PREF

Software di calcolo per travi c.a. e c.a.p. THE FASTER IN THE WORLD PROGRAMS FOR CALCULATION, DRAWING AND ESTIMATION OF PRESTRESSED AND REINFORCED CONCRETE BEAMS OF ANY SHAPE

AVAILABLE IN ENGLISH, SPANISH, ITALIAN. OTHER LANGUAGES UPON REQUEST

Always updated to the new rules: Calculations according to Eurocodice 2 UNI EN 1992-1-1 : 2005 and NTC 17-01-2018 or D.M.14–January–2008.

Output of tables of the shearing and bending stress along the length of beam, exhaustive or brief calculation reports, your own choice. Calculation steps explaned in the manuals with real examples. Output with the most important value evidenced for a fast and easy check. Values out of limits are highlighted.

THE PROGRAM IS COMPOSED BY MODULES: CHOOSE YOUR PREFERRED MODULES TO MAKE THE BEST PREF PACKAGE FOR YOUR SPECIFIC NEEDS

Software features

  • Calulations according to the new rules, always
  • Check and design of beams of any shape
  • User friendly input and fast results
  • Complete results, highlighted and easy to check
  • Workingshop drawings with bills and parametric reinforcement
  • Technical support and updates included
  • Can be used by proposal department
  • Custom programs tailored for you

Modules

The program verifies and checks iteratively prestressed pre and post tensed beams and reinforced concrete beams of any sections according to Eurocode 2 UNI EN 1992-1-1 : 2005 and Italian NTC2018.

The verification is made in a series of sections with constant step along the whole beam length + the first prestressed section + the most stressed section for bending + the last prestressed section.

The beam can have CAST IN PLACE and POINT LOADS.

User can input piece of rebars in any point of the beams

The program will also verify the transitional phases: the draft, lifting, lifting / transport after a storage period

In each section the programs checks main traction and compression sigmas on the centre of gravity and shows the minimum distance where the stirrups should be placed.  Superior and inferior reinforcement is always calculated, to absorb the tractions as requested from Regulations.

AUTOMATIC PROJECT OF THE NEEDED STRANDS (for prestressed beams) The program designs the minimum needed strands FOR BREACKING VERIFICATION

AUTOMATIC DESIGN OF THE REBARS (for reinforced concrete beams): The program automatically designs the needed rebars as for breaking verification. Anyway all the others check are done in the various phases. After the calculation, or after the design of rebars, user gets automatically the beam scheme with calculation results.

AUTOMATIC PROJECT OF THE NEEDED REBARS AND STIRRUPS FOR SHEAR AND TORSION

There is the possibility to calculate any section chosen from the user, with the control of main tau and sigma of traction on the whole height of the section.

LOCAL VERIFICATION (Check of the load on a projecting tooth + Check of tooth and suspension + Check suspension only) – For Constant H Beams

SHEAR VERIFICATION in the not-prestressed section on support, following the method “variable strut inclination method”

Display of Constraint reactions Rare and Ultimate left and right (also shown in the calculation report).

Editing of a database of the most used roof elements for the automatic calculation of G1, so that the user doesn’t need to look through weight tables each time

Input of loads on beam using  m2 or m, user choice

USE DIAGRAMS research of the span-capacities diagram, given a certain reinforcement

ANY TYPE OF CROSS-SECTION Input by points, trapeziums, by DXF, automatic parametric sections or we can input your personal mould for customized beams

Automatic calculation of all the geometrical characteristics

VERIFICATION OF OVERHANG SUPPORT

VERIFICATION IN PARTIAL PRESTRESS

Moments and shear graphs

Crane: automatic input of the forces due to cranes (up to 4). The program calculates automatically moments and shares after the needed checks

SEISMIC VERIFICATION

Verification of GERBER SUPPORT

FIRE VERIFICATION (optional module)

SNOW-WIND LOADS for each Italian location for any load situation.

USE DIAGRAMS research of the span-capacities diagram, given a certain reinforcement

Reports and tables can be exported as: DOC, RTF, PDF, HTML

Fast check or results with highlight of eventual values over the limits of the Rules, any values NOT verified are indicated in red, while the values shown in blue are the values within the limits

Graph of the minimal needed area of stirrups along the whole beam

Easy and graphic management of strands, rebars and sheaths.

For users that works for more companies, it is possible to save all the default data and the parameters depending on the Company in "Criterions", so that it is easier and fast to switch from a job to another without worring about all settings. For example., it is possible to save any number of lifting ans transportation schemas.

It is possible to switch from one section to another for the verification in a few seconds and immediately see if it is satisfied or not.

Handy starting menu

Settings of defaults data can fasten the inputs of the most used configurations of beams

SCHEME OF THE BEAM: in every moment current section, cast in place if present, rebars, pre+post tensed strands and calculation results are displayed to always keep the situation under control.

The program automatically generates the WORKINGSHOP DRAWINGS with the bill of materials, according to the results of the checks

Lots of parametric rebars and stirrups

FREE ADD-INS FOR ALL PROGRAMS engineers can easily and quickly make daily calculations

  • CALCULATION OF THE REBARS AREAS (for one or more rebars, to add them and to calculate the rebar area/m)
  • TABLE OF REBAR AREAS
  • TABLE OF STRAND AREAS
  • UNIT OF MEASURE CONVERSION
  • SEISMIC PARAMETERS
  • SNOW-WIND LOADS for each Italian location for any load situation.

