1.0 INTRODUCTION 2
1.1
What Is RASPLOT? 2
1.2
System Requirements 2
1.3
Program Installation 2
1.4
Uninstalling RASPLOT 4
1.5
HEC-RAS Program Setup 4
1.6
RASPLOT User Table 5
1.6.1Create a HEC-RAS User Tables menu 5
1.6.2Create a RASPLOT
User Table 7
1.7
HEC-RAS Report File for RASPLOT 10
1.8
Acknowledgements 12
2.0 The Profile Table Database 13
2.1
What Is Profile Table Database? 13
2.2
How to Create a Working Table for HEC-RAS 13
2.3
How to Create a Working Table for HEC-2 16
2.4
How to Create Working Table for non-HEC-RAS or non-HEC-2 hydraulic models 16
2.5
Working Table 17
3.0 Navigating in RASPLOT 23
3.1
RASPLOT Program Window 23
3.1.1 File Menu 23
3.1.2 View Menu 23
3.1.3 Edit Menu 24
3.1.4 Help Menu
24
3.1.5 Status Bar
25
3.1.6 RASPLOT Toolbar
25
3.2
River/Reach
Connection Dialog Box 26
3.3
Node Names from HEC-RAS 31
3.4
Backwater Setup Dialog Box 38
3.4
Select Profile Dialog Box 38
3.5
Header
Information 39
3.6
Panel Setup Information Dialog Box 40
3.7
LandmarkTable 41
3.8
HEC-RAS Project Information 42
3.9
Structure and
Stream Bed Symbols 42
4.0 DXF Editor
45
4.1
What is the DXF editor 45
4.2
Open an Existing DXF file 45
4.3
Save changes in DXF format 45
4.4
Print the DXF file 45
After installing the RASPLOT
program the user needs to select the version of HEC-RAS program to run with the
RASPLOT. It is explained under HEC-RAS
Program Setup section. HEC-RAS program
must have RASPLOT user table under the User Tables menu in Profile Output Table
window of HEC-RAS. How to accomplish
this task is explained under RASPLOT User Table section. A HEC-RAS report file for RASPLOT must be
created in order for RASPLOT to extract data in creating Profile Table
Database. It is explained under HEC-RAS
Report File for RASPLOT section. The
components of the Profile Table Database are explained in Chapter 2, The
Profile Table Database.
RASPLOT is a computer program that
creates a Flood Insurance Study (FIS) profile by automatically extracting data
from HEC-RAS or HEC-2 input and output files.
In addition, the RASPLOT program can be used to create FIS profiles for
any other hydraulic model by entering the necessary data manually. The final product will be in DXF file format
and a CADD program is included as part of this program to edit and print
profiles as necessary.
In order to run, RASPLOT requires:
·
Windows 98/NT/2000/XP operating systems
·
Microsoft compatible mouse
·
Printer
·
SVGA graphics card and monitor.
Please note: The user must
initially uninstall any previous versions or Beta versions of RASPLOT. For guidance on uninstalling previous
versions of RASPLOT, see section 1.4.
To install RASPLOT from a
CD-ROM:
The setup program in the setup.exe
file runs from a CD-ROM. On most
systems, the CD‑ROM is drive D.
The following steps refer to drive D.
If necessary, substitute the appropriate drive letter for D.
1.
Insert the CD in the appropriate drive.
2.
Select Windows 98/NT/2000/XP Start button, choose Run,
designate the CD-ROM, and enter the path name and setup (for example, D:\setup).
To stop the setup program, choose
Cancel. If you cancel the setup program
after copying has begun, all files copied by the setup program will be removed.
3.
RASPLOT displays "C:\Program Files\Rasplot" as the path. Accept the default destination location by
clicking the upper right button, or use the Change Directory button to choose a
different location.
To install RASPLOT from the
Internet:
1.
Download the setup.zip file from the FEMA web site at http://www.fema.gov/fhm/frm_soft.shtm
to a local directory (e.g., C:\temp) on your computer's hard drive.
2.
