Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Pro Audio
Varsity
Indiana State Fair Stage Collapse
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Jason Lavoie" data-source="post: 34468" data-attributes="member: 159"><p>Re: Another Stage Collapse</p><p></p><p></p><p></p><p>in a professionally engineered design, often when there are no cross-braces there's a good reason for it.</p><p>not knowing anything about the design of this structure I would guess that A: the guy lines form all of the cross-bracing that is required (the vertical truss members should never move until the tornado hits, so they will do their job supporting the vertical load just fine without additional bracing)</p><p>and B: any cross-bracing from the roof to the vertical trusses would mean that in the event that there IS some lateral sway now you've made part of the vertical rigid and the sway needs to be absorbed by whatever is left. whereas before the entire vertical could bend a bit to absorb the sway.</p><p></p><p>* I'm not a stage designer, but these are just things that come to mind as possible reasons. guy lines and the peaked roof ARE the cross-bracing in this structure. sometimes it's hard to see the forest because all these trees are in the way..</p><p></p><p>Jason</p></blockquote><p></p>
[QUOTE="Jason Lavoie, post: 34468, member: 159"] Re: Another Stage Collapse in a professionally engineered design, often when there are no cross-braces there's a good reason for it. not knowing anything about the design of this structure I would guess that A: the guy lines form all of the cross-bracing that is required (the vertical truss members should never move until the tornado hits, so they will do their job supporting the vertical load just fine without additional bracing) and B: any cross-bracing from the roof to the vertical trusses would mean that in the event that there IS some lateral sway now you've made part of the vertical rigid and the sway needs to be absorbed by whatever is left. whereas before the entire vertical could bend a bit to absorb the sway. * I'm not a stage designer, but these are just things that come to mind as possible reasons. guy lines and the peaked roof ARE the cross-bracing in this structure. sometimes it's hard to see the forest because all these trees are in the way.. Jason [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Pro Audio
Varsity
Indiana State Fair Stage Collapse
Top
Bottom
Sign-up
or
log in
to join the discussion today!