PontiEC4

Software for the design of steel-concrete composite decks

Supply, Support and Collaboration

PontiEC4

Software for the design of steel-concrete composite decks that can be used with any finite element solver, the design stresses for each construction phase must be provided in a format compatible with Excel©, a wizard for exporting stresses in the format required by PontiEC4 is available in LUSAS . In addition to the supply and the support of PontiEC4, Alhambra srl can provide other types of partnership according to your needs in the design of steel-concrete composite decks.

We do the project together:

– Supply and assistance of PontiEC4 and partnership in the development of the project

We do the project:

– Drafting of the project by Alhambra srl with or without graphics

All modalities have been successfully tested.

More Information

Data Sheet

About PontiEC4

PontiEC4 carries out comprehensive calculations for multiple sections on steel or steel/composite bridge decks to the Eurocodes, allowing otherwise time-consuming and error-prone manual design calculations to be carried out efficiently.

  • Perform rapid design calculations covering ULS bending, stress, shear and interaction; SLS stress, web breathing and fatigue checks for main members and connectors.
  • Consider multiple sections with different properties (haunches, stiffeners, etc), and also bolted connections.
  • Output results in tabbed dialogs that visually show values that pass or fail.
  • Easily create graphs and a report containing all input data and output with references to the Eurocode clauses.

Core Characteristics

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Material definition

Material definition

The properties of concrete and steel are defined in a dialog, complete of archives from Code of practice. Additional dialogs support the user in defining the main data, such as the equivalent damage factors for fatigue checks, the short and long-term modular ratios, the imposed shrinkage strain of the concrete.
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Damage equivalent factor
Lambda 1

Damage equivalent factor
Lambda 1

The equivalent fatigue damage factors are calculated with the support of dialogs that summarize the parameters and schemes provided by Eurocodes.
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DAMAGE EQUIVALENT FACTOR
LAMBDA 2

DAMAGE EQUIVALENT FACTOR
LAMBDA 2

It is possible to define the volume and the category of traffic by choosing the data directly from the Eurocodes tables or by customized data.
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Shear leg of concrete and steel flanges

Shear leg of concrete and steel flanges

The effective width of the slab and the flanges is calculated starting from the length of spans, and automatically applied to all the cross sections to check.
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Section definition

Section definition

The geometric data input is managed by "segments", each of which can contain any number of sections; segments with a skew web, variable height and the presence of longitudinal stiffeners both on the web and on the flanges can be managed. The sections are organized in a tree structure for better access to data.
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Forces and Moments

Forces and Moments

The forces and moments must be entered in the input tables. For each combination there are four sets of stresses, in which the effects of bending and shear are maximized and minimized. The forces and moments are also organized by construction phases and can be easily imported from an Excel file.
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results

Results

Detailed results that allow the user to easily understand and check all the calculations made, and the outcome of the checks. A dedicated tab is available for each type of verification, where are reported the details of the calculation for selected Section and Design Combination.
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Results Summary

Results Summary

Four tables show the result of all checks in a single screen. By clicking on the column header you can sort the utilization ratio in descending order, highlighting any unsatisfied checks in the foreground, with a coefficient greater than 1 in red.
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Graph Wizard

Graph Wizard

All the results (utilization ratios, stresses in the structural components, effective width of the slabs, shear flows, etc.) can be viewed through graphs drawn along the longitudinal development of the beams..
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Crack checking

Crack checking

The crack checks of the slab for longitudinal normal stresses are carried out with the indirect method in accordance with EN 1994-2 7.4 (3)
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Bolted connections

Bolted connections

A wide range of bolted joint types is available, with trapezoid or rectangular plates, and normal or quincunx bolt arrangement. PontiEC4 returns the checks of all the components (profile, plates, bolts) in the Ultimate, Operational and Fatigue Limit States, as well as a graphic representation available on screen and in dxf format.
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Report

Report

Automatic reports can be drawn up in rtf format by selecting the calculation sections deemed most significant and the desired verification chapters. By means of an algorithm it is possible to automatically identify the checks whose use coefficient exceeds a certain reference threshold defined by the user. Reports are available for all verifications, including bolted joints and short- and long-term mechanical properties of concrete.
Design calculations and results output
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A multi-tabbed results dialog gives access to the results for each of the design checks made for each deck section.

    Automated ULS, SLS, fatigue and other calculations 

    Results

  • Section properties
  • Primary (isostatic) effects of shrinkage and temperature change
  • Creep and shrinkage coefficients (EN 1992-1-1, App B)
  • Classification of sections (EN 1993-1-1, Table 5.2)
  • Ultimate bending check for Class 1 & 2 sections (EN 1993-1-1, 6.2.5)
  • Stress checks for Class 3 and Class 4 sections (EN 1993-1-5, Section 4)
  • Ultimate shear and web buckling (EN 1993-1-5, Section 5)
  • Bending-shear interaction (EN 1993-1-5, Section 7)
  • SLS stress checks (EN 1994-2, 7.2.2 (5) and EN1993-2, 7.3)
  • SLS web breathing check (EN1993-2, 7.4)
  • Reinforced concrete crack checks (EN 1994-2, 7.4.2)
  • ULS, SLS and fatigue checks for connectors (EN 1994-2, 6.6 and 6.8)
  • ULS, SLS bolted connections (EN 1993-1-8)
  • Fatigue checks for both structural steel and reinforcement components (EN 1993-1-9, EN 1994-2, EN 1993-2)
  • Transverse and longitudinal stiffener checks (EN 1993-1-5, 9.2.1 and 9.3.3)

Section Optimisation

Section optimisation can be carried out by editing the geometry/material data and then viewing how the changes have affected the results. If required, the revised properties can be re-exported to Finite Element software to carry out a final iteration and check.

Bridge types analysable

Case Studies