Extract setup.exe file from the setup.zip file in your local
directory.
3.
Double click on Setup.exe and follow the instructions on the screen to
install the program.
When the installation is
complete, the following window will be displayed.
·
Click the Finish
button.
The RASPLOT program is installed
under C:\Program Files\Rasplot, and the following files should be in the
RASPLOT folder. The files can be viewed
using Windows Explorer.
To place the RASPLOT icon on the
Desktop window:
1.
Click the Start
button from the Windows Task bar => Programs
=> RASPLOT.
2.
Right click the mouse and select Send to folder => Desktop
and left click the mouse.
The following steps should be
followed to uninstall any previous version of RASPLOT, or Beta versions of
RASPLOT:
1.
From the Windows Taskbar, click the Start button => Settings
=> Control Panel.
2.
From the Control Panel, double click Add/Remove Programs.
3.
From the list of programs, select RASPLOT.
4.
Choose Add/Remove.
5.
In the confirmation dialog box, choose Yes.
All of the program files that were
part of the installation will be removed.
Files that were created in the RASPLOT folder after RASPLOT was installed
will not be removed.
This section explains how to select
the proper version of HEC-RAS to run with the RASPLOT program. The user is required to locate the HEC-RAS
program file (i.e., ras.exe) through the RASPLOT Program.
1.
Double click the RASPLOT
icon to run RASPLOT. After the opening
window, the following window will be displayed. This is the main RASPLOT Program window.
2.
Click the File
menu.
3.
From the list of displayed options, click Setup Program.
4.
The following dialog box will be displayed. When the dialog box first opens, the HEC-RAS
Program box and Default Data Directory box will be empty.
5.
Click the upper Browse
button to locate the ras.exe file of the HEC-RAS version to be used.
6.
Click the lower Browse
button to select the default directory where the HEC-RAS files will be
located. This step is optional.
7.
Click OK.
The HEC-2 program was already
installed in the C:\Program Files\Rasplot during the installation process.
This section explains how RASPLOT
creates the RASPLOT table in the HEC-RAS Program's User Tables menu. First, check to see whether there already is
a User Tables menu on the menu bar of the Profile Output Table window of
HEC-RAS. If there is, skip to the RASPLOT
User Table subsection below (subsection 1.6.2). If not, follow the procedure described below (subsection 1.6.1)
to create one.
1.
From the HEC-RAS main window, click Profile Table button (third button from the right in HEC-RAS 3.1.2
version). The following window will be
displayed.
Note that there is no User Table menu on the menu bar, and
Standard Table 1 is displayed as a default.
(The name of the Table displayed is shown on the header of the window.)
2.
Click Options menu.
3.
From the list of displayed options, click Save Table. The following
dialog box will be displayed.
Change the name to Table 1 by
deleting (using the delete key) the unnecessary letters from "Standard Table
& 1," as shown below.
4.
Click OK. The following window will be displayed.
Note that User Tables menu is displayed on the menu bar, and Table 1 is
displayed on the header of the window.
Table 1 will be displayed as an option when the User Tables menu is clicked.
5.
Close the Profile Output Table window.
6.
Close HEC-RAS main window.
Follow the procedure described
below to create a RASPLOT table in the HEC-RAS Program's User Tables menu.
1.
Delete the file with extension ".rep," if there is one, from
the directory where the user's HEC-RAS files reside.
2.
Run RASPLOT (double click the RASPLOT icon).
3.
From RASPLOT Program
window, click the Open button. The following dialog box will be
displayed. (The files displayed will be
the ones on the user's computer).
In the Open File window, as a default, HEC-RAS will be the selected mode
in the Select a model area. Locate the folder where the HEC-RAS files
reside by browsing through the folders in the right box. All the HEC-RAS project files (files with
extension ".prj") in that folder will be displayed in the left box, as shown
below.
4.
Double click the HEC-RAS project file to be studied or select
the HEC-RAS project file and click OK.
5.
From the RASPLOT
Program window, click the Extract
button. The following message box will
be displayed.
