system installation INSTALLATION A. Anchors and fasteners shall be appropriate for the mounting substrate. B. Protect installed components from damage until project completion. C. General: Comply with information of contract drawings and approved mock ups except where project conditions require extra provisions to ensure satisfactory performance of the work. END OF SECTION Saint Louis Zoo ROPE AND NETTING

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