HomeMy WebLinkAboutStructural Engineer Report 11.30.2012Group Engineering, Inc.
871 South Dudley Street
Lakewood, at 30226
1303)969-9T'4
Fax. 13031J14-8025
E Mail groupwengiraal corn
November 30 2012
FROM Bill Rose P E
TO: Mr Dan Hilgenberg
Clear Creek Construction
945 E Britton Rd
Oklahoma City OK 73 1 1
RE: Crane Runway Beam Assembly Structural Review
MCC Building Permit No. 50300; Compressor Building Permit No. 60299
Encana Story Gulch Compressor Station
Garfield County
Parachute. CO 81635
Dan
As requested have performed a structural review of the top running crane rat connections for the runway beams
on both the MCC Building (3 Ton) and Compressor Building (5 Ton) cranes for the above referenced project
The intent of this review was not to verify the structural design or overall installation of these crane rail systems as
that I5 the responsibility of the bridge crane engineer and stated vendor This letter is to provide a summary of the
review of the ASCE crane raii spot (tack) welds that were employed as a method to facilitate the erection of the
runway beam assemblies prior to the installation of the vendor detailed "J -Bolts"
After reviewing the crane construction documents and the provided pictures it appears that the overall structural
integrity has not been compromised by these welds and the intent of of the crane system is in compliance with the
attached details from the crane supplier, Arnencan Equipment, Inc Attached to this letter are these pictures
illustrating the welds and the prescribed "J -Boll" connections See the crane vendor runway beam connection
details (page 3) for additional information After reviewing the crane rayl drawings and the fact that the ASCE rail is
intended to serve as a 'runway" for the bridge support beams, l see no evidence to ndicate a diminishing of the
intended structural adequacy of this system The welds in question do not impair enter the cap channels or the rails
themselves
Please feel free to contact me if you ratire any questions regarding th s tetter
Sincerely
Bill Rose P