Build a Tank Vessel

7/25/2019 Build a Tank Vessel

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Build a Tank Vessel

In this section, you will learn the typical TANK workflow by analyzing a simple tank. The tank has six shell courses ten feet wide arranged likethis

Diameter:!" feetRoof:#$% slope from horizontal, ".!&'$ inch thickMaterial:A($#) *rade )"Corrosion:NilWind Speed:#+$ m.p.h.

Course Thickness Height

# ".&'$ inches #" feet

+ ".+$ inches #" feet

& to ) ".+$" inches #" feet

In This Section

Input Data

Check the Input for Errors

Analyze the Tank

Generate Output ReportsView the Graphics Output

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Input Data

In this section you will be defining the inputs for the tank.

Topics

Starting TA!

Define the Tank Data

Define the Shell Courses

Define the Roof Specifications

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Starting TANK

irst you must start TANK and sa-e a proect file.

#. /lick Start > All Programs> Intergraph CAS > TANK > TANK. 0ou may also ha-e a TANK icon on your desktop that you can useto start TANK.

The main TANK window displays.

+. /lick ome > Title Page .

&. Type My First TANKfor the Pro!e"t.

!. Type My Clientfor the Client.

$. Type your name for the Anal#st.

). 1elect ome > Sa$e.

'. Type My First Tankin the %ile namebox, and then click Sa$e.

2ake sure to note the folder in which TANK sa-es your file, or browse and change the folder where TANK sa-es the file.

Pgina 1 de 18Build a Tank Vessel

08/02/2016file:///C:/Users/Miguel/AppDaa/!"#al/Te$p/%&&AC82'&$


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Define the Tank Data

Now that you have a project file, you need to define the basic tank data.

1. Select Home > Input > General Tank Data, or click General Tank Data in the Inputpanel.

TANK opens the dialog box to the Tank Datatab.

2. Enter the tank data as shown.

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Define the Shell CoursesNext, you are ready to define the shell courses.

1. Select the Shell Coursestab.

2. Specify each shell course as 10 foot in the Height boxes.y default, the software calculates and enters the shell course Height value bydividin! the Tank Shell Heightby the Number of Shell Courses. "owever, you can edit these values as needed.

#. $ype 0.#%&0 for the first course thickness.

'. $ype 0.#12& for the second course thickness.

&. $ype 0.2&00 for course thicknesses four throu!h six.

$(N) populates the Material, Design Stress, and Hydro Test Stressboxes based on the input data you enter on the TankDatatab.




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6. Click Save .

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Define the Roof Specifications

With the general tank data and shell courses defined, you are ready to define the roof specifications.

1. Select Roof Specification Parameters on the Home > Inputpanel.

TANK opens the dialog to the General Roof Specstab.

2. For Roof Type, select Cone.

3. Type 15 for the angle et!een the roof and hori"ontal.#. Type 5.$ for Net Area at Roof/Shell Junction.

5. Type $.#3%5 for the roof plate thickness.

6. Click Save .

%. Select the Supporte Cone Roof Datata.

&. Select AISC!"#$IN for the Structural Data%ase.

'. Select Cfor a preferred rafter type of Channel.

1$. Select &for a preferred girder type of Wide Flange.

11. Select &for a preferred colu(n type of Wide Flange.


08/02/2016file:///C:/Users/Miguel/Appa!a/"#$al/Te%p/&''AC82('!%


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12. Click next to the Roof Plate Materialbox.

13. Double-click A-516,60from the material list in the Material Selection dialog box.

14. Click next to the Structural Member Materialbox.

15. Double-click A-36from the material list in the Material Selection dialog box.

TA! "o"ulates se#eral of the other fields based on $our material selections.

1%. Click Save .

o& that $ou'#e in"ut the TA! data( $ou can check the in"ut for errors.

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Check the Inut for !rror"

The in"ut data must be #alidated through the !rror Checkerbefore the anal$sis "hase is allo&ed to begin. The !rror Checker"re#entsillegal or illogical data from being "assed to the anal$sis "rogram. The soft&are al&a$s considers &arning messages as acce"table andallo&s $ou to continue &ith $our anal$sis of the tank #essel. )f $ou disagree &ith the &arning message or it raises concern( $ou shouldconsider it as an error and modif$ the in"ut accordingl$ "rior to anal$*ing the TA! +ob.

