Plans Stagecraft
Industr Inc. FAX TRANSMITTAL
5051 N. LAGOON AVE. PORTLAND, OR 97217
P.O. BOX 4442 PORTLAND, OR 97208
PHONE 503.286.1600
FAX 503.286.3345
TO: Westgate Baptist Church DATE: 11/19/09
FAX #:
ATTENTION: Brian Dutton PAGES: 6' (including this cover page)
SCI Ref #: 609 -003 REPLY TO: Ron Winn
Your Job #: Ext. 226
SUBJECT: Track Specifications
Brian, (o,
Attached are,K pages, marked to show the track and equipment we used on your
project.
Just so you'll have some numbers in case you're asked:
Each side track and hardware (track, mounting, splices, carriers, etc.) weighs 105 lbs.
Each side curtain weighs 107 lbs.
The track is rated, using one carrier per foot, to hold 7 lbs. per carrier. You have 105
lbs. of curtain distributed over 42 carriers, equals 2.55 lbs per carrier; well below the
rated limit.
The valance weighs just under 20 lbs.
Hope this helps. Again, thanks for choosing Stagecraft. It was a pleasure working
with you. Have a good Thanksgiving.
With best regards,
4 4
Ron inn
Director of Project Management
If you do not receive all of the pages indicated above, or any portion of this transmission is illegible please contact Stagecraft Industries, Inc.
IMMEDIATELY at 503.286.1600
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CIVIL • STRUCTURAL • MECHANICAL ENGINEERS
��i ECEIVED .
JAN 2 7 2010
November 17, 2009 CITY OF TIGARD
Building Official
. BUILDING DIVISION
City of Tigard •
13125 SW Hall Blvd
Tigard, OR 97223
RE: Westgate Baptist Church
Retractable Platform — Permit No. BUP2009 -00155
Subject: Load Testing Results in lieu of Welding Special Inspections of platform frame
A load test was performed on November 12, 2009 in accordance with the Test Procedure provided in the
attached letter. The load was applied manually using 80 lb bags of premix concrete.
The load test was video recorded and reviewed. I visited the site on Friday November 13,2009 and observed
the structure after the test was complete and all load was removed. The test procedure was acceptable as .
done. No distress was observed during or after the test.
Based on the results of the test, Carlson Testing's visual inspection report, and my observations, I recommend
that the structure be accepted as constructed.
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Res•ectfully � g;F � ` ` 0117C-;;"'
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/ John F. Bradfor/ E -- O ,,GKDN > /
President • �,%fr, n i,r
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cc. Brian Dutton v B fl as��
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9925 S.W. Nimbus Avenue • Suite 110 • Beaverton, Oregon 97008 -7387 • Phone (503) 213 -2013
Facsimile (503) 213 -2018 • Email inforequest @bccengineering.com • www.bccengineering.com
A •
AL BRADFORD
CONRAD
CROW ENGINEERING CO.
Era CIVIL • STRUCTURAL • MECHANICAL ENGINEERS
November 2, 2009
Building Official
City of Tigard
13125 SW Hall Blvd
Tigard, OR 97223
RE: Westgate Baptist Church
Retractable Platform — Permit No. BUP2009 -00155
Subject: Welding Special Inspections of platform frame
Special Inspections as required by IBC Section 1704 were not provided during the fabrication of the platform
structure. Carlson Testing provided an after fabrication visual inspection of the painted welds (report attached).
They indicate that the connections meet the detail criteria and the weld profiles are acceptable and appear to
have no discontinuities. An after the fact visual inspection of painted welds, however, does not fully satisfy the
special inspection requirements.
Proposed Remedy:
1. All welded connections were evaluated for stress levels of the welds under full dead plus live load
conditions. The welds for all but two of the connection types are stressed below 50% of the available
weld capacity. None of the welds are critical seismic connections.
2. We propose accepting the welds stressed at 50% or below based on the visual observation of the
painted welds.
3. The two connection types that are stressed above 50% are the frame top chords to center pivot
connection plate and the brace connection plate to the base of the center pivot. Ref Details N7010 -02
and C/7010 -02. These connections are stressed to approximately 80% of the allowable of capacity per
the 2005 ANSI /AISC 360 -05 Specification for Structural Steel Buildings.
4. We propose a load test in accordance with AISC 360 -05 Appendix 5 section 5.4 to verify the strength of
the critical connections. The load test will consist of applying a 2800 Ib load on the end 3 feet of each of
the four frames. Each frame is to be tested individually, not all at the same time. Since the test is only
intended to test the specific welds under consideration, the entire methodology of section 5.4 will not be
implemented. Namely, structural deformations will not be measured or recorded. The connections of
concern will be visually inspected. The applied load represents 1.2 D + 1.6 L. The worst case for 40 psf
LL with the jacks in the up position or 100 psf with the jacks lowered will be represented by this test.
