Check of the Support Joint of a Steel Floor Beam γ ∙ n2
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 |
COMEIN 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 |
B = 510 mm |
Comparison of solutions:
|
Check |
Bearing deformation of masonry under the beam |
|
Manual |
15/23,4 = 0,641 |
|
COMEIN |
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 ComeIn.