gp e getting started din

RM Bridge Professional Engineering Software for Bridges of all Types

RM Bridge V8i

September 2010

TRAINING GETTING STARTED MODELER DIN

RM Bridge General

Training Getting Started Modeler DIN I

Bentley Systems Austria

Contents

1 General ......................................................................................................................... 1-1

1.1 The Example (Tutorial) ....................................................................................... 1-2

1.2 The Structural System.......................................................................................... 1-2

1.2.1 Support Constraints ......................................................................................... 1-3

1.2.2 Cross-Section ................................................................................................... 1-3

2 Program Start ............................................................................................................... 2-1

3 Creating a New Project Directory................................................................................ 3-1

4 Construction of Axis .................................................................................................... 4-3

4.1 Create an Axis...................................................................................................... 4-4

4.2 Constructing an Axis in Plan ............................................................................... 4-4

4.3 Constructing an Axis in Elevation ....................................................................... 4-7

4.4 Modify ................................................................................................................. 4-9

5 Construction of Cross-Section ..................................................................................... 5-1

5.1 Definitions ........................................................................................................... 5-4

5.1.1 Construction Lines ........................................................................................... 5-4

5.1.2 Cross-section and axis ..................................................................................... 5-4

5.1.3 Cross-section.................................................................................................... 5-4

5.1.4 Cross-section element ...................................................................................... 5-4

5.1.5 Part ................................................................................................................... 5-4

5.1.6 Reference Points .............................................................................................. 5-5

5.1.7 Reference Sets ................................................................................................. 5-5

5.1.8 Layer Management .......................................................................................... 5-5

5.2 Definition of Construction Lines ......................................................................... 5-6

5.3 Cross-Section Elements ....................................................................................... 5-9

5.4 Definition of Reference-Sets ............................................................................. 5-11

5.4.1 Connection Points .......................................................................................... 5-11

5.4.2 Stress Points ................................................................................................... 5-13

5.4.3 Reinforcement Groups ................................................................................... 5-15

6 Segment Definition ...................................................................................................... 6-1

6.1 Definition of the Structural System ..................................................................... 6-2

6.2 Definition of Segment Points .............................................................................. 6-2

6.3 Cross-Section Assignment ................................................................................... 6-3

RM Bridge General

Training Getting Started Modeler DIN II


6.4 Assignment of Element Numbers ........................................................................ 6-4

7 Definition of Supports ................................................................................................. 7-1

7.1 Geometrical position of bearing: ......................................................................... 7-1

7.2 Definition of Support ........................................................................................... 7-2

8 3D - View .................................................................................................................... 8-1

9 Export to Analyzer .................................................................................................... 9-1

9.1 Export to Analyzer ............................................................................................ 9-1

10 Data management and backup ................................................................................... 10-2

RM Bridge General

Training Getting Started Modeler DIN 1-1


1 General

In this example, the necessary definitions for modeling the bridge structure will be shown

step by step. The subprogram Modeler is a geometry-preprocessor. The following geome-

tric data should be defined:

Axes The street-axes geometric location. The definition is done in ground, elevation plan. It provides straight line,

circle, spiral and cubic curve elements which are usual-

ly used for the street design.

Cross-section Cross-section definition, typical for cross-section in main girder (hollow box) and pier (rectangle).

Segment The different structure parts are assigned to a seg-ment.(i.e. segment for main girder, pier, link segment).

The segments will be closed to each other according to

the static connection after the assignment.

Static system Preparation for the static system (the static analyze is executed in RMBridge)

The start point of one axis should be located in the global-coordination system in ground-

plan(X and Z-coordination) or in elevation plan (the desired position and the height) at first.

The segment is created by assigning cross-section to one section of an axis. Use the axis

station to define the start point and the end point of a section.

The segment is subdivided into segment points. The cross-sections are assigned to these

points. In the segment point list (in Modeler), each segment point has its own station and is

defined with certain distance to the next one. After the export to RMBridge, the stations will

be converted into structure nodes. The distance between the segment points will be the

length of element. They are used for static analyze in RMBridge.

