Diaphragm Calculations
Diaphragm Calculations can be performed in FEM-Design but you can also run calculations without diaphragms (if the diaphragms have not been defined in the model). Through the different types of calculations the results will be analogous with the adjusted option.
The usage of the diaphragm tool is optimal by storeys for high-rise buildings, but the diaphragm modelling tool is also useful for other engineering problems. The diaphragms could be several regions, but they must be horizontal. The shapes of the diaphragms can be arbitrary and they can be separated also on the specific storey levels. There can be more diaphragm regions on the same horizontal level, yet they will work independently from each other.
Two Diaphragm Calculation Options
There are two different options for the diaphragm calculations: Rigid Membrane and Fully Rigid. The difference between them is demonstrated by the following pictures.
Watch a Webinar about Diaphragm Calculations
Why wait? Download an automated 2 x week free trial of FEM-Design and get started today!
Calculations performed according to:
Euro Code- Belgian National Annex
- British National Annex
- Danish National Annex
- Dutch National Annex
- Estonian National Annex
- Finnish National Annex
- German National Annex
Euro Code
Belgian National Annex
British National Annex
Danish National Annex
Dutch National Annex
Estonian National Annex
Finnish National Annex
German National Annex- Hungarian National Annex
- Latvian National Annex
- Norwegian National Annex
- Polish National Annex
- Romanian National Annex
- Spanish National Annex
- Swedish National Annex
- Turkish Seismic Code
Hungarian National Annex
Latvian National Annex
Norwegian National Annex
Polish National Annex
Romanian National Annex
Spanish National Annex
Swedish National Annex
Turkish Seismic CodeLanguages supported:
- English
- Finnish
- French
- Dutch
- Hungarian
- Polish
English
FrenchFEM-Design Wiki
You can see a scientific explanation of Diaphragm Calculations in FEM-Design if you download the theory book: FEM-Design v17 Diaphragm and Plastic Theory
You can also find more details about Diaphragm Calculations on the FEM-Design Wiki if you click here.
FEM-Design Blog
Complex Made Simple – Interview with Dennis Kristensen about Simplex Beam
In this exclusive interview, Dennis Kristensen, Managing Director at Matrix/StruSoft Structural, shares insights on the development and impact of Simplex Beam, a modern beam [...]
Complex engineering challenges solved with FEM-Design for the Alfa Laval project
The Alfa Laval office building and laboratory project in Stockholm, Sweden, is a testament to the structural complexity and the power of FEM-Design in [...]
KCT2023 – 10th anniversary of the FEM-Design event for superusers
From 19-20 October 2023, in Budapest, our long-standing KCT event for FEM-Design superusers reached its 10-year milestone. Thus, KCT2023 marked 10 years of successful [...]
Bio: Mikael van de Leur is the Head of Sales at StruSoft, for the Structural Business Unit. He has been with StruSoft since 1995 and has ...show more many years hands-on experience in all our different structural software, as well as in customer relationships and sales. Mikael coordinates the Structural Sales Team and Customer experience for new customers in StruSoft’s International markets. show less
Bio: Anders Nilsen joined StruSoft in 2019 and starting of as a Sales Manager in Denmark. In 2024 Anders took on additional responsibilities as Head of ...show more Sales in Denmark, The Baltics, Hungary, Romania and Poland in the structural business unit of StruSoft. Anders has a background as a civil engineer with lots of practical experience in all our structural software. show less
Bio: Isak Björhag works as Business Development Manager for new markets. Isak has many years of experience both with hands on practical engineering and working with our ...show more customers helping them to succeed with our structural engineering software. This can be achieved through specific training, presentations or hands on demonstrations for specific cases. Please feel free to contact Isak if you are interested in a demo or want to expand your knowledge in our structural software. show less
Bio: Mohsen Ghaemi is the Regional Manager for StruSoft in our Structural Business Unit. He has a PhD in Structural Civil Engineering (Topology optimisation). Mohsen has ...show more been with StruSoft since 2002 and has more than 20 years of experience with the FEM-Design software and its development, as well as in customer relationships and sales. Please feel free to get in touch with Mohsen directly. show less