5. Test Procedure:
a. All bolted connections are to be tensioned prior to the Toad test.
b. Do Not lower the jacks.
c. For each load point:
i. Stack one 700 Ib pallet of material on the platform at the location shown on the
attached sketch. Observe the structure for deformation or signs of distress.
Specifically, inspect the welds of concern.
ii. Repeat for three additional pallets, stacked one above the other, observing the
structure after each increment of load.
iii. Hold the load for one hour.
9925 S.W. Nimbus Avenue • Suite 110 • Beaverton, Oregon 97008 -7387 • Phone (503) 213 -2013
Facsimile (503) 213 -2018 • Email inforequest @bccengineering.com • www.bccengineering.com
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Westgate Baptist Church November 2, 2009
Retractable Platform
Load test proposal
iv. Re- inspect the connections.
v. Remove all load.
d. Repeat the procedure for each Toad point.
6. If no distress in the connections is observed, the test will be considered successful and we will
recommend the structure be accepted.
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Renewal Date: 12/31/2009
Date Signed: 11 -02 -09
cc. Brian Dutton
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THESE PLANS AND SPECIFICATIONS, AND EI ENGINEERING AND DESIGN WORK TO WHICH THEY PERTAIN. ARE INTENDED THE PROFESSIONAL ENGINEER'S BRADFORD WESTGATE BAPTIST CHURCH
SOLELY FOR THE PROJECT SPECIFIED BRADFORD AD D CONRAD CROW CO. OITRE ALL LIABILITY IF AL
CONRAD TIGARD, OREGON
CIFI THESE PLANS ANO SPECATIONSNS. OR THE DESIGNS A ANNN ROSS ONS ATT ATTENDANT THHERETT O. ARE USED SED ON SEAL APPEARING ON THIS
ANY PROJECT OR AT ANY ERTY O LOCATION OTHER THAN THE PROJECT MD D LOCATION C RING PCO. CO PERIT TY IS S 1F B RADFD HEREIN. DROWINS APPLIES ONLY TO THE CROW ENGINEERING CO. THIS N REN DRAWING 5 THTDE E E SESI tt OF AND REUOSE F BRADFRD SDOWN CONRAD HEREO CROW N THE ENGINTHE EERING li IS MO IS ORD i0 L OW BE RENR CR OW WORK TO SHOWN ON THIS
UPON HALL N NOT BE REUSED. DISCLOSED TO OTHER RO OF B —
CIVIL • STRUCTURAL • YECHANILAL ENGINEERS
WRITTEN SANCTUARY RETRACTABLE PLATFORM
ENGINEERING CO. AND SHALL S OR COPIED, IN OR IN PMT T
DRAWING FOR THE ORIGINAL /+
WRITT EN PERMISSION. CO 510N. COPYRIGHT 2009 BRADFORD CONRAD CROW ENGINEERING CO. ALL RIGHTS RESERVESERVE D. TITLE BLOCK DESIGNATION. DECKING PLAN
THESE DRAWINGS DD NOT SHOW THE PRESENCE. CE. LOCATroN, POSrt10N, OR APPLICATION OF SAFETY MACES UPON OR I 9925 SW NIMBUS AVE. SUITE 1t0. BEAVERiON, OR 9]008 -J3B)
RROUNDING UACrr AND/OR ENUIPMENT. rr 5 THE SOLE O S UN51BILRY OF DE 01AWER, NANUFACNRER ANY µTER■l10N OR REUSE OF
AN /OR INSTALLER 70 PUCE PROPERLY ALL SAFELY DEVICES UPON OR SURROUNpNG M MD /OR EOUIPMENi
AND INSTRUCT THE OPERATORS UPON THE APPLICATION
THIS DRAWIN WITHOUT THE PH (SOT) 211 -201] FAX (503) 211-2018 WWWBCCENGWEERNG.COM
THE CONTRACTOR SHALL PRWIOF ALL AT IERULS ANO EQUIPMENT NECESSMY TO PROTECT ME STRUCTURE, WORKMEN A 7 - -09 HECKED & CORRECTED CHECKED RPD WRIREN COrvSErvT OF THE PLOT: 10/30/2009 11.18:24/11 JF9 DRAWN CHECKED SCALE GATE DRAWING NO REV.
AND OTHER PERSONS ANO PROPERTY DURING CONSTRUCTION, THE CONTRACTOR IS RESPONSIBLE FOR tHE OBSERVMCE 27 I
OF ALL FEDERAL. STATE AND LOCAL SAFETY REGULATIONS O ARING CONSTRUCTION. REV. DATE DESCRIPTION BY REV. DATE DESCRIPTION BY ENGINEER I PROHIBITED. \ \ 9 08/03/09 / 09808 - 7010 -03 A
SAVE: T: 09808 7000 \7010 -010.dA 08 03 09 3:33:15P rad R.DUMAS DI 7 -77 -09 1 I Y =1• -0• 07 -01 -09