Thanks to all the replied. I have what I think is very reliable information that a collapse occurred, but I don't know where it occurred other than the state. I would greatly appreciate if anybody who has more information would post what they know. I also have searched with Google and had nothing relevant pop up, although several other collapses of PEMB collapse did pop up.
Thanks again to all who responded and I will appreciate others continuing to respond.
I found a building in Riverside, CA that one or more frames collapsed while the rest of the building appears to be fine. All my information comes from a few pictures found by a web search so I don't know any more details. If anybody has any more information like the width of this building or the manufacturer I would appreciate whatever you can find out.
Collapse date: May 3, 2017.
Location: Riverside, CA west of I-215 on Meridian Parkway
I did a quick check of CalOSHA and did not see any citations (that often describe the building type/spans/configuration in detail) but such investigations usually take some time.
Assuming my post above is the project your refer, here is some additional info:
Building Owner: JBS USA FOOD, Inc - they produces 'case-ready' meat, pork, poultry etc.
Facility: Existing was 110,000 SF. 2017 expansion was 60,000 SF.
General Contractor: LEDCOR Group for 2017 expansion.
Based upon some photos of the collapse, I figure some 'rough' estimates that the expansion was 1 new interior frame (welded plate girder) and 1 end frame (with wind columns). Frame spacing may be 30-35 ft (?). Orthogonally, about 6 or 7 bays of 25+ foot spans, so that makes a width of somewhere around 150 ft.
No info on who the PEMB manufacturer was.
Here is a Google Earth 3D view of the site from 2017 during foundation works. Scaling, the plate girder span is 152 ft.
That is indeed the building I found. Thanks for the additional information. This site is extremely valuable and useful for all things structural. I will post additional information as I find more out.
Professional curiosity is my main interest. I work for a general contracting firm that primarily puts up pre-engineered metal buildings as well as conventional construction projects. So I am always interested in additional information about why buildings don't work. The building manufacturers are generally pretty tight lipped about why a building had problems, so if you want to learned what caused the problems you have to research the problems very diligently.
Thanks you for the additional information and pictures.
I see a lot of channel sections buckling. Channel sections should not be used as beams when not symmetrical about the vertical section. They have no load rating as such.
Channel shaped sections are used all the time as beams. Especially in pre-engineered metal buildings. Typically in that case they are called Girts or Purlins.
