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GEO5

Stromeček
Nastavení
Produkt:
Program:
Jazyk:

GB 50003-2011 - Gravity Wall

The masonry is verified for the load caused by the combination of the compressive normal force and the bending moment and for the load due to the shear force.

Verification of compression bearing capacity

Non-seismic design situation (Art 5.1.1):

Seismic design situation (Art 10.1):

where:

γ0

-

coefficient of the importance of structure

N

-

design value of the normal force

f

-

design value of compressive strength of masonry

A

-

area of cross-section

φ

-

influence factor due to eccentricity of normal force and the depth-thickness ratio of the structure

γRE

-

seismic adjusting coefficient for compressive strength of masonry

φ is provided by:

When β ≤ 3 (Art D.0.1-1)

When β > 3 (Art D.0.1-2, D.0.1-3)

where:

e

-

eccentricity of a normal force acting on the cross-section

B

-

depth of the cross-section

φ0

-

stability coefficient of the structure loaded with axial pressure

α

-

coefficient due to strength grade of mortar

β

-

depth-thickness ratio of the structure

β is provided by:

where:

γβ

-

adjusting coefficient of depth-thickness ratio based on the type of masonry material

H

-

height of the structure above cross-section

Verification of shear bearing capacity

Non-seismic design situation (Art. 5.5.1-1):

Seismic design situation (Art. 10.1):

When γG 1.2 (Art 5.5.1-2):

When γG 1.35 (Art 5.5.1-3):

Intermediate values are interpolated.

where:

γ0

-

coefficient of importance of the structure

V

-

design value of shear force

fv

-

design value of shear strength of masonry

A

-

area of the cross-section

σ0

-

average value of normal stress on the cross-section

f

-

design value of compressive strength of masonry

γG

-

partial factor for permanent actions

α

-

correction factor; when γG 1.2: α = 0.64; γG 1.35: α = 0.66 Intermediate values are interpolated

μ

-

influence factor for shear-compression load

γRE

-

seismic adjusting coefficient for shear strength of masonry

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