c. Weld clip angles to both legs of angle at top and bottom. d. Drill clips and plates, at top and bottom for anchoring jamb angles with two 9 mm (3/8 inch) expansion bolts at each location. e. Cut rabbet for pivot hinges and lock strike. SPEC WRITER NOTE: See Section 10 26 00, WALL AND DOOR PROTECTION for interior guards used in finished spaces. Use structural steel items for service and shop areas. Use paragraph B where door frame is not used. 2.7 GUARDS A. Wall Corner Guards: 1. Fabricate from steel angles and furnish with anchors as shown. 2. Continuously weld anchor to angle. B. Guard Angles for Overhead Doors: 1. Cut away top portion of outstanding leg of angle and extend remaining portion of angle up wall. 2. Weld filler piece across head of opening to jamb angles. 3. Make provisions for fasteners and anchorage. C. Channel Guard at Loading Platform: 1. Fabricate from steel channel of size shown. 2. Weld anchors to channels as shown. 3. Drill channel for bumper anchor bolts. D. Edge Guard Angles for Openings in slabs. 1. Fabricate from steel angles of sizes and with anchorage shown. 2. Where size of angle is not shown, provide 50 x 50 x 6 mm (2 x 2 x 1/4 inch) steel angle with 32 x 5 mm (1-1/4 x 3/16 inch) strap anchors, welded to back. 3. Miter or butt angles at corners and weld. 4. Use one anchor near end and three feet on centers between end anchors. E. Wheel Guards: 1. Construct wheel guards of not less than 16 mm (5/8 inch) thick cast iron. 2. Provide corner type, with flanges for bolting to walls. 2.8 COVERS AND FRAMES FOR PITS AND TRENCHES A. Fabricate covers to support live loads specified. B. Galvanized steel members after fabrication in accordance with ASTM A123, G-90 coating.
c. Weld clip angles to both legs of angle at top and bottom. d. Drill clips and plates, at top and bottom for anchoring jamb angles with two 9 mm (3/8 inch) expansion bolts at each location. e. Cut rabbet for pivot hinges and lock strike. SPEC WRITER NOTE: See Section 10 26 00, WALL AND DOOR PROTECTION for interior guards used in finished spaces. Use structural steel items for service and shop areas. Use paragraph B where door frame is not used. 2.7 GUARDS A. Wall Corner Guards: 1. Fabricate from steel angles and furnish with anchors as shown. 2. Continuously weld anchor to angle. B. Guard Angles for Overhead Doors: 1. Cut away top portion of outstanding leg of angle and extend remaining portion of angle up wall. 2. Weld filler piece across head of opening to jamb angles. 3. Make provisions for fasteners and anchorage. C. Channel Guard at Loading Platform: 1. Fabricate from steel channel of size shown. 2. Weld anchors to channels as shown. 3. Drill channel for bumper anchor bolts. D. Edge Guard Angles for Openings in slabs. 1. Fabricate from steel angles of sizes and with anchorage shown. 2. Where size of angle is not shown, provide 50 x 50 x 6 mm (2 x 2 x 1/4 inch) steel angle with 32 x 5 mm (1-1/4 x 3/16 inch) strap anchors, welded to back. 3. Miter or butt angles at corners and weld. 4. Use one anchor near end and three feet on centers between end anchors. E. Wheel Guards: 1. Construct wheel guards of not less than 16 mm (5/8 inch) thick cast iron. 2. Provide corner type, with flanges for bolting to walls. 2.8 COVERS AND FRAMES FOR PITS AND TRENCHES A. Fabricate covers to support live loads specified. B. Galvanized steel members after fabrication in accordance with ASTM A123, G-90 coating.
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