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ANALYSIS OF UNISTRUT METAL FRAMING SYSTEMS USING GTS 2008 GTSUG Las Vegas, NV.

ANALYSIS OF UNISTRUT METAL FRAMING SYSTEMS USING GTS 2008 GTSUG Las Vegas, NV. Chris Wandell, PE Senior Civil Consultant June 08. Powerpoint V.2003. PRESENTATION’S PURPOSE. Illustrate the GTS UNISTRUT AISI89 Code Checking Capabilities

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ANALYSIS OF UNISTRUT METAL FRAMING SYSTEMS USING GTS 2008 GTSUG Las Vegas, NV.

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  1. ANALYSIS OF UNISTRUT METAL FRAMING SYSTEMS USING GTS2008 GTSUGLas Vegas, NV. Chris Wandell, PE Senior Civil Consultant June 08 Powerpoint V.2003 1

  2. PRESENTATION’S PURPOSE • Illustrate the GTS UNISTRUT AISI89 Code Checking Capabilities • Provide an Example of a Palo Verde Nuclear Generating Station (PVNGS) Application of the GTS UNISTRUT Code Checking Feature 2

  3. PRESENTATION OVERVIEW • PVNGS INTRODUCTION • METAL FRAMING SYSTEMS • UNISTRUT SHAPES • UNISTRUT CONNECTIONS • PVNGS ELECTRICAL RACEWAY PROJECT • GTS UNISTRUT CAPABILITIES • GTS UNISTRUT REQUESTS • QUESTIONS ? 3

  4. Safe, Clean and Reliable Electrical Power Delivered to Four Million Customers PALO VERDE NUCLEAR GENERATING STATION 4

  5. Palo Verde Nuclear Generating Station • Located ≈ 50 miles west of Phoenix in Tonopah, Arizona • 9.5 years to License, Build and Commission • Uses treated City of Phoenix sewage effluent for cooling water – 20 billion gallons/year • $11 billion (1989) Dollar Investment • $6,000,000,000 Hardware • $5,000,000,000 Interest/Financing • Over 2,000 employees; ≈ 300 engineers • Owned by 7 Utilities • Arizona Public Service: 29.1%, Salt River Project: 17.5%, Southern California Edison: 15.8%, El Paso Electric: 15.8%, PNM: 10.2%, Southern California Public Power Authority: 5.9%, Los Angeles Department of Water and Power: 5.7% • Operated by Arizona Public Service Company (established: April 29, 1886 Japanese Immigrant Hutchlon Ohnick granted a gas & electric service franchise Phoenix Illuminating Gas & Electric Light Co.) 5

  6. General System Diagram of Palo Verde Nuclear Generating Station Legend:: Safety Injection Systems Reactor Coolant System To Switchyard Containment Building Main Steam System Main Feedwater System Main Condensate System CONTAINMENT SPRAY Circulating Water System Transformer Turbine Building Auxiliary Feedwater System Cooling Tower and Fans Safety Injection Tank Moisture Separator Reheaters MSSVs ADVs 8 8 8 Steam Generator Auxiliary Building MSIV Pressurizer MTSV Control Rods MSSS Shutdown Heat Exchanger HP LP LP LP Generator Bldg. Turbine Turbine Turbine Turbine Equipment Cooling MTCV Z From Auxiliary Feedwater Pumps Containment Spray Pump Turbine Bypass Valves Reactor Core Refueling Water Tank Condensate Pump Reactor Coolant Pump Main Condenser Low Pressure Safety Injection Pump (HP) Feedwater Heaters (LP) Feedwater Heaters Circulating Water Pump High Pressure Safety Injection Pump Feedwater Regulation Valve Main Feedwater Pump Polishing Demineralizers Containment Sump • Three 1200 mwe CE “System 80” standard design PWR Units UNISTRUT Metal Framing Systems are Utilized Throughout Every Area of the Plant Estimated 30,000 Frames per Unit 6