RM Bridge General



1.1 The Example (Tutorial)

A two span T-beam structure (see Fig. 1) will be created, it consists of one axis, one seg-

ment (60 m).

Fig. 1: T-Beam with 2*30m span wise

1.2 The Structural System

A1 A3 30m

10x3m

A2

10x3m

30m

Fig. 2: Structural System

Axis in plan: Part 1: straight line: Station: 0-60 m

Axis in elevation: Part 1.: straight line: Station: 0-60 m

The numbering: Node numbers (span wise): 101-111-121

Element numbers (span wise): 101-110,111-120

Support (spring) elements: 1100, 1200, 1300

RM Bridge General



1.2.1 Support Constraints

A 1 A 2

X

Z

101-110

A 3

111-120

1100 1200 1300

Fig. 3: Defined Support Constraints

1.2.2 Cross-Section

8.00 m

3.50 m 3.40 m

0.10 m

1.00 m

2.0

0 m

1.6

5 m

0.2

5 m

0.1

0 m

Fig. 4: T-Beam Cross-section

RM Bridge Program Start



2 Program Start

After the program installation, you can find the RM-Icon on the desktop.

The program can be started by double-clicking this symbol or selection in the window-

startmenu.

RM Bridge Creating a New Project Directory



3 Creating a New Project Directory

The program starts and the main window of RmBridge appears.

Double-click the RM-Icon to start the program.

If the program starts for the first time, RM-Default database(material, tables and variables

which are depend on different standards) and cross-section catalog will be loaded, the project

starts in the installation directory. The program starts always in the last work directory. The

complete pad is shown on the top of main window.

First le

vel

RM Bridge Creating a New Project Directory



Cre

ate

a n

ew

pro

ject dir

ecto

ry

Use File change work directory in main

menu to change the

project into the desired

directory.

The project should be

initialized. In the set-

ting window, you can

set some general op-

tions (i.e. Standard,

material group).

After the initialization,

the modelling-process

can begin.

RM Bridge Construction of Axis



4 Construction of Axis

Axis elements are used to define the axis in plan. For this example the axis is straight.

Click Modeler in the navigation to start Modeler. Use Modeler to prepare the geometry of

the bridge. The project is shown in the ground plan (empty yet).

The input window changes according to the selected geometric definition (navigation

menu). Modeler can be closed by pressing Esc-button or click the close icon x. It is also possible to exit Modeler that if you switch to another function, which could be found in

the navigation menu and not a sub-function of Modeler.

In helpbrief help for Icons you can find the description for different functions.

Note: Recalc-function in Modeler(GP) and Analyzer(RM) are not the same. In Modeler, the Re-calcfunction is used to export the Modeler data to Analyzer. But in Analyzer, the Recalc function is used to start the calculation. The calculation options can also be set in the Re-calc-function.

The import and export function for Tcl-file works in the same manner. The import and export

process is executed in the Modeler database (if Modeler is active) or in the Analyzer database

(if Analyzer is active).

Close Modelers

View and zoom function

Functions, which are pro-

vided in ground plan

Recalc(Export the data from Modeler to Analyzer (RM))

Navigation menu

Use tcl files to import

and export the Modeler

data.

Input window Axes in ground plan




There is a detailed description about data management and backup in RmBridge, see

chapter 1010.

4.1 Create an Axis

The geometric definition of one axis consisting of axis-elements. The definition should

be done in ground, elevation plan. The axis-element can be a straight line, circle, spiral

and cubic curve elements.

Define a

n A

xis

New Axis:

A new axis should be

defined at first. Select

the axis-menu in the navigation. Click the

right mouse-button and

choose new axis

Confirm

If there are more axes existing, double-click the desired axis to select it.

Active

The currently active

axis is shown in the

information-bar at the

left lower corner (

Axis1 in this exam-ple).

4.2 Constructing an Axis in Plan Axis in plan: straight line: Station: 0-60 m

Select ground plan list in the navigation-menu.




Select P0 in order to

define the starting point

of the axis in the

ground plan. The coordinates for the

starting points (X =

east, Y = north).

