Yes, this is a fairly unusual shape for a shear wall.
Think of this as a single-story wall supporting 3-flight stairs with intermediate landings at 3 levels. For the out-of-plane seismic forces, the intermediate landings should be able to brace the wall. My inquiry is for in-plane forces.
No...
Thank you Lomarandil for your input.
Please see the sketch below to see if I'm understanding you correctly. It was interesting you said that the girder needs to be stiff. Is that because the stiffness of the girder is required to transfer the girder's weight from the lifting inserts 3 or 4 to...
Thanks, Lexpatrie for your input.
If I put boundary elements in each segment of the wall, then the entire wall will be covered with boundary elements only. As you can see in the sketch, each segment is only 3 ft in length. The wall is 18 inches in thickness. Not sure if this would be a problem...
How would you approach calculating loads on each of the lifting inserts (4 on each side, Total 8)? The inserts are mirrored to each side. Please refer to the attached image or PDF below.
Two schools of thought:
1. The load is distributed on each of the lifting inserts based on the tributary...
How would you approach the design of a special reinforced shear wall (as per ACI 318-19) with a non-uniform shape such as this? See the attached file.
Where would the boundary elements be? What would be your critical section? What height would you use for calculating the h/l ratio...
Thank you Aesur and EZBuilding for your input.
I am more concerned about the confinement of the vertical rebar at the end of the wall. If there is no 180-degree hook, what provides confinement for the last vertical rebar under flexural compression?
If I try to justify by saying that this wall...
The contractor failed to provide a 180-degree hook for the horizontal rebar at the end of the CMU wall designed to be a specially reinforced shear wall. They have asked us (EOR)if there is a way around this. Is there one?
The TMS 402-16 code explicitly states these hooks are required at the end...
As per ACI 318-14, Clause 11.7.4.1, if longitudinal reinforcement is required for axial strength or if 'Ast' exceeds 0.01*Ag longitudinal reinforcement shall be laterally supported by transverse ties. When I go to Chapter 2, Notation and Terminology, this 'Ast' is referred to as total areas of...