(As a default, HEC-RAS assigns the
project file name as the primary name of all the HEC-RAS files). Click Yes.
The HEC-RAS main window for the
version that was selected (see Section 1.5) will be displayed, as shown below,
with the selected HEC-RAS project from the previous step.
6.
From the HEC-RAS main window, click Profile Table button. (For
HEC-RAS 3.1.2, it is the third button from the right.) The Profile
Output Table window with the Standard Table 1 will be displayed.
7.
Click User Tables
menu and click RASPLOT. The RASPLOT table will be displayed, as
shown below.
The above procedure explains how
RASPLOT creates a RASPLOT user table in the HEC-RAS User Tables menu. Do not attempt to create a RASPLOT user
table through the HEC-RAS program by selecting the variables. If for any reason, a RASPLOT table no longer
exists in the User Tables menu,
follow the above procedure to recreate one.
Table Cross Section Order
The River Stations (RS) in the
RASPLOT table must be from upstream to downstream direction. RASPLOT extracts data not only from the
RASPLOT table, which is the output data, but also from HEC-RAS input data: plan
data, geometric data, and reach lengths.
The order of the RS of the input data in the HEC-RAS report file is
always from upstream to downstream order irrespective of the RS order in the
output data. In order for RASPLOT to
extract the data properly from both the input and output data the RS order must
be from upstream to downstream order for both input and output data.
The order of the RS is controlled by the option Table Cross Section Order under Options menu in the Profile Output
Table window. If HEC-RAS is opened
through the RASPLOT program, it will automatically select the RS order as
upstream to downstream order.
From the Profile Output Table
window in HEC-RAS:
·
Click Options
menu
·
Select Table
Cross Section Order from the displayed options.
The following dialog box will be
displayed.
·
If the cross section order selected is from Downstream to Upstream order (HEC2 Style),
change the selection to Upstream to
downstream order.
·
Click OK.
·
Close the Profile
Output Table window.
·
Rerun HEC-RAS.
If the plan shown is not the desired one, select a different plan and
rerun HEC-RAS.
This section explains how to create
a report file in HEC-RAS for the RASPLOT program. The following instructions can be used as the continuation of the
previous section, or it can be used independently if the report file is to
create from HEC-RAS directly. If that
is the case, the user must make sure that the HEC-RAS User Tables menu has a
RASPLOT table and the Table Cross Section Order is from upstream to downstream.
1.
From the HEC-RAS main window, click File menu.
2.
From the list of displayed options, click Generate Report. The
following window should be displayed. (Except nothing is displayed under Selected Summary Tables box. How to select RASPLOT will be explained
later.)
The
following should be noted about the Report
Generator window.
·
The Report File
box will show "Asterisks for Borders."
Do not change this option.
·
Under the Input
Data area, the boxes for Plan Data, Geometric Data, and Reach Lengths will
be checked. Other boxes are not checked.
·
Under the Output
area, the number of profiles shown under Profiles
to Include in Report must be the same as the number of profiles in the
Steady Flow Data window. If you are
unsure, click the Profiles... button
in the Report Generator window and click the Select All button. Then
click the OK button.
(The user must select all the
profiles although not all the profiles are to be plotted. The user will have a choice which profile(s)
to be printed by using the Select Profile(s) option in RASPLOT. See Section 3.4 Select Profile Dialog box.)
·
No boxes are checked under the Specific Tables (Detailed Output) area. (If the boxes are not checked as shown in
the above figure, reselect the boxes.)
·
Search for RASPLOT in the Available Summary Tables box by scrolling through the pull down
arrow.
·
Click RASPLOT
to select. RASPLOT will be displayed in
the Selected Summary Tables
box. RASPLOT should be the only table
in the Selected Summary Tables box. If
there are other tables in the Selected Summary Tables box, double click on the
additional tables to delete them.
3.
Click Generate Report
button.
4.
After the report is generated, click the Close button.
5.
Click the Save
button (second button from the left) from the HEC-RAS main window.
6.
Close the HEC-RAS main window.