Confirm

Keep the default set for this example (P0 (0.0/0.0).). The new axis goes along the X-

direction, no angle needs to be defined. After input confirmation the point with the speci-

fied direction are visible on the screen. Please use the Zoom functions at the left vertical tool bar (or use Free hand symbols, see next page) to view.

Select Append straight

line to axis from the

tool-bar.

The length of the

straight line is 60.0 m.

Confirm

The axis is now defined in the ground plan and is displayed on the screen.




Top level of M

OD

ELE

R w

ith a

xis

in p

lan

Alternatively to the zooming facilities, the so called free hand symbols can be used. Such a free hand symbol is executed with the left mouse button and simultaneously pressing

[Ctrl]-key on the keyboard. The free hand symbolV creates a full view of the cur-rently available items.

The other free hand symbols can be viewed by clicking the explanation button on top of the screen.




4.3 Constructing an Axis in Elevation Axis in Elevation: planar line: Station: 0-60 m

Select elevation graphic or elevation list to specify the elevation.

Select P0 to define the starting point of the

axis.

The default setting can

be kept.

Confirm

Select the button ap-

pend straight line by

station and set Station

Difference to 60 m..

Confirm

Now the axis definition is finish. You can use the zoom-function as explained above to

check the axis.




Ele

vation o

f A

xis




4.4 Modify

The Delet last axis element button allows to delete the last input.

Modific

atio

ns

Modifications to the axis

definition in plan and

elevation can be done in

the ground plan list or

elevation list.

In the list, the existing

element can be modi-

fied. By modification,

you should pay atten-

tion, that some elements

are related to each other,

they can only be

changed in the right se-

quence.

The upcoming listing

allows to change data in

any line (radius, slope,

lengths, ..).

Confirm with .

and the win-

dow.

Use Modify button to modify.

Use Delete button to eliminate the input data.

RM Bridge Construction of Cross-Section



5 Construction of Cross-Section

8.00 m

3.50 m 3.40 m

0.10 m

1.00 m

2.0

0 m

1.6

5 m

0.2

5 m

0.1

0 m

Fig. 5: Cross Section

Click cross-section in the navigation-menu with the right mouse-button. Select New Cross Section in the context.

Define C

ross-S

ection

The basic definitions

for the cross-section

name can be used, con-

firm with .

Confirm




The new cross-section is listed

in the navigation-tree on your

left. Several cross-sections can

be defined in one project, only

one is needed for this example.

Changing between the cross-

sections is done by double-

clicking on the desired cross

section.

Aktive C

S

The active CS is always dis-

played at the lower window on

the information-bar. All further

CS definitions will refer to this

Cross-Section (cross1).




Select the cross-section to open the graphic input screen.

CS

Win

dow

Draw functions for con-

struction line

Draw functions for FE-Element in

Cross-section network

Draw functions for Refe-

rence point

Draw functions for Dimen-

sion line

Different view- and

zoom functions

Reference-Sets (Click the arrow to

open it) and shows the active Ref-

Set.

Cross-section Part (Click the arrow to

open it) and shows the active parts.

Variables in the cross-section (Click

the arrow to open it) and shows the

active variables or constants, which are

used in this cross-section to define the

construction line.

Basic construction line CL1 and CL2 ()

(The default directions are along Z- and

Y-coordination axes in the cross-section)

Default position for part 1 (in the inter-

section point of CL1 and CL2). It is

marked by a small flag and the part

number.

Direction




5.1 Definitions

5.1.1 Construction Lines

The construction line (CL) is needed for locating the intersection points, which are used to

draw a FE-element. The FE-elements construct the cross-section network. Use the draw-

functions to create the construction lines. The construction lines are referenced on each

other (i.e. parallel to). All the construction lines are depends on CL1 (horizontal) or CL2 (vertical).

Note: Different dependencies of construction lines on each other are important for defining construction lines

with variables. The assigned variables are given in Tables and formulas. The influence of variables on the other construction lines should be considered.

5.1.2 Cross-section and axis

The default position of CL1 and CL2 are the Z- and Y- coordinate-axis of cross-section.

The intersection point of CL1 and CL is the connection point of cross-sections.

Note: Use Offset-option can move cross-section position (CL1, CL2) relate to the Axes.

