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Page 1: IDEA StatiCa prestressing

IDEA StatiCa ®

Calculate yesterday’s estimates

CONCRETE STEEL PRESTRESSING

Page 2: IDEA StatiCa prestressing

www.idea-rs.com

We are a company dedicated to analysis of structural members and details. Engineers

use IDEA StatiCa programs to design residential, civil and industrial structures.

Our software deals with both safety and economic efficiency of structures.

We constantly research and develop new structural analysis methods

to make every new construction safer and cheaper.

“We are structural engineers and make software for structural engineers” Lubos Sabatka, Jaroslav Navratil

WHAT WE DO

IDEA RS develops new generation of designing and checking programs. Structural engineers and consultants use them to design

residential, civil and industrial structures. We deliver a flexible system of programs to enhance output and working comfort

of every engineering office.

IDEA StatiCa ®

Calculate yesterday’s estimates

IDEA StatiCa ® enables engineers to design every new construction cheaper and safer by:

– Minimizing risks of structural defects

– Decreasing material consumption of construction members/details by up to 30%

– Reducing time spent on designing of construction members/details by up to 50%

– Providing 100% “white box” results for engineers, general contractors, checkers and construction authorities.

IDEA StatiCa ® has three main parts:

IDEA StatiCa Concrete

created for engineers dealing with concrete structures

IDEA StatiCa Prestressing

devoted to bridge and prestressed structures

IDEA StatiCa Steel focused on steel structures and joints

Our team has more than 25 years of experience in the field.

WHO WE ARE

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IDEA StatiCa Prestressing

www.idea-rs.com www.ideastatica.com

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www.idea-rs.com www.ideastatica.com

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IDEAStatiCaPrestressing

IDEA StatiCa Prestressing

StatiCa Prestressing is used by engineers for the design of members, cross-sections, and details of prestressed

concrete structures and bridges. The program is suitable for an extensive range of applications

in both pre- and post-tensioned concrete market. With respect to that IDEA StatiCa Prestressing is:

GEOMETRY• 2D/3D geometry of beams, curved in elevation

and plan, tapered beams

• Frames, columns, piers

• Uncoiling and vertical scaling of beam

• Predefined 3D shapes of tendon, table/DXF

input&output, geometry of tendon spacers

• User templates of reinforcement and tendon shapes

• Catalogue, general and composite CSS

ANALYSIS• Predefined types of construction stages

• TDA – Time-dependent analysis of creep

and shrinkage, creep non-linearity

• Redistribution and reduction of internal forces

• Prestressing loses

LOAD• Fatigue and accidental design situations

• Calculation of equivalent loads, balancing of external

loads

• Complete ULS and SLS combinations according

to EN 1990

• Bridge combinations according to EN 1991-2

• User defined internal forces

CHECKS• Complete ULS and SLS checks according

to EN 1992-1-1, EN 1992-2, SIA 262

• Cross-section capacity in flexure, shear, torsion,

interaction of N, Vy, Vz, Mx, My, Mz, fatigue, shear

in composite joint

• Serviceability – stress limitations, crack

width, decompression condition, brittle failure

• Stress-strain response N-M-M, diagram M-N-rotation,

short/ long-term stiffness, detailing rules

OUTPUTS• Graphical presentation of checks

• Brief output overview or detailed report

• Bill of material

• DXF export

SIMPLE AND EFFECTIVEenables easy input and fast design of the structure

COMPREHENSIBLEprovides clear information about beam behavior and utilization of particular sections

COMPLETEprovides comprehensive checks according to code requirements including references to code provisions, tooltips,

and explanations

Key features of IDEA StatiCa Prestressing

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IDEA StatiCa Prestressing

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Visit our website www.idea-rs.com to find out more.

Range of application

The program is suitable for a wide range of pre- and post-tensioned concrete structures.

