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Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL

GTSTRUDL User's Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL. 2. 1. About KOPEC and Nuclear Power Plant in Korea2. Seismic Analysis in Nuclear Power Plant3. Developing Computer Program VDAS4. Conclusion. CONTENTS. GTSTRUDL User's Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL.

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Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL

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    1. Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 2003. 06 YoonHo Nam, PE

    2. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 2 1. About KOPEC and Nuclear Power Plant in Korea 2. Seismic Analysis in Nuclear Power Plant 3. Developing Computer Program VDAS 4. Conclusion CONTENTS

    3. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 3 1. About KOPEC and Nuclear Power Plant in Korea KOPEC(Korea Power Engineering Company) has been designing nuclear power plants and fossil power plants as an Architectural Engineer. It performs technical central role in the power industry by supporting all the necessary information on engineering, procurement, construction management start-up and maintenance. KOPEC has established its firm position in the domestic power industry by continuous investment and effort since its founding in 1975. KOPEC designed 11 NPPs and has been designing 8 NPPs in Korea.

    4. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 4 The Characteristics of Korean Standard Nuclear Power Plant(KSNP) 1. About KOPEC and Nuclear Power Plant in Korea

    5. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 5 Layout of Korean Standard Nuclear Power plant(KSNP) 1. About KOPEC and Nuclear Power Plant in Korea

    6. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 6 2. Seismic Analysis in Nuclear Power Plant CONTENTS

    7. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 7 The Analysis Method and Results of Seismic Analysis in NPP Analysis Method : Response Spectrum Analysis and Time History Analysis Analysis Results FRS(Floor Response Spectrum) 3-Directions(NS, EW, VT) FRSs of each floor level are required. FRS provide to equipment vender for designing seismic qualification of Equipment. FRS use to design of sub-structures or sub-system PVRC Damping Response Spectrum is used to analyze safety-related Safety Related Piping System Seismic Forces and Displacement To design Shear Walls using Results of Seismic Forces and Moment on Shear Walls To design Beams, Slabs and Columns using Results of Seismic Displacement 2. Seismic Analysis in NPP

    8. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 8 Seismic Input motions The ground input motion for seismic analysis is defined either by the Design Ground Response Spectra (DGRS) or by the artificial synthetic acceleration time histories. The peak ground accelerations of artificial time histories are 0.10g and 0.20g for horizontal and vertical shall be applied, respectively, for Operating Basis Earthquake (OBE) and Safe Shutdown Earthquake(SSE). The DGRS which comply with USNRC RG. 1.60 requirements for both OBE and SSE are applied for the response spectrum analysis that is to obtain seismic forces for the design of structural members. The artificial time histories are used in the analyses to develop floor response spectra. A set of input acceleration time histories for three orthogonal directions is generated. 2. Seismic Analysis in NPP

    9. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 9 2. Seismic Analysis in NPP Creating Artificial Time Histories by SRP 3.7.1 A set of acceleration time histories composed of two horizontal components (east-west and north-south) and one vertical component is artificially generated by a numerical simulation method. Duration : 24 sec, Time Step : 0.005 sec, Peak Acceleration : 0.2g Regulatory Requirement Check for creating artificial time histories Design Response Spectra Enveloping Requirement Power Spectral Density Function Requirement

    10. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 10 2. Seismic Analysis in NPP

    11. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 11 2. Seismic Analysis in NPP

    12. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 12 2. Seismic Analysis in NPP

    13. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 13 2. Seismic Analysis in NPP Seismic Analysis Model Mathematical Lumped Mass Stick Model is composed from actual Structures 3D FE full Model is used comparison of Dynamic Characteristics with Beam Stick Model Developing Seismic Mathematical Lumped Mass Stick Model Calculating Lumped Mass(mass and mass inertia) and Stick Section properties(Area & Moment of inertia, etc) from structures(Wall, Column, Slab) and equipment. To consider torsional effect mass center and stiffness center is connected by rigid link.

