Load Train (LZUG/TRAI) in Sofiload

SOFiSTiK Teddy
1

Hi,

I am trying to modify the contact area of a tandem point load from loading train. Using LZUG/TRAI, i don’t have the option to modify width or length of the wheel contact area. If i were to create a ‘user train’ with TRPL/LZPL, it is possible to change the contact width and length with options. However i want to use the predefined loading train from Eurocode’s load model 1, with only modification of the contact area.

Is there a way to define this without being have to create a user train from scratch?

Thanks in advance.

1 Like
2

No, this is not possible. LM1 is LM1.
If you need different values you must use a user defined load train.

Best regards,
Jost

3

Hi, regarding this topic I have a similar question.
Is it possible to modify the length of the UDL loading somehow?
e.i. Similar to the load-steping method, you can limit UDL loading length to one span.
I need length of only 1m, but can’t find how to do it.
so maybe in TRAI comand or in COPY command?
Thanks in advance

4

Hi Marko,
this can be a possible input:

+PROG SOFILOAD
HEAD Load Train definition
…
LC NO 1212 TYPE none TITL ‘LM 71 onlx short line loads’
TRAI LM71 P1 0 P2 250 P3 80 P4 100 P5 0 P6 0 P7 4 P8 0 P9 1.8 PFAC 1 PHI 0 $$
PHIS 0 WIDT -1.435 YEX 0 XCON 0 V 100 FUGA 1
TRPL DIST DEL $ deletes all loads
sto#lblock 0.50 $ length of line load
TRBL P 80 A -0.5 L #lblock HF 1.80 B -1.435
…
END

5

I see that you delete all standard loads and define a custom load.
But I just want to modify the length of the UDL load, all other standard loads should stay unchanged in the load train.

6

Unfortunately this is not possible. So you must redefine ALL loads.

But you can also try parameters COPY… FROM… TO… DELT, please read chapter 3.14.2 in SOFiLOAD manual. Perhaps this is what you need.

7

yes, also the command COPY may be a solution, but according to the manual or my knowledge, there is no possibility to limit the length to 1m. E.g. only for particular span.

8

Yes, correct. If you need exakty 1 m you must follow my recommendation.

9

If anyone is still interested with this topic, I figured out it is indeed possible to edit these properties through database. Just look for the key you need and change the values.

10

I would be interested in seeing an example if possible (either code snippet here or Teddy file).

11

I don’t know how to do it with Teddy yet. I have done it with the user interface. I first run the sofiload module as attached. Then go to the database and change properties of base load case. Then copy it around.

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