Elastic Surface Foundation with High Spring Constant
Answer
The direct input of a spring constant of the surface foundation is possible with a maximum of 2*108 kN/m3.
However, you can edit the stiffnesses of your surface supports in your load cases or even load combinations. If you multiply the value of the spring constant by a factor of 5, you can also see a stiffer support in the results.
Pay attention to the control of the stiffness modification, as explained in FAQ 4212.
Keywords
Increase surface foundation Multiply surface foundation High value
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Timber Beam-Column Design per NDS 2018 Using RF-/TIMBER AWC Module
In this article, the adequacy of a 2x4 dimension lumber subject to combined bi-axial bending and axial compression is verified using RF-/TIMBER AWC add-on module. The beam-column properties and loading are based on example E1.8 of AWC Structural Wood Design Examples 2015/2018.
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- Is it possible to switch off the minimum internal forces when displaying a result diagram so that only the maximum values are displayed?
- I do not want to design a cross-section in the RF‑/STEEL EC3 add-on module. Can I quickly remove this cross-section from the selection?
- I would like to define a line support with ineffective tension and apply the tension force on this line using a nodal support instead. Why does the line support still receive a tension force?
- How can I display the internal forces in the global coordinate system and not in the principal coordinate system of the cross-section?
- I am designing a set of members using the equivalent member method in RF‑/STEEL EC3, but the calculation fails. The system is unstable, delivering the message "Non-designable - ER055) Zero value of the critical moment on the segment".What could be the reason?
- Does the program check the lap length of the vertical stirrups of a block foundation with smooth bucket sides?
- A single-span beam consisting of several apparently straight members receives small torsional moments in the load case of "dead load". Why?
- When comparing RF‑CONCRETE Columns with another design software, I get different results. How can the differences be explained?
- I want to create a mapped mesh for a circular hole plate. Is it possible to generate such a mesh in RFEM?
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The design criterion for VEd/VRd,c is displayed as governing, although there should be a shear reinforcement designed. Also, the design of VEd/VRds is missing. Why?