  7. METAL STRUT FRAMING SYSTEMS • Used at PVNGS to support Nuclear Seismic Category 1/Safety-Related Electrical Raceway (Cabletray & Conduit), Instruments, Small Bore Piping, Small Equipment etc … • Consist of continuous-slot metal channels with in-turned lips and associated hardware for fastening to the channels (Strut) at random points. • Eliminates (minimizes) welding and drilling; is easily adjustable, de-mountable and re-usable. • Metal Framing System Manufacturer’s: UNISTRUT, Globe Strut, US Strut, B-Line, Flex-Strut, SuperStrut, Powerstrut 7

  8. UNISTRUT METAL FRAMING SYSTEM 8

  9. UNISTRUT METAL FRAMING SYSTEM Electrical Raceway Design Applications • PVNGS UNISTRUT Raceway Supports Structures are field-installed in accordance with approved Engineering Designs. 9

  10. UNISTRUT SHAPES IN GTS UNISTRUT 1-5/8" Channel - nine (9) different UNISTRUT cross-sections available in GTS 10

  11. UNISTRUT SHAPES IN GTS UNISTRUT 1-5/8" Channel 11

  12. UNISTRUT CONNECTIONS IN GTS 6 of the 31 Common UNISTRUT Connections available in GTS 12

  13. PVNGS ELECTRICAL RACEWAY PROJECT UNISTRUT capabilities developed for PVNGS 1992 Problem Statement: PVNGS Electrical Raceway System structural evaluations were based on an under-estimated weight of fire protection material (Thermo-lag 330-1) Project Purpose: evaluate impact of as-built Thermo-lag Protective Envelope (TPE) weight on electrical raceway (conduit) • PVNGS installed a fire protective material Thermo-Lag 330-1 on electrical raceway systems from 1983 - 1987 • NRC Generic Letter 92.08 - Thermo-Lagfire endurance, ampacity, seismic integrity, quality and Quality Assurance Program vendor data suspect 13

  14. PVNGS ELECTRICAL RACEWAY PROJECT • PVNGS committed to determine installed as-built weight of Thermo-Lag. Average weight per square foot, 1-hr fire barrier, TPE (thickness 0.80"; density 71 lbs/ft3) = 4.73 lbs/ft2 • Resultant over-weight conduit following incorporation of Thermo-lag data into raceway weight tracking database • Unit-1 = 787 overweight conduit runs • Unit-2 = 578 overweight conduit runs • Unit-3 = 449 overweight conduit runs 14

  15. Thermo-lagEnclosed Conduit Systems (5) 4” Dia. Conduit Conduit Support PVNGS ELECTRICAL RACEWAY PROJECT • 70' Auxiliary Building: Largest T-lag enclosure, Long run of T-lag along the south wall – Appendix-R, 3-hour, U13. 15

  16. PVNGS ELECTRICAL RACEWAY PROJECT 70' Auxiliary Building Conduit Supports 16

  17. PVNGS ELECTRICAL RACEWAY PROJECT 70' Auxiliary Building Conduit Support 17

  18. PVNGS ELECTRICAL RACEWAY PROJECT 70' Auxiliary Building - Typical UNISTRUT Conduit Support Details 4"φ Conduit Weight = 21.5 lb/ft TPE Weight = 73 lb/ft Conduit Support GTS Math Model 18

  19. PVNGS ELECTRICAL RACEWAY PROJECT 70' Auxiliary Building – Conduit System Conduit System GTS Math Model 19

  20. GTS UNISTRUT CAPABILITIES GTSTRUDL UNISTRUT Design • Specifically designed for nine (9) different UNISTRUT cross-sections • Code checked based on AISI "Specification for Design of Cold- Formed Steel Structural Members" adopted August 19, 1986 w/ December 11, 1989 Addendum • Design Code name = AISI89 • Table name = UNISTRUT • Profile names = P1000, P1001, P1001A, P1001B, P1001C, P10013, P1001A3, P1001C41, and P1004A ref. UNISTRUT Metal Framing, General Engineering Catalog No. 12 20

  21. GTS UNISTRUT CAPABILITIES AISI89 Code Parameters are grouped into 3 general categories: • System Parameters • System Parameters monitor SELECT and CHECK Command results (Section 7.2 of Volume 2A) • Control Parameters • Control Parameters decide provisions to be checked; specify comparison tolerances - seldom used except CODETOL • Code Parameters • Code Parameters specify information / coefficients referenced in the code 21