Prefabricated beams

with various CSS

Bridge piers, columns,

prestressed trusses and frames

Beams and design strips

of post-tensioned slabs

Continuous beams

with composite slab

Civil and industrial buildings

Bridge structures

Bridges cast-in-place

into falsework

Precast hollow core slabs

with or without topping

Easy to Use, Correct and Complete Solution

Distinctive features of composite design module are completeness, comprehensiveness. Design methods fully comply

with complex Eurocode and SIA code requirements. At the same time the solution is easy to use and effective for daily

needs of industry professionals. Fast and simple input is done with help of specialized wizard. All data related to the analysis

of construction stages is generated automatically and they are presented in terms well known to the engineers, such as load

cases, combinations etc. Therefore they need not to adapt their workflow and logic to the complex method of analysis.

The objective was to provide correct and complete solution & make it easy. So the program is focused, simple, and fast tool

rather than generic and complicated puzzle.

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IDEA StatiCa Prestressing

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Structural model of design strip of post-tensioned slab

IDEA StatiCa Beam

IDEA StatiCa Beam is the module for analysis and design of continuous composite 2D and 3D beams made from pre- or post-

tensioned prefabricated or cast-in-situ elements made subsequently monolithic above supports by diaphragms and cast-in-situ

slab. The module contains the tools for simple input, structural analysis with respect to construction stages, creep, shrinkage

and concrete ageing, and code assessment.

WIDE VARIABILITY OF GEOMETRY• Single span or continuous beams with 2D/3D geometry, overhangs, haunches, general supports

• Straight or curved in plane and elevation, pitch

COMPREHENSIVE IMPLEMENTATION OF EUROCODE• Complete ULS and SLS combinations according to EN 1990 and EN 1991-2

• Design according to EN 1992-1-1, EN 1992-2

COMPLETE SOLUTION OF PRESTRESSING• Pre- and post-tensioned tendons of general shape

• Special input wizard

• Beam uncoiling and scaling

• Complete calculation of tendon losses

• Equivalent load determination and presentation

• Design of prestressing force by balancing of external loads

• Tendon user templates, DXF and TXT import and export

• Perfect and comprehensible check of cross section

• Bill of material

Unique features of design and check in IDEA StatiCa Prestressing

Easy to use, but at the same time general and complete solution.

Page 6: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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The definition of tendon geometry related to the shape of a designed structure can be a difficult design step

especially in case of curved structures. IDEA StatiCa Prestressing provides for the ‘uncoiling of the beam’

and simplifies this step – plus, you work in 2D and you make a 3D structure.

3D problem

By uncoiling the beam in the plan we simplify the problem to 2D geometry. Consequently the beam appears

straight in XY and XZ planes and the definition of tendon geometry is no longer a challenging task.

Uncoiling

The next step can be a complex job, which is the drawing of tendon shape in a slender prestressed beam!

It can be very challenging, because the beams are usually very long and shallow and one can hardly differentiate

the tendon’s details. That is why we offer the possibility to scale selected element vertically and horizontally.

Vertical and horizontal scaling

Tendon shape design

Scale your beam vertically to obtain clear drawing in comfortable arrangement.

Page 7: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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Design of tendon shape in 2D environment

Once we have prepared the uncoiled and scaled view of the beam, we can generate a default shape of the tendon automatically,

also with respect to support positions. If needed, the tendon shape can be adapted to meet any user defined requirements.

The magnitude of prestressing effects is controlled by prestressing force. According to Prof. T.Y. Lin, a portion of an external

load has to be balanced by the equivalent load caused by prestressing. The Load balancing method can therefore be used

for preliminary design of the prestressing force.

• Default shapes of tendon with extensive predefined shapes parabolic/polygonal

• Import from TXT, DXF

• User-defined templates

A 3D tendon profile is obtained by composing XY and XZ plane projections. In addition, the tendon is wound up the beam

and the beam is coiled back to its real shape. In this way we obtain tendon geometry related to curved shapes of a designed

beam quickly with no additional effort! As it is documented here by the examples, the effort is reduced to the situation

of straight beams.

Calculation of prestressing loses

Needless to say, tendon losses are calculated and tendon stress is checked against Eurocode 2/SIA 262 requirements.

The analysis of short-term losses fully respects all angular changes of 3D tendon geometry.

