Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Dual System-Shearwall Boundary Element as Column for Conc Moment Frame?

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Can a dual system shearwall with concrete moment frame have the shearwall in line with the moment frame such that the end column of the moment frame is also the boundary element of the shear wall? If so, how would this be distinguished from a shearwall-frame interaction system? Is the only difference the amount of seismic load that the moment frame can resist(i.e. 25%)? (Zone 4)

SEAOC's 1999 Blue Book indicates in the commentary on Dual Systems: C104.6.5.2 and C104.6.5.3, Item 2 "...Columns of the frame system may also function as boundary elements of shear walls. As such, these columns must be designed to resist the vertical forces resulting from overturning moment in the shear wall along with the load effects associated with the frame system." The commentary, however, does not distinguish whether the boundary element (when permitted to be used as part of the moment frame) has the moment frame perpendicular to the axis of the shearwall or whether it could be in line with the shearwall.

******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at:
*   This email was sent to you via Structural Engineers
*   Association of Southern California (SEAOSC) server. To
*   subscribe (no fee) or UnSubscribe, please go to:
*   Questions to seaint-ad(--nospam--at) Remember, any email you
*   send to the list is public domain and may be re-posted
*   without your permission. Make sure you visit our web
*   site at:
******* ****** ****** ****** ******* ****** ****** ********