The !rror Checker"erforms the follo&ing tasks,

Checking for negati#e #alues &here onl$ "ositi#e #alues are allo&ed

nsuring that the corrosion allo&ance does not dri#e the thickness to *ero

Checking for A) code restrictions

To perform an error check of the TANK input data

1. /elect !rror Check#Anal$%e from the &ome ' Anal$%e "anel.

TANK opens the Output Processor.

2. 0e#ie& the error checking and anal$sis o"tions. or more information( see se the ut"ut rocessor.

a. )f the !rror Checkerdoes not find errors( the soft&are "erforms the anal$sis. The soft&are color-codes an$ s"ecial notes or&arnings found during anal$sis in the generated re"orts to make them eas$ to find. 0e#ie& these color-coded items to #erif$ the

+ob.

b. )f the !rror Checker finds errors in the TA! in"ut( the soft&are does not anal$*e the +ob and TA! o"ens the rror Check/ummar$ 0e"ort.

3. 0esol#e an$ errors that are "re#enting the soft&are from anal$*ing $our TA! in"ut. or more information( see Com"leting the rrorCheck hase

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Comlete the !rror Check Pha"e

hen the !rror Checker encounters an error( the soft&are "re#ents the anal$sis "hase from starting. ou must correct the in"ut to eliminatethe error and re-run the !rror Checker to confirm the "roblem &as resol#ed.

After all of the in"ut data has been e#aluated and has "assed the error check criteria( the !rror Checkero"ens the (utut Proce""oranddis"la$s the rror Check /ummar$ 0e"ort. The follo&ing sho&s the (utut Proce""or&hen a &arning has occurred.




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1. 0e#ie& the Report List for all &arnings and errors. arnings and notes are color-coded in the Report List to make them eas$ to find.

2. rint( sa#e( or ex"ort the error re"ort. or more information( see se the ut"ut rocessor

3. 0esol#e all errors in the TA! in"ut. hen $ou ha#e finished $our re#ie& of the rror Check /ummar$ 0e"ort( exit out of the OutputProcessor.

4. 0e-run the error check to #erif$ that all errors ha#e been resol#ed and TA! can continue to the anal$sis "hase.

)f the summar$ re"ort sho&s that errors &ere found( $ou must correct the errors before TA! can begin the anal$sis.

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Analyze the Tank

The design or anal$sis of the tank data occurs in the solution module. This module cannot be accessed unless the in"ut data has beensuccessfull$ error checked using Home > Analyze > Error Check/Analyze. The TANK olution !o"uledialog box dis"la$s the solution"rogress.




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This dialog box displays the current job name, the major solution steps to the analysis, and which solution steps are required by the currentinput data. As each solution step is entered, an asterisk displays next to the i tem to show the current progress. There is no user interaction orinput during the solution phase. The analysis/solution phase consists of implementing the rules and equations found in the AP!"#$ and AP!"#% codes. A brief o&er&iew of this phase can be found in the 'olution (&er&iewsection.

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TANK Program Files

TA)* creates files to sa&e the analysis information.

Binary Output Data (TKO) File

After successfully completing an analysis, the analysis module creates the T*( file, which contains the solution data in binary format. TheT*( file is used by subsequent modules to formulate and generate the &arious reports and graphics.

Message (TXT) File

(ccasionally, you might want to know how an iteration proceeded or the results of an intermediate computation. The message file +TT-contains this information. As important milestones in the analysis are reached, TA)* labels the newly computed data and writes it to themessage file.

se this message file in the e&ent that the software encounters an error and TA)* aborts and displays a diagnostic message. ecause thesoftware aborted before an output +T*(- file exists, you cannot access the (utput Processor. n this instance, re&iew the message file for

intermediate and partial solution data, which may re&eal some reasons for the error. The message file is a standard A'0 text file, which canbe &iewed with a &ariety of editors or printed to the system printer. 1ou can also access the message file from Tools > File Review > Reviewmessage file.

1ou must select the Generate Message File? check box in Tools > Configuration > Computation Controlto generate the messagefile. 2or more information, see 0omputational 0ontrol Tab.

File Suffix Description Created by

T* ser3s input data nput 4odule

T*5 6erified input data 5rror 0hecker

7(8 5rror/warning messages 5rror 0hecker

T*( inary output data 'olution 4odule

TT ntermediate solution data 'olution 4odule

T9$ inary report data (utput Preprocessor

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Solution Overview

The major steps performed in the solution phase are discussed in this section. :efer to codes AP!"#$ and AP!"#% for additional details.

