2K Cold Box Internal Piping Flexibility Analysis - … 2K Cold Box Internal Piping Flexibility Analysis Note Number: 79222-P0003, Rev. A Author(s): Shirley Yang Page 1 of 21

CSA Documentation-Calculations

Title: 2K Cold Box Internal Piping Flexibility Analysis

Note Number: 79222-P0003, Rev. A

Author(s): Shirley Yang Page 1 of 21

CSA Documentation - 2K Cold Box Internal Piping Flexibility Analysis Page 1

2K Cold Box Internal Piping Flexibility Analysis

Revision History:

Revision Date Released Description of Change

- 12/15/2017 Original release, Issued for Project use

A 2/26/2018 - Changed casing and its nozzle material from SA-240-304 to SA-240-304L.

- Changed the size of PV41212 and its upstream pipe to be 2 inch.

- Changed the maximum design temperature and pressure to be 120F and 15 psi for transportation case.

- Separated the analysis cases for operation without seismic loads and operation with seismic loads.

- Added displacement results for all control valves.

Issued for Project Use

Shirley Yang

Mechanical Engineer

Cryogenic Engineering Group

Jefferson Lab

Fredrik Fors

Mechanical Engineer

Mechanical Engineering Group

Jefferson Lab

Nate Laverdure

Mechanical Engineer

Cryogenic Engineering Group

Jefferson Lab

Joseph Matalevich

LCLSII Cold System Manager

Mechanical Engineering Group

Jefferson Lab

Approved: 2/28/2018; E-Sign ID : 360772; signed by: DCG: T. Fuell; O.: S. Yang; Re. 1: F. Fors; Re. 2: N. Laverdure; Re. 3: J.






Table of Contents

1.0 Introduction ............................................................................................................................................ 3 2.0 Piping Design Scope............................................................................................................................... 3 3.0 Seismic Load Calculation ....................................................................................................................... 6 4.0 Allowable Stress ..................................................................................................................................... 9 5.0 Load Cases ........................................................................................................................................... 10 6.0 Piping Flexibility Analysis ................................................................................................................... 11

6.1 Normal Operation without seismic effect .......................................................................................... 12

6.2 Normal operation with seismic load effect ........................................................................................ 16

6.3 Transportation Mode ......................................................................................................................... 18

7.0 Summary / Conclusions ........................................................................................................................ 20 8.0 Associated Analysis Files & Documents .............................................................................................. 20 9.0 References ............................................................................................................................................ 21







1.0 Introduction

The purpose of this Engineering Note is to document the analysis that was performed to ensure the LCLS-

II 2K cold box piping design is suitable for all operating and occasional (seismic and transportation) loads.

2.0 Piping Design Scope

All piping is designed in accordance with ASME B31.3 Process Piping, 2014 Edition [1] and local

requirements. These local requirements include the 2013 California Building Code (CBC) [2], its

reference standard ASCE 7-10 [3], and the Cryogenic Plant Seismic Design Criteria [4].

Figure 1: LCLS-II 2K Cold Box Internal Piping System

The drawing information of components included in the analysis and the pressure-temperature design

parameters for the 2K cold box internal piping system are summarized below.

