At the moment, I am designing a bridge only in longitudinal direction, thus I have implemented only a beam model with the full cross section of the bridge. (By the way, a composite concrete-steel CS).

To account for torsional effects, specially due to UDL/TS I would like to apply the loads as lane loads (SPUR). The load is correctly generated in SOFILOAD but it is not applied/calculated in ASE.

Both warnings appear in ASE:

+++++ Warnung Nr. 399 in Programm TLCD
Keine Lasten definiert fĂĽr Lastfall 1 oder alle Lasten im Gleichgewicht
+++++ Fehler Nr. 398 in Programm LOAD
Keine Lasten definiert fĂĽr Lastfall 1
Es wurden aber trotzdem alle LastfĂ¤lle durchgerechnet und abgespeichert.
Diese Fehlermeldung kann mit STEU WARN 398 abgeschaltet werden.

Question: is there a way to correctly apply lane loads (SPUR) on beam models outside of beam axis, i.e. lane loads over cross-section area or should I model QUAD elements in order to account for those loads?

I recommend to follow our â€śTraffic Loaderâ€ť task inside SSD. This task defines all necessary lanes and also applies the loads eccentrically on your beam system. Pleas see our online video training part #9, where we explain the main workflow.
E.g. I recommend the full bridge desgin video training.

The problem is that I do not work with SSD at all.

Regarding UDL, the problem is solved. Since I have different beam groups, I can transform the area loads into line loads and apply them directly to the beam groups with an eccentricity.

Regarding TS, the problem is not solved since I do not have the possibility to divide load application by groups. After generating the LZUG USER P 0.0, I tried to add point loads with LZPL, but the loads are somehow not being inputted. I found a possibility to work with the function STEL; the loads are applied, but I will lose precision in load application. Besides, it is not an elegant solution to the problem and is harder to parameterize.

Honestly, I need a Teddy script with traffic loads applied to beam models with eccentricity, but I could not find it in the examples list.

Hi Lucas,
when using load trains SOFiLOAD is checking the dimensions of the cross sections. If TS-loads are beside the cross section the loads cannot be applied.

There are many possibilities to define loads onto a system. If you have a problem simply upload the system and describe where you get a problem and what you expect there.

The chosen solution was doing TS loads with ELLA, so I do not have to directly deal with line/area loads on a beam with eccentricity. Not exactly what I wanted (cannot check â€śLastsummeâ€ť and whatnot but it does the job). Besides the limit functions are already defined. One rock, two birds.

Another alternative is to model a plate with shell elements overwritting the concrete section of the beam and then later using QUEX or PLEX to remove/decrease the stiffness of the plate. Thus, a plate used only for load distribution (design in transversal direction is â€śkein Themaâ€ť here. Kind of an OK solution, but with unnecessary modelling of elements.

Anyway, I appreciate the help and I will be aware of the issue whenever I opt for a beam model again.