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Orange County Architectural Renovations Smith Sinnett / 2023036 <br />Hillsborough, NC Orange County Asset Management Services <br />METAL FABRICATIONS 05 50 00 - 7 <br />E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or <br />similar construction. <br />F. Corrosion Protection: Coat concealed surfaces of aluminum that will come into contact with grout, concrete, <br />masonry, wood, or dissimilar metals with a heavy coat of bituminous paint. <br />3.2 INSTALLING MISCELLANEOUS FRAMING AND SUPPORTS <br />A. General: Install framing and supports to comply with requirements of items being supported, including <br />manufacturers’ written instructions and requirements indicated on Shop Drawings. <br />B. Anchor supports for operable partitions securely to and rigidly brace from building structure. <br />C. Support steel girders on solid grouted masonry, concrete, or steel pipe columns. Secure girders with anchor <br />bolts embedded in grouted masonry or concrete or with bolts through top plates of pipe columns. <br />1. Where grout space under bearing plates is indicated for girders supported on concrete or masonry, install <br />as specified in "Installing Bearing and Leveling Plates" Article. <br />3.3 INSTALLING BEARING AND LEVELING PLATES <br />A. Clean concrete and masonry bearing surfaces of bond-reducing materials, and roughen to improve bond to <br />surfaces. Clean bottom surface of plates. <br />B. Set bearing and leveling plates on wedges, shims, or leveling nuts. After bearing members have been positioned <br />and plumbed, tighten anchor bolts. Do not remove wedges or shims but, if protruding, cut off flush with edge of <br />bearing plate before packing with grout. <br />1. Use nonshrink grout, either metallic or nonmetallic, in concealed locations where not exposed to <br />moisture; use nonshrink, nonmetallic grout in exposed locations, unless otherwise indicated. <br />2. Pack grout solidly between bearing surfaces and plates to ensure that no voids remain. <br />3.4 INSTALLING METAL BOLLARDS <br />A. Anchor bollards to existing construction with expansion anchors. Provide four 3/4-inch bolts at each bollard, <br />unless otherwise indicated. <br />1. Embed anchor bolts at least 4 inches in concrete. <br />B. Anchor bollards in concrete in formed or core-drilled holes not less than 8 inches deep and 3/4 inch larger than <br />OD of bollard. Fill annular space around bollard solidly with nonshrink, nonmetallic grout; mixed and placed to <br />comply with grout manufacturer’s written instructions. Slope grout up approximately 1/8 inch toward bollard. <br />C. Anchor bollards in place with concrete footings. Center and align bollards in holes 3 inches above bottom of <br />excavation. Place concrete and vibrate or tamp for consolidation. Support and brace bollards in position until <br />concrete has cured. <br />D. Fill bollards solidly with concrete, mounding top surface to shed water. <br />3.5 ADJUSTING AND CLEANING <br />A. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas. Paint <br />uncoated and abraded areas with the same material as used for shop painting to comply with SSPC-PA 1 for <br />touching up shop-painted surfaces. <br />1. Apply by brush or spray to provide a minimum 2.0-mil dry film thickness. <br />B. Touchup Painting: Cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop <br />paint are specified in Division 09 painting Sections. <br />C. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply <br />with ASTM A 780. <br />Docusign Envelope ID: 52FACC74-DA96-491B-B0B8-04AC3961737D