Member releases - top and bottom chords

[cramanayaka]

I am analysing a truss and I released all the web members to be ‘pinned-pinned’. However, I am not sure whether I need to assign member releases for the top and bottom chords (at the moment, the status is ‘N/A’). I have modelled the chords as ‘continuous’. As shown in the figure below, I have assigned nodal supports, one pinned end and another roller support. Because of the nodal supports, I assume that top and bottom chords do not need any member releases to be assigned. I am sorry for many questions posted during a short time. I am a learner.

Thanks

Chamil

[Rafacascudo · Accepted solution]

that is correct for a real world truss ( continuous chords) . No need for releases . But there can be moments on the chords intersection and along the full lenght of the chords.

As an option , instead of  bar releases ,diagonals can be set as truss bars(Geometry/additional atributes/ advanced bar properties).Easier

But if you want to model an  "ideal "  truss , then use "truss 2d"  structure type

[Mohammed_Ata · Accepted solution]

As @Rafacascudo mentioned, it is better to use advanced bar properties and assign the elements as truss bars to only consider axial force. 

[cramanayaka]

Thanks a lot; I managed it with your help