Calculation of distributed load on beam

[tayldan]

I'm unsure how to find the distributed load acting on the highlighted beam. The floor load is know (2.4 kPa live load + 5.4 kPa self weight) but I'm unsure what tributary width should be used to determine the distributed load on the beam in kPa.

 

[GeorgeTheCivilEngineer]

You can do a very simple area assignment as a rough order of magnitude (essentially half the P7), but for detailed design because of the combination of columns and walls I would model this in a suitable structural design programme.

 

[HTURKAK]

I'm unsure how to find the distributed load acting on the highlighted beam. The floor load is know (2.4 kPa live load + 5.4 kPa self weight) but I'm unsure what tributary width should be used to determine the distributed load on the beam in kPa.

You can calculate assuming tributary load distribution. You may search the web for ( slab tributary load distribution) or look to the old reinforced concrete books. I searched the web and one of the outcomes . ( Structville ,Ubani)



In your case , if n for service loads = 5.4 kPa +2.4 kPa =7.8 kPa ,
Max load ( ht of triangular loading ) qmax=( 6/2)*7.8=23.4 kN
UDL ( equivalent uniform load of triangular load) q= (6/3)*7.8 =15.6 kN/m ( this UDL could be used for support moments )

Nowadays , almost everybody will prefer to model with FEM and find more precisely.