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Leading engineering software provider for over 35 years

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FEM-Design | Structural Analysis and Design Software

Powerful and intuitive modeling software for structural analysis of building structures.

IMPACT | BIM Software for Precast Design & Planning

A family of advanced BIM precast software to efficiently manage, detail, produce, transport and erect concrete elements.

PRE-Stress | Design Software

PRE-Stress is an advanced software for calculations of prestressed concrete elements, including hollowcore slabs; slabs; beams; sloped beams and double tees. 

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About StruSoft
StruSoft makes life easy for building; structural design; precast concrete design and architectural engineers who work with analysis and design of buildings, structural engineering, 3D modelling, detailing, assembly etc. We provide highly specialised software in “Structural Analysis & Design” – all essential tools for the entire building industry of construction companies, engineering firms and consulting companies. We also provide a complete BIM workflow for precast concrete businesses. Our software helps our clients saving time and money by increasing the quality, efficiency and productivity when engineering buildings.

Jun 18, 2021

Get control of the foundation with FEM-Design! 

THEME: Foundation Modeling the foundation with the correct rigidity and element type can be crucial for the load distribution and stability analysis. In the Foundation Design and 3D Soil modules there are many useful and effective tools that facilitate this work! What is the difference between the two models and what are they used for? There are two main features of Foundation Design. On the one hand, the module can be used to automatically estimate rigidities on cohesion piles and foundation slabs on the ground, but there are also designing checks according to Eurocode 7. The properties of the soil is used as a starting point for both rigidity calculation using Winkler theory, but also design checks. In addition to bearing checks of the soil, there are also convenient tools to check differentials displacements between different points in a slab or other construction parts as well as check against sliding of foundations. 3D Soil is our advanced analysis tool which includes the soil strata in the analysis. Nonlinear analysis and plastic redistribution is possible to analyze in this module. This makes it the perfect tool for more advanced calculations where the soil behavior is paramount, for example foundation slabs, retaining walls and sheet piling. The analysis also produces results for the soil itself, for example, stresses and deformations. It is therefore very useful in situations where settlement calculation needs to be carried out in detail. Don´t miss our discount period for these two modules: Foundation Design and 3D Soil. Both are used together with FEM-Design 3D Structure. Please feel free to contact us if you are interested in any of these products and want a tailored presentation and trial – free of charge. Don't forget, you can always check out our videos and webinars on GoToStage  Thank you!

Jun 16, 2021

Interview with Johnny Kronvall on the latest feature release for BIM Energy

Our new feature release covers the energy calculation of even more complex buildings. Each one of these features can be quite technical and it might be hard to understand why they are important to be included in energy calculations. Therefore, we want to introduce Johnny Kronvall, our expert in the energy behavior of buildings. Johnny is a building physicist, and he has been with StruSoft for more than ten years as a senior advisor. In this role, he works with energy-related as well as general research and development matters in the company. Johnny has a long career behind in both the academy and industry. He was a consultant in WSP Sweden for ten years and has held several positions in the academic world, the latest as a professor in Building Technology at Malmö University, Sweden. We’ve asked Johnny to present each feature in this interview and how they contribute to the building modeling. Interior walls Why include interior walls in the calculation? Light-weight and heavy buildings react differently to temporary changes in thermal load, e.g. sunlight entering through windows, and other thermal peak loads such as internal heat generation from people, cooking, etc. in the house. Heavier buildings react slower to such temporary heat load fluctuations, and so the indoor temperature stays more stable. This also influences the ability of the house to keep comfortable indoor temperature conditions for a longer time if the heating delivery is interrupted. Inner walls can contribute to the thermal inertia considerably, especially if they are heavy, as is the case for concrete and masonry walls. It is time-consuming to measure the wall area manually from drawings, how can you easily add it in BIM Energy? Modern, highly insulated buildings are more sensitive to thermal peak loads, so we felt it important to include the influence of inner walls in the calculation procedure of BIM Energy. As it could be time-consuming to manually measure and input the inner wall area for the users, we also added an alternative possibility to use a standardized way to specify the inner wall area in a zone, based on if the rooms in the zone can on average be considered as small, medium, or large. Small rooms are typically seen in dwellings, while larger rooms can be large room offices or teaching rooms. This method is especially comfortable to use for calculating existing buildings when quick modeling is valuable. Outdoor air intakes Why and when to use outdoor air intake? How is it done in BIM Energy? Outdoor air intakes in the facades are used for exhaust and natural ventilation. The function of the intakes is to provide the apartment/room with an evenly distributed and comfortable supply of outdoor air. In addition, the presence of outdoor air intakes means that the underpressure can be kept at a reasonably low level indoors with exhaust ventilation. Otherwise, in an airtight exhaust ventilated building, it can be difficult to open entrance doors! The thermal discomfort due to single leakages in the facades is also pronounced with a high internal underpressure. Air intakes can be added automatically in BIM Energy when an exhaust or natural ventilation is activated. The compound material How can users determine the geometry and properties of the compound material? Modern lightweight constructions are frequently based on the use of high-performing thermal insulation placed between wooden studs. To minimize the influence of the thermal bridge related to the studs, it is common to use a system with crossing studs. Calculating the thermal behavior of these compound materials can be rather tricky. That is why we introduced a handy way to tackle this problem in BIM Energy. The user simply describes the geometry and material properties of the compound material, and the program automatically performs a 3-D thermal calculation that defines the computed equivalent thermal characteristics of the compound material. The compound material can then be used together with other materials to define a new construction item. Solar panels This is quite an important feature. How can users benefit from a simple solar panel simulation model in BIM Energy? Many, highly specialized computer programs for solar panels exist out there. Programs where you specify your solar panel facility in a very exact way, by specifying every little detail of the plant, like for example, the material and cross-section area of individual cables. What we wanted to do, was to integrate a simple and straightforward, yet validated, solar panel simulation model into BIM Energy, as a tool for accurate and evidence-based estimations rather than offering a complete design for a solar plant facility. After having entered characteristics describing the solar cells and - panels and chosen if surplus electricity should be stored locally in batteries or sold back to the electricity grid, the program specifies the impact of the solar harvesting on the energy balance of the building.