;. in! effe"t ! The specified wind speed is used to determine the applied wind pressure, the &elocity factory, and the o&erturningmoment. These &alues are used later in the computations for the wind girders andAppendix Fconsiderations.




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2. Allowable stresses for both the design and test cases - The material control routine includes considerations for reductions due totemperature fromAppendix Mand if necessaryAppendix SandAPI-653 Section 2requirements. The allowables for each shell courseare determined individually based on the specified course materials.

3. Required shell course thicknesses - This thickness is based on the specified design method, either one-foot, variable point, orAppendix A. The appropriate sections of the code are implemented using the material properties to determine the thicknesses for eachcourse for the design and test cases. Each thickness computation is then followed by a check ofAPI-650 Section 5.6.1.1to insure thatthe minimum thickness requirements of the code are met. f the input indicates that the software is to operate in analyi mode to rate ane!isting tank, the design and test thicknesses "ust computed are replaced with the users input thicknesses for subsequent computations.

# note to this effect appears in the output below the thickness table when required.

$. Allowed fluid heights - This procedure involves the use of the same code sections used in the thickness determination. n the case ofthe variable point method, this is an iterative process.

%. Shell weight and center of gravity -The weight&center of gravity routine compares the computed shell weight with that specified by theuser, and selects the !axi!"! of the two for subsequent computations inAppendix #.

'. Overturning stability - This value is checked according to Section 5.11.

(. Wind girder requirements - The number of girders, their section moduli, and their locations are determined according toAPI-650Section 5.$. )ind girder detail and si*e is then selected fromAPI-650 %able 5-22.

This concludes the general computations performed for each tank input data set. #ll subsequent computations are optional depending onuser specification.

Roof Data - f the roof data has been specified, the software evaluates, analy*es, or designs the roof. +oof evaluation involves weightsummations, required thicknesses and net areas according toAPI-650 Section 5.10.5 or5.10.6. The analysis or design of a supportedcone roof applies the procedures outlined in rownell oung. /ollowing the roof design, the Section 5.10.3checks are implemented.

AP-!"# A$$endi% & requirements - #fter the actual roof computations are completed, theAPI-650 Appendix Frequirements areevaluated.

#lso note that the roof weights computed from a design are used in subsequent 0seismic1 computations.

Seismic requirements of AP-!"# A$$endi% ' - The guidelines of this appendi! are applied to the tank in three conditions design, test,and empty.

(o))le fle%ibility calculations as outlined in AP-!"# A$$endi% P - This appendi! also offers guidelines on the ma!imum allowedno**le loads. The software determines the fle!ibilities and limiting loads on up to fifteen no**les for all three sets of shell coursethicknesses 0design, test, and user input1.

*rillage com$utations - These computations conform to the rules ofAPI-650 Appendix I& Section '.

Settlement limits as set forth in AP-!"+ A$$endi% , - These computations use an iterative procedure to determine the optimumcosine curve which most closely represents the users measured values of shell settlement. #fter the cosine curve is known, the out-of-plane settlement and out-of-plane deflection can be determined.

Servicemaintenance com$utations - These computations are based onAPI-653 Section 2.

AP-.### /enting calculations.

#fter all si*ing, roof, and seismic computations have been completed, the evaluation for the permitted cycle life according toAppendix M&Section M.(begins.

/ollowing the cycle life calculations, the bolting requirements are checked. This procedure evaluates each of the load cases defined in4ection %.52 and determines, if necessary, the required number of bolts and the bolt si*e. # second pass is then made to determine thegoverning condition and to report a single bolt si*e and quantity, with the corresponding stress for each load case.

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*enerate Out$ut Re$orts

6ost of the time spent reviewing the results of a T#78 analysis is in reviewing tabular reports. These reports are organi*ed by topic. )henthe analysis phase completes, the Out$ut Processor displays the various reports.

Each entry in the Re$ort 0istdisplays a different report. 6ultiple reports can be selected or removed from the selection by using the 9T+:key in combination with a left mouse click. The Out$ut Processordisplays the first report selected in the viewing pane to the right. /or moreinformation, see ;se the


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The following commands appear on the Home tab for the Output Processor.

