## Number of Bolts Solution

STEP 0: Pre-Calculation Summary
Formula Used
Number of Bolts = (pi*Mean Diameter of Skirt)/600
n = (pi*Dsk)/600
This formula uses 1 Constants, 2 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Number of Bolts - Number of Bolts is simply defined as the number of bolts that are under our consideration.
Mean Diameter of Skirt - (Measured in Millimeter) - Mean Diameter of Skirt in a vessel will depend on the size and design of the vessel.
STEP 1: Convert Input(s) to Base Unit
Mean Diameter of Skirt: 601.2 Millimeter --> 601.2 Millimeter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
n = (pi*Dsk)/600 --> (pi*601.2)/600
Evaluating ... ...
n = 3.14787583889697
STEP 3: Convert Result to Output's Unit
3.14787583889697 --> No Conversion Required
3.14787583889697 3.147876 <-- Number of Bolts
(Calculation completed in 00.004 seconds)
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## Credits

Created by Heet
Thadomal Shahani Engineering College (Tsec), Mumbai
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National Institute of Technology (NIT), Meghalaya
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## < 14 Design of Anchor Bolt & Bolting Chair Calculators

Maximum Stress in Horizontal Plate fixed at Edges
Maximum Stress in Horizontal Plate fixed at Edges = 0.7*Maximum Pressure on Horizontal Plate*((Length of Horizontal Plate)^(2)/(Thickness of Horizontal Plate)^(2))*((Effective Width of Horizontal Plate)^(4)/((Length of Horizontal Plate)^(4)+(Effective Width of Horizontal Plate))^(4))
Wind Pressure acting on Upper Part of Vessel
Wind Pressure acting on Upper Part of Vessel = Wind Load acting on Upper Part of Vessel/(Coefficient depending on Shape Factor*Coefficient Period of One Cycle of Vibration*Height of Upper Part of Vessel*Outside Diameter of Vessel)
Wind Pressure acting on Lower Part of Vessel
Wind Pressure acting on Lower Part of Vessel = Wind Load acting on Lower Part of Vessel/(Coefficient depending on Shape Factor*Coefficient Period of One Cycle of Vibration*Height of Lower Part of Vessel*Outside Diameter of Vessel)
Height of Lower Part of Vessel
Height of Lower Part of Vessel = Wind Load acting on Lower Part of Vessel/(Coefficient depending on Shape Factor*Coefficient Period of One Cycle of Vibration*Wind Pressure acting on Lower Part of Vessel*Outside Diameter of Vessel)
Height of Upper Part of Vessel
Height of Upper Part of Vessel = Wind Load acting on Upper Part of Vessel/(Coefficient depending on Shape Factor*Coefficient Period of One Cycle of Vibration*Wind Pressure acting on Upper Part of Vessel*Outside Diameter of Vessel)
Diameter of Anchor Bolt Circle
Diameter of Anchor Bolt Circle = ((4*(Total Wind Force acting on Vessel))*(Height of Vessel above Foundation-Clearance between Vessel Bottom and Foundation))/(Number of Brackets*Maximum Compressive Load on Remote Bracket)
Mean Diameter of Skirt in Vessel
Mean Diameter of Skirt = ((4*Maximum Wind Moment)/((pi*(Axial Bending Stress at Base of Vessel)*Thickness of Skirt)))^(0.5)
Maximum Compressive Load on Remote Bracket = Maximum Pressure on Horizontal Plate*(Length of Horizontal Plate*Effective Width of Horizontal Plate)
Load on Each Bolt = Stress in Bearing Plate and Concrete Foundation*(Area of Contact in Bearing Plate and Foundation/Number of Bolts)
Maximum Seismic Moment
Maximum Seismic Moment = ((2/3)*Seismic Coefficient*Total Weight of Vessel*Total Height of Vessel)
Stress due to Internal Pressure
Stress due to Internal Pressure = (Internal Design Pressure*Vessel Diameter)/(2*Shell Thickness)
Cross Sectional Area of Bolt
Cross Sectional Area of Bolt = Load on Each Bolt/Permissible Stress for Bolt Materials
Diameter of Bolt given Cross Sectional Area
Diameter of Bolt = (Cross Sectional Area of Bolt*(4/pi))^(0.5)
Number of Bolts
Number of Bolts = (pi*Mean Diameter of Skirt)/600

## Number of Bolts Formula

Number of Bolts = (pi*Mean Diameter of Skirt)/600
n = (pi*Dsk)/600

## What is Design Basis of Vessel?

The design basis of a vessel is a set of requirements and specifications that outline the design and operating parameters for the vessel. The design basis is established during the early stages of the design process and serves as a reference for the design team to ensure that the vessel will meet the required performance, safety, and environmental standards.

## How to Calculate Number of Bolts?

Number of Bolts calculator uses Number of Bolts = (pi*Mean Diameter of Skirt)/600 to calculate the Number of Bolts, Number of Bolts formula is used to determine the minimum number of bolts required to connect two or more plates or members together. The formula is based on the shear strength of the bolts and the design shear capacity of the connection. Number of Bolts is denoted by n symbol.

How to calculate Number of Bolts using this online calculator? To use this online calculator for Number of Bolts, enter Mean Diameter of Skirt (Dsk) and hit the calculate button. Here is how the Number of Bolts calculation can be explained with given input values -> 0.003148 = (pi*0.6012)/600.

### FAQ

What is Number of Bolts?
Number of Bolts formula is used to determine the minimum number of bolts required to connect two or more plates or members together. The formula is based on the shear strength of the bolts and the design shear capacity of the connection and is represented as n = (pi*Dsk)/600 or Number of Bolts = (pi*Mean Diameter of Skirt)/600. Mean Diameter of Skirt in a vessel will depend on the size and design of the vessel.
How to calculate Number of Bolts?
Number of Bolts formula is used to determine the minimum number of bolts required to connect two or more plates or members together. The formula is based on the shear strength of the bolts and the design shear capacity of the connection is calculated using Number of Bolts = (pi*Mean Diameter of Skirt)/600. To calculate Number of Bolts, you need Mean Diameter of Skirt (Dsk). With our tool, you need to enter the respective value for Mean Diameter of Skirt and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well. Let Others Know