Rosewood Project, Bangkok - Structural Calculation Report

Rosewood Project, Bangkok - Structural Calculation Report

SCOPE OF THE REPORT:

The purpose of this report is to check the characteristics of the Stonescreen Aerolite© composite

panel affected by wind load verifying the tensions stress acting on each layers that compose

facade panel. The layers of complete façade system panel is made up as follows: 2 mm (fiber

glass mesh) + 30 mm (Stonescreen Aerolite© panel) + 1 mm (fiber glass mesh) + 5 mm (Limestone

Louvre).

PROJECT SPECIFICATIONS

UNITS

1 daN/cm2 = 1*10-1 N/mm2

MATERIAL PROPERTIES

Foam Glass panel

Panel dimension: 820x520hx30 mm

Density: 0.0004 Kg/cm3

Young modulus: 1200 daN/cm2

Shear modulus: 484 daN/cm2

Poisson ratio: 0.24

Linear coefficient of thermal expansion: 9*10-6 °C-1

Compressive strength: 101.1 daN/cm2

Limestone Louvre

Panel dimension: 820x520hx5 mm



Shear modulus: 140000 daN/cm2

Poisson ratio: 0.25


Flexural strength: 84 daN/cm2

Compressive strength: 470 daN/cm2

Fibre glass mesh

Tensile strenght: 25000 daN/cm2


Area rated section (AV): 24 mm2 /20 cm



WIND ACTION

It is considered a typical average value of 2,0 KN/m2.

STRUCTURE CONCEPT

It has been used the following structural scheme in order to obtain the values of the stresses on

façade elements resulting by two load wind conditions:

- load case_1: DEAD LOAD + WIND PRESSURE

- load case_2: DEAD LOAD + WIND DEPRESSION

The complete Stonesceen© Aerolite panels are formed by a front face in stone, fibre glass mesh,

foamglass and rear another fibre glass mesh coat.

In this report we will analyze the stresses acting on the borders of the stone, of the foamglass and

also will be analyzed the resulting tensile stresses which afflict both the glass fiber and the resin

used for the fixing the various layers.

As reported below, we consider four constraints for fixing the panel to a sub-structure to being

analyzed in successive report. The wind action has been schematically shown by the point loads

corresponding to each corner of the solid elements constituting the structural model.

F= 200 kg/m2 * (0.82 m * 0.51 m)/609 = 0.14 Kg = 0.14 daN

LOAD CASE 1: LIMESTONE LOUVRE FACE 5MM VERIFICATION STATE

Rear Face_STONE

COMPRESSIVE AND TENSILE STRESS SAFETY FACTOR

TXX

= (3.59;-4.21) daN/cm2

TZZ

= (3.59;-1.99) daN/cm2

σTENSILE STRESS

= √(TXX

2+ TZZ

2)= √(3.592+3.592)= 5.07 daN/cm2

σCOMPRESSIVE STRESS

= √(TXX

2+ TZZ

2)= √(4.212+1.992)= 4.66 daN/cm2

σTENSILE STRESS

= 5.07 daN/cm2 < 84 daN/cm2 = σres

VERIFIED (safety factor 16)




Front Face_STONE

LOAD CASE 1: STONESCREEN AEROLITE© 30MM VERIFICATION STATE

Rear Face_STONESCREEN AEROLITE©


TXX

= (0.0138;-0.13) daN/cm2

TZZ

= (0.0135;-0.11) daN/cm2

σTENSILE STRESS

=√(TXX

2+ TZZ

2)=√(0.01382+ 0.01352)= 0.0193 daN/cm2


= √(TXX

2+ TZZ

2)= √(0.132+ 0.392)= 0.41daN/cm2

σTENSILE STRESS

= 0.0193 daN/cm2 < 21.1 daN/cm2 = σres



= 0.41 daN/cm2 < 101.1 daN/cm2 = σres


Front Face_STONESCREEN AEROLITE©

LOAD CASE 1: FIBRE GLASS MESH VERIFICATION STATE (2MM)

Rear Face_FIBRE GLASS MESH


TXX

= (27.12;-21.41) daN/cm2

TZZ

= (17.55;-14.06) daN/cm2

σTENSILE STRESS

= √(TXX

2+ TZZ

2)= √(27.122+17.552)= 32.30 daN/cm2

σTENSILE STRESS

= 32.30 daN/cm2 < 25000 daN/cm2 = σres


Front Face_FIBRE GLASS MESH

LOAD CASE 2: LIMESTONE LOUVRE FACE 5MM VERIFICATION STATE


TXX

= (4.23;-3.56) daN/cm2

TZZ

= (2.00;-3.56) daN/cm2

σTENSILE STRESS

= √(TXX

2+ TZZ

2)= √(4.232+2.002)= 4.68 daN/cm2


= √(TXX

2+ TZZ

2)= √(3.562+3.562)= 5.03 daN/cm2

σTENSILE STRESS






Front Face_STONE

LOAD CASE 2: STONESCREEN AEROLITE© 30MM VERIFICATION STATE

Rear Face_STONESCREEN AEROLITE©


TXX

= (0.12;-0.0245) daN/cm2

TZZ

= (0.10;-0.0241) daN/cm2

σTENSILE STRESS

=√(TXX

2+ TZZ

2)=√(0.122+ 0.102)= 0.156 daN/cm2


= √(TXX

2+ TZZ

2)=√(0.02412+ 0.02452)=0.034 daN/cm2

σTENSILE STRESS

= 0.156 daN/cm2 < 21.1 daN/cm2 = σres



= 0.034 daN/cm2 < 101.1 daN/cm2 = σres


Front Face_STONESCREEN AEROLITE©

LOAD CASE 2: FIBRE GLASS MESH VERIFICATION STATE (1MM)


TXX

= (4.67;-0.13) daN/cm2

TZZ

= (3.30;-1.73) daN/cm2

σTENSILE STRESS

= √(TXX

2+ TZZ

2)= √(4.672+3.302)= 5.72 daN/cm2

σTENSILE STRESS

= 5.72 daN/cm2 < 25000 daN/cm2 = σres


Front Face_FIBRE GLASS MESH

LOAD CASE 1_2: FIXING VERIFICATION STATE

According to the pull-out tests conducted by the lab

GEOCONSULT with an average value = 9040 N

FPULL-OUT = 21.78 daN < 904 daN = FPULL-OUT RES


Date: July 14th 2016

Signed: Prof. Ing. Gaetano Nardini

CONCLUSIONS:

Rosewood Project, Bangkok - Structural Calculation Report

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