Bracing Systems Bracing Systems 1 1 Rod Bracing Rod Bracing 2 - - PowerPoint PPT Presentation

▶
bracing systems bracing systems
SMART_READER_LITE
LIVE PREVIEW

Bracing Systems Bracing Systems 1 1 Rod Bracing Rod Bracing 2 - - PowerPoint PPT Presentation

Apr 05, 2024 151 likes •879 views

Bracing Systems Bracing Systems 1 1 Rod Bracing Rod Bracing 2 2 Wind Bracing Systems Wind Bracing Systems HOW BRACING WORKS 3 3 Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Load Dispersal

slide-1
SLIDE 1

Bracing Systems Bracing Systems

1 1

slide-2
SLIDE 2

Rod Bracing Rod Bracing

2 2

slide-3
SLIDE 3

Wind Bracing Systems Wind Bracing Systems

3 3

HOW BRACING WORKS

slide-4
SLIDE 4

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

4 4

Load Dispersal

The WIND load on Endwall panels...

slide-5
SLIDE 5

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

5 5

Load Dispersal is dispersed through Endwall framing...

slide-6
SLIDE 6

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

6 6

Load Dispersal into the Continuous Purlin system.

slide-7
SLIDE 7

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

7 7

Load Dispersal The Purlins transfer the load...

slide-8
SLIDE 8

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

8 8

Load Dispersal into the roof Brace Rods.

slide-9
SLIDE 9

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

9 9

Load Dispersal The load travels through the Roof bracing...

slide-10
SLIDE 10

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

10 10

Load Dispersal through the Eave Purlin ...

slide-11
SLIDE 11

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

11 11

Load Dispersal to the wall Diagonal Bracing ...

slide-12
SLIDE 12

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

12 12

Load Dispersal ...(or auxiliary bracing)...

slide-13
SLIDE 13

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

13 13

Load Dispersal into the Building’s foundation.

slide-14
SLIDE 14

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

14 14

Load Dispersal into the Building’s foundation.

slide-15
SLIDE 15

Transverse (Perpendicular Transverse (Perpendicular to Sidewall) to Sidewall)

15 15

slide-16
SLIDE 16

Longitudinal (Perpendicular Longitudinal (Perpendicular to Endwall) to Endwall)

16 16

slide-17
SLIDE 17

Standard EP Location Standard EP Location

17 17

slide-18
SLIDE 18

Roof Rods Break at Endpost(s) Roof Rods Break at Endpost(s)

18 18

slide-19
SLIDE 19

Wind Bracing Wind Bracing

19 19

If possible, keep endpost spacing If possible, keep endpost spacing similar similar at each endwall for a more at each endwall for a more efficient bracing pattern. efficient bracing pattern.

slide-20
SLIDE 20

Typical Rod Bracing Location Typical Rod Bracing Location

20 20

slide-21
SLIDE 21

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

Standard Standard Bracing Bracing Methods Methods

21 21

slide-22
SLIDE 22

Diagonal Bracing Diagonal Bracing Diagonal Bracing Diagonal Bracing

  • VP standard bracing utilizes Diagonal

VP standard bracing utilizes Diagonal Bracing in the Roof and Walls. Bracing in the Roof and Walls.

  • The bracing design is determined by:

The bracing design is determined by:

  • Building Loads & Code

Building Loads & Code

  • Building Size

Building Size

  • Building Location

Building Location

22 22

slide-23
SLIDE 23

Diagonal Rod Bracing Diagonal Rod Bracing Diagonal Rod Bracing Diagonal Rod Bracing

  • Stiffest bracing system available

Stiffest bracing system available

  • Most economical bracing system

Most economical bracing system

23 23

Eave Floor

Notes about Diagonal Rod Bracing:

slide-24
SLIDE 24

Diagonal Rods Diagonal Rods

24 24

slide-25
SLIDE 25

Diagonal Rods Diagonal Rods

25 25

slide-26
SLIDE 26

Diagonal Bracing Options Diagonal Bracing Options (Rods) (Rods) Diagonal Bracing Options Diagonal Bracing Options (Rods) (Rods)

