Check of the Support Joint of a Steel Floor Beam

Objective: Check of the local strength of masonry

Task: Check the load-bearing capacity of masonry under bearing stresses

References: Nasonov S.B. Manual for Design and Analysis of Building Structures. M: ASV Publishing House, 2013, p. 217-221.

Compliance with the codes: SP 15.13330.2012 

Initial data file:
Example 13 Nasonov-2.SAV
report – ComeIn 13 Nasonov.doc.

Initial data:

lo = 6,0 m Beam span
a1 = 200 mm Length of the bearing part
b = 510 mm Brick wall thickness
q = 5 kN/m Uniformly distributed load on the beam
Q = 15 kN Beam support reaction
Brick grade M100
Mortar grade M50

 KAMIN initial data:

Importance factor  γn = 1
Age of masonry - up to a year
Working life is 25 years
Stone/brick - Molded clay brick
Stone/brick grade - 100
Mortar - regular cement with mineral plasticizers
Mortar grade - 50

Support design:

 

Steel beam

 

Regular I-beam STO ASChM 20-93 – 20B1

Support conditions:

 

Simply supported

 

L = 6 m
q = 0.5 T/m

 

B = 510 mm
Az = 200 mm

Comparison of solutions:

Check

Bearing deformation of masonry under the beam

Manual

15/23,4 = 0,641

KAMIN

0,652

Deviation, %

1,7 %

Comment: The difference in the results of the calculation is related to the fact that the self-weight of beams is always taken into account in KAMIN.