Masonry Moment Frames 1

[RFreund]

Any good references on this?
I mean it's all grouted solid so it should be pretty similar to the ACI 318 provisions as far as effective moment of inertia, column stability, etc. right?

EIT

http://www.HowToEngineer.com

 

[SteelPE]

Never heard of a masonry moment frame. What is the difference between a masonry moment frame and a masonry shear wall with lots of holes in it?

 

[RFreund]

hmm, well I'm not much but normally I would separate those individual shear walls and I may do the same here, but I was wondering if some economy can be gained in trying to turn these into 'moment frames'. I need to look back in the Reinforced Masonry Engineering Handbook (6th ed I think) touches on this. Maybe its not worth it.

EIT

http://www.HowToEngineer.com

 

[DST148]

Ref: Seismic design of reinforced concrete and masonry buildings by Paulay & Priestley, Wiley Publication. There is a section on masonry moment-resisting wall frames.
Masonry moment-resisting wall frame has proportions in terms of ratio of bay length to story height similar to reinforced concrete moment frames rather than of coupled concrete structural walls.
Beam flexure, beam shear, column flexure and shear, beam-column joint design, ductility, detailing etc. is covered in Chapter 7 - Masonry Structures.

 

[RFreund]

Thanks for the reference. Looks a little dated (1992), which, don't get me wrong is not always bad (sometimes its even better), however is there anything more current? Maybe post 1995 (northridge EQ) not sure if that would have changed anything...
I do appreciate the reference and will probably get it either way.


EIT

http://www.HowToEngineer.com

 

[UcfSE]

I've found the Paulay & Priestley book to be pretty applicable, even as old as it is.

 

[hawkaz]

Jim Amrhein did a presentation on these years ago, but I have never seen the benifit.
You might look up some of his literature

 

[henri2]

The Uniform Building Code (UBC) had design requirements for MMRWF. Think it survived two or three editions in the 90s. UCLA Prof Gary Hart was one of the early proponents. I doubt if it was widely used.