26 26

Eave Floor

slide-27
SLIDE 27

Alternate Diagonal Bracing Alternate Diagonal Bracing

27 27

slide-28
SLIDE 28

Rod Brace Assembly Rod Brace Assembly

28 28

slide-29
SLIDE 29

Coupling Nuts Coupling Nuts

29 29

slide-30
SLIDE 30

Angle Bracing Angle Bracing

  • Bracing may be single rods or

Bracing may be single rods or angles depending upon angles depending upon loading/design loading/design

30 30

slide-31
SLIDE 31

Angle Bracing Angle Bracing

31 31

slide-32
SLIDE 32

Angle Bracing Angle Bracing

32 32

slide-33
SLIDE 33

Angle Bracing Angle Bracing

33 33

slide-34
SLIDE 34

Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems Wind Bracing Systems

Alternative Alternative Bracing Bracing Methods Methods

34 34

slide-35
SLIDE 35

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

Torsional Bracing Torsional Bracing

35 35

Rods are omitted from one sidewall.

slide-36
SLIDE 36

Torsional Bracing Torsional Bracing

36 36

slide-37
SLIDE 37

No Torsional Allowed if… No Torsional Allowed if…

37 37

slide-38
SLIDE 38

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

  • Inexpensive

Inexpensive

  • Maximum building width of 50’

Maximum building width of 50’

  • Maximum eave height of 18’

Maximum eave height of 18’

  • 100 mph maximum wind speed

100 mph maximum wind speed

  • Minimum 3 bays

Minimum 3 bays

  • Call your Service Center if

Call your Service Center if close close to these to these parameters parameters

38 38

Notes About Torsional Bracing

slide-39
SLIDE 39

Rod Brace to Floor Rod Brace to Floor

39 39

slide-40
SLIDE 40

Rod Mark Numbers Rod Mark Numbers

40 40

slide-41
SLIDE 41

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

  • Portal Beam

Portal Beam

  • Knee Braces

Knee Braces

  • Additional column

Additional column support support

41 41

Portal Bracing

Portal Brace Includes:

slide-42
SLIDE 42

Portal Bracing Portal Bracing

42 42

slide-43
SLIDE 43

Portal Bracing Portal Bracing

43 43

slide-44
SLIDE 44

44 44

Bracing Bracing

New Bracing Option New Bracing Option

  • Fixed Base Wind Post (with

Fixed Base Wind Post (with automated Wind Post Base automated Wind Post Base Plate Design) Plate Design)

  • Use at sidewalls or endwalls

Use at sidewalls or endwalls

  • 35’

35’-

  • 0” max. eave height

0” max. eave height

  • Max. 24” column depth
  • Max. 24” column depth
  • Connection at main frame is

Connection at main frame is similar to that of portal frame similar to that of portal frame

44

Bracing Bracing-

  • Wind Posts

Wind Posts

slide-45
SLIDE 45

Post and Beam Stability Post and Beam Stability

  • Automated diaphragm check

Automated diaphragm check

  • If fails Rods may automatically be

If fails Rods may automatically be designed designed

  • Initially at interior bay

Initially at interior bay

  • Then at

Then at endbay endbay

45 45

slide-46
SLIDE 46

Post and Beam Stability Post and Beam Stability

46 46

slide-47
SLIDE 47

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

  • More expensive than rod

More expensive than rod

  • Flexible, not as stiff as diagonal

Flexible, not as stiff as diagonal bracing bracing

  • Maximum eave height of 20’

Maximum eave height of 20’

  • Special clearances possible

Special clearances possible

47 47

Notes About Portal Bracing

slide-48
SLIDE 48

Portal Bracing Portal Bracing

48 48

slide-49
SLIDE 49

Portal Bracing Portal Bracing

49 49

slide-50
SLIDE 50

Portal Bracing??? Portal Bracing???

