ML18354B049

LLC Response to NRC Request for Additional Information No. 164 (Erai No. 8935) on the NuScale Design Certification Application

ML18354B049
Person / Time
Site:	NuScale
Issue date:	12/20/2018
From:	Rad Z NuScale
To:	Document Control Desk, Office of New Reactors
References
RAIO-1218-63935
Download: ML18354B049 (8)

Text

RAIO-1218-63935 December 20, 2018 Docket No.52-048 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738

SUBJECT:

NuScale Power, LLC Response to NRC Request for Additional Information No.

164 (eRAI No. 8935) on the NuScale Design Certification Application

REFERENCE:

U.S. Nuclear Regulatory Commission, "Request for Additional Information No.

164 (eRAI No. 8935)," dated August 11, 2017 The purpose of this letter is to provide the NuScale Power, LLC (NuScale) response to the referenced NRC Request for Additional Information (RAI).

The Enclosure to this letter contains NuScale's response to the following RAI Question from NRC eRAI No. 8935:

03.07.02-25 This letter and the enclosed response make no new regulatory commitments and no revisions to any existing regulatory commitments.

If you have any questions on this response, please contact Marty Bryan at 541-452-7172 or at mbryan@nuscalepower.com.

Sincerely, Zackary W. Rad Director, Regulatory Affairs NuScale Power, LLC Distribution: Gregory Cranston, NRC, OWFN-8G9A Samuel Lee, NRC, OWFN-8G9A Marieliz Vera, NRC, OWFN-8G9A : NuScale Response to NRC Request for Additional Information eRAI No. 8935 NuScale Power, LLC 1100 NE Circle Blvd., Suite 200 Corvalis, Oregon 97330, Office: 541.360.0500, Fax: 541.207.3928 www.nuscalepower.com

RAIO-1218-63935 :

NuScale Response to NRC Request for Additional Information eRAI No. 8935 NuScale Power, LLC 1100 NE Circle Blvd., Suite 200 Corvalis, Oregon 97330, Office: 541.360.0500, Fax: 541.207.3928 www.nuscalepower.com

Response to Request for Additional Information Docket No.52-048 eRAI No.: 8935 Date of RAI Issue: 08/11/2017 NRC Question No.: 03.07.02-25 10 CFR 50 Appendix S requires that the safety functions of structures, systems, and components (SSCs) must be assured during and after the vibratory ground motion associated with the Safe Shutdown Earthquake (SSE) through design, testing, or qualification methods.

Tables 3.7.2-23, 24 and 25 in the FSAR respectively provide SSI analysis results for one particular example shell, beam, and solid element, respectively. However, analysis results at other key locations are not provided. The applicant is requested to provide the design-basis seismic demands (e.g., forces, moments, soil pressures, accelerations, displacements, ISRS),

at all applicable critical section locations of the RXB and CRB, that are used in structural design evaluations in FSAR Sections 3.8.4 and 3.8.5.

NuScale Response:

The following is a list of tables and figures of accelerations and in-structure response spectra (ISRS) at critical section locations used in the structural design evaluations of the reactor building (RXB) and control building (CRB) in FSAR Sections 3.8.4 and 3.8.5:

Section 3.7 Tables o FSAR Table 3.7.3-13 provides bioshield accelerations.

Section 3.7 Figures o FSAR Figures 3.7.1-1 and 3.7.1-2 provide horizontal and vertical certified seismic design response spectra (CSDRS).

NuScale Nonproprietary

o FSAR Figures 3.7.1-3 and 3.7.1-4 provide horizontal and vertical high frequency certified seismic design response spectra (CSDRS-HF).

o FSAR Figures 3.7.1-5a through 3.7.1-10f provide original and CSDRS/CSDRS-HF-compatible time histories.

o FSAR Figures 3.7.2-36 & 37, and Figures 3.7.2-40 through 45 provide maximum wall accelerations from ANSYS for the fluid-structure interaction (FSI) analysis.

o FSAR Figures 3.7.2-107 through 3.7.2-122b provide ISRS for the RXB and CRB floors, NuScale Power Module (NPM) restraints, and reactor building crane (RBC) wheels.

o FSAR Figures 3.7.2-156 through 3.7.2-163 provide ISRS for the containment vessel (CNV) skirt and lug support locations at NPMs 1 and 6.

o FSAR Figure 3.7.3-4a, Figure 3.7.3-4b, and Figure 3.7.3-4c provide ISRS for the bioshields.

