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Anchor Bolt Calculation

This document contains calculations to check the adequacy of anchor bolts for supporting two structures. Input parameters such as bolt material, diameter, number of bolts, and expected loads are provided. Factored tensile and shear forces per bolt are determined. Stress calculations are performed to check if the bolt stresses satisfy allowable values. It is concluded that the anchor bolts are adequate for both structures as the combined stress ratios are below 1.

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Naresh Kumar
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676 views2 pages

Anchor Bolt Calculation

This document contains calculations to check the adequacy of anchor bolts for supporting two structures. Input parameters such as bolt material, diameter, number of bolts, and expected loads are provided. Factored tensile and shear forces per bolt are determined. Stress calculations are performed to check if the bolt stresses satisfy allowable values. It is concluded that the anchor bolts are adequate for both structures as the combined stress ratios are below 1.

Uploaded by

Naresh Kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Page No.

Date
Revision
Document No.
Tag No.
TITLE : ANCHOR BOLT DESIGN CALCULATION

SEPARATOR
INPUTS
Notation

Ab
N

Description
Material of anchor bolt used
Diameter of bolt
Root area per bolt
Number of bolts

Vc

Minimum compressive force in Y direction on support(Dead weight of


skid)

:
:
:
:
:

Value
A307
20
245
6

OF
2
10-10-13

Unit
mm
mm2

20000

kg

Overturning Moment

8356

kgm

Vt

Maximum tensile force in Y direction on support ( M/(0.5*hole


centres)

8623

kg

Vs

Maximum shear force on support in XZ plane

6725

kg

ft
fs

Allowable tensile stress of bolt (Refer AISC table J3.2)


Allowable shear stress of bolt (Refer AISC table J3.2)

165
82.5

MPa
MPa

Value
-18582.24286
10984.82

Unit
N
N

DETERMINE THE FACTORED SHEAR AND TENSION PER BOLT


Description
Formula
Notation
=(Vt-Vc)*9.8/N
Vt'
Tensile force acting per bolt
=(Vs*9.8/N)
Vs'
Shear force acting per bolt

BOLT STRESS CHECK


Description
Formula
Notation
=V't/Ab
Ft
Tensile stress acting per bolt
=V's/Ab
Fs
Shear stress acting per bolt
=Ft/ft+Fs/fs
Combined stress ratio
As combined stress ratio is below 1 so anchor bolt is OK

Value
0
44.84
0.54

Unit
MPa
MPa

Page No.
Date
Revision
Document No.
Tag No.
TITLE : ANCHOR BOLT DESIGN CALCULATION

SURGE TANK
INPUTS
Notation

Ab
N

Description
Material of anchor bolt used
Diameter of bolt
Root area per bolt
Number of bolts

:
:
:
:
:

Value
A307
20
245
6

OF
2
10-10-13

Unit
mm
mm2

Vc

Minimum compressive force in Y direction on support (Dead weight of


skid)

16500

kg

Overturning Moment

17934

kgm

Vt

Maximum tensile force in Y direction on support ( M/0.5*hole centres)

9254

kg

Vs

Maximum shear force on support in XZ plane

9069

kg

ft
fs

Allowable tensile stress of bolt (Refer AISC table J3.2)


Allowable shear stress of bolt (Refer AISC table J3.2)

165
82.5

MPa
MPa

Value
-11835.0086
14812.86333

Unit
N
N

Value
0.0000
60.4607
0.7329

Unit
MPa
MPa

DETERMINE THE FACTORED SHEAR AND TENSION PER BOLT


Description
Formula
Notation
=(Vt-Vc)*9.8/N
Vt'
Tensile force acting per bolt
=(Vs*9.8/N)
Vs'
Shear force acting per bolt

BOLT STRESS CHECK


Description
Formula
Notation
=V't/Ab
Ft
Tensile stress acting per bolt
=V's/Ab
Fs
Shear stress acting per bolt
=Ft/ft+Fs/fs
Combined stress ratio
As combined stress ratio is below 1 so anchor bolt is OK

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