Equivalent load determination and prestressing force design

The equivalent load caused by prestressing is calculated automatically. You can display it and illuminate the effects

of prestressing – upward load acting against dead load and live loads. In this way IDEA Prestressing allows the user

to recognize the active role of prestressing in the design.

Page 8: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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Composite beam

IDEA StatiCa Beam is suitable for EN and SIA code design of various types of reinforced or prestressed beams with composite

slab, floors composed of prefabricated beams made subsequently monolithic by cast-in-place concrete, permanent shuttering

floor systems, composite bridge beams, and repair and strengthening old structures.

• Predefined types of construction stages

• Calculation of equivalent concrete age at prestressing

• Internal temporary supports with possibility of required

camber

• Time dependent analysis of creep, shrinkage, and ageing,

nonlinarity of creep

• Detailed design according to Eurcode and SIA 262

Continuous composite beams made from prefabricated elements made subsequently monolithic

Load history and its influence on redistribution of internal forces

Typical examples of composite concrete-to-concrete cross-sections

Time Dependent Analysis was extended to include the possibility of non-linear calculation of creep coefficient according

to EN 1992-1-1, provision 3.1.4 (4) in the case that compressive stress in the concrete at an age t0 exceeds the value

0.45 fck(t0). So far the value of concrete stress was limited to 0.45 fck(t0). This condition need not be satisfied after introducing

creep non-linearity, which increases economy of the design.

Construction stages and Time Dependent Analysis (TDA)

The changes of structural model, cross-sections or loads are modeled through construction stages. The effects of creep,

shrinkage, and ageing have significant impact on stress redistribution in time, and therefore to stress-state of cross-sections

at the moment of live load application. Those effects are calculated by IDEA StatiCa TDA module.

Page 9: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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Equivalent concrete age

Demoulding of prefabricated elements and the transfer of prestressing are usually done at the age of concrete less than

one day. Provision 3.1.2 (5) of EN 1992-1-1 code does not provide the formula for strength of concrete younger than

3 days, what virtually makes the load application impossible unless the strength is based on tests. New functionality of IDEA

StatiCa enables the input of strength of concrete based on tests and the calculation of equivalent concrete age. The time

of corresponding construction stage is modified accordingly.

Presentation of internal forces in beam results

An improvement in understandability and lucidity of presentation of internal forces acting on composite

cross-sections was introduced in beam results. Total resultant of internal force can newly be presented

both to centroid of entire or current composite section. In the case of the option of current section,

internal forces will be related to the centroid of transformed cross-section determined from currently

existing phases of cross-section and their prestressing reinforcement. Change of modulus of elasticity

due to concrete aging is considered in all phases of cross-section.

Bridge Combinations acc. EN 1991-2

The introduction of load groups and the possibility of automatic

generation of bridge combinations significantly improve the effectiveness

and speed of design process, decrease its laboriousness, and help

the designer to cope with complexity of Eurocode. Both road and railway

load groups and combinations according to EN 1991-2, table 4.4a

and 6.11 can be defined, analyzed, and evaluated. Different values

of factors Ψ0, Ψ1 for different, but simultaneously acting loads are

respected according to tables of EN 1990/A1.

Load groups for bridges

Fwk – Execution

QSn,k – Execution

Construction – Qc

Fwk – Persistent

Thermal – Tk

gr5 – Special vehicles

Fwk – Combi

gr2 – Horizontal forces

gr1a – TS

gr1a – UDL

gr3 – Pedstrian loads

gr1a – Pedstrian + cycle

gr4 – Crowd loading

gr1b – Single axle

Page 10: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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User-defined internal forces

The objective is to enable an effective way of the design of prestressed (bridge) slabs / slab and rib systems / grillages

in IDEA StatiCa.

Let us assume that bridge slab is modeled

by 2D elements in some 3D FEA system.

“Integration strips” are defined in order to

integrate 1D internal forces. Only moving loads

are defined and analyzed in 3D FEA system.

Prestressing losses and load equivalent

to the effects of prestressing are calculated.