  22. GTS UNISTRUT CAPABILITIES PVNGS Raceway Project Code Parameters (Example) $************************************************** $ DEFINE CODE CHECK PARAMETERS $************************************************** UNITS INCH KIPS DEG FAH PARAMETERS CODE AISI89 MEMBERS GROUP 'STRUT' 'FYLD' 33. MEMBERS GROUP 'STRUT' COMSHEAR NO MEMBERS GROUP 'STRUT' CODE 78AISC MEMBERS GROUP 'CONDUIT' 'FYLD' 35. MEMBERS GROUP 'CONDUIT' PRINTSTR NO ALL SUMMARY YES ALL 22

  23. GTS UNISTRUT CAPABILITIES System Parameters – CHECK MEMBERS Results CODE CHECK command executes code provision checks and Returns top 2 highest ACTUAL/LIMITING values 23

  24. GTS UNISTRUT CAPABILITIES Troubleshoot “failed” members using the SUMMARIZE CODE CHECK command to print computed code provision values 24

  25. GTS UNISTRUT CAPABILITIES UNISTRUT Connection Analysis and Design Feature • MEMBER RELEASE command of Section 2.1.8.2 of Volume 1 modified to include a TYPE option for elastic connection specifications developed for APS connection types { 609} > MEMBER RELEASES { 610} > $*********************************** { 611} > $ UNISTRUT CONNECTIONS HANGER-5 { 612} > $*********************************** { 613} > 'H5-1' - { 614} >_START ELASTIC CONN TYPE 38 - { 615} >_END ELASTIC CONN TYPE 51 { 616} > { 617} > 'H5-6' - { 618} >_START ELASTIC CONN TYPE 38 - { 619} >_END ELASTIC CONN TYPE 48 { 620} > { 621} > 'H5-7' - { 622} >_START ELASTIC CONN TYPE 50 - { 623} >_END ELASTIC CONN TYPE 11 { 1481} > $ ***************************** { 1482} > $ * ZA 140-FT SPECTRA CONNECTION CHECK COMMAND FOLLOWS * { 1483} > $ ******************************** { 1486} > CHECK CONNECTION CAPACITY MEMBERS - { 1487} >_'H5-1' 'H5-6' 'H5-7' CHECK COMMAND NEEDS TO SPECIFY ALL MEMBERS IDENTIFIED IN RELEASE COMMAND 0.00E0 IS REPORTED FOR MEMBER ENDS WITH NO IDENTIFIED CAPACITY 25

  26. GTS UNISTRUT CAPABILITIES • Elastic Connection option in the MEMBER RELEASE command provides an elastic spring restraint between one or both ends of the member and the incident joints • ‘elastic.con’ file installed in GTSTRUDL installation directory • ASCII file contains elastic connection types, connection force/moment capacities, Translational / rotational elastic connections at the ends of the members • Free format data to be specified • Number of elastic connection types stored in file • Connection Type ID; Capacities = FX, FY, FZ, MX, MY, and MZ; followed by Spring Values = KFX, KFY, KFZ, KMX, KMY, and KMZ • Directions X, Y, and Z = local coordinate system of the member • Capacities/elastic connection springs in GTSTRUDL default units (inches, pounds, and radians) • Fixed DOF= 999999 value 26

  27. GTS UNISTRUT CAPABILITIES ‘elastic.con’ file - elastic connection specifications developed for APS connection types 27

  28. GTS UNISTRUT CAPABILITIES 28

  29. GTS UNISTRUT CAPABILITIES • GTS UNISTRUT Feature Benefits • Code Checking Capabilities greatly expedited post-processingresults - PVNGS Conduit Systems were determined to meet Seismic Category 1 requirements • UNISTRUT code check is available to all users; Documentation available upon request • Code Check based on AISI 1986 Edition (w/ 1989 Addendum) Load Capacity Determination procedures - cold formed steel equations are force-based; not stress-based equations (similar to AISC LRFD concept) 29

  30. GTS UNISTRUT REQUESTS • Provide REDRAW SOLID capabilities – Beta angles for non-symmetrical shapes are difficult to verify without REDRAW SOLID 30

  31. QUESTIONS ? 31

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