Awning of a Filling Station in Douala, Cameroon

Structures Analyzed with Dlubal Software

  • Customer project

Customer Project

The new roofing system for the GULFIN Cameroun oil company's filling station in Douala is a particular structure with eccentric columns and non-symmetric cantilevered 21-foot-long beams.

Design and Structural Analysis CASTI GROUP
Cameroon
Investor GULFIN Cameroun
Cameroon

Model

CASTI GROUP, a Dlubal Software customer based in Cameroon, designed the structure and managed and monitored the construction site.

The engineering team of CASTI GROUP designed the structure according to the Eurocodes in RSTAB and in the STEEL EC3 add-on module.

Structure

The awning covers a surface of 1,399 ft2. The columns are eccentric, connected to a 29.5-foot-long supporting beam. They absorb loads from the transverse beams which support the contour truss. The unbalance produced by the front and back non-symmetric transverse beams is reduced by the varying slopes on each side of the gutter.

The main supporting beam is an HEB 240 cross-section; the columns are HEB 300. Chords from the trusses were designed at first in HEB 120, then improved in HEB 100 with the RF-/STEEL Plasticity add-on module, which allows for the consideration of plastic reserves of a cross-section.

The roof covering is made of translucent polycarbonate panels with a double slope toward the central gutter supported by the main beam.

Both the production and assembly of the roof structure were made by a company specializing in steel construction. The investor opted for this company because of the complex assembly of this awning at a filling station.

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  • Updated 06/04/2021

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Design of steel members according to Eurocode 3

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