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Video | 3skeng Steelwork Tool
Online Manual RFEM | Surfaces
With its energy-efficient house powered by solar energy, the student team of the Czech Technical University (CTU) in Prague achieved an outstanding 3rd place at the Solar Decathlon, an engineering competition organized by the U.S. Department of Energy.
Architecture, Structural Analysis, Planning & Construction
Student team of Czech Technical University (CTU)
Prague, Czech Republic
www.cvut.cz
www.airhouse.cz
Analytical model of "AIR House" in RFEM (© CTU)
Energy-Efficient Solar House
No Download Possible
Customer Project / View Only
| Number of Nodes | 548 |
| Number of Lines | 813 |
| Number of Members | 648 |
| Number of Surfaces | 19 |
| Number of Load Cases | 8 |
| Number of Load Combinations | 359 |
| Number of Result Combinations | 3 |
| Dimensions (Metric) | 13.745 x 12.035 x 4.335 m |
| Dimensions (Imperial) | 45.1 x 39.48 x 14.22 feet |
| Program Version | 5.01.00 |
Related Models
General
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In the existing standard, there were no regulations for the distribution of snow loads for elevated solar thermal and photovoltaic systems on roofs. Only distribution of the loads was advised. It was only with the National Annex DIN EN 1991-1-3/NA: 2019-04 that specific regulations were made for this.
In this article, you will learn how to model and design cable structures in RFEM 6 or RSTAB 9.
This article describes and explains the influence of bending stiffness of cables on their internal forces. Furthermore, the text provides information on how this influence can be reduced.
The ASCE 7-22 Standard [1], Sect. 12.9.1.6 specifies when P-delta effects should be considered when running a modal response spectrum analysis for seismic design. In the NBC 2020 [2], Sent. 4.1.8.3.8.c gives only a short requirement that sway effects due to the interaction of gravity loads with the deformed structure should be considered. Therefore, there may be situations where second-order effects, also known as P-delta, must be considered when carrying out a seismic analysis.
![Visualization of Solar Power Plant (© Cockerill Maintenance & Ingenierie sa [CMI])](/en/webimage/012579/568396/Solar_Plant.jpg?mw=350&hash=825e91cc569f2c58075a4794fa4a22559ca9f073)
The maximum and minimum extreme values (the envelope) are displayed in result tables and graphics. It is possible to add them to the global RSTAB printout report.
You can also design the internal forces of super combinations in many RSTAB add-on modules.
For superpositioning, it is necessary to select one of the integrated standards. The partial safety factors are preset by default. It is also possible to create a new standard and to save it with the user-defined safety factors.
The combination criterion defines which load cases, load combinations, or result combinations are to be considered by which model. The actions can be scaled by factors and classified as 'permanent' or 'potentially'. Alternative examinations in the form of a 'or' superposition are also possible. Graphic representations facilitate the allocation of the relevant models.
When determining extreme values, SUPER-RC imports the results of structures and superimposes them according to the combination criterion. The results are compared using the member and node numbers.
A basic model is created and saved under different names depending on the construction progress. These structural models are then used for the supercombination. The superpositioning can be performed in the same way as for an RSTAB result combination.
By modeling various construction or operational conditions, different geometric boundary conditions can be represented: It is possible to add or remove supports, members, or elastic foundation of the model, for example.
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- Management of RSTAB models according to construction progress
- Definition of geometric boundary conditions for individual construction and operational conditions
- Access to load cases, load combinations, and result combinations of all structures
- Superposition of the different models in the form of an envelope of all extreme values
- Combination options according to the following standards:
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Eurocode -
DIN 18800:1990-11 -
DIN 1045:1988-07
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DIN 1045-1:2008-08
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DIN 1052:1988-04
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to DIN 1055-100:2001-03
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ÖNORM - Serviceability (unscaled)
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- Tabular and graphical result display
How is it possible to consider the real cross-section geometry of member elements in RWIND Simulation?
Can I calculate a composite beam with RFEM 6?
How can I deactivate the automatic self-weight for a particular member in my model?
How can I reduce the calculation time for members with a nonlinear material model in RFEM 6 and RSTAB 9?
What is the meaning of the location_flags in the members_internal_forces class of the WebService API?
Why are the stresses of the structural analysis different from those calculated with the Stress-Strain Analysis add-on?
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