Masonry Walls - Horizontally spanning
Masonry Walls - Horizontally spanning
(OP)
What is the standard detail adopted when you design masonry walls spanning horizontally between concrete piers (pilasters). I have typically seen joint reinforcing (every 2 courses) extended into the column and the column gets poured after the masonry wall is built.
Are there alternate ways to doing this? What detail would be used if the column is built first, if contractor prefers to do so? I don't like the detail because I am not sure if the wall is "packed" in between piers and arching action developing is questionable. Can the horizontally spanning wall be attached to the column with wall ties? Has anyone specified something like this before?
Are there alternate ways to doing this? What detail would be used if the column is built first, if contractor prefers to do so? I don't like the detail because I am not sure if the wall is "packed" in between piers and arching action developing is questionable. Can the horizontally spanning wall be attached to the column with wall ties? Has anyone specified something like this before?






RE: Masonry Walls - Horizontally spanning
I'll try to dig up some calculations from Glanville's book.
Dik
RE: Masonry Walls - Horizontally spanning
RE: Masonry Walls - Horizontally spanning
Dik
RE: Masonry Walls - Horizontally spanning
Can you post a detail? In this current scenario, we are showing double piers (pilasters) separated by a 10mm gap. These double piers are at every 8.5m which matches the column grids. Are you saying that the wall will be designed to act as a cantilever from the adjacent pilaster to the control joint?
Also when you have joint reinforcing every 2 courses, is it fair to assume that the compression block width is the height of two courses and the tension steel is the joint reinforcing? Are there any checks/requirements for the bed joint mortar?
@dik,
Thanks for posting that. I will go through it. I don't think I have ever seen any other textbook or reference that details horizontally spanning walls and their design.
Any info on TEKs or other publications that deals with designing horizontal joint reinforcing to carry moments in horizontally spanning walls?
RE: Masonry Walls - Horizontally spanning
Dik
RE: Masonry Walls - Horizontally spanning
Engineered Masonry Design by Glanville, Hatzinkolas and Ben-Omran, and
Masonry Structures, Behaviour and Design by Drysdale and Hamid.
The earlier one is about 15 years old and may no longer be in print (John Glanville passed away a few years ago). The latter one is about 5 years old; both are extremely good...
Dik
RE: Masonry Walls - Horizontally spanning
http://www.ncma.org/ETEK/Pages/TEKList.aspx
It seems like I had tables with joint reinforcing and allowable horizontal spans but I can't seem to find them right now.
RE: Masonry Walls - Horizontally spanning
RE: Masonry Walls - Horizontally spanning
Control joints are provided at 8.5m o.c. There are intermediate single piers at 2.85m o.c, which is my horizontal span.
RE: Masonry Walls - Horizontally spanning