Calculation of the External Load-bearing Wall for Eccentric Compression

Objective: Check of the load-bearing capacity of an external wall.

Task: Check the capacity of masonry for eccentric compression.

References: Nasonov S.B. Manual for Design and Analysis of Building Structures. M: ASV Publishing House, 2013, p. 183-185.

Compliance with the codes: SP 15.13330.2012

Initial data file:
Example 7.SAV
report – ComeIn 7 Nasonov.doc.

Initial data:

l_o = 3,0 m	Wall height
h = 380 mm	Wall width
b = 1000 mm	Length of a wall section without openings
N = 350 kN	Design load on the wall
е_o = 0,03 m	Load eccentricity
Марка кирпича	M150
Марка раствора	M50

KAMIN initial data:

Importance factor γ_n = 1

Importance factor (serviceability limit state) = 1
Age of masonry - up to a year
Working life is 25 years
Stone/brick - Molded clay brick
Stone/brick grade - 150
Mortar - regular cement with mineral plasticizers
Mortar grade - 50
Specific weight of masonry 1,8 T/m³

Structure:

Clear storey height H = 3 m
Floor slab thickness t = 0,2 m
Wall thickness B = 0,38 m

Effective height

Precast floor slabs.
Distance between transverse rigid structures 6 m.
Effective height factor 0,9.

Loads along the wall length

Wind load q = 0 T/m²
Loads from the floor above the wall
N_э = 350 kN/m
E_э = 0,03 m
Factor for sustained load 1

Comparison of solutions:

Check	For eccentric compression in the upper section (under the floor slab)
Source	350/563,18 = 0,621
KAMIN	0,614
Deviation, %	1,1 %