5.1.3 Cross-section

In order to create a cross-section, the elements are required, which defined by intersection

point of construction lines. Every element is a build-part of the cross-section.

Note: The construction of cross-section is done in the direction against X-axis.

5.1.4 Cross-section element

The shape of the cross-section is defined by individual elements. These elements are based

on the intersection points of the construction lines. These 2 dimensional elements are cre-

ated with either 3 or with 4 corner nodes. A polygonal line around the element defines the

border, the first and the last polygon part close the element. The order of input does not

matter (cycle), the polygonal line must not cross itself.

5.1.5 Part

The cross-section elements with different properties can be summarized into different

groups (part). I.e. For the composite cross-section, the concrete elements and the steel ele-

ments should be assigned into different groups.

Note: Parts can also be used to assign the different static length system of one cross-section into

different part. (i.e. Doppel-T cross-section prepared as Grillage, that means instead of two

single cross-section (each -T)to two different segments, you just need one cross-section and one segment, the cross-section consists of two parts for two separate longitudinal ele-

ment series ),




5.1.6 Reference Points

The intersection of CL1 and CL2 represents the axis of the bridge and acts as a reference

point for the position of the cross-section in the overall 3D geometry.

5.1.7 Reference Sets

In addition to the cross-section geometry information for the structural analysis such as

temperature points, reinforcement layers, stress points and others are defined in so called

reference sets. Properties (e.g. material) of a Reference Set can be defined and grouped in so called Attribute Sets.

5.1.8 Layer Management

Each object of the cross-section can exist in all, one or several graphical layers.




5.2 Definition of Construction Lines

Six vertical and four horizontal lines are needed for the following cross-section. First paral-

lel and vertical lines with a distance of 4.0m to the centre are defined.

Consta

nts

Set the constant to 4.0

in the vari-ables/constants-input field.

Press the icon Parallel Line to activate this function. The graphic cursor is then displayed

as continuous line indicating a function being active.

During the execution of this action the following information is displayed in the status

line:

Select the vertical line as basic line (CL_2).


line:

Click to the right side of the selected line to create a new construction line. This new CL

has a distance of 4.0m to the centre.

Create the second line on the other side in the same way:

Select the vertical basic line.

Click to the left side of the selected basic line (CL_2) to create a new CL. This new CL

has a distance of 4.0m to the centre.




CS

win

dow

The next figure shows the rest of the needed CLs with the corresponding distances . The

procedure is the same as explained above. Click at the vertical or horizontal basic line and

set the constant to the appropriate value.




The following overview shows all necessary construction lines for this example:

CS

Win

dow

4.00 4.00

0.2

5

2.0

0

0.6

0.5 0

.35

Basic lines CL1 and CL2




5.3 Cross-Section Elements

After all CLs are available the cross-section elements can be defined:

Activate the "Cross-section element by selecting the appropriate icon.


line:

Click at the intersection points of the construction lines to create the corner nodes 1, 2, 3

and 4 of the new element (see picture below). The new element is automatically assign

to part 1, thus the number 1 appears in the middle of the element. (Different parts are

needed in composite constructions, see next training)

CS

Win

dow




All other elements are generated in the same way. Please make use of the zoom functions

to properly select the intersection points. A wrong definition can be interrupted by hitting

the key (or right mouse button). A wrongly defined element can be selected (ele-

ment line changes colour) and deleted with the delete icon.

Elements can be copied and mirrored to speed up the input. These icons can be found with

right click above the icon Linear 4-Point-Element.

The cross-section of this example consist of 4 elements only, see picture below:

CS

Win

dow




5.4 Definition of Reference-Sets

Four sets are used in this example: 2 for reinforcement layer (top and bottom), one for the

stress points (to calculate stress at top and bottom fibre at a certain point). The forth set is

needed to define the geometrical position of the support springs (connection points).

5.4.1 Connection Points

Select the arrow key next to the reference point.

Refe

rence

-Sets

Create a new reference

set with the name sup-port and select the type connection point .

Confirm

Connection p

oin

ts

This new reference set

is inserted in the table

of existing reference

sets. Several sets can be

defined in one project.

