Renovation of an Existing Water Tower into an Office Building
Customer Project
In 1936, a water tower holding 211,000 US gallons was built in Kladno-Rozdělov, Czech Republic. The existing and new supporting steel structure was repurposed as the new VKM a.s. administrative building.
Structural Design |
Ing. Pavel Korejčík Ing. Jan Mařík, Ph.D.
Ing. Jan Seifert KONSTAT s.r.o. |
Model
Water Tower Structure
The steel tower’s upper portion consists of eight main columns arranged in a regular 39 ft diameter octagon also including cross-bracing. In addition, the steel structure incorporates the auxiliary floor beams, a roof, and windows. The steel tank was placed in the area between the columns.
Reconstruction Description
Project Location
U Vodojemu, Kladno-RozdělovKeywords
Water tank tower Reconstruction
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General method for stability designs according to EN 1993-1-1 and buckling in the main bearing plane
In EN 1993-1-1, the General Method was introduced as a design format for stability designs, which can be used for planar systems with any boundary conditions and variable structural height.

SHAPE-THIN | Cold-Formed Sections
SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.
The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.
As an option, you can perform an iterative calculation to optimize the effective cross-section.
You can display the effective cross-sections graphically.
Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.
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