Table 1: Drawing Information of Components Included in the Analysis







Drawing Number Drawing Title Drawing Revision

Drawing Type

79222-0031 Vessel Top Section Assembly A Assembly

79222-0061 PIPE SPOOL – TL TO CC1 - Assembly

79222-0062 PIPE SPOOL – CC1 TO CC2 - Assembly




79222-0067 PIPE SPOOL – CC5 TO SCB-CC5-1 - Assembly

79222-0068 PIPE SPOOL – SCB-CC6-1 TO CC6 - Assembly

79222-0069 PIPE SPOOL – CC6 TO PV41160 - Assembly

79222-0070 PIPE SPOOL – PV41160 TO PV14470 - Assembly

79222-0071 PIPE SPOOL – SCB-BYP-1 TO PV41565 - Assembly

79222-0072 PIPE SPOOL – PV41170 TO SCB-CCR-1 - Assembly

79222-0073 PIPE SPOOL – PV41170 TO PV41212 A Assembly

79222-0074 PIPE SPOOL – PV41212 TO PV41510 A Assembly

79222-0075 PIPE SPOOL – SCB-LHD-1 TO PV41500 - Assembly

79222-0076 PIPE SPOOL – PV41500 TO EHTR - Assembly

79222-0079 PIPE SPOOL – EHTR TO CC1 INLET - Assembly

79222-0081 PIPE SPOOL – MV41382 BRANCH - Assembly

79222-0082 PIPE SPOOL – MV41162 BRANCH - Assembly

79222-0083 PIPE SPOOL – PV41500 BRANCH - Assembly




79222-0088 PIPE SPOOL – PV 41550 BRANCH - Assembly


79222-0105 HEATER ASSEMBLY - Assembly

C4118-A-100-A2 SLAC COLD COMPRESSOR 1 (CC1) A Assembly





C4118-A-150-A2 SLAC COLD COMPRESSOR 6 (CC6( A Assembly

Table 2: Design Parameters







System

Operation Transportation

Design Temperature Range (°F)

Design Pressure (psig)

Design Temperature Range

(°F)

Design Pressure (psig)

2K CBX Internal Piping

-452 – 70 60 0 – 120 15

The size, material and schedule for each piping component are specified on the design drawings. The

general properties are summarized in Table 3 below.

Table 3: Piping System Spec

Line Pipe Size Pipe Material Pipe Schedule

Transfer Line to CC1 Inlet 10” / 6” A312-TP304/304L 10S

CC1 Outlet to CC2 Inlet 6” / 8” / 5” A312-TP304/304L 10S



CC4 Outlet to CC5 Inlet 3” / 4” A312-TP304/304L 10S

CC5 Outlet to 5-3/16” bayonet 3” / 4” A312-TP304/304L 10S

5-3/16” Bayonet to CC6 Inlet 4” / 3” A312-TP304/304L 10S

CC6 Discharge to 4K CBX 4” A312-TP304/304L 10S

CCs Bypass 1” / 2-1/2” A312-TP304/304L 10S

CC6 Discharge 1” Thermal Relief 1” A312-TP304/304L 10S

CC6 Discharge ½” Thermal Relief 1/2” A312-TP304/304L 40

3 ATM Warm Helium Injection 1/2” A312-TP304/304L 40

Heat Piping to CC1 Suction 2” / 4” A312-TP304/304L 10S

PV41500 - control valve to CC1 Suction 2.17” OD A312-TP304/304L 0.079”

PV41212 – CCs bypass control valve 1.496” OD A312-TP304/304L 0.047”

PV41160, PV41170 and PV41565 – CC6

Discharge Control valves 4.76” OD A312-TP304/304L 0.098”

5-3/16” Bayonet 5-3/16” OD A312-TP304/304L 0.049”







The pipes are assumed to be electric fusion welded tubes with a single butt seam (Basic Quality Factor,

Ej = 0.8 per Table A-1B in B31.3). All other ASTM A312 tube fabrication methods with higher quality

factors are therefore acceptable.

3.0 Seismic Load Calculation

The ASCE 7-10 chapter 13 Seismic Design Requirements for Nonstructural components in conjunction

with ASME B31Ea-2010 [5] and the LCLS II Cryogenic Plant Seismic Design Criteria are used to

perform the seismic load calculations.

The site seismic design parameters include Site Class C, SD1 = 1.013 and SDS =1.968. The Component

Amplification Factor is 2.5 per ASCE 7-10 Table 13.5-1. The Response Modification factor is 6 and the

Redundancy Factor is 1. To be conservative, 1.5 is used as the Importance Factor and 1 is used as the

Height Ratio.

Table 4 summarizes the seismic design parameters and the calculated accelerations in both horizontal

and vertical directions.

Table 4: 2K CB Seismic Load Calculation

There are two general approaches to consider the seismic effect. The first one is the Strength Design

method (LFRD) per ASCE 7-10 12.4.2.3. The other one is the Allowable Stress Design method (ASD)

per ASCE 7-10 12.4.2.3. The ASD method is used for the internal piping system analysis. The basic case

combinations are listed in Table 5.







Table 5: Basic Loads Case Combinations with Seismic Load Effect

Where

D – dead load or weight.

0.14SDS – vertical seismic acceleration.

QE – effects of horizontal seismic forces. Where required by Section 12.5.3 or 12.5.4, such effects shall

result from application of horizontal forces simultaneously in two directions at a right angle to each

other.

ρ – redundancy factor.