Jun 01, 2021

Customer support is important for FEM Design user Anders Hejnfelt at Sweco in Denmark

“A good collaboration where StruSoft listens to our improvement proposals is a great advantage”, says Anders Hejnfelt at technology consultant Sweco in Denmark. In this article he explains why FEM-Design is a user-friendly analysis tool and gives a clear example with the connection to Revit. What are the benefits of FEM-Design? Anders Hejnfelt at Sweco in Denmark replies directly: "It is mainly our dialogue with StruSoft, they listen to our suggestions for improvements and then develop the program with that in mind. Other users also has challenges and our collaboration becomes a way for StruSoft to improve the product and we get a stronger analysis tool." Anders is head of digitalisation and construction at Sweco in Denmark and has worked with FEM-Design for several years. Efficient process with the connection to Revit An example of the close relationship is the improvement proposals that Anders and his colleagues have made about FEM-Design's integration with Revit. They wanted to expand the exchange of information in the connection between Revit and FEM-Design so that an object in Revit gets the same name in FEM-Design. The exchange would take place in both directions according to their wishes. The design is done in two different ways. "We model directly in FEM-Design, it's intuitive and fast," says Anders. But we can also import the geometry from Revit. It depends on the project and the client." In the case of Revit, a working method has been developed. "Our goal is to design the construction in Revit as complete as possible and then import the geometry into FEM-Design for analysis. When changes come, we adjust the geometry and then update the calculation model. This way we do not have to work with both the Revit model and the calculation model, which would be to double the work." An overall purpose is to get an overview of how the forces are distributed in the construction. Therefore, it is important that the design is as good as it can be in Revit to make thorough analyses, especially in the connections between different elements of the precast structure. All in order for the building to have stability and to get control of the loads. Anders also uses the analysis tool to verify a possible solution. "There may be several proposals in an initial phase of the project to be evaluated to develop an optimal design. The information in FEM-Design can be used by Anders in other ways, such as exporting the cut forces in an analysis to work on those in another program. It shows how applicable the data in the analysis tool are." Support solves problems in a customer-friendly way When Anders and his colleagues encounter challenges and problems, FEM-Designs support is not far away. "We get quick answers, we have a lot of use for the answers and the support is really good! says Anders. I also find it easy to get in touch with the support. It is about small and large things that arise in the analysis work. The support does not give a concise answer but takes the time, reviews the problem, for example with the model we sent and comes up with a solution that we can directly use. This is a great advantage for us because we can more easily move forward in the project." Anders appreciates the good cooperation, a closeness to the user that increases productivity. This is important for Sweco in Denmark and provides opportunities to run projects more efficiently.                        By: Love Janson
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