几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 - 查看单个帖子 - nyc building code 2003 design of masonry wall clarification

nyc building code 2003 design of masonry wall clarification
hi,
section 6.4.1 multi story buildings (page 129 volume ii,rs-10 nyc building code 2003) is not clear to me.
regarding item a) exterior solid walls-..."the thickness of solid exterior masonry bearing walls shall be at least 8 in. for the top floor and 12 in. for a maximum of 55 feet measured downward from the top floor level. any addtional height should be provided by 16 in lower walls up to a maximum height of 104 ft. building taller than 104 ft. shall be structurally analyzed and designed. the slenderness ratio shall not exceed 20. "
question: where in elevation is the 16 inch wide wall required ? at 55 feet ? please advise someone.
find a job or post a job opening
i don't have that book but it sounds like it should be like this:
top floor: 8 inch (whatever height top floor is, say 10ft from floor to roof)
walls below top floor: 12 inches, which can be used up to a maximum of 55 feet
therefore the 16 inch would start at (10 feet+55 feet)=65 feet from the top of the highest floor.
i don't really like the phrase: "buildings taller than 104 ft. shall be structurally analyzed and designed". to some people it may sound like "so up to 104' just put whatever reinforcing you choose."
(16 inch starts at 65 feet from roof.)

2009-09-10, 04:49 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	nyc building code 2003 design of masonry wall clarification nyc building code 2003 design of masonry wall clarification hi, section 6.4.1 multi story buildings (page 129 volume ii,rs-10 nyc building code 2003) is not clear to me. regarding item a) exterior solid walls-..."the thickness of solid exterior masonry bearing walls shall be at least 8 in. for the top floor and 12 in. for a maximum of 55 feet measured downward from the top floor level. any addtional height should be provided by 16 in lower walls up to a maximum height of 104 ft. building taller than 104 ft. shall be structurally analyzed and designed. the slenderness ratio shall not exceed 20. " question: where in elevation is the 16 inch wide wall required ? at 55 feet ? please advise someone. find a job or post a job opening i don't have that book but it sounds like it should be like this: top floor: 8 inch (whatever height top floor is, say 10ft from floor to roof) walls below top floor: 12 inches, which can be used up to a maximum of 55 feet therefore the 16 inch would start at (10 feet+55 feet)=65 feet from the top of the highest floor. i don't really like the phrase: "buildings taller than 104 ft. shall be structurally analyzed and designed". to some people it may sound like "so up to 104' just put whatever reinforcing you choose." (16 inch starts at 65 feet from roof.) __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]