Finite Element method in combination

with TDA analysis is used to obtain internal

forces caused by all loads except the effects

of moving loads.

The effects of moving loads are imported

into IDEA Prestressing. Load groups

for bridges, construction stages are defined

and tendons are designed.

All specialized features of IDEA StatiCa

are used – detail and comprehensive sectional

design, tendon stress check, export

of drawings into DXF, output report and bill

of material.

3D FEA software

IDEA StatiCa

IDEA StatiCa

IDEA StatiCa

Use your current FEA program and analyze prestressing and construction stages in IDEA StatiCa at the same time.

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IDEA StatiCa Prestressing

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IDEA StatiCa RCS

IDEA StatiCa RCS stands for completeness and comprehensiveness of the assessment of reinforced and prestressed concrete

sections, transparency of assumptions and results and also acts as a perfect guide to Eurocode. Sectional check can be

performed for internal forces imported from IDEA StatiCa modules for structural analysis or from various FEA programs linked

by IDEA StatiCa BIM.

EFFECTIVE AND USER FRIENDLY INTERFACEenables easy and fast input of cross-section

COMPREHENSIVE IMPLEMENTATION OF EUROCODEprovides references to code provisions, tooltips, explanations, warnings and error messages

HIGH-TECH SOLUTIONmultithreading, 64 bit application, initial state method, interaction of internal forces in the section, TDA

Stress distribution across the section

Support of technical standards

IDEA

StatiCa

EN

Switzerland

Czech Republic

Slovak Republic

Austria Poland

Belgium Holland Singapore Germany

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IDEA StatiCa Prestressing

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RCS – friendly, accurate and complete design of prestressed concrete sections.

Detailed stress response of prestressed composite section Equivalent thin-walled section for torsion check

Ultimate limit states• Stress-strain response of cross-section loaded by any combination of internal forces

• Strength in Flexure, Shear, Torsion

• Interaction of all components of internal forces (N, My, Mz, Vz, T)

• Shear resistance of sections with/without shear reinforcement, cracked/uncracked in bending

• Fatigue

• Shear in composite joint

• Both nominal curvature and nominal stiffness methods for the calculation of second order

effects

Serviceability limit states• Stress limitation,

• Crack width

• Decompression condition

• Brittle failure

Eurocode 2 method is not suitable for shear stress calculation in the joint in the case

of normal stress distributions, which are typical for concrete composite cross-section.

The method does not reflect stress redistribution in the cross-section caused

by consecutive construction, and differential creep and shrinkage of concrete of both

composite parts of cross-section.

Calculation method alternative to Eurocode 2 method was

proposed, tested, and implemented in the program.

Shear stress is calculated from difference of normal forces

acting on sectional components in two neighboring sections

of the element. Numerical studies were performed based

on real-life examples of composite beams. The method

and the results were presented on international

conferences and published in technical papers.

The history of construction and service stages influences the ultimate resistance and serviceability limit state of these

structures. Cross-sectional design according to EN and SIA codes have been adapted to comply with the fact that unequal

strains and stresses appear in two adjacent fibers of construction joint.

Page 13: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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IDEA StatiCa Frame

• Plane frame or truss of arbitrary shape

• Import of the shape from DXF

• Pre and post tensioned tendons

• Calculation of equivalent loads

• Balancing of external loads

• Design according to EN 1992-1-1, EN 1992-2, SIA 262

IDEA StatiCa Column

• Column with one or two corbels

• Free, fixed or flexible supports

• Standard or general cross-sections of any shape

• Proper analysis of 2nd order effects

• Design according to EN 1992-1-1, EN 1992-2, SIA 262

• Bill of material

• 1xA4 or more detailed output report

IDEA StatiCa CSS

• Massive, thin-walled or mixed cross-section of any shape

• Import of the shape from DXF

• More cross-section components, each of different material

• Number of openings in cross-section is not limited

• FE analysis of cross-sectional properties and stress distribution

• Unique calculation of stress caused by shear and torsion

• Graphical presentation of shear flow

• Input of design matrices representing extreme sets of internal

forces

• Analysis of normal, shear and HMH stress

Export into CAD programs

IDEA StatiCa provides export of all drawings into DXF. This feature can save a lot of engineer’s time during subsequent

manufacturing of production documentation.