Section 3.8 figures o FSAR Figures 3.8.5-17 through 3.8.5-25 provide input acceleration time histories for Soil Types 7, 8, and 11, used for the RXB nonlinear sliding analysis.

o FSAR Figures 3.8.5-28 through 3.8.5-33 provide Capitola input acceleration time histories for Soil Type 11, used for the CRB basemat nonlinear analysis.

The following is a list of tables and figures of soil pressures used in the structural design evaluations of the RXB and CRB in FSAR Sections 3.8.4 and 3.8.5:

Section 3.7 Tables o FSAR Table 3.7.2-48: North RXB Wall Soil Pressure Comparison Section 3.8 Tables o FSAR Table 3.8.4-15: Seismic and Static Soil Pressures on CRB Walls for Standalone Model o FSAR Table 3.8.4-16: Seismic and Static Soil Pressures on CRB Walls for Triple Building Model o FSAR Table 3.8.4-17: Enveloping Seismic Soil Pressures on CRB Walls o FSAR Table 3.8.4-18: Seismic and Static Soil Pressures on RXB Walls for Standalone Model NuScale Nonproprietary

o FSAR Table 3.8.4-19: Seismic and Static Soil Pressures on RXB Walls for Triple Building Model o FSAR Table 3.8.4-20: Enveloping Seismic Soil Pressures on RXB Walls o FSAR Table 3.8.5-9: CRB Total Static Lateral Soil Pressure o FSAR Table 3.8.5-13: Average Soil Bearing Pressures (Toe Pressures) along Edges of RXB Basemat o FSAR Table 3.8.5-15: Average Soil Bearing Pressures (Toe Pressures) along Edges of CRB Basemat Section 3.8 Figures o FSAR Figure 3.8.4-27: Total Static Lateral Soil Pressure Distribution Reactor Building o FSAR Figure 3.8.4-28: Seismic Soil Pressures on CRB Walls of Standalone Model o FSAR Figure 3.8.4-29: Seismic Soil Pressures on CRB Walls of Triple Building Model o FSAR Figure 3.8.4-30: Enveloping Seismic Soil Pressures on CRB Walls of Standalone and Triple Building Models o FSAR Figure 3.8.4-31: Seismic Soil Pressure on RXB Walls from Standalone Model o FSAR Figure 3.8.4-32: Seismic Soil Pressure on RXB Walls from Triple Building Model o FSAR Figure 3.8.4-33: Enveloping Soil Pressure on RXB Walls by Standalone and Triple Building Models o FSAR Figure 3.8.5-37: Static Soil Pressure on CRB Outer Walls o FSAR Figure 3.8.5-38: CRB Static Soil Pressure from Poisson's Ratio Effect -

Soil Type 11 o FSAR Figure 3.8.5-39: CRB Static Soil Pressure from Poisson's Ratio Effect -

Soil Type 7 The following is a list of tables and figures of displacements used in the structural design evaluations of the RXB and CRB in FSAR Sections 3.8.4 and 3.8.5:

Section 3.7 Tables o FSAR Table 3.7.2-26: Selected Reactor Building Locations for Relative Displacement NuScale Nonproprietary

o FSAR Table 3.7.2-27: Selected Control Building Locations for Relative Displacement Calculation o FSAR Table 3.7.2-28: Relative Displacement at Selected Locations on Reactor Building o FSAR Table 3.7.2-29: Relative Displacement at Selected Locations on Control Building o FSAR Table 3.7.2-44: Relative Displacement at Critical Locations of Standalone CRB Model o FSAR Table 3.7.2-47: Comparison of RXB Relative Displacements between 7P and DM Section 3.8 Tables o FSAR Table 3.8.5-7a: Displacement at Bottoms of Foundations of Uncracked Triple Building Model o FSAR Table 3.8.5-7b: Displacement at Bottoms of Foundations of Cracked Triple Building Model o FSAR Table 3.8.5-11: Reactor Building Sliding Displacements for Soil Type 7, 8 and 11 (Dead Weight + Buoyancy) o FSAR Table 3.8.5-12: Control Building Sliding and Uplift Displacements for Soil Type 7 and 11 o FSAR Table 3.8.5-17: CRB Tunnel Foundation Corner Displacements Section 3.7 Figures o FSAR Figure 3.7.2-94: Reactor Building Locations Selected for Relative Displacement o FSAR Figure 3.7.2-95: Control Building Locations Selected for Relative Displacement Section 3.8 Figures o FSAR Figure 3.8.5-50: Relative Displacement (Uplift) at Location A (S11 -

