ANCHORING POSTS

A. Use metal sleeves preset and anchored into concrete for installing posts. After posts have been inserted into sleeves, fill annular space between post and sleeve with nonshrink, nonmetallic grout or anchoring cement, mixed and placed to comply with anchoring material manufacturer's written instructions.

B. Leave anchorage joint exposed with anchoring material flush with adjacent surface. 3.4 ADJUSTING AND CLEANING

A. Clean aluminum and stainless steel by washing thoroughly with clean water and soap and rinsing with clean water.

B. 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 dry film thickness. 3.5 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 Substantial Completion.

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

1.2 SUMMARY A. Section Includes:

1. Post-supported railings with glass infill. B. Related Sections:

1. Division 05 Section "Metal Stairs" for steel tube railings included with metal stairs. 2. Division 05 Section "Pipe and Tube Railings" for railings fabricated from pipe and tube

components. 1.3 DEFINITIONS

A. Railings: Guards, handrails, and similar devices used for protection of occupants at open- sided floor areas, pedestrian guidance and support, visual separation, or wall protection. 1.4 PERFORMANCE REQUIREMENTS

A. Delegated Design: Design railings, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated. B. General: In engineering railings to withstand structural loads indicated, determine allowable

design working stresses of railing materials based on the following: 1. Stainless Steel: 60 percent of minimum yield strength.

C. 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 Guards:

a. Uniform load of 50 lbf/ft.(0.73 kN/m)applied in any direction at the top. b. Concentrated load of 200 lbf(0.89 kN)applied in any direction along the top. c. Uniform and concentrated loads need not be assumed to act concurrently. 2. Infill of Guards:

a. Concentrated load of 50 lbf(0.22 kN)applied horizontally on an area of 1 sq. ft.

(0.093 sq. m).

b. Infill load and other loads need not be assumed to act concurrently. 1.5 PRECONSTRUCTION TESTING

A. Preconstruction Testing Service: Owner will engage a qualified testing agency to perform preconstruction testing on laboratory mockups. Payment for these services will be made by Owner. Retesting of products that fail to meet specified requirements shall be done at Contractor's expense.

1. Build laboratory mockups at testing agency facility; use personnel, materials, and methods of construction that will be used at Project site.

2. Test railings according to ASTM E 894 and ASTM E 935.

3. Notify Architect 14 days in advance of the dates and times when laboratory mockups will be tested.

1.6 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. C. Samples for Initial Selection: For products involving selection of color, texture, or

design, including mechanical finishes.

D. Samples for Verification: For each type of exposed finish required.

1. Sections of each distinctly different linear railing member, including handrails, top rails and posts.

2. Each type of glass required. 3. Fittings and brackets. 4. Welded connections.

5. Assembled Samples of railing systems, made from full-size components, including top rail, post, handrail, and infill. Show method of finishing members at intersections. Samples need not be full height.

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

F. Qualification Data: For qualified professional engineer. G. Qualification Data: For Fabricator.

1. Fabricator shall have a minimum of 10 years experience fabricating railing systems of the type indicated in the Contract Documents.

H. Welding certificates.

I. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, according to ASTM E 894 and ASTM E 935.

J. Preconstruction test reports. 1.7 QUALITY ASSURANCE

B. Product Options: Information on Drawings and in Specifications establishes requirements for system's aesthetic effects and performance characteristics. Aesthetic effects are indicated by dimensions, arrangements, alignment, and profiles of components and assemblies as they relate to sightlines, to one another, and to adjoining construction. Performance characteristics are indicated by criteria subject to verification by one or more methods including structural analysis, preconstruction testing, field testing, and in-service performance.

1. Do not modify intended aesthetic effects, as judged solely by Architect, except with Architect's approval. If modifications are proposed, submit comprehensive explanatory data to Architect for review.

C. Fabricator Qualifications: A firm that assumes responsibility for engineering custom fabricated stainless steel railing systems. This responsibility includes preparation of shop drawings and comprehensive engineering analysis by a qualified engineer.

D. Welding Qualifications: Qualify procedures and personnel according to the following: 1. AWS D1.6, "Structural Welding Code - Stainless Steel."

E. Safety Glazing Labeling: Permanently mark glass with certification label of the SGCC or another certification agency acceptable to authorities having jurisdiction. Label shall indicate manufacturer's name, type of glass, thickness, and safety glazing standard with which glass complies.

F. Mockups: Build mockups to verify selections made under sample submittals and to demonstrate aesthetic effects and set quality standards for fabrication and installation.

1. Build mockups for each form and finish of railing consisting of two posts, top rail, infill area, and anchorage system components that are full height and are not less than 24

inches(600 mm)in length.

2. Approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.