IDEA StatiCa CAD program

Page 14: IDEA StatiCa prestressing

IDEA StatiCa Prestressing

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Get more information

VISITour website www.idea-rs.com to watch videos, browse through tutorials or read about our method and research team.

REQUESTa FREE trial of IDEA StatiCa Steel at [email protected].

JOINregular online events devoted to steel design organized by IDEA RS together with our local sales partners.

DROPus an email with a question or schedule a Skype call with one of our consultants.

• Working with data model from MIDAS Civil and GEN, AxisVM, SCIA Engineer, RFEM, Nexis (Esa Prima Win) and others

• Interface for data import from external FEA programs

• 1D and 2D members – beams, columns, slabs, walls

• Assigning members into design Gross

• Check of structures from different materials

• Updating model back to FEA program after proper designing of members

• Updating designed members after change in FEA program

midas Civil IDEA RCSIDEA BIM

FEA programs

IDEA StatiCa BIM

Transferring of data between different programs can be very time consuming process. IDEA StatiCa BIM reduces that work

to minimum and provides easy import of structure geometry, internal forces of all load cases, combinations and construction

stages from Midas Civil and GEN, AxisVM, Scia Engineer, RFEM, Nexis and others. Therefore IDEA StatiCa design modules

work with results calculated by other FEA programs directly.

Thanks to that engineer can design a simple beam in the same way as for example segments of the bridge constructed

by cantilever mehod.

Page 15: IDEA StatiCa prestressing

www.idea-rs.com

HOW WE ARE DIFFERENT

We believe that every structural engineering office deserves a tailor-made solution composed of programs particular engineer

really needs rather than “all-in-one” package. We try to achieve this by constant improving of:

IDEA StatiCa BIM – a “bridge” between IDEA StatiCa and other programs. It instantly transfers model of internal forces

to IDEA StatiCa where required members/details can be designed.

www.ideastatica.com - our dedicated website where engineers can use IDEA StatiCa programs as a cloud-based service.

Get online, click, calculate – it is that easy. You only need a web-browser.

ABOUT US

We develop and sell software for structural engineers/consultants, construction authorities and all others who perform/

evaluate/use structural analysis and design of constructions and their members. Our development team researches, tests

and applies new methods of structural analysis. Based on it, we create IDEA StatiCa products – enabling engineers to work

faster and more accurately, construction companies to use optimal amount of material and construction authorities/checkers

to evaluate requirements of the national code quickly and thoroughly. For us, creating top-class software is a way to contribute

to making every new construction around the world safer and cheaper.

We started developing IDEA StatiCa® in 2010. This enabled us to build it using modern program architecture and innovative

IT technologies – multi-core and 64-bit processors, object databases, graphic modelers, internet applications, cloud

computing. This represents a generation leap compared to software developed 10 or 15 years ago, no matter how many

times were they upgraded.

FUN FACTS ABOUT IDEA RS

Our company is a member of South Moravian Innovation Center (JIC), entrepreneurial incubator that was a starting point for

several successful tech companies.

IDEA RS leads research team including Czech universities in project “Advanced software for optimal design of complex

structural steel joints”. Developed CBFEM method is protected by patent.

In 2013, we were recognized as „10 High-Tech Startups in Central Europe You Should Know About“ by JIC.

During 2011 and 2012, we were the owner of the project “Interactive system for designing of constructions”, supported

by Czech government. Project materialized into our website www.ideastatica.com – the first web for cloud-based structural

analysis worldwide.

Our team, led by Lubos Sabatka

and Jaroslav Navratil, has more

than 25 years of experience in the

field. Two thirds of structures built

in the Czech Republic, Slovakia and

Benelux in last two decades were

calculated using either SW they

created in their own company (IDA)

or as development managers in

other companies (SCIA Engineer).

Page 16: IDEA StatiCa prestressing

www.idea-rs.comwww.ideastatica.com

[email protected]


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