I know that a line support is subdivided in point supports at plate element nodes, therefore we get point reactions at each node (single reaction at the end nodes and double reaction at each internal node), whereas with the wall element we get only a single reaction.
In the attached example I modeled 4 one way slabs:
top left: 300mm thick one-way slab, 8m span, 1m width, line supports at each end (vertical support only)
top right: 300mm thick one-way slab, 8m span, 1m width, 200 thick wall (no fixities, compressible)
btm left: 300mm thick one-way slab, 8m span, 5m width, line supports at each end (vertical support only)
btm right: 300mm thick one-way slab, 8m span, 5m width, 200 thick wall (no fixities, compressible)
I am after a clarification about the comments below:
1 - the two 1m wide slabs give the save deflection (Max service 7.08 vs 7.1; Long Term Factored Elastic 33.6 vs 33.7), whereas the 5m wide give a difference of 7% (Max service 7.52 vs 7.05; ; Long Term Factored Elastic 36.3 vs 33.5).
2 - The 1m wide slabs line support give quite different DL reactions: If I sum all the point loads I get 258kN, whereas I get only 33.2kN reaction from the wall. From a simple simply supported beam analysis, the reaction should be 33.2kN which is in line with the wall support. Why the weird reactions for the line support?
Thanks