Design of Anchor Bolt_Rev.A

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Client Logo CALCULATION SHEET

Project Name: Standardization Project No:

TITLE : Interaction Checks between the Anchor bolt to ConcreteCalc.No : Rev :

Node nos:

1.0.0 Geometry of Base Plate:Base Plate size,

L x B = 450 x 450

Plate thickness, = 40(Note:Plate thikness to be greater/equal of flange thk.)

Grout thickness = 501.0.1 Detail of Structural Member:

Use Column section, UB 152 x 89 x 16Depth of Section h = 152.4 mm

Width of Section = 88.7 mm

Thickness of flange = 7.7 mm

Thickness of web = 4.5 mm

Fillet Weld Size = 10

1.0.2 Anchor Bolt Data:Dia of Bolt d = 56 of Grade 4.6

Tensile area of Bolt = 2030Number of Bolts N = 4Nos of Bolt at each side n = 2Plate edge distance from bolt c = 50

Therefore, a = 88.8 mm

l = 148.8 mm

Width of anchor bolt plate = 140

Thk. of anchor bolt plate = 8

Washer plate thk. of bolt = 8

= 672

= 350

= 230

1.1.0 Strength of Material:

Ultimate Tensile Strength of Bolt = 400

Yield Stress of Anchor Bolt = 240Grade of concrete, = C30

Bond Stress of Concrete = 1.40Grade of Steel, = S355

tp

bw

tfl

tw

sw (along the perimeter of coln. section)

As mm2

aw

tw

ta

Minm embedded length of anchor bolt in concrete h'ef

Distance betw bolts along Z ld,z

Distance betw bolts along X ld,x

fub N/mm2

fyb N/mm2

0.28 x fcy N/mm2

Bending Line

L

45°

c a

l

ld,x

x

z

Mx

Fx

Fz

x

12 x dia of Bolt

(assumed)

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Yield strength of Plate = 345

1.2.0 Calculation of allowable forces:Allowable Shear forces

= (For grade 4.6, 5.6 & 8.8 bolts)

= (For grade 4.8, 5.8, 6.8 & 10.9 bolts)

1.25)Hence, = 389.8 kNAllowable Tension in Anchor Bolt

= = 584.6 kN

1.3.0 Load Data: (Refer STAAD output) - FACTORED LOAD

25 369.75 33.85 59.66 45.47 10.06

22 381.71 80.92 32.72 8.64 67.72

22 381.71 80.92 32.72 8.64 67.72

26 158.08 19.10 23.01 5.80 52.66

24 369.75 59.66 33.85 10.06 45.47

23 381.71 32.72 80.92 67.72 8.64

24 369.75 59.66 33.85 10.06 45.47

23 381.71 32.72 80.92 67.72 8.64

26 158.08 19.10 23.01 5.80 52.66

27 158.08 23.01 19.10 52.66 5.80

22 381.71 80.92 32.72 8.64 67.72

25 369.75 33.85 59.66 45.47 10.06

1.3.1 Check Tension in Anchor Bolt: (as per above load data)

= + ±= max 95.31 kN < 584.6 kN It's SAFE

1.3.2 Combined Check for Both Shear & Tension:

+ ≤ 1.0

fy N/mm2

Fv.Rd

0.6 x fub

x As /

M2

Fv.Rd

0.5 x fub

x As /

M2

(where, mb

= partial safety factor) (m2

=F

v.Rd

Ft.Rd

0.9 x fub

x As /

M2

Descrip-tion

Loadcase

Py

(kN)F

x

(kN)F

z

(kN)M

x

(kNm)M

z

(kNm)

Max Fx

Min Fx

Max Fy

Min Fy

Max Fz

Min Fz

Max Mx

Min Mx

Max My

Min My

Max Mz

Min Mz

Maximum tension in anchor boltM

x / (l

d,z * n) M

z / (l

d,x * n) P

y / N

Fv.Sd

Ft.Sd

Fv.Rd

1.4 Ft.Rd

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= = 87.29 kN& = 95.31 kN

Therefore, +

=87.29

+95.31

= 0.34 ≤ 1.0It's SAFE389.8 1.4 x 585

1.4.0 Check for Basic Anchorage Length:

= =95.31 x 1000

Π x 56 x 1.4

= 387 mm

1.4.1 Check for Prying Forces:

= 981 = 40

=m = 93.8

c' =

= 1220.7742246794 = 128.56 mm

Hence, < Re-check or 1.25 x t

= 50.00 mm

Therefore, =

= 11.13

=

= 188.70 mm

Fv.Sd

Fx2 + F

z2

Ft.Sd

Fv.Sd

Ft.Sd

Fv.Rd

1.4 Ft.Rd

Embedded length in concrete, lb.rqd

Ft.Sd

Π d fb

Lb

t = tp

Lb

*8.8 m3 A

s

Σ leff.1

t3 t fy/(3 f

jd

M0)

Lb

Lb

*

fjd b

j k

j f

cd

Provide Grade 4.6 - 56 dia bolt with min. 672 mm embedment. l

eff 2.c + bw

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Project No:

Interaction Checks between the Anchor bolt to ConcreteA Date: 2/5/2011

value

Color Indicates

for inputs

Ref:

BS EN ISO 898 Part 1

BS EN 1993-1-8:2005

Table 3.1

BS 8110-1:1997

CL 3.12.8.4

Bending Line

B

ld,z

Mz

Fx

z

tw

aw

ta

T.O.C

h'ef

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BS EN 10025

Part 2:2004

Ref:

BS EN 1993-1-8:2005

Table 3.4

BS EN 1993-1-1:2005

CL 6.1, Note 2B

10.06

67.72 indicates tension

67.72 in bolt.

52.66

45.47

8.64

45.47

8.64

52.66

5.80

67.72

10.06

Ref:

BS EN 1993-1-8:2005

Table 3.4

Mz

(kNm)

(-) ve value of Py

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It's SAFE

BS 8110-1:1997

CL 3.12.8.3

Ref:

BS EN 1993-1-8:2005

Table 6.2 &

SCI - 116

= 2/3

= 1

= 16.70

= 1

= 345

(use smaller

value of c')

bj

kj

fcd

M0

fy

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Design of Anchor Bolt_Rev.A

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