Wednesday, 28 August 2019

FAQ: Easy way to directly modify coordinates


Story

It happens quite often, that you need to import static models from other modeling software into CONSTEEL™. This is a very practical and effective solution that can greatly simplify your work. However, it is very important that the original model is accurate in order to have a good CONSTEEL™ model. If not, it could easily lead to unpleasant problems for the user. This is the case in this example. One of our dear users has imported a model into CONSTEEL™. When running the analysis, he gets an error message that “the columns are not exactly vertical”. What does this mean?
For CONSTEEL™, it is basically irrelevant whether a member is created as a beam or column, both appear as the same member for analysis. The create column command is just to make it easier to place columns by specifying only one point. Then why is it bad if the column is not exactly vertical?
The CONSTEEL ™ must decide the default direction of the local axes of the member. In common cases it's not that complicated of course. In the case of a beam, the Y axis is parallel to the XY plane, the z axis is upwards, in the case of a column, the Y axis is towards the global Y axis and Z is the global X axis. But what if a column is "not exactly vertical"? What was the user’s purpose? Is it a beam or a column? It is up to the user to make this decision. That is why in this case the software gives the above-mentioned error message.
In this example between the endpoints of some of the columns there were a very small distance.

CONSTEEL ™ has a modeling error correction algorithm that attempts to correct similar errors by merging nearby nodes. The error correction algorithm moves the top node of the column to the bottom node of the other.

However, after that the column is no longer vertical. Because it is not vertical, its local system rotates as if it were a beam. See the yellow colored part of the column on the picture below.

To avoid this, you have to make all the nodes in those members exactly in the same vertical line. How to make it easily? Please, watch the video and follow the steps as described below.

Tutorial



First, you need to switch the coordinate display to global values on the status bar.
Then execute the <Move Point and Edge> command on the left command line.
Now select the members of which you want to modify the coordinates. It is easier if you first switch to line view mode.
Once the elements have been selected, move the cursor to a point of the selected members and read the required coordinate in the status bar. In this case we need the Y coordinate.
Please notice, that a new properties group, called "Points", has appeared in the panel on the right edge of the screen. Expanding this by clicking on the small cross will show that the coordinates do not match. For now, let's deal with the Y coordinate only. Click on the "different" half note and rewrite the value you just read, now 58500. Enter will accept the value entered.
If you switch to the hidden line or solid view, you can also see that because the column is now exactly vertical, it also turned in the direction of the global axes.

I hope I was able to help many of you with this little trick. I wish you a great job with CONSTEEL™!

Friday, 23 August 2019

Customer project - Steel Structure of glass facade in Warsaw

Structural Engineer:
Magdalena Rygulska
Jerzy Holm
Design office 
Konstruktornia sp. z.o.o.
Location
Warsaw, Poland
Built in
2019
Size
73 x 30 x 20 m
Weight
80t

One of the most ambitious projects in Poland, the Mennica Legacy Tower complex in Warsaw. It consist of a 130m and a 36m high buildings providing about 64000 sq.m. space for offices. The complex was designed by the Goettsch Partners architecture studio in Chicago.


These innovative buildings use energy efficient and environmentally friendly solutions in accordance with BREEAM's "Excellent" Ecological Certification. 
The steel structure for supporting the glass facade was designed with the help of ConSteel, by Konstruktornia sp. z.o.o. 



We thank team Konstruktornia sp. z.o.o. for using Consteel software for their work and for providing info and pictures about this nice project.

Tuesday, 6 August 2019

Customer project - Stadium in Poland, Zagłębiowski Park Sportowy

Structural Engineer:Magdalena Rygulska
Jerzy Holm
Design office Konstruktornia sp. z.o.o.
www.konstruktornia.pl
LocationSosnowiec, Poland
Built in2020
Size180 x 145 x 20m
Weight1300t

A very nice project is being carried out in Poland, where the structural design of the football stadium was carried out with ConSteel. The project consists of a stadium (12 000 seats), a spectacular arena (3000) and an indoor ice rink (2500). The football arena can grow to 14 546 seats after adding 4 rows to the crown of the tribune.



The complex has a symmetrical layout and harmoniously blends with the existing park layout. The main motive was to refer to the naturalness of the surroundings, hence the elevations of all buildings are to be covered with light, wooden lamellas. The rounded shapes of the buildings make it possible to create an interesting layout of paths, and from a bird's perspective they refer very well to the shape of the existing hill.






The complex will be implemented in stages. First, the stadium will be built, then the entertainment hall and the third - a winter stadium with an ice rink.