Novità di IDEA Statica 7.0
Release note IDEA Statica 7.0
IDEA Statica Steel
Version 7 is the next chapter in reinventing steel connection design. It comes one year after the previous version 6 and brings many new features and improvements. Majority of them were inspired by our users, resellers and partners.
- Stiffness and deformation capacity
- Base plates, anchors
- Stiffening members
- General contacts between plates
- SAP2000 - new FEA link
- Model of welds
- Tekla/ Advance steel links
- Report – one line content
- Dxf pictures
- Loads – export to Excel
- Simplifications – setups, ribbons, report
Stiffness and deformation capacity
- Level of design load
- Limit value of capacity of conncetion for 5% equivalent strain
- Limit valure of capacity of connected member (useful also for seismic design)
- 2/3 of limit capacity for calculation of initial stiffness
- Value of initial stiffness
- Limits for the classification of conncetion - rigid and pinned
Base plate, anchoring
V7 offers the option to input different offsets of concrete block on different edges of steel base plate. Offsets influence the calculation of the size of break-out cones.
End of anchors are frequently modified to increase the cohesion and make break-out cone bigger. However in checks it is involved only in the size of break-out cone. User can define washers of specific size to make break-out cone bigger. Washer can be rectangular or circular, but both have the same influence to the size of cone.
Users of IDEA StatiCa Connection can reinforce steel joints with additional plates – stiffeners, ribs, doublers. Segments of hot rolled or cold formed profiles can be used for stiffening in version 7. These stiffening members behave in the joint the same way as basic steel members – all manufacturing operations can be applied on them. Stiffening members cannot take loads. They are not a part of 3D global model of the structure.
General contacts between plates
Steel connection is modelled like a system of plates (members are composed from plates), welds, bolts and contacts. Contacts appear in places where two plates are in touch. They take 100% of the pressure but do not act in tension at all. Contacts are automatically generated in between plates which are a part of bolted connection. Version 7 brings an option to define the contact between any 2 surfaces of plates even if they are not bolted together. A lot of practical technical tasks can be resolved thanks to this new feature.
Link with SAP 2000
SAP2000 is widely-used FEA structural software. IDEA StatiCa 7.0 can read all necessary data for design of steel joints from SAP2000 3D models. IDEA StatiCa can read the whole SAP2000 project or only its part. For IDEA StatiCa Connection there is a simplified direct workflow – just select a node in SAP2000, click on a “IDEA Connection” plug-in and design the joint.
Model of welds
Import from Tekla Structures and Advance Steel
- Notches – it is possible for both plates of members and stiffening plates. Not for general 3D solid. Welds have to be added in Connection.
- Openings – we can read all openings in stiffening plates. Not yet in plates of members.
- Stubs – we can read cuts on both ends, thanks to development of stiffening members.
- Weld “all around”
- Bended plates
- Cuts by CHS – everything is imported, cuts “by surface” have to added manually
- Anchoring– partially improved, base plate still has to be added in Connection
Output report has key value for the user so we improved its quality in version 7 – style of tables, labels. There is also direct export into MS word – program generates MHT file. We rearranged the “one line” output. There is more useful information which make the output more valuable. It works both for stress/strain and stiffness analysis.
There is a new export of drawings into DXF format in Bill of material. Drawings can be opened directly in Autocad.
Pictures from bill of material into DXF
Loads – export into Excel file
New function can be used for copying of load cases between items in the project or between different projects.
One more cross-section type was added. Angle profile with the possibility to define the angle. It can be applied for stiffening member and used for modelling of bended plates.
Quite complex settings dialog for detailed report is briefer now. We defined compulsory content of the report and user can play only with limited number of options.
IDEA StatiCa Concrete
IDEA StatiCa Concrete and Prestressing
Bridge load rating is the calculation to determine the safe live load carrying capacity of the bridge. Due to the facts that load schemes usually differ from traffic loads defined in design codes and materials possibly suffer from the deterioration, different partial safety factors of materials and loads and different combination factors are used.
A load rating benchmark example was performed on a simply supported KA61 prestressed concrete side-by-side box-beam bridge with a span length equal to 12m and with the cross section shown above.
In-plane restraint of out-of-plane flexure
With the new version we prevent the deformation of assimetrical cross section due to rotation to its principal axis. Infact this would form out-of-plane flexure (displacement in the direction of local Y axis and rotation about X and Z axes).
Deformation of the beam due to the self-weight in stage Storage yard (Supports at the ends).
Deformation in stage Final supports due to uniform load -10kN/m
- Only deformation uz
- Deformation uy and rotation jx is fixed
Settings in Construction stages in RCS mirror the settings in the Beam module.
The effects of extreme internal forces calculated in stage Storage yard:
- o 3D bending
- o rotation rx is jz are not zero
Out-of-plane flexure is prevented starting from this construction stage. Therefore the assessments of cross-section disregard any increments of moment Mz, which appear since that construction stage. Of course that total effects can result in out-of-plane flexure, which appeared in the increments before in-plane restraint was applied.
- o 3D bending
- o increment of jz is zero
The total relaxation of prestressing steel at infinite time and the development of the relaxation loss over time have often been provided by the producer of the prestressing reinforcement in the form of what is called relaxation tables. And we had always worked with relaxation tables in our professional life before Eurocode introduced a formula instead. It seemed to be a big progress – easy programing, easy work. The problem is that the formula does not fit the real behaviour of prestressing reinforcement manufactured by different producers. That is also why the use of that simple formula is not allowed in Germany. And that is why we introduced user-defined relaxation tables into IDEA StatiCa version 7.
Generator of bridge combinations in BIM
Liquid retaining and containment structures - improvements
The check of cracks according to EN 1992-3 is improved so that the program determines automatically if the depths of concrete compression zone from opposite sides overlap each other or not. This happens in the case that the cross-section is loaded from both sides (alternately for different combinations).
RCS - possibility to check one extreme of the section only
Stiffness - improvements
New possibilities to calculate the stiffness and curvatures of prestressed cross-sections was introduced in version 7- Both short-term and long-term stiffness can be calculated. Curvatures caused by the shrinkage can also be calculated.
Link to SAP 2000
Simplified UI of RCS
New user interface is optimized to be more intuitive and simple. The Navigator bar was reduced to provide basic program function and the Checks are accessible via Result command.