Proceed to Section 2.2, How to
Create a Working Table for HEC-RAS to
create profiles in RASPLOT.
This program
was developed by Dewberry for Federal Emergency Management Agency.
RASPLOT extracts data from HEC-RAS
report file, HEC-2 input and output files, and user created database through
RASPLOT to create a Working table in RASPLOT displaying the extracted
variables. How to create a Working
Table for HEC-RAS, HEC-2, and non-HEC files and the extracted variables are
explained in this chapter.
The Profile Table Database is an
Access Database. It has four tables:
[Working], [Work Header], [Panel], and [Landmark]. This section explains in detail about the table [Working]. See Section3.5 Header Information for table
Work Header, see Section 3.6 Panel Setup Information Dialog Box for table
Panel, and see Section 3.7 Landmark Table for table Landmark.
Please note: The user
should not modify the [Landmark], [Panel], or [Work Header] tables outside of
RASPLOT. In addition, the data inside
the table [Working] should not be sorted.
To do so, may cause RASPLOT to malfunction.
This section explains how to create
a working table in RASPLOT for HEC-RAS.
.
1.
Run RASPLOT (double click the RASPLOT icon).
2.
From the RASPLOT
Program window, click the Open
button or click File menu and select
Open command. The following dialog box will be
displayed. (The files displayed will be
the ones on the user's computer).
3.
In the Open File
window, as a default, HEC-RAS will be selected as the selected mode in the Select a model area. Locate the folder where the HEC-RAS files
reside by browsing through the folders in the right box. All the HEC-RAS project files (files with
extension ".prj") in that folder will be displayed in the left box, as shown
below.
4.
Double click the HEC-RAS project file to be studied, or select
the HEC-RAS project file and click OK. The following window will be displayed.
.
5.
From the RASPLOT
Program window, click the Extract
button.
If the cross-section order in the
RASPLOT user-defined table is from downstream to upstream, the following
message will be displayed.
·
Click OK.
·
Close the RASPLOT window.
·
Open HEC-RAS, correct the cross-section order (see
Table Cross Section Order under Section 1.6.2, RASPLOT User Table), and
regenerate the report file (see Section 1.7, HEC-RAS Report File for RASPLOT).
·
Save the HEC-RAS project and close HEC-RAS.
·
Follow the procedure from step 1.
6.
If the HEC-RAS project file does not include the Report File
for RASPLOT (see Section 1.7), a message box stating that the Report File is
missing will be displayed. Or, if the
Report File does not include the RASPLOT user-defined table, a message box
stating that the Report File does not have the right RASPLOT user-defined table
will be displayed. In either case, the
message box will state that "You need to create the report file."
·
Click the Yes
button in the message box. The HEC-RAS
main window for the version that was selected (see Section 1.5, HEC-RAS Program
Setup) will be displayed with the selected HEC-RAS project.
·
Follow the instructions in Section 1.7 HEC-RAS Report
File for RASPLOT to create the report file.
·
After the report file is created, save the HEC-RAS
project and close the HEC-RAS main window.
7.
Click the Extract
button from the RASPLOT Program
window. RASPLOT will create a Working
Table, as shown below, if the HEC-RAS file includes a single reach.
See Section 2.5 for explanation of
the Columns River, Reach, River Station, Structure, Length Chnl, Cum Dist, Min
Ch El, Low Chord, High Chord, Label Letter, Label Text, Prof 1, Prof 2 ...
See Section 3.0 Navigating in
RASPLOT for a detailed explanation of the menus and the buttons. See Section 3.2 River/Reach Connection
Dialog Box for HEC-RAS models with multiple streams and/or reaches.
You will need to open a HEC-2 input
file on your computer hard disk or on a network by clicking File Menu and
selecting Open command or by clicking Open Button.
In the Open File Dialog box, select
HEC-2 from the 'Select a Model' box.
Then select the Drive where the desired input file is located. In the folder list, double-click folders
until you open the folder that contains the input file you want. Select the input file and click the "OK"
button or double click the input file.