SO FAST IT CAN BE USED ALSO IN THE QUOTING STEP

Lots of enhancements are made according to customer request

Available Languages : Italian, English, Spanish

TECHNICAL SUPPORT ALWAYS INCLUDED IN THE PROGRAM PACKAGE

HELPFULNESS AND FLEXIBILITY

Eiseko Computers provides technical support together with programs, because each single customer has the right to reach immediately all the answers to any question, from a simple information to a solution for a calculation or a technical problem.

People who develop software, both engineers and software experts, are available for our customers for trouble fixing, explanation of procedures, information or tips: how to better use the software, which Rules are used and how, why you get a particular result, but also support for installation or updates.

Supported languages: Italian, English, Spanish.

SOFTWARE ENHANCEMENS BY USER REQUEST any request made by the users has a fast track for the developing of our software

assistenza eiseko

 

Seismic verification included in each Eiseko's program

Verification according to NTC 17/01/2018 and D.M. 14/01/2008

  • Graphic visualization on the map of the seismic locations according to the New Seismic Classification  
  • Automatic latitude, longitude and needed coefficients once the user choses  the location
  • Automatic calculation of the Seismic Dangerousness of the location
  • Seismic Analysis with Project Spectrum calculation,  for each limit condition (Limit State of operation, Damage limit state, Limit state of collapse prevention, Life  limit state)

SEISMIC MAP:

MAPPA SISMICA italia

FORM FOR THE SEISMIC VERIFICATION:

sisma

relazione calcolo sismico

relazione stato limite danno

 

relazione stato limite danno-vita

relazione stato limite vita

 

 

FREE ADD-INS in ALL PROGRAMS
engineers can easily and quickly make daily calculations

SNOW-WIND LOADS for each Italian location for any load situation

CARICHI NEVE - VENTO

CARICHI NEVE - VENTO

UNIT OF MEASURE CONVERSION

conversione unità di misura

SEISMIC PARAMETERS

 Assessment of seismic hazard: input the name of the location and the program automatically finds latitude and longitude and the seismic parameters of the indicated site

PARAMETRI SISMICI

TABLE OF REBAR AREA

TABELLA AREA FERRI

TABLE OF STRANDS AREA

TABELLA AREA TREFOLI

CALCULATION OF THE REBAR AREAS
To calculate the area of one or more rebars, sum them and calculate the area of rebars/m (
in cm2 o cm2/m ). Weight calculation of the rebars.

CALCOLO AREE FERRI

CALCULATION OF THE GERBER SUPPORT

CALCOLO DELLA SELLA GERBER

 

 

The PREF package is sold with a new system: rather than buying a single module (prestressed beams, vibrated beams, hollowcores, etc) or a single update, we offer the use of all the programs with a Subscription with a little annual fee.

With this contract you have a right to all the updates and new releases of all the programs and to the technical support.

More set of subscriptions available: with or without fire verification add-in, with a little number of main programs up to the full set.
CONTACT US FOR A FREE CUSTOM QUOTE

PACKAGE ALWAYS INCLUDES TECHNICAL SUPPORT AND PROGRAMS UPDATE.

  •  Updates from our website of all the programs under subscription
  •  Support via internet remote connection
  •  Support via Email
  •  Support via Skype
  •  Support by phone and in our offices
  •  Possibility to ask for new functionality and enhancements

 

EISEKO COMPUTERS' PROGRAMS

  • Constant H prestressed beam with pre-tensed  and post- tensed strands
  • Variable H prestressed beam
  • HOLLOWCORES 
  • Prestressed R, L, Reverse T beam, T beam, I beam and PREDALLES with Torsion and Gerber support, CRANE  and DRAWING
  • Constant H REINFORCED CONCRETE BEAM
  • Variable H REINFORCED CONCRETE BEAM


PREF-FAST:  CUSTOM PROGRAMS WITH DESIGN, CHECK AND DRAWING OF ANY KIND OF ELEMENT with ANY KIND OF SLOPE.

  • Boomerang
  • Shed (ASYMMETRIC BEAMS)
  • Double Tees
  • Inverted Double Tees
  • WINGSPANS
  • Generic covering beams Y, H…
  • Beams with non linear slope
  • Eaves
  • Double slope prestressed beams
  • Double slope reinforced conc. beams
  • Slabs
  • Floors

Other programs on demand

 

assistenza eiseko

Il programma PREF è una suite di moduli per il calcolo delle travi precompresse che viene distribuita in abbonamento annuale. L'abbonamento può essere personalizzato e include l'uso dei programmi, l'assistenza tecnica e tutti gli aggiornamenti che verranno prodotti.

I programmi hanno protezione hardware USB.

In alto a destra in questo sito, cliccare su LOGIN, accedere con le credenziali fornite (oppure richiederle all'assistenza - non è possibile crearle), andare nel menù Download-Aggiornamenti.

Appare l'elenco degli aggiornamenti disponibili.

Non è necessario scaricare le librerie, gli aggiornamenti le includono, servono solo per casi di assitenza.

The broken dongle is replaced. Contact us to organize the return and for all the details (usually a new dongle is sent and the broken dongle is collected by the courrier at delivery).

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