50 50

slide-51
SLIDE 51

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

  • Portal Frame Beam

Portal Frame Beam

  • Portal Frame Columns

Portal Frame Columns

  • Load Transfer Clips

Load Transfer Clips

  • Bolts and Nuts

Bolts and Nuts

51 51

Portal Frame Includes:

Portal Frames

slide-52
SLIDE 52

Portal Frame Portal Frame

52 52

slide-53
SLIDE 53

Portal Frame (1/ 2” offset) Portal Frame (1/ 2” offset)

53 53

slide-54
SLIDE 54

Portal Frame Portal Frame

54 54

slide-55
SLIDE 55

Portal Frame Portal Frame

55 55

slide-56
SLIDE 56

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

  • More expensive than rods

More expensive than rods

  • Relatively stiff

Relatively stiff (can hold drift on frame)

(can hold drift on frame)

  • Special clearances possible

Special clearances possible

(Hold column & rafter depths) (Hold column & rafter depths)

56 56

Notes About Portal Frames

slide-57
SLIDE 57

Portal Frame

57 57

slide-58
SLIDE 58

Portal Frame Portal Frame

(typical Anchor Rod Detail) (typical Anchor Rod Detail)

58 58

slide-59
SLIDE 59

Combination of Rods and Portal Frame

  • May be more for building heights

May be more for building heights above 20’ tall. above 20’ tall.

59 59

Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods Alternative Bracing Methods

Eave Floor

slide-60
SLIDE 60

Partial Height Portal Frame Partial Height Portal Frame

60 60

slide-61
SLIDE 61

Bracing Comparisons Bracing Comparisons

(Building Size = 200 x 300 x 19, I BC, 85 MPH (Building Size = 200 x 300 x 19, I BC, 85 MPH Wind Wind -

  • Book Price Shown)

Book Price Shown)

61 61

$0 $1,000 $2,000 $3,000 $4,000 $5,000 $6,000 $7,000 $8,000 Bracing Type Rods Portal Brace Portal Frame

slide-62
SLIDE 62

Strut Bracing at Wall Strut Bracing at Wall

62 62

slide-63
SLIDE 63

Tube Strut Tube Strut

63 63

slide-64
SLIDE 64

Rod Bracing at Truss Frame Rod Bracing at Truss Frame

64 64

slide-65
SLIDE 65

Rod Bracing at Truss Frame Rod Bracing at Truss Frame

65 65

slide-66
SLIDE 66

Rod Bracing at Facade Rod Bracing at Facade

66 66

slide-67
SLIDE 67

No Bracing?!?!?! No Bracing?!?!?! No Bracing?!?!?! No Bracing?!?!?!

67 67

  • As erection proceeds all Brace Rods,

As erection proceeds all Brace Rods, Flange Braces, Struts, Purlin/Girt Laps Flange Braces, Struts, Purlin/Girt Laps should be installed before proceeding. should be installed before proceeding.

  • All buildings will require some

All buildings will require some temporary bracing until all erection is temporary bracing until all erection is complete ! complete ! Do NOT take any chances ! Do NOT take any chances !

slide-68
SLIDE 68

68 68

slide-69
SLIDE 69

69 69

slide-70
SLIDE 70

What Wind Can Do! What Wind Can Do!

70 70

slide-71
SLIDE 71

Bracing Tips Bracing Tips

  • Bracing most effective at

Bracing most effective at 45 degree

45 degree

angle angle

  • Diagonal bracing

Diagonal bracing always most

always most economical economical

  • Consider

Consider I nterior Column Bracing

I nterior Column Bracing

at wide buildings at wide buildings

  • Consider “

Consider “shear walls

shear walls” with masonry,

” with masonry, etc. etc.

71 71

slide-72
SLIDE 72

72 72