If you can't find the HEC-2 input
file in the folder list, please see note below.
Note: To open a HEC-2 input file with a different extension than the
default for a particular model, click the file type you want, and then
double-click the input file name in the folder list. You can also type the
extension in the File Type box; for example, type *.HC2 to find HEC-2 input
files with the HC2 extension.
Once the Input file is selected,
RASPLOT will run the HEC-2 program.
Click on the "Extract Data" button and a profile table will be created.
Supercritical HEC-2 files
For engineered channels a
supercritical flow analysis is allowed for the flood insurance studies. The HEC-2 program recognizes as a
supercritical HEC-2 file if 1 is in the 4th field of J1 record. The starting cross section in the
supercritical HEC-2 file is from the most upstream location and the cross
sections are arranged in the upstream to downstream direction. The output information is also in upstream
to downstream direction. For
supercritical HEC-2 files, RASPLOT will rearrange internally the results and
plot the profile from downstream to upstream direction.
You will need to open a folder on
your computer hard disk or on a network by clicking File Menu and selecting
Create Blank Database command.
Select the Drive where you want the
file to be located. In the folders
list, double click folders until you open the folder you want the file to be
located. Type the primary name of the database
file in the "File Name" box and click the "OK" button. RASPLOT will assign '.mdb' as an extension
to the newly created Profile Table.
Type number of profiles to be
plotted in the pop-up window.
Open the table using Microsoft
Access, and insert the data into table "Working"
Please note: The user
should not modify the Landmark, Panel, or Work Header Tables outside of
RASPLOT. In addition, the data inside
the table "Working" should not be sorted.
To do so, may cause RASPLOT to not function properly.
The Working Table includes the
columns, river, reach, river station, structure, length chnl, cum dist, min ch
el, low chord, high chord, label letter, label text, and profile numbers.
River
This is the river name from the
HEC-RAS Report File. For HEC-2 the default is "1". Any letters or numbers can be entered in
this column.
Reach
This is the reach name of the given
river from the HEC-RAS Report File. For
HEC-2 the default is "1". Any letters
or numbers can be entered in this column.
River Station
This is the River Station from
HEC-RAS or the SECNO from HEC-2
file. Every entry in this column must
be numerical. Letters must not be
entered.
Structure
The type of structure, such as
bridge, culvert, and inline weir, is shown under this column.
Please use:
BRIDGE-Up or BRIDGE-Dn for Bridges
CULVERT-Up or CULVERT-Dn for
Culverts
INLINE-Up or INLINE-Dn for Inline
Wiers
LID-Up or LID-Dn for long culverts
and for culverts in series
HEC-RAS
|
Bridge
|
BRIDGE-UP is labeled at the River Station where the bridge
upstream internal section is located.
|
|
BRIDGE-DN is labeled at the River Station where the bridge
downstream internal section is located.
|
|
Culvert
|
CULVERT-UP is labeled at the River Station where the
culvert upstream internal section is located.
|
|
CULVERT-DN is labeled at the River Station where the
culvert downstream internal section is located.
|
|
Inline Weir
|
INLINE-UP is labeled at the River Station for the upstream
face of the weir where the inline weir profile data is specified.
|
|
INLINE-DN is labeled at the same River Station for the
downstream face of the weir.
|
|
Multiple Opening*
|
If the bridge is within the left and right channel bank
stations the word 'Bridge #*-Up' is labeled
for the bridge upstream internal section at the River Station where
the Multiple Opening is modeled.
|
|
If the bridge is within the left and right channel bank
stations the word 'Bridge #*-Dn' is labeled for the bridge downstream
internal section at the River Station where the Multiple Opening is modeled.
|
* represents the number
assigned to the bridge within the channel bank stations by the HEC-RAS program.
