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  


返回   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 » 三维空间:产品设计或CAX软件使用 » CAD设计 » 产品功能分析
用户名
密码
注册 帮助 会员 日历 银行 搜索 今日新帖 标记论坛为已读


 
 
主题工具 搜索本主题 显示模式
旧 2009-09-07, 03:06 PM   #1
huangyhg
超级版主
 
huangyhg的头像
 
注册日期: 04-03
帖子: 18592
精华: 36
现金: 249466 标准币
资产: 1080358888 标准币
huangyhg 向着好的方向发展
默认 beam supporting slab design

beam supporting slab design
it's common while designing joist slab. however, for solid slab design, i don't think it's very common. since the inertia of the beam is almost same as that of slab, the whole system tends to behave like flat plate rather than beam/slab system. deflection control will govern large slab depth and by specifying width of the embedded beam actually dictates reinforcement as a means to curb deflection rather than inertia.
i agree in that is less common for solid slabs. maybe short cantilevers made that way 1 side of the beam.
respect the justification, proper assignment of the beam rebar to some width resulting in satisfactory calculated stresses and deformation may validate one such design, whilst the issues of behavior 2 way as named by benishak will still be present.
don't forget that the loads of the notional slab need be passed to the beam axis, i.e, bending along the direction orthogonal to the beam encompasses the full extent of the floor along such line, the width of the notional beams included.
zap,
this is sometimes done around voids in slabs to provide a support or strong band to support the load for the area of slab that is not continuous to the supports. the design width is then the width that you logically think will be supporting that load. it should not normally be more than about .1 to .15 of the span length. there was a post on strong bands" which discussed this a couple of weeks ago.
__________________
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]
huangyhg离线中   回复时引用此帖
GDT自动化论坛(仅游客可见)
 


主题工具 搜索本主题
搜索本主题:

高级搜索
显示模式

发帖规则
不可以发表新主题
不可以回复主题
不可以上传附件
不可以编辑您的帖子

vB 代码开启
[IMG]代码开启
HTML代码关闭

相似的主题
主题 主题发起者 论坛 回复 最后发表
beam supporting column huangyhg 产品功能分析 0 2009-09-07 03:05 PM
beam strengthening huangyhg 产品功能分析 0 2009-09-07 03:04 PM
adapt p huangyhg 产品功能分析 0 2009-09-07 10:10 AM
12 x 6.5x 38 thick x 41 residential basement i-beam con huangyhg 产品功能分析 0 2009-09-06 10:30 PM
【转帖】asme美国机械工程师标准目录2 huangyhg American standards 5 2009-04-26 02:38 PM


所有的时间均为北京时间。 现在的时间是 12:56 PM.


于2004年创办,几何尺寸与公差论坛"致力于产品几何量公差标准GD&T | GPS研究/CAD设计/CAM加工/CMM测量"。免责声明:论坛严禁发布色情反动言论及有关违反国家法律法规内容!情节严重者提供其IP,并配合相关部门进行严厉查处,若內容有涉及侵权,请立即联系我们QQ:44671734。注:此论坛须管理员验证方可发帖。
沪ICP备06057009号-2
更多