See attached image.
I am confused by the fundamental principle of defelction-derived tension in a "tightrope". I have to design a similar (but pretensioned) zipline system, and I want to make sure i am usign the correct design principles.
In the image attached, I highlight my confusion.
Is...
Right,
But it's also a question of redundancy. If the footing "would" overturn with the strength values. The attachments of the anchors past that point would seem inconsequential.
Good input guys. Typo on my end in the title.
Someone in the office was mentioning an interpretation of (b) as if the footing becomes unstable under the moment and lifts off, then the need for the anchorage to fail ductilely becomes mute, has anyone heard of this interpretation? as the...
The code reads as such....
(b) Anchor or anchor groups shall be designed for the
maximum tension that can be transmitted to the anchor or
group of anchors based on the development of a ductile
yield mechanism in the attachment in tension, flexure,
shear, or bearing, or a combination of those...
Does anyone know of a resource to clearly show when Overstrength is required based on seismic design category and building component. The information is just littered in the ACSE and some info in the ACI. A flow chart makes too much sense to not exist. Thanks in advance!
"SDWC15450 (this is the black one) is recognized for use in chemically-treated wood as described in
the evaluation report." - This is what the simpson book says - It says chemically treated not exterior use. Where most screws in the simpson book explicitly say exterior. How do you read that?
I am hoping to use some truss screws like SDWC’s. I need ones are for exterior use though, and It doesn’t look like I can use SDWC or its values exposed to weather. Anyoneknow of any exterior use truss uplift screw and have access to its values. Owner wants screws for aesthetics on an outside...
The roof attached is the one that fits the one I am designing for. The height is roughly 30'. I am not used to designing with this 0.6h number for what I would normally call "a" which is the minimum of 0.1 L and 0.4 H. This 0.6H from both sides will make the entire building a corner zone. Is...
I am familiar with the canopies section, and although I doubt it would be allowed in my scenario. My interpretation is there must be wall above the "overhang/canopy" to allow for the use of those values. With no wall a typical overhang will have wind moving a lot faster over the top than below...