HEC-2
|
Special Bridge
|
The word 'Bridge-Up' is labeled at the cross-section
immediately upstream (Section 3) of Special Bridge card. An additional cross section is inserted by
the RASPLOT program with the same section number as Section 3 and labeled as
'Bridge-Dn'.
|
|
In some situations, inline weirs, dams, and culverts, are
modeled as the Special Bridge routine in HEC-2. To change the type of structure, the name of the structure in
the Profile Table should be changed according to the following:
·
For culvert, replace BRIDGE-Up with CULVERT-Up and
BRIDGE-Dn with CULVERT-Dn. and also check that low chord elevations of the
culvert with the value given for the bridge under low chord column.
·
For Inline weir and Dam, replace BRIDGE-Up with
INLINE-Up and BRIDGE-Dn with INLINE-Dn and remove the low chord elevation of
the bridge from the low chord column.
|
|
Special Culvert
|
RASPLOT creates two additional cross sections for Special
Culvert routine. One is for the
culvert upstream internal section and labeled as 'Culvert-Up' and the other
is for the culvert downstream internal section and labeled as
'Culvert-Dn'. The same section number
for Section 3 of the Special Culvert routine is assigned for these sections.
|
|
Normal Bridge
|
The word 'Normal' is labeled for structures that are not
modeled as Special Bridge or Special Culvert routines. The word 'Normal' is labeled at the cross
sections with BT or X2 records.
|
|
In some situations, inline weirs, dams, culverts, and
bridges are modeled as the Normal Bridge routine in HEC-2 To change the type
of structure, the name of the structure in the Profile Table should be
changed according to the following:
·
For bridge, replace 'Normal' with BRIDGE-Up and
BRIDGE-Dn and check the low chord elevations of the bridge with the values
given in the low chord column.
·
For culvert, replace 'Normal' with CULVERT-Up and
CULVERT-Dn and check the low chord elevations of the culvert with the values
given in the low chord column.
·
For Inline weir and Dam, replace 'Normal' with
INLINE-Up and INLINE-Dn and remove the low chord elevation from the low chord
column.
|
Length Channel (LENGTH CHNL)
This is the length of the channel
at the River Station from the downstream cross section.
HEC-RAS
|
Lengthchannel is obtained from the user
table RASPLOT except, for the culvert and inline weir.
|
|
Culvert
|
The length of the cross-section at Section 3 is equal to
the Upstream Distance from culvert data. The length of the cross-section at
Culvert-Up section is equal to the length of the culvert. The length of the cross-section at
Culvert-Dn section is computed by subtracting the summation of Upstream
Distance and the culvert length from the channel length at Section 3. Channel length at Section 3 is obtained
from the cross sectional data in the HEC-RAS Report file.
|
|
Inline Weir
|
The length of the cross-section at Section 3 is equal to
the Distance from Deck/Roadway data.
The length of the cross-section at Inline-Up section is equal to the
Width from Deck/Roadway data. The
length of the cross-section at Inline-Dn section is computed by subtracting
the summation of Distance and Width from the channel length at Section
3. Channel length at Section 3 is
obtained from the cross sectional data in the HEC-RAS Report file.
|
HEC-2
|
Length channel is obtained from the SUMMARY Table, column XLCH, except
for the Special Culvert routine.
|
|
Special Culvert
|
The length of the cross-section at Culvert-Up section is
equal to the length of the culvert and is obtained from the SC record in the
input file. RASPLOT subtracts the
culvert length from the channel length at Section 3 and divides by two. This
length is assigned as the channel length at Section 3 and the channel length
at Culvert-Dn section. The distances
at the culvert cannot be zero or a negative number.
|
|
Special Bridge
|
The channel length at
Bridge-Up section is equal to the channel length at Section 3. RASPLOT assigns a value of zero as channel
length at Bridge-Dn section.
|
Cumulative Distance (CUM DIST)
Cumulative distance is computed by
the RASPLOT program by adding the Length Channel values from a downstream to an
upstream direction.
Minimum Channel Elevation (MIN CH EL)
This is the lowest ground elevation
within the channel bank stations.
