PowerPoint Presentation

ROOF TRUSS DESIGN

TEKNIK PERAWATAN DAN PERBAIKAN GEDUNG

Created by :

Ade Nova (131144002)

Taufiq Prihantoro (131144025)

Geometry Structure

Span of Length = 18,54 m

Height = 2,29 m

Geometry Structure

MATERIAL PROPERTY

FRAME PROPERTY

FRAME PROPERTY

2L65X65X6

FRAME PROPERTY

2L75X75X6

FRAME PROPERTY

2L60X60X5

FRAME PROPERTY

L25X25X3

FRAME PROPERTY

L60X60X5

FRAME PROPERTY

L65X65X8

LOAD PATTERN

1,4D

1,2D + 1,6H + 0,8W

1,2D + 1,3W + 0,5H

COMBINATION

LOAD COMBINATION

LOAD COMBINATION 1

LOAD COMBINATION 2

LOAD COMBINATION 3

LOAD COMBINATION ENVELOPE

SDL

Roof

Weight of roof component= 50 kg/m2

Distance between truss = 6 m

Expanse length (L)= 9,32 m

Total joint (n)= 11

Total Weight= weight component x distance x Length

= 50 kg/m2 x 6 m x 9,32 m x 2 = 5592 kg

Weight per joint= Total weight / n

= 5592 kg / 11 = 508,36 kg 508 kg

Plafond

Weight of plafond component and hanger= (11 + 7) = 18 kg/m2

Distance between truss = 6 m

Expanse length (L)= 18,54 m

Total joint (n)= 11

Total Weight= weight component x distance x Length

= 18 kg/m2 x 6 m x 18,54 m = 2002.32 kg

Weight per joint= Total weight / n

= 2002.32 kg / 11 = 182,029 kg 182 kg

SDL (Superimposed Dead Load)

Wind

Press Wind

Horizontal

Minimum pressure of wind= 25 kg/m2

Distance between truss = 6 m

Expanse length (L)= 1,37 m

Total joint (n)= 2

Total Weight= weight component x distance x Length

= 25 kg/m2 x 6 m x 1,37 m = 205.5 kg

Weight per joint= Total weight / n

= 205.5 kg / 2 = 102.75 kg 103 kg

Press Wind

Oblique

Minimum pressure of wind= 25 kg/m2

Distance between truss = 6 m

Expanse length (L)= 9,32 m

Total joint (n)= 6

`

Total Weight= weight component x distance x Length

= 25 kg/m2 x 6 m x 9,32 m = 1398 kg

Weight per joint= Total weight / 6

= 1398 kg / 6 = 233 kg

Horizontal weight = sin W = sin 5,61 x 233 kg = 22,77 kg

Vertical weight = cos W = cos 5,61 x 233 kg = 231,88 kg

Sin W

W

Cos W

= 5,61

PRESS WIND LOAD

SIPPED WIND LOAD

DEFORMATION

ENVELOPE

ELEMENT FORCES

Shear 2-2 (kN)

ELEMENT FORCES

Axial (kN)

ELEMENT FORCES

Momen 2-2 (kNmm)

CAPACITY RATION

Masses and Weights

TABLE: Material List 2 - By Section PropertySectionObjectTypeNumPiecesTotalLengthTotalWeightTextTextUnitlessmKgfL60.60.5Frame1025.53503115.242L.60.60.5Frame1018.63199164.52L25.25.3Frame12.2862.53L65.65.8Frame1018.54202142.042L75.75.6Frame22.743236.432L65.65.6Frame814.68051167.31628.07

Bill of Quantity

Cost of 1kg steel frame can estimated 1$ or Rp 12.576,00

Total of mass this truss is 628,07 kg

So, total cost of this truss is 628,07 * 12.576= Rp 7.898.608,32

Conclusion

The type of profile that we used are

2L60.60.5

L60.60.5

L25.25.3

L65.65.8

2L75.75.6

2L65.65.6