PREZENTARE AEFA

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TEHNICAL UNIVERSITY GHEORGHE ASACHI FROM IASI

FACULTY OF CIVIL ENGINEERING MASTER ISE

Professor, PhD.Dr. Ing.:ROSCA OCTAVIAN

Student: Turcanu Florin- EmilianMaster of Structural Engineering


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Workshop Goal and Procedure

Goal:

To be able to make an short and expressive introduction inRobot Structural and Design

Procedure:Create an explicit way of how we create and model a structure

Select the unit system and assign the material properties etc.Selection of loads, analysis settings , create combinations etc.

View of results and reports etc.


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Following opening of ROBOT Millennium, the user may configure the

working parameters or Preferences. To do this:

When the cursor is positioned on an icon, a short description of its functionis displayed.


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Job Preferences:

The dialog box, presented below, allows you to define general

program parameters to be used in a given project


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Structure AxisStructural axes can be used to make a user defined grid of arbitrary size and shape. The gridintersections

form points that allow fast and easy placement of members by guiding cursor movements during the graphic

structure definition. Structural axes are vital while moving within a structure model. Using them allows quick

display of the selected work plane (the View dialog box) and selection of elements positioned in structural

axes. Axis selection may be carried out using descriptions positioned on either ends of a structural axis.

Clicking on the description of the selected axis results in the selection of all structure elements situated on

this axis.


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Bars (members)Definition of structure starts with nodes and bars definition. In ROBOT Millennium only bar definition is

required, because the nodes are automatically created at the ends of bars. Robot Millenniumhas many

functions that make possible advanced modelling - bars subjected to tension and compression, offset,

releases, etc...

Sections:

Sections have the origin in main folders (RESIN (P.R.S),CATPRO, ARBED,UK, US etc), where they are either

Userdefined or determined in definition of classical profiles, or

defined by determining the value of geometrical parameters

(inertia moments, rigidity coefficients, etc).

Composite sections may also be defined. Elastoplastic

analysis may also be assumed for memberif this is done, the

program automatically investigates theformation of plastic zonesin the structure and re-distributes loads accordingly.


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PanelsROBOT Millennium is an Object basedsolution. Therefore the user generates the shape of the structure and

a panel object is then defined within a face. In this way the user need not concern themselves with FE

meshing,since ROBOT takes account of this automatically, to the users requirements indeed, is the shape

of the panel changes, the user need not worry about redefining loads or elementsthe program takes care of

this automatically When defining panels it is possible also to define reinforcement type, for subsequent

calculation of rc reinforcement and also to define tapering panels and panels with orthotropic properties


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ReleasesThe option allows the user to release (pin) selected degrees of freedom at a given structure node.

It is initially assumed that members are connected by means of fixed connections in nodes, i.e. rotation and

displacement compatibility is ensured for all the bars meeting at a given node. The only exceptions are truss

bars and cables in frame structures, where pinned connections are used. They ensure identical displacements

in nodes, but allow any rotation of element ends. If needed, releases may be defined in fixed connections of

elements.


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Load case definition

In this step, you define load cases (their number, nature and description). Click icon (right side of the

screen) to open the Load Types dialog box.Click New to define a dead load (self-weight) with a standard

name DL1.Choose in the Nature field live, then New to define a live load with a standard

name LL1. We have now defined 2 load cases.Choose in the Nature field wind, then New to define a wind

load with a standardname WIND1 (in the same way define WIND2). We have now defined 4 load cases.

Loads definition for particular load cases

To define loads for LL1 case select the 2nd load case in the list of define cases field: - Load case LL1

selection. Click icon (right side of the screen) to open the Load Definition dialog box. On the Bar tab click

icon to open the Uniform load dialog box, then type value of load -3 in the pZ field, click Add (Uniform load

dialog box is automatically closed). MODEL DEFINITION | Loads definition for particular load cases 13

ROBOT Millennium - Getting Started Examples Guide Select beam span (no.3)indicate them or just type 3

in field Apply to. Click Apply.


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Structure AnalysisHere we start the analysis process, but firstly we will tell ROBOT Millennium to make automatic code

combinations (from any one of the list of Codes in Job Preferences): Select Loads > Code Combinations

option from the menu to open the Load Case Code Combinations dialog box. The program will now

automatically assign a number of combinations to find the most onerous load combination. Click Calculate

buttonautomatic calculation of code combinations will be done.

Here we start the analysis process, but firstly we will tell ROBOT Millennium to make automatic code

combinations (from any one of the list of Codes in Job Preferences): Select Loads > Code Combinations

option from the menu to open the Load Case Code Combinations dialog box. The program

will now automatically assign a number of combinations to find the most onerous load combination. Click

Calculate buttonautomatic calculation of code combinations will be done.


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Results Preview

Displaying beam results graphically.In this step, we display My bending moment on bars for selected load

case: Click icon at the bottom of the screen to switch off the section shape and

simply display a stick model for all members. In the list of defined load cases choose the desired load case

to display:Select Results > Diagrams for Bars from the menu to open Diagrams

dialog box. .RESULTS PREVIEW | Displaying beam results ROBOT Millennium - Getting Started Examples

Guide On the NTM tab check My (this shows the major axis bending moment on the beams), then click

Normalize button (to auto scale) and click Apply to display bending moments diagrams for all beams.

Graphical results for beams:


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Tabular results:

ROBOT Millennium tables can be easily transferred to MS

Excel by pressing the right hand mouse button. Inside

ROBOT Millennium, the tables can be manipulated in manyways, in the same

way as input tables: filtering data for specific load cases,

members or groups of members filtering data inside or

outside user defined limits showing global maxima and

minima for selected members, nodes or surfaces


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My structures ruled in Robot Millennium

Structure 1:

Made of steel


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Structure 2 made ofconcrete

M l d i R b Mill i


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My structures ruled in Robot Millenium

M t t l d i R b t Mill i


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Structure 3

Made of concrete



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Structure 4

2d truss



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