HandrailsScott Tower Maint.doc

SECTION 05521

pipe Handrails part 1 - GENERAL

1.1 SUMMARY

A. This Section includes pipe and tube handrails made of the following:

1. Steel.

1.2 PERFORMANCE REQUIREMENTS

A. Structural Performance of Handrails and Railings:

1. Comply with ASTM E 985, based on testing per ASTM E 894 and ASTM E 935.

1.3 SUBMITTALS

A. Product Data: For mechanically connected handrails and railings, grout, anchoring cement, and paint products.

B. Shop Drawings: Include plans, elevations, sections, details of installation, and attachments to other Work.

PRODUCTS

C. Steel and Iron:

1. Steel 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.

a. Galvanized finish for exterior installations and where indicated.

SPEC WRITER: RETAIN FIRST SUBPARAGRAPH BELOW FOR RECTANGULAR TUBES, IF ANY, EVEN IF ABOVE IS USED FOR ROUNDS.

2. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M.

1.4 MISCELLANEOUS MATERIALS

A. Welding Electrodes and Filler Metal: Provide type and alloy as recommended by producer of metal to be welded and as required for color match, strength, and compatibility in fabricated items.

1.5 FABRICATION

A. General: Fabricate to design, dimensions, and details indicated, but not less than that required supporting structural loads.

B. Form changes in direction of railing members by bending.

C. Form curves by use of welded-in fittings.

D. Welded Connections: Connect handrail and railing members by welding. Weld connections continuously.

E. Brackets, Flanges, Fittings, and Anchors: Fabricate wall brackets, flanges, miscellaneous fittings, and anchors to connect handrails and railings to other work.

1. Cast or form metal of same material and finish as rails.

2. For galvanized handrails and railings, fabricate galvanized brackets, flanges, fittings, and anchors.

F. Close exposed ends of handrail and railing members with prefabricated end fittings.

G. Provide drain holes as needed for galvanizing.

H. Galvanize handrails. See galvanizing speciation in Section 05120, Structural Steel.

part 3 - EXECUTION

1.6 INSTALLATION

A. General: Perform cutting, drilling, and fitting required to install handrails and railings. Set units accurately in location, alignment, and elevation.

SPEC WRITER: RETAIN TYPE (S) OF ANCHORAGE BELOW TO SUIT PROJECT.

B. Anchor posts in concrete by inserting into preset steel pipe sleeves or core-drilled holes and grouting annular space.

SPEC WRITER: REVISE FIRST PARAGRAPH BELOW IF POSTS ARE WELDED DIRECTLY TO SUPPORTS.

C. Anchor railing ends into concrete and masonry with round flanges connected with postinstalled anchors and bolts.

D. Touch up surfaces and finishes after erection.

1. Galvanized Surfaces: Repair galvanizing per specification Section 05120, Structural Steel

END OF SECTION 05521

05521 - 1

PIPE HANDRAILS