SUPPORT TOPICS Question & Answer Forum - VR Maintenance/Support Service
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Terrain editing and combining
Regarding terrain editing on UC-win/Road, creating terrain patch allow you to edit optional terrain. Shortage of the default range of terrain patch unable you to expand the range of terrain patch or to consider adjoining terrain patch as one terrain patch. In this case, you should delete the existing terrain patch and select the new range of terrain patch, but it is very difficult for you to set it again.
Follow the steps to combine using terrain patch information you edited and selected.

  1. Save each terrain patch
  2. Open each file with text editor program
  3. Copy the contents of one file to the other file; copy only lines of coordinates without header and footer
  4. Save as a new file in xml format
  5. Delete the original terrain path on UC-win/Road
  6. Read new terrain file
Above steps allow you to change the range of terrain data you couldn't do before.
In case that the terrain patch point number is over 2,000, you can't edit it on the 3D space. However, disregard for the limit of 2,000 allows you to edit within the edit window of terrain patch. In the case that you combine or expand the range, it may exceed the number of limit.

And in the case that you read terrain information from a DM data and a DXF file, it may be the case composed of over 100,000 points, which take much time to process road creation because of many vertical control points or earthwork. For a distant view, you should use 50meter mesh installed in UC-win/Road as default, and load terrain information to use survey point for neighborhood roads. Also, it is better you should use the number of point which have a proper space.
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SUPPORT TOPICS Question & Answer Forum - Dynamic Analysis Maintenance/Support Service
Related Information

The property of the nonlinear element (1)The property of the nonlinear element (2)

The property of the nonlinear element (3)
Let us introduce the model of axial force fluctuation. UC-win/FRAME(3D) supports non linear beam elements: fiber elements and M-Ï¥element. Fiber elements consider axial fluctuation automatically, because fiver elements consider non linear property in a relation between axial stress and axial deformation. On the other hand M-Ï¥elements can't consider the axial fluctuation: M-Ï¥elements are the elements for calculate and analyze the M-Ï¥property using the axial load of dead load. It verifies the difference of result when you use these elements toward the model of axial fluctuation.
The model to be verified is carried out by push-over analysis for rigid frame construction as following.

Fig 1. Model overview

Following is the load displacement curve (P-δ curve) between fiber element and M-ϥelement.

The result in case of fiber element

The result in case of M-Ï¥element

Fig2. Load-displacement curve

Regarding fiber elements, all of plastic hinges reach to the ultimate earlier than the curvature of one element will be two times of ultimate curvature. This determines the ultimate capacity. However, regarding M-Ï¥elements, all of plastic hinges reach to the ultimate curvature earlier than the curvature of one element s will do. This determines ultimate capacity.
Though significant difference cannot be seen until initial yield moment, it can be seen for the capacity and displacements at ultimate time. Allowable ductility factor calculated from above results causes about 1.5 times of difference.
This means that it needs careful attention for applying M-Ï¥elements to axial fluctuation models.

Table1. Result view

So far, we have posted on linear elements property" in a series of three support topics.

The property of the nonlinear element (1)The property of the nonlinear element (2)

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