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Can I calculate a log house spatially three-dimensionally with RFEM?


For many users, the almost realistic display of a building in construction programs arouses the wish to carry out the structural analysis of a building with the same complex spatial model.

Again and again, the design of log cabins is approached to us. Unfortunately, this beautiful construction method is relatively complex for a three-dimensional analysis. The dimensioning results in some critical questions that can not be answered.

  1. Which sort class is the timber subject to? In block building, damp unsorted timber is often used.
  2. How is the contact between the woods sorted? Diamond notch, bond with moving woods etc.?
  3. Are setting timbers installed? Which type of timber and how are they horizontally supported?
  4. Which dimensions does the timber have? In block construction, the grown trunk is often installed. These strains do not have uniform dimensions because nature can not be put into a grid.
  5. How is it possible to consider the contact between two layers of timber?
Furthermore, because of their high settlement of more than 15 cm per story, block houses are usual for houses with a maximum of 2 full floors. Thus, the occurring forces are within a manageable framework and can be determined sufficiently precisely with the methods of the member statics in 2D structures. RFEM / RSTAB provides the option to use a Vultivated Round Rod. Thus, the definition of 2D equivalent systems can be done much faster in RFEM / RSTAB.

There is some information in the given literature source.


Spatial Logs Round root Evaluated


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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RSTAB Timber Structures
TIMBER Pro 8.xx

Add-on Module

Timber design according to Eurocode 5, SIA 265 and/or DIN 1052

Price of First License
1,120.00 USD
RFEM Timber Structures
RF-TIMBER Pro 5.xx

Add-on Module

Timber design according to Eurocode 5, SIA 265 and/or DIN 1052

Price of First License
1,120.00 USD