For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
(OP)
to control story drift,
my experience is shear wall is the best,
then cross brace,
the least is moment frame.
Any opnion?
my experience is shear wall is the best,
then cross brace,
the least is moment frame.
Any opnion?






RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
Depends on where you are located (local costs vary).
Depends on the function of the building and need for windows, etc.
It depends.
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
ok, lets say a story office building. All design options are possible.
Shear wall design will make no story drift,
cross brace will be similar to shear wall, since both shear wall and braced frame are treated as sidesway prevented. But bracing member can extend due to tension, so we do get small drift.
Moment framing is usually treated as sidesway uninhibited. So when we design, we need to seperated drift into nonsway and sway frame drift. Plus column design K value will be larger.
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
You are asking very general questions without much to go by.
Can you be more specific in your question or situation?
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
I just out my thinking as above. The reason I am confused is that when I read the code book for the R VALUE and Cd value.
R Cd
ordinary moment frames of steel 4.5 4
reinforced concrete shear wall 5.5 5
reinforced masonry shear wall 4.5 4
concentrically-braced frames 5 4.5
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
But they just confused me.
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
RE: For wind load, masonry shear wall, moment frame, and cross bracing which is the best option?
In other words, they are not the values to use to determine what system is better - a higher R typically is a more expensive system - more special detailing is required, and more design time. Also, if you can, staying in the range of a steel system not detailed for seismic (R=3) is generally a good idea, as you do not have to follow AISC 341 detailing requirements.