Bulletin Volume 46-60.cUnited States Congress Senate
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Author: United States Congress Senate
Number of Pages: 710 pages
Published Date: 05 May 2014
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781234201654
File size: 28 Mb
File Name: Bulletin.Volume.46-60.pdf
Download Link: Bulletin Volume 46-60
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...storage rooms. Shall have grade-line platforms, with exit doors at least 3 feet wide. Grade " B."--Composite: Shall be surrounded by masonry or fireproof walls with fireproof ceiling at topmost story and fireproof floor at lowest level: all openings provided with self-closing fire doors. Grade-line platforms and 3-foot exit doors. No storage closet under any stairway. Width: Three feet per 100 persons in buildings accommodating 500 or less; 5 feet additional for every additional 100 up to 1,000; 6 feet for every 100 over 1,000. No stairway shall be less than 3 feet nor more than 6 feet clear. If over 6 feet wide. center handrails with angle and newel posts at least 6 feet high shall be provided. Not less than 3 nor more than 16 risers in any run. No winders; all nosing shall be straight. Uniform width shall be maintained by rounding corners and beveling angles. Handrails shall be provided on both sides of all stairways and steps. Risers and treads: Primary schools. not more than 6-inch rise nor less than 11-inch tread; grammar schools, not more than (ll-inch rise nor less than 11-inch tread; all other schools. not more than 7-inch rise nor less than 10-inch tread. All treads shall be covered with nonslipping surface. No door shall open directly upon a stairway, but on a landing at least as long as the width of the door. Gradients of not over 1-inch rise in 12-inch run shall be employed to overcome diiferences in floor levels that would require less than three risers. Floors at all exits shall be level and flush with adjacent floors. Passagcways: No hall leading to a stairway or exit shall be less in width than such stairway or exit. Halls and passageways shall be designed to prevent congestion and confusion. b'.z-it doors and...
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