HEC-RAS
|
Minimum Channel
Elevation is obtained from the Min Ch El column from the user table RASPLOT
except for the culvert, inline weir, and multiple opening.
|
|
Culvert
|
Minimum
Channel Elevation at the Culvert-Up and Culvert-Dn section is equal to the
culvert invert elevation, and it is obtained from the culvert data in the
HEC-RAS Report file.
|
|
Inline Weir
|
Minimum
channel elevation at the Inline-Up section is equal to the minimum channel
elevation at Section 3, and minimum channel elevation at the Inline-Dn
section is equal to the minimum channel elevation at of the cross-section
immediately downstream (Section 2).
|
|
Multiple Opening
|
RASPLOT
first determines the type of structure within the channel bank stations. If it is a bridge, the Minimum Channel
Elevation is obtained from the user table RASPLOT. If it is a culvert, the Minimum Channel Elevation is equal to
the culvert invert elevation. The
type of structure is obtained from the Multiple Opening data in the HEC-RAS
Report file.
|
HEC-2
|
Minimum Channel
Elevation is obtained from the SUMMARY Table, ELMIN column except for the
culvert.
|
|
Culvert
|
Minimum
channel elevation at the Culvert-Up section is equal to the ELCHU value from
the SC record, and minimum channel elevation at the Culvert-Dn section is
equal to the ELCHD value from the SC record.
|
Low Chord
For the bridge, this is the
elevation of the low chord. For the
culvert, this is the elevation of the crown of the culvert. For inline weirs and dams, low chord
elevation is assumed to be equal to the Minimum Channel Elevation.
HEC-RAS
|
Bridge
|
The ground station with the minimum channel elevation
between the channel bank stations of the bridge internal section is first
determined by the RASPLOT program, then the low chord elevation at this
station is determined from the Deck/Roadway data. Low chord elevation is determined in this manner for both
Bridge-Up and Bridge-Dn sections.
|
|
Culvert
|
For a single culvert, the low chord elevation is computed
by adding the Rise to the culvert invert elevation. Low chord elevation is determined in this manner for both
culvert-Up and Culvert-Dn sections.
|
|
For multiple culverts, RASPLOT selects the culvert with
the centerline station nearest to the ground station with minimum channel
elevation. Then low chord elevation
is determined in the same manner as the single culvert.
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Multiple Opening
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RASPLOT first determines the type of structure within the
channel bank stations. If it is a
bridge, then the procedure to determine the low chord for the bridge is
followed. If it is a culvert, then
the procedure to determine the low chord for the culvert is followed.
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HEC-2
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Special Bridge
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The low chord elevation from the X2 record is used. The same value is used for both Bridge-Up
and Bridge-Dn sections.
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Special Culvert
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The low chord elevation for Culvert-Up section is computed
by adding the Rise to the ELCHU value and the low chord elevation for
Culvert-Dn section is computed by adding the Rise to the ELCHD value.
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Normal Bridge
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The ground station with the minimum channel elevation
between the channel bank stations of section 3 and 4 of normal bridge routine
is first determined by the RASPLOT program.
Then the low chord elevation at this station is determined from the BT
and X2 data.
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High Chord
For all the structures, the ground
station with the minimum channel elevation between the channel bank stations is
first determined by the RASPLOT program.
For HEC-RAS, the high chord elevation at this station is determined from
the Deck/Roadway data. High chord
elevation is determined in this manner for both Upstream and Downstream
sections. For HEC-2, the high chord
elevation at this station is determined from the BT or X2 data.
The RASPLOT creates the profile
along the center line of the stream.
The centerline of the stream is assumed to follow the minimum channel
elevation between the channel bank stations.
The high chord and low chord elevations shown in RASPLOT are at the
location where the stream centerline crosses the structures. The user needs to review the FIRM and\or the
model to determine the type of flow at the structure. The profile should not be used to determine the type of flow.
Label Letter
This column is used to place
letters at various River Stations on the profile. For a given River Station, type the letter you wish to show. No more than three letters or numbers can be
shown in this column.
Label Text
This column is used to place a
label at any River Station on the profile.
For example, corporate limits, road names, confluence of stream, etc.,
can be placed in this column.