Using 1.476W for QE (calculated per ASCE 7-10 12.8) and a value of 1 for the redundancy factor ρ, the

above load combinations can be written in the Table 6:

Table 6: Basic Case Combinations with Seismic Load Effect – after calculation

ASD Basic Combinations from ASCE 7-10 12.4.2.3

5. 1.28D ±1.03W (horizontal direction) ±0.31W (30% orthogonal) 8. 0.32D ±1.03W (horizontal direction) ±0.31W (30% orthogonal)

Since the piping system is not symmetrical to the coordinate system, 16 different acceleration load cases

need to be considered. They are listed in Table 7, calculated from the definitions in Table 6.







Table 7: Seismic Loads Combinations

Please note, the static earthquake acceleration loads applied to the analysis are listed in Table 8 below:

Table 8: Seismic Loads Applied to the Analysis







4.0 Allowable Stress

The material of the internal piping system is 304/304L stainless steel. But the material of the piping system

on the cold compressors is 304L stainless steel. To be conservative, the allowable stress for 304L stainless

steel is used. Per 302.3.5, ASME B31.3, the stresses due to the sustained loads, SL, shall not exceed Sh;

the stresses due to the expansion loads, shall not exceed SA.

Where,

Sh – Basic allowable stress at maximum metal temperature expected during the displacement cycle under

analysis. It is taken from Table A-1 of ASME B31.3, which is 16.7 ksi,

Sc – Basic allowable stress at minimum metal temperature expected during the displacement cycle

under analysis. It is 16.7 ksi per Table A-1 of ASME B31.3,

f – Stress range factor. It is 1 per calculation,

SA – Allowable displacement stress range, which is 25 ksi per the equation below

SA = f * (1.25Sc + 0.25Sh)

Per B302.3.6, ASME B31-1, the sum of the longitudinal stresses, SL, due to the sustained loads, such as

pressure and weight, and of the stresses produced by occasional loads, such as transportation, wind or

earthquake, may be as much as 1.33 times the basic allowable stress Sh. Therefore, the allowable stress

for Occasional loads is 22.2 ksi.







5.0 Load Cases

The piping flexibility and loads on cold compressor nozzles, control valves as well as on the bayonets

need to be checked for the shipping mode, the normal operation mode without seismic effect and the

normal operation plus seismic effect mode. The design goals are, for normal operation mode without

seismic effect, the nozzle loads on the cold compressor casings should not exceed the given allowable

loads from Air Liquide; for transportation and normal operation mode with seismic effect, the stresses

on the casings and other piping system components should not exceed the allowable stress of

corresponding material.

There are two shipping cases. The first case is a 1.5g acceleration in two lateral directions plus the self-

weight load; the second case is a ±3g vertical acceleration plus the self-weight [6]. 15 psi positive

pressure and a temperature range of 0 - 120 F are assumed during transportation.

Table 9: TransportationLoads Combinations (include the self-weight)

Case Ex (g) Ey (g) Ez (g) Temp. 1 (°F) Temp. 2 (°F)

TR1 1.5 -1 1.5 120 0

TR2 1.5 -1 -1.5 120 0

TR3 -1.5 -1 1.5 120 0

TR4 -1.5 -1 -1.5 120 0

TR5 0 -4 0 120 0

TR6 0 2 0 120 0

For the normal operation mode, the design load combinations are specified in ASME B31.3 and ASCE

7-10 2.3.2. The ASCE 7-10 loads cases are showing in Table 5 above. The ASME B31.3 code required

combinations are below.

Hoop Gravity + Pressure

Sustained Minimum to Maximum Temperature

Expansion Ambient/Install Temperature to Case Temperature

Occasional Sustained + Earthquake / transportation acceleration

The table below summarizes the load combinations applied to the various piping system.

Table 10: Loads Combination and Allowable Limits

Combination Component Allowable Limit Reference

Hoop Pipe Stress Ej×S 304.1.2

Sustained Pipe Stress S 302.3.5(c)

Expansion Pipe Stress SA 302.3.5(d)

Occasional Pipe Stress 1.33 S 302.3.6

ASCE 7-10 - Stress Pipe Stress 1.33 S 302.3.6







6.0 Piping Flexibility Analysis

Figures 2 and 3 show 3D piping analysis models created in Bentley AutoPIPE. The first model in

Figure 2 includes the casings and extension necks of the cold compressors, where the necks are rigidly

anchored. This model is used for the analysis of transportation cases and normal operation with seismic

effects, since the stresses in the extension necks and casings can be checked directly. Please note that the

casing and nozzles were modeled based on the measured or calculated dimensions.