File Panel

Open -Opens an existing report, which means you are switching the output to a different job. This option opensthe standard File Open dialog box that shows only those jobs who have been analyzed and have output files.

Save -Saves the selected report.

Print -Prints the selected report. lic! the down arrow to see the following addition print options"

Print to File # Prints the selected report to a text file and saves it where you indicate.Print to File Then Run Word -Prints the selected report to a text file and then opens it in $icrosoft %ord.

%hen you send reports to $icrosoft %ord, if a file named header.docexists in the T&'( system folder,the software reads its contents uses them in the page header when T&'( exports the report to %ord. Therefore,you can set up a header file with the company logo and address details, should you want those to appear onyour reports.

Word Document -reates the report using $icrosoft %ord.

Previous -)isplays the previous report.

Next -)isplays the next report.

Edit Panel

Delete -)eletes the selected report from the Report ist and the generated output.

Select -Selects reports or the text within reports, depending on what you select in drop#down options.

Select !ll Report Text -Selects all the text in the currently active report.

Select !ll Reports -Selects all the reports listed in the Report ist in the Output Processor.

Path - Sets an alternate path for word processing.

Help Panel

!"out -Specifies details about the program, version information, and the copyright.

#ie$ Panel

Hi%hli%ht -*ets you enter search terms or values for the selected report. Press F& to move to the nextinstance of the search term. +ou must clic! on each report in the Report ist search and highlight text.

To%%le Status 'ar -Turns the display of the status bar at the bottom of the Output Processoron or off.

To%%le Options Pane - Turns the display of the Options tab on the left pane of the Output Processor on oroff.

To%%le Reports ist - Turns the display of the Report ist tab on the left pane of the Output Processoronor off.

Reset Pane a(out - esets the layout of the Output Processorto the default display settings. +ou must exitout of the processor and then open it again, to see the reset layout.

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Report ist Ta"

The Report isttab in the Output Processor displays all available reports and an error log for the current job. The reports that display in theeport *ist are dependent upon the T&'( input you specify prior to analysis.

The -xamplessections include several example jobs with complete output report listings. -ach page of output begins with a header. Theheader contains the users name, page number, job name, date, time, and software version number.

Topics

Job Title Page

User Input Data

Error Checker LOG File

Solution Moule T!T File

"in# Material# Thickness $ "eights

%oo& E'aluation(Design $ )ppeni* F

Seis+ic )nal,sis %esults




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Nozzle Flexibility & Load Results

API-653 Settlement Evaluation

API-!!! 5t" #entin$ Re%uiements

API-65! 'oltin$ Re(ot

API-65! )y*le Li+e ,ut(ut

API-65! A(( # Extenal Pessue

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Job Title Page

The Job Title Pagereflects the user-specified description of the tank and i ts associated data. Include any special notes here. This

information is defined using Title Page .

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User Input Data

The User Input Datareport contains the input data defined in the input module. This report can vary in length depending on the number ofshell courses and nozzles defined, as well as whether or not roof, seismic, and settlement details were defined.

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Error Checker LOG File

The Error Checker .LOG Filereport is generated by the error checker. This report contains a list of every warning message and errorgenerated during the error check of the input data.

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Solution Moule T!T File

The Solution o!ule .T"T Filereport contains the contents of the message file generated by the solution module. The size of this reportvaries depending on which solution routines were needed and how many iterations were necessary to determine the results.

The values reported in the message file are shown in English units T!"# internal system units$. !ll other values in all of the otheroutput reports are shown in the units system that you specified.

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"in# Material# Thickness $ "eights

The #in!$ aterial$ Thickness % #eightsreport contains formal output data computed by T!"#. It begins with a summary of the windparameters used during the analysis, consisting of the velocity factor, the area e%posed to the wind, and the wind moment.

The ne%t section of the report reflects the material properties used, including the wind girder height reduction factor. &or each shell course,the material name, design allowable stress, test allowable stress, and !ppendi% ' reduction factor are listed.

The ne%t section of the report details the final shell course thicknesses for the design and test cases. The user-defined shell course thicknessis also reported here, as well as the minimum allowed metal temperature as obtained from !PI-()* &igure +-. The thickness used inimplementing this &igure is the ma%imum of the design and test cases.

&or !PI-() analysis, the ne%t section of the output contains a table showing the retiring thickness and remaining corrosion allowance foreach course.

