Air sampling protocol document, 130 Cedar Street, Jan 2005

NYC 9/11 Public Portal Document

130 Cedar Street July 15, 2004 Selective Demolition and Façade Reconstruction Koenen Associates

4'- 11" or less 4" X 3-1/2" X 5/16" a. 3-1/2" legs are horizontal.

5'-0"to7'-0" 5" X 3-1/2" X 5/16" b. Provide one angle for each •

3-314" of wall thickness or less. Provide 5" X 5" x 5/16" angle for 5-5/6" or 6" thick walls and partitions.

c. Length of lintels - Masonry openings + 12".

B. Rough Hardware:

Furnish bent or otherwise custom fabricated bolts, plates, anchors, hangers, dowels and other miscellaneous steel and iron shapes as required or framing and supporting woodwork, and for anchoring and securing woodwork to concrete or other structures. Straight bolts and other stock rough hardware items are specified In Division 6 Sections.

2.. Fabricate items to sizes, shapes and dimensions required. Furnish malleable iron washers for heads and nuts which bear on wood connections; elsewhere, furnish steel washers.

C. Loose Steel Lintels

1. Provide loose structural steel lintels for openings and recesses in masonry walls and partitions as shown. Weld adjoining members together to form a single unit where indicated. Provide proper size and quantity of loose Lintels with adequate bearing length.

• 2. At columns or vertical surfaces where lintels cannot bear on masonry, provide clip angles for structural capacity of lintel.

D. Miscellaneous Light Steel Framing.

1. Light steel framing, bracing, supports, framing, clip angles, shelf angles, plates, etc., shall be of such shape and sizes as indicated on the drawings and details or as required to suit the condition and shall be provided with all necessary supports and reinforcements such as hangers, braces, struts, clip angles, anchors, bolts, nuts, welds, etc., as required to properly support and rigidly fasten and anchor same in place and to steel, concrete, masonry and all other connecting and adjoining work.

2. All light steel frame shall be furnished and erected in accordance with the applicable requirements of the "Specifications for the Design, Fabrication and Erection of Structural Steel for Buildings" by the American Institute for Steel Construction and as specified herein.

E. Sleeves in Concrete Walls and Slabs

1. Sleeves through concrete walls shall be of Schedule 40 steel pipe with l.d. two (2) inches larger than o.d. of pipe or conduit (including Insulation, if any) to be accommodated. Sleeves shall project one-half (1/2) inch on each side of finished wall. Provide rectangular one quarter (1/4) inch steel plate collar at center, continuously welded to the perimeter of the sleeve, and six (6) inches wider than the o.d.

Miscellaneous Metals •

05500-7

NYC-WTC 000125189