Effective height of masonry walls
Calculation of buckling lengths is based on the chapter 5.5.1.2 of EN 1996-1-1.
Effective height of masonry wall is calculated using equation
where: | hef |
|
ρn |
| |
h |
|
Walls restrained at the bottom
Reduction factor ρn is calculated using equation
Walls restrained at the top and bottom
Reduction factor ρn for walls restrained at the top and bottom is
Reduction factor ρn of the walls restrained at the top and bottom by RC slabs from both sides (or from one side with bearing of at least 2/3 thickness of the wall) with the eccentricity of the load at the top smaller than 0.25 times the wall thickness is equal to
Walls restrained at the bottom and stiffened on one vertical edge
Reduction factor ρn for walls restrained at the bottom and stiffened on one vertical edge is calculated according to the following equations:
For
is the raduction factor ρn calculated using equation
For
is the raduction factor ρn calculated using equation
where: | h |
|
l |
| |
ρ2 |
|
Walls restrained at the top and bottom and stiffened on one vertical edge
Reduction factor ρn for walls restrained at the top and bottom and stiffened on one vertical edge is calculated according to the following equations:
For
For
is the raduction factor ρn calculated using equation
where: | h |
|
l |
| |
ρ3 |
|
Walls restrained at the bottom and stiffened on both vertical edges
Reduction factor ρn for walls restrained at the bottom and stiffened on both vertical edges is calculated according to the following equations:
For
is the raduction factor ρn calculated using equation
For
is the raduction factor ρn calculated using equation
where: | h |
|
l |
| |
ρ3 |
|
Walls restrained at the top and bottom and stiffened on both vertical edges
Reduction factor ρn for walls restrained at the top and bottom and stiffened on both vertical edges is calculated according to the following equations:
For
is the raduction factor ρn calculated using equation
For
is the raduction factor ρn calculated using equation
where: | h |
|
l |
| |
ρ4 |
|