Copyright 2020 - DIACLASE - Consultores de Engenharia, Geologia e Ambiente Lda.
 
FAQ's
 
General
 
Q1: Is DIACalc® compatible with Microsoft Windows 10?
A1: Yes. DIACalc® is fully compatible with all versions of Microsoft Windows since XP (32 and 64 bits).
 
Q2: Does the use of the software require an internet connection?
A2: Only for the license request, when installing the software.
 
Q3: Is it required to turn off the antivirus during the installation of DIACalc®?
A3: Not always, depends on the antivirus. However, it is always recommended to add DIACalc® to the antivirus white list.
 
Q4: Is it possible to use 1 software license for more than 1 user?
A4: Yes, it is possible. However, the software must be installed only on one computer.
 
Academic licenses
 
Q1: What are the Academic Licenses limitations?
A1: An Academic License has the following limitations:
     1) Dramix database is not available (SFRC is defined by fR,k values only);
     2) Output results cannot be printed;
     3) Only basic crack control results are presented (intermediate values are not accessible).
    
Software Upgrades
 
Q1: What are the costs of software upgrades for the purchased version of DIACalc®
A1: Software upgrades will be available on the website without any additional costs for the purchased version of DIACalc®. For example, if version v3.2 was purchased, all released versions v3.x can be downloaded for free from the website - this is not valid for new major versions, e.g. v4.x, v5.x, etc. 
 
Q2: What are the costs of software upgrades for new major versions of DIACalc®
A2: Software upgrades can be purchased for new major versions of DIACalc® - upgrade prices will be provided on request (taking into consideration the previously purchased version).
    
Technical Support
        
Q1: What does Technical Support include?
A1: Technical support is meant to answer questions related to the use of the software. It is not applicable for solving engineering problems, theoretical questions or project situations.
 
Q2: What are the costs of Technical Support?
A2: Technical support will be available without any costs for the period of 90 days from the date of purchase of a new license. Thereafter, customers without a Maintenance Agreement will receive limited and non-priority support.
 
Design
 
Q1: What kind of structures can be calculated with DIACalc®?
A1: DIACalc was developed for analysis and design of concrete structures, including the following possible structural combinations:
     1) Plain concrete structures; 
     2) Concrete structures reinforced with conventional rebars; 
     3) Concrete structures reinforced with steel fibres; 
     4) Concrete structures with combined reinforcement (rebars + steel fibres). 
 
Q2: What kind of verifications can be performed using DIACalc®?
A2: DIACalc® is an integrated software, intended to perform complete engineering analysis regarding the following verifications (ULS and SLS):
     1) Bending (with or without axial force);
     2) Shear;
     3) Punching shear;
     4) Crack control.
 
Q3: What are the standards DIACalc® was developed in accordance with?
A3: DIACalc® was developed in accordance with Eurocode 2 and the German standard DAfStb Stahlfaserbeton.
 
Q4: Is it possible to calculate internal forces using DIACalc®?
A4: Internal forces are input values that need to be calculated outside DIACalc®, depending on the type of structure that is being analysed (tunnels, canals, earth retaining walls, slopes, pavements, etc).
      However, DIACalc® can be used to evaluate internal forces for slabs on ground, using a classical Beam on Elastic Foundation model, based on the Winkler solution (single load analysis, applied at the center of the slab). 
 
Steel fibre reinforced concrete (SFRC)
 
Q1: Is it possible to calculate SFRC solutions combined with conventional steel rebars?
A1: Yes. In fact, combined solutions are the most interesting in many cases from a technical and economic point of view.
 
Q2: Is it possible to calculate shrinkage using DIACalc®?
A2: Yes, it is possible. However, as the section is considered to be in a pure tension state, rebars are required on top and bottom of the concrete section.  
 
Q3: Is it possible to calculate SFRC solutions without conventional steel rebars?
A3: Yes, but not always. It is very important to understand the SFRC behaviour, due to specific limitations that must be taken into consideration.  
 
Q4: Is it possible to calculate synthetic fibre reinforced concrete using DIACalc®
A4: Not with DIACalc®. Steel fibres only.  
 
Q5: Is it possible to use any type of steel fibres in DIACalc®
A5: Yes. Steel fibres can be defined using residual flexural tensile strength (fR,1k … fR,4k) as input values, which allows the user to calculate SFRC solutions with any kind of steel fibre. 
 
Q6: Who provided the Dramix® database values included in DIACalc®
A6: The Dramix® database values were provided by Bekaert. These values rely on results obtained from material characterisation through empirical testing. 
 
Q7: Is it necessary to use a stronger concrete for SFRC structures?
A7: The concrete class must be in accordance with the fibre characteristics, in order to achieve an adequate performance of the solution. As an example, 5D fibres require a good concrete resistance.
 
Q8: Is it sufficient to use a stronger concrete for SFRC structures?
A8: No. An adequate concrete mix specification is crucial.
 
Q9: Is it possible to take the fibre orientation into consideration in DIACalc®?
A9: Yes. A specific parameter is available in the software to define the fibre orientation, according to DAfStb Stahlfaserbeton.