news

News
News
Home / News / Pool wall calculation

Pool wall calculation

Update:18-05-2022
Summary:

  1、 Calculation diagram The acrylic plate is loca […]

 

1、 Calculation diagram

The acrylic plate is located at one corner of the pool, and the rest are concrete pool walls, as shown in the figure.

 

The bottom plate is the ground, so it is only necessary to check the strength and deflection of the concrete pool wall and acrylic plate.The acrylic plate is installed vertically to the ground and works integrally with the concrete pool wall.

 

Figure 1Acrylic plate of pool wall

 

350 thick concrete pool wall is adopted for 2-3, 1-3 and 3-4.4-5 and 5-2 adopt 120mm thick acrylic plate

 

2、 Load calculation

Gravity load of pool water:

Water density 1×103 kg/m3, pool depth th=1.2m,

 

3、 Calculation of internal force and reinforcement of concrete slab

Note: there is no top plate when opening, and the midspan X and y of the top plate and bottom plate refer to the direction under the overall coordinate system;For the middle wall plate, regardless of the inside and outside, the maximum value of the results on both sides is taken as the final reinforcement scheme, which is configured symmetrically on both sides. At this time, the table on the outside of the pool is represented by horizontal bars.

Unit: m (KN · m), n (KN), calculated area (mm2/m), actual area (mm2/m)

position

Inside of pool

Outside of pool

Basic combination of internal force

Calculated area

Optional reinforcement

Actual area

Basic combination of internal force

Calculated area

Optional reinforcement

Actual area

M

N

combination

M

N

combination

Wall panel 2-1

2 sides

-1.6

5.4

5

700

 12

@150

754

-1.6

5.4

5

700

 12

@150

754

1 side

-4.5

15.3

5

700

 12

@150

754

-4.5

15.3

5

700

 12

@150

754

Below

-6.4

-9.8

6

700

 12

@150

754

0.8

-13.1

7

700

 12

@150

754

Top

-0.0

-3.0

7

700

 12

@150

754

0.2

-2.2

5

700

 12

@150

754

Mid span level

0.3

13.9

7

700

 12

@150

754

0.5

13.1

5

700

 12

@150

754

Midspan vertical

-0.8

-7.1

5

700

 12

@150

754

0.3

-7.6

7

700

 12

@150

754

Wall panel 1-3

1 side

-5.4

13.7

5

700

 12

@150

754

-5.4

13.7

5

700

 12

@150

754

3 sides

-5.4

13.9

5

700

 12

@150

754

-5.4

13.9

5

700

 12

@150

754

Below

2.5

-14.3

7

700

 12

@150

754

2.5

-14.3

7

700

 12

@150

754

Top

-0.1

-1.8

7

700

 12

@150

754

0.5

-0.6

5

700

 12

@150

754

Mid span level

-0.1

13.1

5

700

 12

@150

754

2.1

14.2

5

700

 12

@150

754

Midspan vertical

1.5

-8.0

5

700

 12

@150

754

1.5

-8.0

5

700

 12

@150

754

Wall panel 3-4

3 sides

-4.5

15.0

5

700

 12

@150

754

-4.5

15.0

5

700

 12

@150

754

4 sides

-0.6

-4.8

6

700

 12

@150

754

0.0

-6.7

7

700

 12

@150

754

Below

-6.6

-8.3

6

700

 12

@150

754

0.5

-11.9

7

700

 12

@150

754

Top

0.3

-3.8

5

700

 12

@150

754

0.3

-3.8

5

700

 12

@150

754

Mid span level

0.5

14.5

5

700

 12

@150

754

0.5

14.5

5

700

 12

@150

754

Midspan vertical

-0.9

-6.2

6

700

 12

@150

754

0.2

-8.0

7

700

 12

@150

754

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4、 Crack width calculation

position

Inside of pool

Outside of pool

Quasi permanent combination value of internal force

Crack width (mm)

Quasi permanent combination value of internal force

Crack width (mm)

MQ (KN · m/m)

NQ (kn/m)

combination

MQ (KN · m/m)

NQ (kn/m)

combination

Wall panel 2-1

2 sides

-1.3

4.2

2

0.01

-

-

-

-

1 side

-3.7

12.4

2

0.03

-

-

-

-

Below

-5.0

-10.0

2

0.02

-

-

-

-

Top

-

-

-

-

0.2

-1.8

2

0.00

Mid span level

-0.1

0.5

2

0.00

-

-

-

-

Midspan vertical

-0.7

-5.9

2

0.00

-

-

-

-

Wall panel 1-3

1 side

-4.4

11.1

2

0.03

-

-

-

-

3 sides

-4.3

11.2

2

0.03

-

-

-

-

Below

-

-

-

-

2.1

-11.9

2

0.00

Top

-

-

-

-

0.4

-0.6

2

0.00

Mid span level

-

-

-

-

1.7

11.4

2

0.02

Midspan vertical

-

-

-

-

1.2

-6.7

2

0.00

Wall panel 3-4

3 sides

-3.7

12.2

2

0.03

-

-

-

-

4 sides

-

-

-

-

-

-

-

-

Below

-5.2

-8.5

2

0.02

-

-

-

-

Top

-

-

-

-

-

-

-

-

Mid span level

-

-

-

-

-

-

-

-

Midspan vertical

-0.7

-6.3

2

0.00

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

5、 Strength and deflection calculation of acrylic plate

strength calculation

The standard load combination is adopted, and the results are as follows

4-5 acrylic pool wall

 

The maximum stress is 1.34 (n/mm2) <76 (n/mm2)

5-2 acrylic pool wall

 

The maximum stress is 1.03 (n/mm2) <76 (n/mm2)

The century flag cloud is used to calculate the strength and deflection of the acrylic plate, in which the self weight of the acrylic plate is loaded by the software.

Strength calculation of single acrylic plate:

Load case s=1.2d

The strength of acrylic plate is 1.6n/mm2) <76 (n/mm2)

The strength of acrylic plate meets the requirements!

 

Deflection calculation

Load case: b=1.0d

4-5 acrylic pool wall

 

The maximum deformation of acrylic plate is 0.4mm, less than 1200/200=6mm

The deflection of acrylic plate meets the requirements!

5-2 acrylic pool wall

 

 

The maximum deformation of acrylic plate is 0.6mm, less than 1200/200=6mm

The deflection of acrylic plate meets the requirements!

 

PREV: