superior solution for bridges -...

Computer Control Systems | 94-96 Kifissias Ave., 15125 Athens, Greece | +30 2108051730 | www.ccs.gr

Software for

analysis and design

of composite

road and railway

two-girder bridges

Eurocodes and

French regulations

Mixte 2I is an advanced software application for the design according to Eurocodes and French

regulations of composite road and railway two-girder bridges. It has been distributed to the

European market since 1997 (initial version had French design regulations) and has been used for

the design of hundreds of road and rail bridges.

Mixte 2I allows the analysis and design of composite two-girder bridges with multiple spans. A

linear beam model is constructed and the traffic loads are automatically determined according to

Eurocode regulations. The internal forces and stresses are then calculated and all the necessary

checks are performed. The calculations report is automatically generated.

Mixte 2I is developed and owned by Computer Control Systems S.A. (CCS).

Mixte 2I was initially developed by CCS and CTICM (Centre Technique Industriel de la Construction

Metallique) of France and incorporated a broad area of expertise in composite bridges.

Mixte 2I is the result of the high level of expertise and experience of CCS engineers in the composite

bridges domain. CCS software is being used by organizations such as the design department of the

French railways (SNCF), Design Offices, and Construction Companies such as Eiffage Métal and

Baudin Chateauneuf.

Superior solution for bridges

Eurocodes:

� Eurocode 1 - Part 2

� Eurocode 3 - Parts 1-1, 1.5, 1.9, 2

� Eurocode 4 - Part 2

French regulations:

� Fascicule 61, Titre II et Titre V

� Circulaire no 81-63

� SNCF - Livret 2.01

Built-up I section

with constant height

or with linear and parabolic taper.

Automatic generation

of section properties.

Detailed definition

of concreting schedule.

Account of slab cracking.

Automatic generation of traffic

and train loads for the design

of road or railway bridges

under service,

ultimate and fatigue limit states.

Design checks for

shear connection, welds,

stiffened web buckling

and fatigue of sections, shear

connection, and reinforcements.

Support reactions.

Superior software solutions for steel and composite structures

Hundreds of road and railway bridgeshave been designed with Bridge software suite.

CCS has an extensive experience in

the field of composite road and

railway bridges, due to the

realization of many studies of

bridges and the development by a

highly skilled team, of computer

applications for solving specific

problems for bridges, according to

Eurocodes. This particular

specialization was acquired through

regular collaborations with French

national organizations such as SNCF,

CTICM and SETRA.

CCS has developed custom software

applications for SNCF such as: PACT

(analysis of the dynamic behavior of

a bridge when high velocity trains

pass over it), RaBPMx (analysis,

design and automatic drawing

production of composite railway

two-girder bridges) PIVOT

(calculation of interaction between

rail track and bridge under the

acceleration or deceleration of high

velocity trains).

Bridge Software Suite

Analysis and design

of composite road and railway

two-girder bridges

Eurocodes and French regulations

Analysis and design of composite

road and railway box bridges

Eurocodes

Pre-design of composite

road and railway bridges

at conception phase

Eurocodes

Dynamic and fatigue analysis

of railway bridges

Eurocodes

Expertise and Innovation

Verifications of composite

road and railway bridges

Eurocodes

Eurocodes:

� Automatic calculation of effective widths at

all positions.

� Automatic calculation of equivalent factors

according to the load type and the

concreting day.

� Automatic creation of reglementary loads

and combinations (SLS, ULS).

� Global analysis considering the concrete

cracking.

� Sections classification and reduced section

characteristics.

� SLS and ULS design checks of the

composite section taking into account the

concrete cracking and the moment-

stresses redistribution.

� Fatigue verifications.

� Verification of the web panel stability and

stiffeners (horizontal and vertical).

� Calculation and verification of the shear

connectors.

� Verification of the welds.

� Eigen values calculation of the composite

beam.

� Influence lines.

� Calculation of precamber and reactions.


French regulations:

A module for the application of French

regulations, based on Fascicule 6, Titre II and

Titre V, Circulaire 81-63, SNCF-Livret 2.01, is

available.

Software for analysis and design of compositeroad and railway two-girder bridges

General:

� Mixte 2I uses a beam element model for

the simulation of the bridge structure.

� The analysis is based on the longitudinal

bending (displacements of the axis of the

bridge) for one of two cross section beams

(the most unfavorable).

� Issues related to the cross section of the

bridge are automatically handled (partition

of loads for the two girders).

� Interface: English, French.

Structural data:

An efficient graphical user interface is used

for the basic data input as described below:

� Structure topology definition (geometry)

for automatic node generation of the

linear beam model.

� Material mechanical properties definition.

� Sections geometrical characteristics

definition for I shaped built-up sections

with automatic calculation of their

mechanical characteristics for all stages.

� Tapered sections with linear and parabolic

height variation are also included as well

as selection among standard catalogue

profiles.

� Detailed concreting phases definition.

� Definition of traffic and train loads.

� Automatic generation of load

combinations and envelops.


Superior software solutions for steel and composite structures


Computer Control Systems S.A. (CCS) was established in 1987 in Athens. Greece. Its initial legal form was Ltd and in 1992 it was

reformed to S.A. (shareholding company). Our main business is the production of software and the provision of services. The

extensive expertise in the sectors we operate, combined with highly skilled scientific and technical personnel and consistent after-

sales support, ensure customer satisfaction and long-term collaboration.

CCS has a strong commitment for quality in the design, development and support of its products and is certified with ISO 9001 since

1999 for “Design / Development Installation and support of Information Technology products and solutions and elaboration of

applied mechanics studies”.

The Engineering Division of CCS is unique for its commitment in serving the steel industry and has gained an excellent reputation

for the high level of expertise, the innovation in software, and the quality of services and engineering studies. Hundreds of structural

engineers, design offices, contractors, steel suppliers and fabricators have chosen to rely on our services in order to achieve superior

productivity and competitiveness.

superior solution for bridges -...

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