Strength Analysis of a Wall Panel

Objective: Check of the strength of the wall panel

Task: Check the strength of the section

References: Guide on designing of concrete and reinforced concrete structures made of heavy-weight or lightweight concrete (no prestressing) (to SNiP 2.03.01-84), 1989, p. 32-34.

Initial data file:

SCAD 12 SNiP.spr
report –SCAD 12 SNiP.doc

 

Compliance with the codes: SNiP 2.03.01-84. 

Initial data:

l = 5,8  m	Пролет стеновой панели
b×h = 340×1195 mm
qtot  = 3,93 kN/m2	Total vertical uniformly distributed load
(qx  = 17,72 kN/m)	Reduced load in the panel plane
qw = 0,912 kN/m2	Wind load
(qy  = 3,83 kN/m)	Reduced load out of the panel plane
Concrete class	В3,5; D1100
Class of reinforcement	А-III

 

Results of the SCAD analysis:

N Max. 0 T Snap 0 m Max. 0 T Snap 0 m	My Max. 0 kN*m Snap 0 m Max. 74,51 kN*m Snap 2,9 m	Mz Max. -16,11 kN*m Snap 2,9 m Max. 0 kN*m Snap 0 m
Mk Max. 0 kN*m Snap 0 m Max. 0 kN*m Snap 0 m	Qz Max. 5,24 T Snap 0 m Max. -5,24 T Snap 5,8 m	Qy Max. 1,13 T Snap 0 m Max. -1,13 T Snap 5,8 m
	Length of the bar 5,8 m Length of the flexible part 5,8 m Loading L1 - "17,72 kN/m + 3,83 kN/m"

 

 

Structural group Wall panel

Importance factor  γ_n = 1

Member type - Member under compression and bending (in tension)

Stress state - Biaxial bending

Maximum percentage of reinforcement 10
Random eccentricity along Z₁ 0 mm
Random eccentricity along Y₁ 0 mm

Structure is statically indeterminate
Effective length factor in the X₁OZ₁ plane 1
Effective length factor in the X₁OY₁ plane 1

 

Coefficients allowing for seismic action
Normal sections	0
Oblique sections	0

 

Distance to the c.o.g. of reinforcement
a1	a2
mm	mm
75	75

 

Reinforcement	Class	Service factor
Longitudinal	A-III	1
Transverse	A-I	1

 

Concrete
Concrete type: Lightweight
Concrete class: B3,5
Grade by average density: D1100
Aggregate: Artificial dense
Hardening conditions: Natural
Hardening factor 1

Service factor for concrete
γb2	allowance for the sustained loads	1
	resulting factor without γb2	1,1

Humidity of environmental air - 40-75%

 

Structural group Wall panel. Element No. 1
Member length 5,8 m

Specified reinforcement

Segment	Reinforcement	Section
1	S1 - 2Ø10, second row 2Ø6 Clear distance between rows 92 mm S2 - 2Ø10, second row 2Ø6 Clear distance between rows 467 mm

 

Results
Segment	Utilization factor	Check	Checked according to SNiP
1	0,99	Ultimate moment strength of the section	Sec. 3.15-3.20, 3.27-3.28

 

Comparison of solutions:

Check	Strength of the section
Guide	74,5/78,4 = 0,95
SCAD	0,99
Deviation, %	4,2 %