Corrugated plates



Purpose of calculation
Calculation of section properties of Corrugated Plates
This calculation sheet is a combination of various formulas from books as noted. The SANS code used is similar to British standards.It is recommended that profile to be drawn in CAD to determine correct dimensions when critical working limits are encountered.
Strengths of Material (V Elliot)
Southern African Steel Construction Handbook (Table 13.7)
SANS 0162-2: 1993. The structural uses of steel Part 2: Limit states design of cold formed steelworks
Corrugation properties is checked by modelling profile with Solid Edge V20 & physical properties function.

Calculation Reference
Strengths of Material Elliot
Southern African Steel Construction Handbook
Limit states design of cold formed steelworks

Corrugated plates, commonly used in construction and engineering, have a wavy pattern that increases their stiffness and load-bearing capacity. Calculating the section properties of corrugated plates can be complex due to their geometry. However, here is a general approach to estimate the section properties:

  1. Simplify the corrugated profile: Divide the corrugated profile into a series of flat or curved segments to simplify the calculations. For example, you can approximate the profile as a series of trapezoids and/or triangles.

  2. Calculate the area (A) and centroid (C) of each segment: For each segment, calculate its area and centroid. For example, the area of a trapezoid can be calculated using:

A = (1/2) * (b1 + b2) * h

Where b1 and b2 are the lengths of the parallel sides, and h is the height.

  1. Determine the overall area (A_total) and centroid (C_total) of the corrugated profile: Sum the areas of all segments to find the total area. To find the overall centroid, use the formula:

C_total = (Σ(Ai * Ci)) / A_total

Where Ai is the area of each segment and Ci is the centroid of each segment.

  1. Calculate the moment of inertia (I) for each segment about the centroidal axis: For each segment, calculate the moment of inertia about the centroidal axis. For example, the moment of inertia of a trapezoid about its centroidal axis can be calculated using:

Ix = (1/12) * (b1 + b2) * h^3 / (b1 + b2)

  1. Determine the overall moment of inertia (I_total) of the corrugated profile using the parallel axis theorem: The parallel axis theorem states that the moment of inertia of a shape about an axis parallel to and at a distance d from the centroidal axis can be calculated using:

I_total = Σ(Ii + Ai * di^2)

Where Ii is the moment of inertia of each segment about its centroidal axis, Ai is the area of each segment, and di is the distance between the centroid of each segment and the overall centroid.

By following these steps, you can estimate the section properties of corrugated plates. Note that this is an approximation, and for more accurate results, you may need to use specialized software or numerical methods, such as the finite element method.

Calculation Preview

12 Nov 2009
Last Modified
28 Apr 2023
File Size:
360.50 Kb
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File Author:
Dirk Kruger

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Comments: 9
JohnDoyle[Admin] 1 year ago
You need an XLC Pro subscription to download.
acastro06 1 year ago
can someone provide me access to a copy?
JohnDoyle[Admin] 9 years ago
Rhammo I extended your XLC Pro subscription by one month by way of thanks.
JohnDoyle[Admin] 9 years ago
Thank you Rhammo for reporting this. I have added a note on the download page that the XLC Add-in is required.
Rhammo 9 years ago
hello again, fixed error by installing XLC ribbon. It was the =EQS command that was not recognised.
Rhammo 9 years ago
Hello, 1 am getting #NAME? error in cells E31 to E74. Indicated as 'Formula contains unrecognised text'. How do I fix this?Thanks.
JohnDoyle[Admin] 10 years ago
You need to have an XLC Pro subscription to download this file.
maheshbandham 10 years ago
Iam not able to download your corrugated steel sheet
dirkels 14 years ago
Thanks Dirk I have extended your subscription by three month by way of thanks.