The second model does not include the cold compressor casings and extension necks, so the inlet and

outlet nozzles are anchored instead. This model is used for the operation loads cases without seismic

effects. The force and moment reactions on casing nozzles are extracted from this case to compare them

with the given allowable loads on nozzles. The control valves, female bayonets and other small pipes are

also anchored at the end of vacuum jacket pipes.

Figure 2: 3D Model of the 2K Cold Box Internal Piping System with Casing and Extension Necks







Figure 3: 3D Model of 2K Cold Box Internal Piping System without Casing and Extension Necks

6.1 Normal Operation without seismic effect

The design goal is to make sure the force and moment reactions on the cold compressor casing nozzles

are less than the allowable loads provided by the vendor, Air Liquide. This is in addition to meeting the

stress requirements of the cold box piping system and bayonets, as well as the stress and deformation

requirements of the control valves. To reach this goal, the model shown in Figure 3 is used for this

analysis.

Table 11: Maximum Loads Summary – Operation without Seismic Effect

Combination Maximum Stress Ratio

(Calculated/Allowable) Node Load Case

Hoop 0.185 AT09 Pmax

Sustained 0.170 BN01 Grav. + Pmax

Expansion 0.486 BP02 Amb. to design

temperature T







A stress ratio plot for the analyzed model is provided below in Figure 4. The maximum stress ratio for

each combination and the node where this stress occurs is provided in Table 11. As the figure and table

demonstrate, the systems stresses are below allowable for all load cases and combinations.

Figure 4: AutoPIPE LCLSII 2K Cold Box Internal Piping Model Stress Plot – Operation without

Seismic Effect

The maximum displacement for each combination and the nodes where this movement occurs are

provided in Table 12 below.

Table 12: Maximum Displacement Summary – Operation without Seismic Effect

Combination Maximum Displacement

(in) Node Load Case

Hoop 1.41E-3 AT07 Max P

Sustained 0.040 AY02 Grav. + Pmax

Expansion 0.468 BP05 Amb to design

temperature T







The distance from the node BP05 to the nearest line is 14”, so the piping system has enough space to

move around. Therefore a maximum displacement of 0.47” is considered acceptable.

The reactions at the casing inlet and outlet nozzles are listed in the Table 13. The allowable loads from

the Air Liquide drawings of the cold compressor casings are summarized in Table 14.

Table 13: Casing Inlet & Outlet Nozzle Reaction Summary – Operation without Seismic Effect

Point Combination LocalFX LocalFY LocalFZ RF LocalMX LocalMY LocalMZ RM

CC1 INLET lbf ft-lb

G09

Gravity{1} -172 0 -2 172 -1 -2 -9 9

Pressure 1{1} 0 0 0 0 0 1 0 1

GRTP1{1} -255 3 -34 257 86 -130 -52 165

SUSTAIN -172 0 -2 172 -2 -1 -9 9

CC1 OUTLET

AP00

Gravity{1} 1 -128 0 128 7 -2 -76 77

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} 6 -135 -9 135 44 -5 -59 74

SUSTAIN 1 -128 0 128 7 -2 -77 77

CC2 INLET

AP16

Gravity{1} -133 0 -1 133 0 -10 2 11

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} -127 9 -6 127 4 -37 -53 64

SUSTAIN -133 0 -1 133 -1 -10 2 10

CC2 OUTLET

AQ00

Gravity{1} 2 -84 0 84 -2 1 -35 35

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} 19 -151 18 153 -76 3 -7 76

SUSTAIN 2 -84 0 84 -2 1 -35 36

CC3 INLET

AQ09

Gravity{1} -92 2 0 92 1 7 -11 13

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} -26 22 -14 37 -2 -129 -156 202

SUSTAIN -92 2 0 92 1 7 -10 13

CC3 OUTLET

AR00

Gravity{1} 2 -80 0 80 1 -1 -26 26

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} 15 -135 -16 136 61 -6 -9 62