Vertical Excitation) o FSAR Figure 3.8.5-51: Lateral Relative Displacements (Sliding) at Location A (S11 - Vertical Excitation) o FSAR Figure 3.8.5-53: Lateral Relative Displacements (Sliding) at Location A (S7

- E-W Excitation)

NuScale Nonproprietary

o FSAR Figure 3.8.5-54: Lateral Relative Displacements (Sliding) at Location B (S7

- E-W Excitation) o FSAR Figure 3.8.5-55: Lateral Relative Displacements (Sliding) at Location C (S7 - E-W Excitation) o FSAR Figure 3.8.5-56: Lateral Relative Displacements (Sliding) at Location D (S7 - E-W Excitation) o FSAR Figure 3.8.5-57: Lateral Relative Displacements (Sliding) at Location A (S7

- N-S Excitation) o FSAR Figure 3.8.5-58: Lateral Relative Displacements (Sliding) at Location B (S7

- N-S Excitation) o FSAR Figure 3.8.5-59: Lateral Relative Displacements (Sliding) at Location C (S7 - N-S Excitation) o FSAR Figure 3.8.5-60: Lateral Relative Displacements (Sliding) at Location D (S7 - N-S Excitation) o FSAR Figure 3.8.5-61: Lateral Relative Displacements (Sliding) at Location A (S11 - E-W Excitation) o FSAR Figure 3.8.5-62: Lateral Relative Displacements (Sliding) at Location B (S11 - E-W Excitation) o FSAR Figure 3.8.5-63: Lateral Relative Displacements (Sliding) at Location C (S11 - E-W Excitation) o FSAR Figure 3.8.5-64: Lateral Relative Displacements (Sliding) at Location D (S11 - E-W Excitation) o FSAR Figure 3.8.5-65: Lateral Relative Displacements (Sliding) at Location A (S11 - N-S Excitation) o FSAR Figure 3.8.5-66: Lateral Relative Displacements (Sliding) at Location B (S11 - N-S Excitation) o FSAR Figure 3.8.5-67: Lateral Relative Displacements (Sliding) at Location C (S11 - N-S Excitation) o FSAR Figure 3.8.5-68: Lateral Relative Displacements (Sliding) at Location D (S11 - N-S Excitation) o FSAR Figure 3.8.5-69: Lateral Relative Displacements (Sliding) at Location A (S8

- E-W Excitation) o FSAR Figure 3.8.5-70: Lateral Relative Displacements (Sliding) at Location B (S8

- E-W Excitation) o FSAR Figure 3.8.5-71: Lateral Relative Displacements (Sliding) at Location C (S8 - E-W Excitation)

NuScale Nonproprietary

o FSAR Figure 3.8.5-72: Lateral Relative Displacements (Sliding) at Location D (S8 - E-W Excitation) o FSAR Figure 3.8.5-73: Lateral Relative Displacements (Sliding) at Location A (S8

- N-S Excitation) o FSAR Figure 3.8.5-74: Lateral Relative Displacements (Sliding) at Location B (S8

- N-S Excitation) o FSAR Figure 3.8.5-75: Lateral Relative Displacements (Sliding) at Location C (S8 - N-S Excitation) o FSAR Figure 3.8.5-76: Lateral Relative Displacements (Sliding) at Location D (S8 - N-S Excitation)

The bounding static, dynamic (seismic), and final design forces and moments at critical sections are provided in response to RAI 8971, Question 03.08.04-11.

Impact on DCA:

There are no impacts to the DCA as a result of this response.

NuScale Nonproprietary