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  γn = 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 %