SUSTAIN 2 -80 0 80 1 -1 -27 27







CC4 INLET

AR08

Gravity{1} -89 2 1 89 -1 0 -11 11

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} -35 6 21 41 4 156 -24 158

SUSTAIN -89 2 1 89 -1 0 -11 11

CC4 OUTLET

AS00

Gravity{1} 1 -51 0 51 1 0 -18 18

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} 6 -71 -4 71 17 -1 -7 18

SUSTAIN 1 -51 0 51 1 0 -18 18

CC5 INLET

AS09

Gravity{1} -55 0 0 55 0 2 -3 4

Pressure 1{1} 0 0 0 0 0 0 0 0

GRTP1{1} -35 0 7 36 0 47 4 47

SUSTAIN -55 0 0 55 0 2 -3 4

CC5 OUTLET

AT00

Gravity{1} 1 -51 0 51 -1 0 -18 18

Pressure 1{1} 0 -1 0 1 1 0 -1 1

GRTP1{1} 2 51 3 51 -66 4 70 96

SUSTAIN 1 -52 0 52 0 0 -19 19

CC6 INLET

AU06

Gravity{1} -50 0 0 50 0 0 1 1

Pressure 1{1} 0 0 0 0 0 0 -1 1

GRTP1{1} -42 -23 0 48 0 0 145 145

SUSTAIN -50 0 0 50 0 0 0 0

CC6 OUTLET

AV00

Gravity{1} 1 -57 0 57 3 0 -19 19

Pressure 1{1} 0 -1 0 1 0 0 -1 1

GRTP1{1} -2 122 -3 122 -44 3 74 86

SUSTAIN 1 -58 0 58 3 0 -20 20

Gravity – the load from the self weight of the system

Pressure – the load from ΔP of the system

GRTP – the combined load of self weight + Thermal + ΔP of the system

SUSTAIN – the combined load of self weight + ΔP of the system







Table 14: Casing Nozzles Allowable Loads

Nozzle Allowable Resultant Force - lbf

Allowable Resultant Moment - ft-lb

CC1 Inlet / Outlet 259 254






By comparing the results in Table 13 to the allowable loads in Table 14, it can be seen that all force and

moment reactions on the cold compressor nozzles are lower than the given allowable loads.

Bayonets are modeled by using 0.049” wall thickness tube. Control valves are modeled after the

specification from the vendor, WEKA [7]. No high stressed areas were observed on either bayonets or

control valve body tubes. The deformations at the control valves are listed in the table below. They are

much less than the maximum displacements provided by the vendor.

Table 16: Maximum Displacement on Control Valves – Operation without Seismic Effect

Valve Node on AutoPIPE

Rmax - in lateral mm Case

Allowable per WEKA mm

PV41160 AV11 0.17 Thermal 1.9

PV41170 AW11 0.12 GRTP 1.9

PV41565 BA04 0.09 GRTP 1.9

PV41500 BP09 0.57 Thermal 3

PV41212 BF07 0.43 Thermal 2.5

6.2 Normal operation with seismic load effect

The design goal is to make sure the cold compressor casings are not overstressed in any scenario, and

that the displacements on the control valves do not exceed the maximum displacements provided by the

vendor. As discussed in Section 6.0, the model shown in Figure 2 above is used for this analysis.

A stress ratio plot for the created model is provided in Figure 5 below. The maximum stress ratio for

each combination and the node where this stress occurs is provided in Table 17 below. As this figure

and table demonstrate, the system stresses are below allowable for all load cases and combinations.







Figure 5: AutoPIPE LCLSII 2K Cold Box Internal Piping Model Stress Plot – Operation with

Seismic Load Effect

Table 17: Maximum Stress Summary – Operation with Seismic Effect

Combination

Maximum Stress Ratio

(Calculated/Allowable) Node Load Case

Hoop 0.185 AT10 Pmax

Sustained 0.220 G14 Grav. + Pmax


temperature T

Occasional 0.805 G14 Sus. + E2

ASCE 7-10 – Earthquake 0.535 G14 CASE2







Table 18: Maximum Displacement – Operation with Seismic Effect


(in) Node Load Case

Hoop 1.40e-3 BE05 Max P



temperature T

Occasional 1.22 AP12 Sus. + E1

ASCE 7-10 – Earthquake 0.939 AP12 CASE1

The maximum displacement occurs downstream of the flex hoses on CC1 inlet and CC2 inlet and outlet

spool sections. The distance from the node AP12 to the nearest line is 12”, so the piping system has

enough space to move around. Therefore a maximum displacement of 1.22” is considered acceptable.