Select the wanted set

and hit to change

the active set

Insert

Active

The activated reference

set will be displayed in

the input field. All

definitions on the

cross-section level will

now refer to this refer-

ence set.




Select the icon for the

connection point defini-

tion.

Connection p

oin

t

Select the intersection

of CLs with cross-

section element border

to define the position of

the reference point.

Sin

gle

Po

int

The upcoming window

asks for the name of

this new point (CP0 in

this case).

Confirm




5.4.2 Stress Points

Open the reference set input window by clicking the arrow key next to it.

Refe

rence

-Sets

Select Insert after button to add another

reference set to the list-

ing.

Insert

Str

ess P

oin

ts

Create a new set with

the name STRESS and select the type

Stress check points . The Attribute-Set is

named similar to the set

name: STRESS

Confirm

The newly defined reference set is inserted in the table of available reference sets.

Select the new set and hit to activate the reference set.

Active

The active reference set

is displayed in the

lower side of the win-

dow. All definitions

from now on will refer

to the active reference

set (STRESS in this case).





stress point definition.

The intersection point

is selected by clicking

it with the cursor in

order to define the

wanted position of the

reference point.

The upcoming window

asks for the definition

of the point name for

the selected point

(SP_TOP in this case).

Confirm


stress point definition.

The intersection point

is selected by clicking

it with the cursor in

order to define the

wanted position of the

reference point.

The upcoming window

asks for the definition

of the point name for

the selected point

(SP_BOT in this case).

Confirm




5.4.3 Reinforcement Groups

Reinforcement is defined either as one or more single points or polygons. Reinforcement

areas that are assigned or automatically calculated later are distributed over these points and

polygons. Positions are defined relative to construction intersection points or cross-section

element nodes. The sole geometry is stored in form of Reference-Sets, which may be

grouped and addressed by Attribute-Sets. Attribute-Sets hold additional information such as

material definitions. In most cases the Attribute-Set names are identical to the Reference-

Set names.

First a Reference-Set is created as already shown above.


Refe

rence

-Sets

Use the Insert after button to define a new

Reference-Set.

Insert

Rein

forc

em

ent

Top

Create a new Refer-

ence-Set with name

REBAR_TOP and select type Bending Reinforcement. Use the same name again

(REBAR_TOP) for the Attribute-Set and

assign the wanted ma-

terial.

Confirm






Select the appropriate

icon for the reinforce-

ment definition.

Select the element cor-

ner to which the refer-

ence point is relative to

using the mouse cursor.

The upcoming window

requires data for point

type, point name and

offset to the selected

element corner. The

new point will be the

start of the reinforce-

ment polygon.

Confirm



ment definition.





The upcoming window




element corner. The


end of the reinforce-

ment polygon.

Confirm

After the reinforcement definition at the top layer is defined the bottom reinforcement will

following as next:





Refe

rence

-Sets

Use the Insert after button to define a new

Reference-Set.

Insert

Rein

forc

em

ent B

ottom

Create a new Refer-

ence-Set with name

RBAR_BOT an se-lect type Bending Re-inforcement. Use the same name again

(REBAR_BOT) for the Attribute-Set and

assign the wanted ma-

terial.

Confirm








ment definition.





The upcoming window




element corner. The


start of the reinforce-

ment polygon. Define

the polygon end point

in the same way.

RM Bridge Segment Definition



6 Segment Definition

The structural system consists of 2 span girders with a constant T-shaped cross-section.

Only one Segment is needed for this project.

Click Segment in the navigation-menu with the right mouse-button. Select New seg-ment in the contex.

De

fine S

egm

en

t

Name, type, reference

axis and eccentricity

type can be defined for

the new segment in the

upcoming window.

For this example the

default set is ok and the

name is seg1. After confirmation the new

segment will be avail-

able in the segment

listing.

Confirm

The newly created segment is displayed in the table of existing segments. Several seg-

ments may exist for one project. Changing the currently active segment is done by click-

ing the wanted segment and confirming with .




6.1 Definition of the Structural System

The next step in MODELER is the assembly of the structural system. A structural system consists of Elements, Nodes, Cross-sections and Material properties.

