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Home Support & Learning Learning Videos FAQ 003242 | In RF‑CONCRETE Columns, I get a design ratio > 1 for the fire resistance design. How can the design be fulfilled in the add-on module?
FAQ 003242 | In RF‑CONCRETE Columns, I get a design ratio > 1 for the fire resistance design. How can the design be fulfilled in the add-on module?
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In RF‑CONCRETE Columns, I get a design ratio > 1 for the fire resistance design. How can the design be fulfilled in the add-on module?Answer
The add-on module determines the required reinforcement for the ultimate limit state. The fire resistance design is performed as design based on the determined reinforcement. The reinforcement will not be increased in this process. If the design is not fulfilled, you can either define a higher reinforcement manually or adjust the concrete cover to prevent the applied reinforcement from being damaged too much by the effects of fire.Keywords
Dlubal FAQ Fire resistance Fire protection design Fire resistance design Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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Frequently Asked Questions (FAQ)
- The RF‑CONCRETE Columns add-on module cannot determine any sufficient reinforcement. However, the columns can be easily designed in a comparative calculation. Can you help us?
- I perform fire resistance design in RF‑/CONCRETE Columns. Which source does the design formula according to Section 5.8.8 refer to?
- Why do I get the message 28) in RF‑CONCRETE Members, saying that I have to make a "calculation without second order effect" with the internal forces according to the gemetrically linear analysis?
- I cannot find DIN 1045 in the add‑on module for concrete, but I need it for an existing building. What can I do?
- In RF‑CONCRETE Columns, I get a design ratio > 1 for the fire resistance design. How can the design be fulfilled in the add-on module?
- Is it possible to use your own materials in RSTAB or RFEM in the add-on module "Concrete - Reinforced concrete design"?
- How are the signs for the release results of a line release and line hinges interpreted?
- How can I create a curved or arched section?
- Is it possible to manually specify a longitudinal reinforcement for design in RF‑PUNCH Pro?
- Can I simulate the cracked state of a concrete cross -section for a bending beam with the "Isotropic Nonlinear Elastic 1D" material model?
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