PART 1 - GENERAL 1.1 SUMMARY A. Section includes the following: 1. Handrails and guardrails. 1.2 PERFORMANCE REQUIREMENTS A. General: In engineering railings to withstand structural loads indicated, determine allowable design working stresses of railing materials based on the following: 1. Steel: 72 percent of minimum yield strength. B. Structural Performance: 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 Guardrails: 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. C. 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. D. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials. 1.3 SUBMITTALS A. Product Data: For the following: 1. Manufacturer's product lines of railings assembled from standard components. 2. Grout, anchoring cement, and paint products. B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. Page 1 of 6
1. Include analysis data signed and sealed by the qualified professional engineer registered in the state of Florida and responsible for their preparation. C. Samples: For material and colors indicated. 1. Provide Samples for railings. a. Include post, pickets, and rails. b. Samples are not required to be full size. D. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, according to ASTM E 894 and ASTM E 935. 1.4 QUALITY ASSURANCE A. Mockups: Build mockups to verify selections made under sample submittals and to demonstrate aesthetic effects and set quality standards for fabrication and installation. 1. Include mockup of smallest unit of each handrail type indicated. 2. Approved mockups may become part of the completed Work if undisturbed at time of Final Acceptance. B. Preinstallation Conference: Conduct conference at Project site. 1.5 COORDINATION AND SCHEDULING A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written recommendations to ensure that shop primers and topcoats are compatible with one another. B. Coordinate installation of anchorages for railings. Furnish setting drawings, templates, and directions for installing anchorages. Page 2 of 6
1.6 WARRANTY A. Assignment of Warranties: 1. Wherever in this Section a product notes manufacturer s warranties the following language is deemed to be included: Contractor hereby assigns to the Department any and all manufacturers or other sellers warranties that come with any products, material or supplies which are incorporated into or are consumed in the project in any way. To the extent that any such warranties do not extend to subsequent purchasers or owners or such warranties contain a limitation on assignment, Contractor agrees that Contractor purchased the products, materials and supplies on behalf of the Department with the intent that the Department be the intended recipient of any warranties. All documents associated with or describing any such warranties shall be delivered to the Department along with the other project final acceptance documents and shall be deemed to be a part of the required final acceptance documentation. Contractor shall not take any action or fail to act in any way which voids any such warranties. All subcontracts shall contain a similar provision which requires subcontractors to assign any such warranties to the Department. B. Manufacturer s Warranty: Provide Manufacturer s standard warranty agreeing to repair or replace complete system or system components, to the satisfaction of the Engineer, that do not comply with specified requirements or that fail in material or workmanship within the specified warranty period. 1. Warranty Period: One year following the date of Final Acceptance. PART 2 - PRODUCTS 2.1 METALS, GENERAL A. Metal Surfaces, General: Provide materials with smooth surfaces, without seam marks, roller marks, rolled trade names, stains, discolorations, or blemishes. 2.2 STEEL AND IRON A. Tubing: ASTM A 500. B. Pipe: ASTM A 53, Type F or Type S, Grade A, Standard Weight (Schedule 40), unless another grade and weight are required by structural loads. C. Plates, Shapes, and Bars: ASTM A 36. 2.3 FABRICATION A. General: Fabricate railings to comply with requirements indicated for design, dimensions, member sizes and spacing, details, finish, and anchorage, but not less than that required to support structural loads. Page 3 of 6
B. Assemble railings in the shop to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation. Use connections that maintain structural value of joined pieces. C. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch unless otherwise indicated. Remove sharp or rough areas on exposed surfaces. D. Form work true to line and level with accurate angles and surfaces. E. Fabricate connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate. F. Cut, reinforce, drill, and tap as indicated to receive finish hardware, screws, and similar items. G. Welded Connections: Cope components at connections to provide close fit, or use fittings designed for this purpose. Weld all around at connections, including at fittings. 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 flux immediately. 4. At exposed connections, finish exposed surfaces smooth and blended so no roughness shows after finishing and welded surface matches contours of adjoining surfaces. H. Form changes in direction as follows: 1. As detailed. I. Bend members in jigs to produce uniform curvature for each configuration required; maintain cross section of member throughout entire bend without buckling, twisting, cracking, or otherwise deforming exposed surfaces of components. J. Close exposed ends of railing members with prefabricated end fittings. K. Fasteners: Manufacturer's standard corrosion-resistant, color-coated fasteners matching railing components. 2.4 FINISH A. Finish Coating System: Refer to Section 09960 High Performance Coatings. 1. Colors: Refer to the Materials Schedule on the Plans. 2.5 MISCELLANEOUS MATERIALS A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded. Page 4 of 6
B. High-Strength/Non-Shrink Epoxy Grout: High-strength, non-metallic, factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for exterior applications. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine areas and conditions, with Installer present, for compliance with requirements for site clearing, earthwork, pavement work, construction layout, and other conditions affecting performance of the Work. B. Do not begin installation before final grading is completed unless otherwise permitted by Engineer. C. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 INSTALLATION A. Perform cutting, drilling, and fitting required for installing railings. Set railings accurately in location, alignment, and elevation; measured from established lines and levels and free of rack. 1. Do not weld, cut, or abrade surfaces of railing components that have been coated or finished after fabrication and that are intended for field connection by mechanical or other means without further cutting or fitting. 2. Set posts plumb within a tolerance of 1/16 inch in 3 feet. B. Adjust railings before anchoring to ensure matching alignment at abutting joints. 3.3 RAILING CONNECTIONS A. General: Manufacturer s standard design for connecting railing components. B. Welded Connections: Use fully welded joints for permanently connecting railing components. Comply with requirements for welded connections in "Fabrication" Article whether welding is performed in the shop or in the field. C. Expansion Joints: Install expansion joints as required to accommodate thermal movement. 3.4 ANCHORING POSTS A. Verify that posts are set plumb, aligned, and at correct height and spacing, and hold in position during setting with concrete or mechanical devices. Page 5 of 6
B. Core-drill holes for installing posts in concrete unless otherwise indicated. Clean holes of loose material, insert posts, and fill annular space between post and concrete with grout, mixed and placed to comply with anchoring material manufacturer's written instructions. C. Leave anchorage joint exposed with anchoring material flush with adjacent surface. 3.5 CLEANING A. Clean railings by washing thoroughly with clean water and soap, rinsing with clean water, and wiping dry. B. Touchup Painting: Cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint are specified in Section 09960 High-Performance Coatings. 3.6 PROTECTION A. Protect finishes of railings from damage during construction period with temporary protective coverings approved by railing manufacturer. Remove protective coverings at time of Final Acceptance or as directed by the Engineer. B. Restore finishes damaged during installation and construction period so no evidence remains of correction work. Return items that cannot be refinished in the field to the shop; make required alterations and refinish entire unit, or provide new units. END OF Page 6 of 6