What is the Difference between load bearing and frame structure?

Answer 1

Trusses and frames are both composed of triangular members connected at joints.

In a truss, the joints are pin type joints and the members are free to rotate about the pin. As such, a truss cannot transfer moments and members are subjected to only axial forces (tensile and compression).

On the other hand, members of frames are connected rigidly at joints by means of welding and bolting. Therefore the joints of frames can transfer moments in addition to the axial loads.

In a practical setting, you may see trusses with no flexibility in joints, but it is still acceptable to analyse them as a perfect truss.

Answer 2

Differences:

1) In L.B.S, the load is transferred to the foundation across (through) walls while in F.S, it's (load)=> beams => columns => foundation.

2) L.B.S: Not applicable to remove bricks for the sake of any modification to an existing load bearing structure & usually small windows used (for better load transference with enough bricks)

F.S : No prob with modifications & large windows are installable

No.2 is the practical aspect of the difference. U can figure out the applications based on the main idea as given in No.1

Answer 3

Load bearing structures are structures where the load is transferred to the foundations via load bearing internal and external walls (e.g., masonry houses, pyramids in Egypt). They are generally characterized by having a small window-to-wall ratio (i.e., more structural wall area than window openings) and internal walls. Due to the large stresses within the brick or stone walls, the height of load bearing structures is limited.

Think of modern-day skyscrapers. The first framed building was the Home Insurance Building in Chicago built in 1884-85.