Each segment consists of several segment points. Each segment point is defined in 3D with

its position along the axis. The structural nodes are created using these segment points, the

structural elements are generated using the spacing between the segment points. Material

properties are assigned to the elements, the cross-sections are assigned to the segment

points.

6.2 Definition of Segment Points

Open the segment point listing by clicking the symbol on the right side.

Segm

ent P

oin

t Lis

ting

The table will be empty

since no data has bee n

defined yet.

Define new segment points by clicking the "Insert after" - button (at the left of the gen-

eral screen).

The structural system shall start at 0 and shall end at Station 60.0 m.

All elements will have a length of 3.0m, 20 elements will finally compose the girder. 10

elements for the left span and 10 elements for the right span.




Insert

Segm

ent

Poin

ts

The input for the Seg-

ment Points can be seen

in the Figure on the left

side.

A step of 3 m is used to define segment

points that will reflect

the element lengths of

the structural system.

Confirm

Segm

ent P

oin

ts

The structural system is

herewith defined. (60m

long with elements of 3

m length).

6.3 Cross-Section Assignment

The assigned cross-sections are shown in the segment list. The column OK describes if the cross-section at this stage is correctly defined for the further procedure. The + shows that at this station the appropriate cross-section is assigned. If this sign switches to - the cross-section was recently modified after it had been assigned to the segment.. In the lower

list all specified variables, parts and connections of the cross-section are displayed. Later on

tables and formulas will be assigned to those variables.




6.4 Assignment of Element Numbers

Ele

ment

num

be

ring

The element and node

numbering for the

whole system can be

done at once. First se-

lect parts to view the undefined parts. Only

one line is displayed

since the cross-section

exists only of one part.

The element numbering should start at segment point 1, the first element and node-number

should be 101. At the end of the first element (101) the nodenumber is 102. The in-crement is definition by 1.

The properties of the material is:C_35/45 (DIN 1045-1) will be applied.

All elements are grouped with the name MG (main girder).

Activate the 'Modify' - Function at the left of the table to open the input pad.




Ele

ment

num

be

ring

Definition for all seg-

ment points (1 to 21):

See Fig. on the left

siede.

Confirm

Segm

ent P

oin

t L

isting

The numbering can be

controlled by stepping

through the segment

point listing in the up-

per table.

The data to the cur-

rently marked line is

shown in the lower

table.

Any modification after this initial definition can be done, but must be exe-

cuted in MODELER before export the project to ANALYZER .




The cross-section 'cross1' is locked after this initial assignment. Any modification to the

cross-section requires to unlock the cross-section (program asks for it). Again must be executed in MODELER before the export to ANALYZER starts.

RM Bridge Definition of Supports



7 Definition of Supports

The following definitions are required:

A connection point is required for the support. It should be defined in the cross-section (see Definition of Reference-Sets).

Create the connection between sub- and superstructure with spring elements- see be-low:

7.1 Geometrical position of bearing:

CS

W

indow

/ A

dd. P

oin

ts

The green, triangular

symbol attached at the

bottom of the girder is

the geometrical posi-

tion of the bearing. The

definition is already

done in chapter 5.4.1.




7.2 Definition of Support

Open the segment point table.

Select the first line in the upper listing (Station 0).

Select the button for connection to open the corresponding input window.

Select insert before to see the possible

choices.

Select New spring-0 to open the correspond-

ing spring definition

window.




Supp

ort

De

finitio

n

The support spring

1100 represents the

connection between

girder and soil. The

position of this spring

element is done with

the assignment to the

nodes (Node1 = 0 =

earth, Node2 = 101 top

of girder)

Switch over to the input

of spring constants.

Press

Spri

ng C

onsta

nts

The spring constants

are defined here. The

element 1100 repre-

sents the support condi-

tion in vertical (X) and

transverse (Z) direc-

tion. A constant of 1e8

represents the stiffness

of the support condi-

tion.

Confirm

The newly defined spring element will be displayed in the table for support definitions.




Supp

ort

De

finitio

n

Press the i-button to see a graphical picture

of the support.

Several conditions can

be defined at any seg-

ment point. Select the

wanted line in the table

to see the correspond-

ing support condition.