The stresses in the cold compressor casings were also checked by hand calculations using the reaction

loads on the casing inlet and outlet nozzles, which were extracted from the AutoPIPE model shown in

Figure 3. Generally, the stresses are higher per hand calculation than those on the model since the

maximum combined load were used and the direction of the loads was ignored. But in no case does the

calculated stress exceed the allowable stress.

Table 19 summarizes the maximum displacements on control valve bodies with the seismic effect. They

are less than the maximum displacements provided by the vendor.

Table 19: Control Valve Maximum Displacement Summary – Operation with Seismic Effect

Valve Node on AutoPIPE

Rmax - in lateral mm Case

Allowable per WEKA mm

PV41160 AV11 1.68 GRTP + E10 1.9

PV41170 AW11 1.67 GRTP + E10 1.9

PV41565 BA04 1.53 GRTP + E9 1.9

PV41500 BP09 2.14 GRTP + E12 3

PV41212 BF07 0.80 GRTP + E 7 2.5

6.3 Transportation Mode

Since the cold compressor cartridges will be shipped separately, the design goal for the transportation

mode is to make sure the CC casings won’t be overstressed in any combination of transportation

accelerations, and that there is enough room for the pipe spools to freely move. As shown in Figure 6







below, the maximum stress is 21 ksi, which is 95% of the allowable stress (22.2 ksi). The maximum

displacement is 1.57 in, occurring at node AP12, downstream of the flex hose on the CC2 inlet line.

Since the clearance from this line to the nearest piping system is 12”, there is enough room to

accommodate this displacement.

Figure 6: AutoPIPE LCLSII 2K Cold Box Internal Piping Model Stress Plot - Transportation

Table 20: Maximum Displacement Summary – Transportation


(in) Node Load Case

Hoop 3.52e-4 BE05 Max P



temperature T2

Occasional 1.57 AP12 Sus. + TR4







7.0 Summary / Conclusions

The piping stresses are within the allowable for all normal and occasional design conditions. The pipe

displacements are acceptable for all normal and occasional design conditions. Loads on nozzles are less

than the Air Liquide allowable loads for all of the cold compressor casings under operating conditions

and stresses do not exceed the allowable stress under any condtions. The displacements at the control

valves under operation conditions with seismic effects are lower than the recommended maximum

displacement from the vendor. Thus, the pipe system design is acceptable.

8.0 Associated Analysis Files & Documents

The structural analysis of the 2K cold box related to this analysis is:

79222-P0002 LCLSII 2K Cold Box Pressure Safety & Structural Analysis

The calculation documents and model files listed in Table 18 below are on file at JLab and can be

provided upon request. The files are located in the folder path on the JLab network indicated below:

\\JLABSGRP\\cryo\LCLS II ANALYSIS FOLDER\2K\Internal Piping Flex\

Table 18. Additional documentation relating to the analysis.

File Name File Type Description

AutoPIPE_2K_ColdBox_Operation.zip Compressed AutoPIPE Project

Analysis files for operations load cases. Including result and input databases

AutoPIPE_2K_ColdBox_Transportation.zip Compressed AutoPIPE Project

Analysis files for transportation load cases. Including result and input databases

CC Measurement PDF Document The measured casing dimensions to help create the 3D model for analysis.

Casing mass cal.xlsx Microsoft Excel 2016 spreadsheet

Calculation of the casing thickness for modeling purpose.

CC Shafts Cal.xlsx Microsoft Excel 2016 spreadsheet

Calculation of stresses and deformation of the 2K Cold Box CC Nozzles







9.0 References

[1] American Society of Mechanical Engineers, ASME B31.3, Code for Process Piping, New York,

2014.

[2] California Building Standards Commission, California Building Code, Sacramento, CA, 2013.

[3] American Society for Civil Engineers, ASCE/SEI 7-10 Minimum Design Loads Buildings and

Other Structures, 2013.

[4] Cryogenic Plant Seismic Design Criteria, LCLSII-4.8-EN-0227-R2

[5] American Society of Mechanical Engineers, ASME B31Ea-2010 Addenda to ASME b31e-2008,

Standard for the Seismic Design and Retrofit of Above-Ground Piping Systems

[6] “Shipping load for 2K coldbox”, email from Hongyu Bai, SLAC. 12/6/2016

[7] WEKA Specification no. 20100223 – Allowed Piping Loads – Allowed Displacement. Rev.

August 2010 - FHo
