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development of deformed bars
a reinforcing bar must be fully developed on both sides of any section in question. development begins at each end of the bar, where fy = 0, and fy reaches 60 ksi at a distance equal to the development length from the end of the bar.
if, at any section, there is insufficient development length available, consider using a hook, or else your effective fy will equal (actual development length/required development length) times fy.
the development length of bar is for the bar not to fail in bonding before yielding.
in general, for embedment length, the development length is measured from face of support to the end of the developed bar.
in flexural, it is measured from point of inflection where steel is no longer required technically.

2009-09-08, 06:31 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	development of deformed bars development of deformed bars a reinforcing bar must be fully developed on both sides of any section in question. development begins at each end of the bar, where fy = 0, and fy reaches 60 ksi at a distance equal to the development length from the end of the bar. if, at any section, there is insufficient development length available, consider using a hook, or else your effective fy will equal (actual development length/required development length) times fy. the development length of bar is for the bar not to fail in bonding before yielding. in general, for embedment length, the development length is measured from face of support to the end of the developed bar. in flexural, it is measured from point of inflection where steel is no longer required technically. __________________ 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]