The same procedure is repeated for the other two connections (segment point 11 und 21).

The element numbers shall be 1200 and 1300.

The table below shows the sprig constants for the spring elements.

Element 1100 1200 1300

Spring constants KN/M KN/M KN/M

CX 1e8 1e8 1e8

CY 0 1e8 0

CZ 1e8 1e8 1e8

CMX 0 0 0

CMY 0 1e8 0

CMZ 0 0 0

RM Bridge 3D - View



8 3D - View

The completed girder can be viewed in 3D now.

Select the corresponding button to open the 3D view.

3D

- V

iew

RM Bridge Export to Analyzer



9 Export to Analyzer

9.1 Export to Analyzer

The completed structural system can be transformed into a structural model for further use

in Analyzer.

Recalc: Some sub-functions are provided in the Recalc window for Modeler. They are separate

calculation parts. For complex project, sometimes the evaluate formulas check box

will not be selected to reduce the calculation time.

The Evaluate formulas has to be selected for further calculation options. Hamblyis a special algorithm to find the common gravity line of several different cross-section

areas. Precast segmentation is used in RMCast.

Check numbering of

elements and nodes:

To check if any element or node-number is used for more times. This option will be

set automatically, if the Create model is set.

Create model: Export the Modeler data to Analyzer. There are three sub-options can be set.

(1)Keep the original model data in Analyzer, only the new data will be added into the

database. (2) initialize the model structure in analyzer or (3) initialize the whole ana-

lyzer data (include the input data in Analyzer).

Select 'Recalc'-Icon to start the calculation and export the Modeler data to Analyzer .

Export

to A

na

lyzer

Export

Set the project calcula-

tion options. Click

to start the cal-

culation. After the cal-

culation, the Modeler

data can be exported to

Analyzer, if the Create

model option is set.

Close the input-window

to exit Modeler. The Analyzer part can begin.

RM Bridge Data management and backup



10 Data management and backup

Since the version RmBridge V8i, Modeler (previously GP) is the geometric preprocessor,

Analyzer (previously RM) is mainly used to prepare the static calculation. And they are

executed in the same user interface.

Nevertheless, Modeler and Analyzer have separate database. Executes the initialization,

both database are initialized.

The input-data writes according to the input window into different databases. Restart the

program, the database is in the last work state.

It is suggested to create backup-files, when a certain state is reached and the next modeling

state will begin. It cannot return to an unsaved state (Undo function). The backup-files are separate in Modeler and Analyzer database.

The database is exported in ASCII-text file (Tcl-format). That means the project-data can

be read and edited, they are stored in a readable text-file (use Text-Editor). In the text-

editor, it is possible to use script-languages for defining variables (loops and if..then) and so on. It simplifies and speeds up the input-process. When the project-data is imported,

the programmed routines are also executed.

By export and import Modeler-data, the entire project is always saved or loaded.

By export the Analyzer-database, there are additional options, which are able to assign cer-

tain project-part to export (Default: the entire project). So the single project-part can be

saved in a separate Tcl-file for further use. By import Tcl-file project data in Analyzer is

possible to make a part import Add to project, which just adds this Tcl-file to the current project. The option New project executes an initialization of the database and then loads the Tcl-file.

GeneralThe Example (Tutorial)The Structural SystemSupport ConstraintsCross-Section

Program StartCreating a New Project DirectoryConstruction of AxisCreate an AxisConstructing an Axis in PlanConstructing an Axis in ElevationModify

Construction of Cross-SectionDefinitionsConstruction LinesCross-section and axisCross-sectionCross-section elementPartReference PointsReference SetsLayer Management

Definition of Construction LinesCross-Section ElementsDefinition of Reference-SetsConnection PointsStress PointsReinforcement Groups

Segment DefinitionDefinition of the Structural SystemDefinition of Segment PointsCross-Section AssignmentAssignment of Element Numbers

Definition of SupportsGeometrical position of bearing:Definition of Support

3D - ViewExport to AnalyzerExport to Analyzer

Data management and backup

gp e getting started din

Documents

construction of axis

definition of reference

reference sets

types rm bridge v8i

reference points

new project directory

example tutorial

structural system