The ne%t section of the report details the allowed fluid heights for the design and test cases, as well as the reuired fluid height is also shownin the table.

The ne%t section includes the annular base plate thickness and width, the weight of the shell, and the center of gravity of the shell.

The ne%t section details the results of the /wind overturning stability check/, based on !PI-()* 0ection )..

The ne%t section of this report details the results of the wind girder computations. This includes the reuired section modulus for both the topand intermediate wind girders, as well as the ma%imum height of the unstiffened shell. &ollowing this information is a table showing the windgirder reuirements as a result of the tranfor!ed ection method. &or each wind girder reuired, the )eo!etry detailand angle size are alsoreported. If *etail eis reuired, the b dimension is also included in the report.

The final section of this report presents a weight summary of the various tank components.

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%oo& E'aluation(Design $ )ppeni* F

The &oo' E(aluation)Designreport details the results of the design or analysis of supported cone roofs, and the results of the computationsmade according to the rules of !PI-()* !ppendi% &. The roof report begins with the reuired thickness and actual weight of the roof plates,and the design roof load.

If a supported cone roof was designed or analyzed, the resulting structural member sizes and loads are reported ne%t. This information




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begins with the number of girder rings, the radius to each girder ring, and the number and length of the girders in each ring. This report isshown below.

!lso shown above are the rafter details. This information includes the number of rafters in each rafter ring, the spacing on the outer girders,the number of rafters resting on the outer girders, the spacing on the inner girders, the number of rafters resting on the inner girders, and therafter length. "ote that at the center of the tank, and at the shell, the number of rafters per girder is reported as zero.

The ne%t section of the supported cone roof$ report details the rafter and girder sizing parameters. This information includes the unit load onthe member, the selected cross section, the reuired section modulus, and the actual section modulus. This information is provided for eachrafter and girder ring, and is shown below.

The ne%t section of the supported cone roof$ report details the column sizing parameters. This information begins with the column load,height, allowable compressive stress, and reuired radius of gyration. This is followed by the selected cross section, the actual compressivestress, and the actual radii of gyration. This information is shown below.




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Following the column sizing details is the summary of the checks made according to Section 5.10.3. These checks determine theacceptability of the structural elements based on allowable stresses and unbraced lengths.

Following these checks is a weight summary of the supported cone roof components.

Following the roof designanalysis report are the results of the !ppendi" F computations. This information begins with the uplift force due tointernal pressure and the resisting force due to tank weight.

This information is followed by the ma"imum design pressure limited by uplift# the ma"imum pressure at the roofshell $unction# and thecompression ring failure pressure. !ll pressures are reported in the user%s units for pressure and in &inches of water'# an !() unit.

The last section of the roof report shows the re*uired area of the roofshell $unction as per Section F.5# and either 5.10.5 or 5.10.+.

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Seismic Analysis Results

The Seismic Analysis Resultsreport details the results of the computations made according to the rules of !(),+50 !ppendi" -. Thesecomputations were made for three cases design fluid# test fluid# and empty.

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Nozzle Flexibility & Load Results

The Nozzle Flexibility & Load Resultsreport details the results of the computations made according to the rules of !(),+50 !ppendi" (.These computations were made for three cases design shell thickness# test shell thickness# and user input thickness. For each case# thefle"ibilities# deflection# rotation# and limiting loads on the nozzle are reported. This information is repeated for each nozzle defined in the input.

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API-653 Settlement Ealuation




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The Settlement Checksreport details the results of the computations made according to the rules of API-653 Appendix B. This reportprovides the maximum allowed out-of-plane deflection and a tale showing the out-of-plane settlement at each of the measurement points.

This tale also includes the settlement measurements! the optimum cosine curve through these measured points! the out-of-planesettlement! and the out-of-plane deflection.

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API-!""" 5t# $entin% Reui'ements

The API-2000 5th Venting Requirementsreport details the results of the computations made according to "ection #.3 of API-$%%%. Thisreport provides the venting re&uirements for inreathing! outreathing and fire exposure. An example of the venting report is shown elow.

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API-65" (oltin% Re)o't

The olting report details the results of the computations made for "ection 5.'$. There are two sections to this report. The first sectioncontains the uplift and load per olt for the various load cases. The second section shows the re&uired numer of olts! the re&uired oltdiameter! and the resulting olt stress for each of the various load cases.

