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Re: point load vs. effective width[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: point load vs. effective width
- From: deyesejt(--nospam--at)openway.com.co (Juan Tamasco)
- Date: Sun, 26 Jul 1998 14:47:40 -0500 (EST)
At 02:48 pm 26/7/98, Roger Turk wrote: >When something is not spelled out in codes, I look for something in the code >that will provide guidance. In this situation, 2106.3.8 (1997 UBC) gives >some guidance in that it specifies that the effective width of a flexural >compression area is not to exceed 6 times the nominal wall thickness for >masonry in running bond, nor the center to center distance of reinforcement. >(I am assuming that your wall is masonry.) > >I would then apply some intuitive judgement, such as assuming that the stress >is distributed at a 30 degree angle each side of the applied concentrated >load and use whichever is less. > >A. Roger Turk, P.E.(Structural) >Tucson, Arizona > >. > I have a project that needs to design a free-standing wall subjected to a >. > point load perpendicular >. > to the wall (out-of-plane point load). The point load is located at 2'-0" >. > above the bottom of the >. > wall. The question is that what width of the wall (at wall length >. > direction, not thickness >. > direction; the width is located at bottom of the wall) should be used to >. > resist the point load ? >. > Should be spread at a ratio of height:width=1:2 at each side of the point >. > load (that means >. > width=8') or even height:width=1:3 (width=(2)(2)(3')=12') ? Or any other >. > width should be used ? >. > Does any one know any reference or test results regarding this issue ? >. > >. > Thanks in advance. >. > >. > >. > Quick Wu >. > CSD >. > > > Sorry for answer in spanish Debe tenerse en cuenta si la zona que estas determinando esta debajo del eje neutro del muro y por lo tanto muy posiblemente en traccion, de ser asi no seria valida ninguna de las longitudes estimadas y debiera buscarse un mecanismo de trasmision de la carga hasta la parte superior del muro.
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