EK430
Collapse mechanism is a term applying to the state of the structure approaching total collapse. The mechanism condition is reached when a sufficient number of plastic hinges have developed and, […]
EK428
One of the prerequisites of plastic frame analysis is that the structure will not fail by rupture (brittle failure) but by deformations, which may progressively grow without any increase in […]
EK372
The behaviour of a girder under an increasing shear load may be divided into the three phases: Unbuckled. The situation prior to buckling when equal tensile and compressive principal stresses […]
EK223
Theorems for plastic analysis: Lower bound theorem: if only the structure is in equilibrium, that is, the forces and moments, externally and internally, balance, and no bending moment exceeds the […]
EK88
Have a rectangular slab simply supported along each edge, carrying a uniformly distributed load throughout. The slab is assumed to be of constant depth and reinforced in each direction parallel […]
EK79
If we assume that the uniformly distributed load is that which causes a full pattern of yield lines to be produced, i.e. a collapse mechanism, we have an ultimate load […]