11660 SW PACIFIC HIGHWAY ---- - - --- - ----- - -- - -- -- - -- - - - -- - - - — - - ---- - - -- - - - - --- - --- - - - - JUL 2 2 2008
TIGARD BOWL �. —_=--
CITY OF T IGARD u�SW Pack 0%W
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841-36 vf,
y� :IFICATION FOR TYPE I POST-TENSIONING OF TRUSS LOWER CHORDS r. ,{: �� �~_ �r "�K , �►"+�'�� f"
I. Mgbfi kl and Fabrication E. pro-atrwaing Gauipmont: PO..)r to the start of the pre-stressing of ar.y of the
cables, the gauge or gauges to be used to measure the actual load in each cable
Shall be calibrated by an app*oved independent testing agency and the ACiMIX MAP
A. Steel gsserr liter. resulting load curves shall be furnished to the registered deputy inspector or N.T.S.
other qualified person designated by the Reinforcing Engineer for the continuous =
1. Unless noted otherwise, all steel shell conform to ASTM A-36 or approved inspection on the actual ••tensior>i
equal. pecti post ng of the cables.
2. NI welding shall be performed by the shielded arc method by welders !! PnX&dure-fof Reinfrnin .-
qualified to perform welds on reinforcing steel and o;i structural steel in an
approved shop as required by the ale regulations in effect in the A, Preipatatiom The location of the cable anchorage, cable guides and other
building code jurisdiction. Pre-heat procedures and other procedures devices ris ir+ Lvted on the plans shall be checked for possible obstructions to
shall meet the minimum requirements and be in accordance wide the the performance of the work. Localized shifting of individual elements and the
TRUSS T1 (UPGRADED IN 1954) -_-____ American Welding Society Stwidard AWS DIA. No field welding or use of cable diverters to shift the alignment of the cable around immovable
field alteration of connections will be permitted without the written objeda may be required to facilitate the reinforcing work Such obstructions shall
approval of the Owners Representative, the Reinforcing Engineer and the be repotted to the Reinforcing Engineer for his resolubon prior to the start of the
Building Department prior to the Start of the Work work
3. All surfaces of the connections that are oxpossed to the air in their final Br Cables: The button anchorage(anchor cashn-and strand gripper) shall be
position in the structure shall be primed with one coat of a rust inhibitor installed on one end of each --able by the supplier prior to delivery to the site.
type of paint. Surfaces of the connection in contact with the wood The cables shall be placed as indicated on the plans with the ends of the cables
a surfaces shall be free of any foreign materials. with the button anchorages all at the same end of the member to be lire-stressed
4. Shop drawings for the modifications or itie anchorage assemblies to
1 accommodate the use of individual types of cable wichorages, pre- C. ere-Stressina-
stressing methods, andfor pre-stressing equipment shall be submitted to
the Owners Representative, t/.e Reinforcing Engineer and the Bul;Jing 1. The initial post-tensioning force in each cable will be 2,000 pounds on all
-TRUSS T2 (NO WORI()- - - - - - _ Department and NO WORK on th#wo mod ficabons will be permitted cables post-tensioned to a maximum load of 8,000 pounds or less and will
without written approval of ail parties listed on the modificatmons. be 4,000 pounds for all cables post-tensioned to a maximum load of over
8,000 pounds. At the initial load, the clear distance between the anchor
B. Pre-StressingCable: Grade 270 1/2 indi diameter sevenvnre, uncoated, stress- casting at each and of each cable shall be recorded to the nearest 1/16
relieved steel strand primarily intended for use in pre-tensioned and post- inch. On the and of tti-i cable being post-tensioned, the distance from
tensioned pre-stressed concrete with button anchorages as approved by the the end of the cable to the sten of the anchor casting shall be recorded to
Building Lode. The manufauLurer of the C8b16 shall submit the supporting test the nearest 1/16 inch.
• data on the cable to be tmd for the work The supplier of the button anchorages 4. Where cables are ��sed on each side of a member, the difference
casting and strand gripper)shall provide the data on the Code approval
acceptable to the governing building code jurisdiction. All data shall be between the load in the cables shall not exceed 2,000 pounds during the
submitted to the registered deputy inspector or other qualified person approved post-tensioning of tit two cables to avoid iateral bowing of the member.
by the Reinforcing Engineer and the Building Department 5. When a given cable is post-tensioned to the
C. @Qts: ASTM A-307 for Low-Carbon Steel Extemally and Internally Threaded g p specified load indicated in the
plans, the dear distance between the anchor castings at each end of the
Standard Fasteners• cable shall be recorded to the nearest 1116 inch. On the and of the cable
TRUSS T3 (UPGRADE THIS PROSECT) - _ - - _ - _ - being post-tension ed, the length from the and of the cable to the start of
—` D. Sher Plates: Malleable iron shear plates manufactured according to Grade the anchor casting shall be recorded to the nearest 1118 inch.
32510 of ASTM Standard A47.