Profiles
Water-surface elevations of the
profiles from HEC-RAS, HEC-2, or user inserted values are shown in these
columns.
HEC-RAS
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Water-surface
elevations for the selected profiles are obtained from the RASPLOT user
table, except for the culvert and the inline weir.
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Culvert
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The water surface profile through the culvert is selected
by the RASPLOT program, depending upon the type of flow:
·
If the type of flow is low flow, the water-surface
elevation at the Culvert-Up section is equal to the Culv WS In value from the
RASPLOT table, and the water-surface elevation at the Culvert-Dn section is
equal to the Culv WS Out value from the RASPLOT table.
·
If the type of flow is pressure flow, the
water-surface elevation at the Culvert-Up section is equal to the
water-surface elevation at Section 3, and the water-surface elevation at the
Culvert-Dn section is equal to the Culv WS Out value from the RASPLOT table.
·
If the type of flow is weir flow, the water-surface
elevation at the Culvert-Up section is equal to the water-surface elevation at
Section 3. The water-surface
elevation at Culvert-Dn section is obtained by adding the depth of weir flow
over the upstream Deck/Roadway profile to the downstream high chord
elevation.
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|
Inline Weir
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The water-surface elevations at the Inline-Up and the Inline-Dn
are equal to the water-surface elevation at Section 3.
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HEC-2
|
Water-surface
elevations for the selected profiles are obtained from the SUMMARY Table
except for the culvert.
|
|
Culvert
|
The water-surface elevation at Section 3 is used at
Culvert-Up and Culvert-Dn sections.
|
|
Inline Weir
|
The water-surface elevations at the Inline-Up the
Inline-Dn are equal to the water-surface elevation at Section 3.
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Drawdown
Drawdown is defined as a situation
where the upstream water-surface elevation (WSEL) is lower than the downstream
WSEL. For flood insurance studies
drawdowns should be eliminated from the profiles. RASPLOT will eliminate the drawdown by drawing a horizontal line
from the downstream WSEL until it intersects with the original profile, thus
removing the upstream WSEL that is lower than the downstream WSEL.
This chapter explains the Menu Bar
and Tool Bar in the RASPLOT program, how to select river and reaches from a
stream network with multiple rivers and reaches, how node names from HEC-RAS
are displayed, how to assign backwater elevations, how to select profiles if
the Working table has multiple profiles and only some profiles are to be
plotted, what data should be entered in the Header Information, how to tailor
the panel information, how to insert horizontal or vertical notes, what HEC-RAS
project information is stored, and how the structure and stream bed symbols are
displayed.
This window has the Menu
Bar and the Tool Bar as shown in the following figure.
The File menu
includes the following commands:
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Open
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This
command opens the 'Open File' dialog box to select HEC-RAS or HEC-2 files or
to open an existing Profile Table Database.
|
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Extract Data
|
This command extracts data of the currently selected
HEC-RAS project file or HEC-2 input file.
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Print Data
|
This command prints the RASPLOT profile table.
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Save Database
|
This command saves the open profile database file.
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Save DXF File
|
This command creates a DXF file.
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DXF Editor
|
This command opens the DXF editor program.
|
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Setup Program
|
This
command opens a dialog box that allows the user to locate ras.exe, hec2.exe files, and set-up a default directory.
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Create Blank
Database
|
This command creates a user defined database to be used
for non-HEC-RAS or non-HEC-2 hydraulic models.
|
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Exit
|
This command exits RASPLOT.
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The View menu
includes the following commands:
|
HECRAS Project Info
|
This
command displays the following information about the HECRAS project
file:
·
Title of the Project file and its original path
·
Title of the Plan file and its original path
·
Title of the Geometry file and its original path
·
Title of the Flow file and its original path
·
Project description
|
|
Zoom In
|
This command allows you to draw a window around an area
you wish to view at a closer scale.
|
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Zoom Out
|
This command allows you to reduce the picture size by 10%.
|
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Full Extent
|
This command allows you to restore the profile to its
original size.
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