Bio: Ciprian Tibea is the Sales Manager for Baltics & Romania and has been with StruSoft since 2018. Ciprian has a PhD in Civil Engineering (Ultra ...show more High Performance Concrete Subjected to Shear Action) and a Masters Degree in Entrepreneurship and Business Administration. Prior to StruSoft, Ciprian was working as a research engineer for Consolis for 6 years and for 1 year with a local company in Romania working on structural design projects with advanced Finite Element Software (Diana and Atena). Ciprian is your main Structural Sales contact for markets outside Europe, the Baltics and Romania. Please feel free to get in touch. show less
Bio: Joni has helped and trained hundreds of engineers in structural analysis in Finland. He works in both civil and mechanical engineering fields with structural analysis. ...show more Joni has over 15 year of experience in structural design of many types and sizes of steel, concrete and timber structures. Joni is the Product Owner of our JIGI software and Country Manager for Finland. Please free to contact Joni if you need any help to solve your structural analysis problems. show less
Bio: Marek Krawczyk is the Country Manager for Poland at StruSoft. As a structural engineer, he has more than ten years of international experience, working on ...show more various projects in Europe, the UK, the USA and Asia. He joined StruSoft in 2022 to strengthen our presence in Poland and support the StruSoft software Users in the local market. show less
Bio: Jan Wróbel has over 6 years prior experience before joining StruSoft working as a structural engineer, using FEM-Design and WIN-Statik in his daily practice. His ...show more international project work has equipped him with broad technical knowledge and understanding of various design standards and client needs. He is now focusing on technical support for Polish customers. Feel free to contact Jan for any assistance with StruSoft's structural software or any other structural engineering questions! show less
Bio: Edris Mohammadi Nikzad is a Costumer Success Manager at StruSoft, based in our Stockholm’s office. He joined StruSoft in 2019 and has many years of ...show more experience on practical engineering and working with FEM-Design and WIN-Statik. Edris works closely with our customers in Sweden to help them to succeed with our structural engineering software. If you are interested in a demo of our calculation programs for a specific purpose, or if you have a special request for any training, please feel free to contact Edris. show less
Bio: Markus Mitikka is a customer coach for StruSoft in Finland. He has previous experience of FEM calculations and structural designs working for engineering office. He ...show more was a big fan of StruSoft software before joining StruSoft in beginning of 2022. Markus can help you to become more efficient with all our structural software. Please feel free to get in touch. show less
Bio: Casper Hougaard is a Customer Coach for StruSoft's Structural Team based in Denmark. He joined StruSoft in 2022 and has a background in civil engineering ...show more with lots of practical experience using FEM-Design. Casper would be happy to help any Danish FEM-Design Users with general guidance, project specific guidance and training. show less
Bio: Fredrik Lagerström MSc has 8 years prior experience before joining StruSoft working as a civil engineer using FEM-Design, WIN-Statik & PRE-Stress in his daily practice. ...show more In 2011 Fredrik joined StruSoft as a Technical Sales and Education Manager. Fredrik works closely with both Sales and Development to get feedback directly from our Swedish Customers to in turn help our Developers to implement the requested new features in an accurate way. Please feel free to get in touch with Fredrik if you require any technical help or support with our structural software. show less
Bio: Suleyman Sayed, also known as Sulo, is the branch manager for Matrix's structural engineering software products, StruSoft's sister company in The Netherlands. Currently, he primarily ...show more focuses on expanding market share and devising strategies to better position FEM-Design in the Netherlands, the Dutch Antilles, and Suriname. With his extensive background in structural engineering, deep market knowledge, and experience in various industries such as petrochemicals and civil construction, Sulo is well-equipped to offer customized solutions that perfectly meet the needs of his clients. show less
Bio: Suhas is the Managing Director of StruEngineers India, a Design & Detailing Service company 100% owned by StruSoft. Suhas has a BSc in Civil Engineering ...show more and has been providing design support services to the Precast Industry, worldwide, over the last 20 years. Suhas was one of the original founders of StruEngineers which was established 10 years ago and previously worked for Neilsoft in Pune. StruEngineers provides local support in India for all StruSoft software and Suhas is a specialist with IMPACT AutoCAD. If you are based in India and looking for more information or support please feel free to get in touch directly with Suhas. show less