III. Inspection: Continuous inspection is required during the actual post-tensioning of each
cable. This inspection will be performed by a registered Deputy inspector or other
quaVed person approved by the Owner's Representative, the Reinforcing Engineer
and the Be.4Iding Department and the costs of such inspection will be paid by the
b Owner. Additional inspection will be as required by the Owner's Representative and/or
the Building D+partment.
TRUW TO (NC WORM.)
STRUC I URAL DE13ilON NOTES AND CRITERIA
APPi_ICABLE CODES
2ooe,nterrWk-nal euldrV Code SPECIAL INSPECTION REQUIRED
State of Or
STRUCTURAL DESIGN CRIT MA
egon Strtictural Sp�ecia t Code
Roof design r m load-25 PSF O Concrete and R•Inforcing Steel
❑ Bolts Installed in Concrete
SCOPE AND INTENT OF PROJECT
Client hes requested that trues T2 and 73 be uPended end stroVdamed to meal ourmil oode. O Special Moment-Reslstirg Concrete Frame
is ongownhre generally kx*das k►elsiMbn d posl4onsioned cables a"each aided Use'cli n chord ❑ Reinforcing Steel 8 Prestressing Steel Tendons
arx;addrlorsl wood members altadred to axisling diagonal Enure web members.
TRUSS T5 (NO WORK) O Structural Welding CM OF-MAS
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O High-Strength, Bolting CoWitionOfA n""d -
DStructural Masonry la Low UK Fuliaw...410663dee,.......�
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❑ Relnforced Gypsum Concrete �� z
O insulating Concrete Fill
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❑ Spr3y Apolied Fire-Reslstive Materials
O Piling;, Drilled Piers arxi Caissons
A1R1tA'��*WEN!
C) Shotcre:r, INCLUDLr ATTAC111MM
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SeNCWWATION BOOK
o O Special Grading, Excavadon and FIWdV � 1KM. 1RALCALC5
CiEOTEC'rt REPORT
A - _ - - - - - TRUSS T6 (NO WORK) O Smoke-Control Systems .,_MISC rAOC'UMEMM
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OREGON P.O. DOX 130 TUALATIN, OREGON 97062 c{�Tm WESTERN WOOD STRUCTURES,i1ic.--y_I-o f_�._
ROOF FRAMING KEY PLAN ,� =�. ,
Fti '. l4,!° ��. 503 692-6900 FAX 503/692-6434 MAYM err T• •M• aAx Joe
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EXPIZES: rr d �� ncMsoNs Ilr�sot 800/547--5411 oA °1ED DATE —TE P01M. o 7/22/06 ,- -
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EACH SIDE OF LOWER ClK1RD 4 3/4-OX 9 1/2' M.B.Y
ELEVAT16N OF TRUSS T3
NEW FROM THE SOUTH LOOKING NORTH
STEEL ASSEMBLIES ARCHIiEi ECT/ENGINEER f CONTRACTOR:
I . ALL STEEL SHALL CONFORM TO ASTM A-36 UNLESS SHOWN AS OTHERWISE ON THE DRAWINGS. THE WELDED STEEL INSPECTION
A ON THIS PROJECT MAY
REQUIRE .,PEDAL IWSPECAS REQUIRED BY THE
BUILDING CODE. THE SPECIAL INSPECTOR SHALL BE
2. ALL. WELDING SHALL BE PERFORMED BY THE SHIELDED ARC METHOD BY 'WELDERS QUALIFIED TO EMPLOYED R'! THE OWNER OR THE ARCHITECT/ENGINEER.
PERFORM WELDS ON REINFORCING STEEL AND ON STRUCTURAL STEEL IN AN APPROVED SHOP AS PLEASE PROVIDE THE FALLOWING INFORMATION:
REQUIRED BY THE APPLICABLE REGULATIONS IN EFFECT IN THE BUILDING CODE JURISDICTION.
PRE-HEAT PROCEDURES AND OTHER W.2EDURES SHALL MEET THE MINIMUM REQUIREMENTS ® STEEL ASSEMBLIES REQUIRE SPECIAL INSPECTION
AND BE IN ACCORDANCE WITH THE AMERICAN WELDING SOCIETY STANDARD AWS DI . I .
NO FIELD WELDING OR FIELD ALTERATION OF CONNECTIONS WILL BE PERMITTED WITHOUT THE NAME OF INSPECTION AGENCY: CARLSON TESTING INC.
WRITTEN APPROVAL OF THE OWI&R'S REPRESENTATIVE, THE REINFORCING ENGINEER AND THE CONTACT NAME:
BUILDING DEPARTMENT PRIOR TO THE START OF THE WORK. —
' 3. ALL SURFACES OF THE CONNECTIONS THAT ARE EXPOSED TO THE AIR IN THEIR FINAL POSITION IN NhONL NUMBER: 503-684-3460
/ TFE STRUCTURE SHALL BE PRIMED WITH ONE COAT OF A RUST INHIBITOR TYPE OF PAINT. SURFACES NATES:
OF THE CONNECTION IN CONTACT WITH THE WOOD SURFACES SHALL BE FREE OF ANY FOREIGN MATERIALS.
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