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API-65" *ycle Li+e ,ut)ut

The c(cle life report details the results of the computations made for Appendix ). The report lists the exclusions and chec*s made! as well asthe numer of allowed c(cles.

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API-65" A)) $ Exte'nal P'essu'e




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The API-650 App V External Pressurereport details the result of the computations made for Appendix V.

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Options Tab

The Optionstab in the Output Processor defines report options, such as page numbers and font settings.

Paging Options

Starting Page - Overrides the starting page number for this group of reports. Use this function when ou have to combine multiple reports

into a single report and need the page numbers to be se!uential throughout.

Ending Page - Overrides the ending page number for this group of reports. "f this value is #ero and the Starting Pagevalue is greater than#ero, then the software does not displa the ending page number.

Page Numbers - $elect to print page numbers in the report header.

Page Headings - $elect to print the page heading on each page.

Fonts

Page Heading - %efines the text font for the heading text.

a!or "e#el - %efines the font for the text in the main report sections.

inor "e#el - %efines the font for the text in the minor report divisions.

Normal Text - %efine the text font for the report data.

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Vie$ t%e &rap%i's Output

&hen the software completes the analsis of a tan', the output options are available. These options include both text based reports andgraphics, and graphic viewing through the software interface. (ou can view the graphics model of an anal#ed tan' in )% or *% views. Tochange between the two possible views, clic' the tabs that appear below the graphic model.

The software defaults the view displaed when ou open a +ob to the view ou most recentl used.

The following sections explain the *% and )% views and the options available from each view.

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() Vie$




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Select 3D Viewat the bottom of the graphics model of an anlalyzed tank to view the actual tank geometry in three dimensions.

This section describes the 3D view and context menu options available on this view

The software displays the 3D model, upon input. owever, certain elements do not appear until you analyze the tank.

!ou can view and save output in "D view by clicking 2D Viewat the bottom of the graphics model.

!ou can #uickly view basic details about tank elements by pressing $T%& and hovering over the element.

'n addition to showing the outer surfaces, you can also view the 3D model in different shading modes, such as flat shaded and (ourard. Thesoftware also supports operations, such as panning, zooming, and model rotation.

%ight)click anywhere on the 3D view to display the context menu. The toolbar for performing some basic operations appears on the right sideview. *or more information, see 3D (raphics Toolbar.

Options ) +ctivates the Plot Propertiesdialog with which you can customize the colors ofelements in the display.

Visibility ) Select and clear the different options to display and hide that element in the 3Dgraphics view. *or example, you might want to hide the roof to get a better view inside ofthe tank shell. The elements are not deleted from the model, ust hidden.

Render Mode ) Select how you want the surfaces and edges to display on the model.$hoose between Flat Shaded-shows obects with shaded surfaces and outlined edges orGouraud Shaded-shows the obects with shaded surfaces and smooth edges.

View Orthographic ) Displays all obects the same relative size regardless of the distancefrom the observer.

View Perspective ) Specifies that the view should display the tank using perspectiverendering. /erspective rendering is characterized by0

The size of obects appears smaller as their distance from the observer increases.

The size of obect dimensions along the line of sight is smaller relative to thedimensions across the line of sight.

Save 3D Model as !M" ) Saves an T1& file of the 3D model in the folder where theoriginal T+2 ob was located. The software prompts you with the file location. $lick O#.

Save 3D Model as ) +llows you to save the 3D model in the following formats0 T1&, T'*,S*, 41/, and 5/6( or 5/(. The software defaults to the folder where the original T+2




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3D Graphics Toolbar

job was located. However, you can browse and save the file to another location.

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2D View

Click Home > 2D Plot and select 2D Viewat the bottom of the raphics model to view the !D "iew of the raphic output. This sectiondescribes the !D view options and the raphics produced for subse#uent printin or capturin.

The software disables the 2D Plot panel in the followin situations$ %ou must run the analysis on the job before you can view the raphics output.

%ou must select 2D Viewfor the raphics output below the model.

&lot 'enu

The available !D raphic plots are$

( eneral tank sketch showin plate layouts and overall dimensions

( pair of no))le interaction diarams, used to check the conformance of the no))le to (&*+- (ppendi/ &

( sketch of the results of the supported cone roof desin

( plot of the shell settlement and optimum cosine curve results

0ach of these raphic plots is discussed in the sections that follow.

