topic Re: Moving loads on claddings in Robot Structural Analysis Forum

Moving loads on claddings

Rafacascudo — Thu, 02 Jul 2015 18:51:06 GMT

I set the main longitudinal girders only to get the load distribution ( cladding options , analyse). It works well for self weight and other distributed over large areas loads.

Vehicle has 6 concentraded loads travelling on slab claddings.Main girders are selected in red( old fashioned )

Generated loads are everywhere including a truss diagonal (L100x100) which is getting a 7,6tf concentrated load on midspan!See red arrows on below picture

Tried with equivalent surface loads vehicle and the loads were not generated at all, either leaving it on "automatic" or selecting all the claddings on moving loads dialog window.

Then I created a regular "Test" load case with concentrated(point loads) and distributed on contour loads.They all were distributed only for the main girders!!!

Ok, but observing the generated loads for this "test" load case , I noticed something that was not right.

For a 10 tf concentrated force almost on midspan between the 2 main girders , the generated linear bar load goes only to the bar which has the load on its own distribution area!!!!The same occurs to surface loads on contours

Am I doing something wrong on both issues??

Is this the correct rule for triangular /trapezoidal method?? What is inside the bar´s distribution area goes only to this same bar??

Re: Moving loads on claddings

Rafal.Gaweda — Fri, 03 Jul 2015 07:15:30 GMT

File please.
Truly saying we have never thought that moving load can be run on cladding.

Re: Moving loads on claddings

Rafacascudo — Fri, 03 Jul 2015 11:40:15 GMT

File attached. Rename to .rar ,please

TT1 is moving load with concentrated loads.

TT2 is with surface loads

"teste" load case has point and contour loads being automatically generated

Re: Moving loads on claddings

Rafal.Gaweda — Fri, 03 Jul 2015 13:34:06 GMT

As I told you moving loads are not applied to claddings.

In moving load definition activate Selection and select girders only ( 163to169 182to199 204to215 217to237 239to254 256to293 295to322 324to424 179 201 202 430 432to434 436to478 487to595 597to629 631to685By18 632to680By16 635to638 644to646 651to666By3 652to661By3 669to671 673to682By3 674to710By9 677 686 688to730By14 689 691to739By16 694to696 698to828By26 699to717By6 704to779By25 708to780By24 713to773By20 714to786By24 719to721 726to819By31 727to823By32 735 736to826By30 741 742 745to825By20 751to820By23 760to829By23 763 768 777 782 789to822By11 799 803 808 809 812 814 831 832 834 835 867to878 889to892)