    14. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 14 Code and Standards USNRC Regulatory Guide 1.60, "Design Response Spectra for Seismic Design of Nuclear Power Plants (10/73) USNRC Regulatory Guide 1.61, "Damping Values for Seismic Design of Nuclear Power Plants USNRC Regulatory Guide 1.92, "Combining Modal Responses and Spatial Components in Seismic Response Analysis (12/74) USNRC Regulatory Guide 1.122, "Development of Floor Design Response Spectra for Seismic Design of Floor-Supported Equipment or Components (9/76) USNRC Standard Review Plan 3.7.1, "Seismic Design Parameters USNRC Standard Review Plan 3.7.2, "Seismic System Analysis ASCE Standard 4-86, "Seismic Analysis of Safety-Related Nuclear Structures and Commentary on Standard for Seismic Analysis of Safety-Related Nuclear Structures," ASCE, Sep. 1986. 2. Seismic Analysis in NPP

    15. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 15 2. Seismic Analysis in NPP

    16. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 16 2. Seismic Analysis in NPP

    17. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 17 3. Developing Computer Program VDAS CONTENTS

    18. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 18 Procedure of Seismic Analysis in NPP and Developing Method of Pre/Post processor VDAS using GTSTRUDL 3. Developing Computer Program VDAS

    19. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 19 The Starting Menu of VDAS 3. Developing Computer Program VDAS

    20. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 20 Inputting Structural Element Menu 3. Developing Computer Program VDAS

    21. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 21 Creating Lumped Mass Stick Model using Data Base 3. Developing Computer Program VDAS

    22. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 22 Creating GTSTRUDL Input File from DB 3. Developing Computer Program VDAS

    23. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 23 3. Developing Computer Program VDAS Used GTSTRUDL Command Constraint mass center joint and corner node TYPE RIGID SOLID Calculate Modal Damping with Mass Matrix Define the damping properties with material characteristics P/C : 5%, R/C : 7%, Piping : 3%, Water : 0.5% INERTIA OF JOINTS WEIGHT WITH DAMPING RATIO RESPONSE DAMPING INPUT 0.0 STIFFNESS 0.0 MASS 1.0 COMPUTE MODAL DAMPING RATIOS Response Spectrum Analysis PERFORM RESPONSE SPECTRUM ANALYSIS COMPUTE RESPONSE SPECTRUM DISPLACEMENTS MODAL COMBINATIONS DSM RMS LIST RESPONSE SPECTRUM DISP Transient Time History Analysis PERFORM TRANSIENT ANALYSIS CREATE RESPONSE SPECTRUM ACCELERATION VS FREQUENCY FILE 'RHO-001X'

    24. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 24 Execution GTSTRUDL 3. Developing Computer Program VDAS

    25. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 25 Mode Shape for Lumped Stick Model 3. Developing Computer Program VDAS

    26. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 26 3. Developing Computer Program VDAS The automatically generated input file by VDAS contained coutput command, so the output files automatically created by GTSTRUDL consist of 3 extension names(eig, mod, frs). The eig output contained mode shape, eigen vector, eigen solution. VDAS summarize eigen analysis results from GTSTRUDL output. The mod output contained modal displacement of mass joints. Itll be used for calculating shear wall forces and moments. The frs output contained Response Spectrum(RS) with various damping values and Response Time History(TH) of each joints. VDAS separates GTSTRUDL output file each RS and TH files. If GTSTRUDL output have 10 joints RS and TH results, VDAS create 10 RS files and 10 TH files for creating widening Response Spectrum.

    27. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 27 3. Developing Computer Program VDAS

    28. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 28 3. Developing Computer Program VDAS

    29. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 29 3. Developing Computer Program VDAS

    30. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 30 3. Developing Computer Program VDAS

    31. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 31 3. Developing Computer Program VDAS

    32. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 32 3. Developing Computer Program VDAS

    33. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 33 3. Developing Computer Program VDAS

    34. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 34 3. Developing Computer Program VDAS

    35. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 35 4. Conclusion CONTENTS

    36. GTSTRUDL Users Group Annual Meeting 2003 Developing Computer Program VDAS and Seismic Analysis in Nuclear Power Plant using GTSTRUDL 36 4. Conclusion The GTSTRUDL is satisfied the for use of seismic analysis in NPP with various regulations and code requirements. The pre/post processor program VDAS has special features as below: Easily creating for seismic lumped mass stick model and GTSTRUDL input file using MS-ACCESS Data base. Automatic execution GTSTRUDL Enveloping/Widening Response Spectrum for designing sub-structure Making PVRC Damping Response Spectrum for analyzing Piping Stress Distributing Shear wall Force and Moment for designing shear wall

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