%ou can view and save output in 3D view by clickin 3D Viewat the bottom of the raphics model.

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Plot an. Eleations

The Plot > Plot Tank Elevations option in the local raphics environment enerates an overall tank sketch with a number of optionaldetails. The tank sketch is useful to et an overall representation of the si)e of the tank.

Click the down arrow on the Plot Tank Elevations icon to access several additional functions.

1se Plot Tank Elevations > Show Course Labelsto show or hide the course heiht and material thickness values in the plot. Theselabels appear in the lower riht and start with C2, C!, C!, and so forth.

1se Plot Tank Elevations > Display tank imensionsto show or hide the course heiht, material thickness, and eneral tankdimensions that appear at the top of the plot.

1se Plot Tank Elevations > Enter tank imensions to update specifications on the plate lenth and offset. The tank elevation plotupdates as soon as you click !" in the Tank Dimensionsdialo bo/.

The followin shows an e/ample of a tank elevation plot.

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Plot S#ell Settlements

The Plot Plot Settlement option in the local raphics environment produces 4% type plots detailin the shell settlement evaluationaccordin to (&*+-3 (ppendi/ 5.

Click the down arrow on the Plot Settlementicon to access additional display options for the settlement plot.




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Use Plot Settlement > Plot measured elevationsto show or hide the measured elevations on the plot.

Use Plot Settlement > Plot optimum cosine curveto show or hide the optimum cosine curve on the plot.

Use Plot Settlement > Plot out-of-plan deflectionto show or hide the out-of-plane deflection on the plot.

Use Plot Settlement > Display Plot Legendto show or hide the legend on the plot.

Use Plot Settlement > Spline all data for displayto spline the plot data. Splining the data smooths the plot points into curves andmakes for better presentations.

The settlement plot uses two Y-axes. The far left Y-axis is for the out-of-plane deflection curve. The Y-axis closest to the curves is for themeasured and optimum cosine curves. These axes and their associated curves are shown in different colors for better visualization.

The settlement plot positions the curves on an X-axis showing the relative angular position around the tank circumference from the point ofmaximum settlement. The settlement plot also includes a secondar X-axis which shows the location of the actual measurement points.

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Plot Nozzle Specifications

The Plot > Plot Nozzle option in the local graphics environment constructs the nozzle plot diagrams of !"#-$%& !ppendix "' necessarto determine if a nozzle is overloaded.

(lick the down arrow on the Plot Nozzle icon to access several additional functions.

Use Plot Nozzle > Select nozzle for displayto select which nozzle to plot. The number of nozzles ou can select in this option dependsupon our T!)* input. You can add up to +% nozzles to the T!)* input.

Use Plot Nozzle > Use "design" thicknessto displa the design thickness on the nozzle plot.

Use Plot Nozzle > Use "test" thicknessto displa the test thickness on the nozzle plot.

Use Plot Nozzle > Use "user input" thicknessto displa the user input thickness on the nozzle plot.

Use Plot Nozzle > Longitudinalto displa the nozzle plot from the longitudinal perspective.

Use Plot Nozzle > ircumferentialto displa the nozzle plot from the circumferential perspective.

The resulting nozzle plot shows the interaction point as an asterisk. The location of this point is determined on the plot using the input valuesof applied piping loads. #f piping loads are not specified' the interaction point plots at the origin.

,or the nozzle to meet the criteria of !"#-$%& !ppendix "' the interaction point must plot inside the diagram.

The following examples show nozzle plot diagrams from the longitudinal and the circumferential perspectives.




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Longitudinal Nozzle Plot Diagram Example

Circumferential Nozzle Plot Diagram Example

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Supported Cone Roof Sketches

The Plot > Plot Cone Roof option in the local graphics environment to display the roof design when a supported cone roof has beendesigned and entered into TN! input" These roof s#etches are not shown to scale and are provided for information purposes only"

Clic# the down arrow on the Plot Cone Roof icon to access several additional functions"

$se Plot Cone Roof > Show cross section sizesto show or hide the lengths of the cross section structures on the roof"

$se Plot Cone Roof > Show element lengthsto show or hide the lengths of the various roof elements"

$se Plot Cone Roof > Show quantitiesto show or hide the number of elements on the roof"

The following shows a plot of a typical cone roof s#etch"




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Cone Roof Sketch Example

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Build a Tank Vessel

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Transcript of Build a Tank Vessel