Spun concrete pole design
Design tapered spun reinforced-concrete poles end to end in your browser, powered by the fiber section engine. Capacity is checked at stations along the pole under different loads, the pole is sized to the TEDAŞ safety factor, and the reinforcement and stirrup zones are optimized in one click. The load-deflection curve of the TS EN 12843 bending test is predicted up front. A detailed PDF report is produced, and concrete and steel takeoffs plus fabrication detail drawings are generated ready for production.
Automatic design at stations
Required-capacity calculation, automatic design and existing-reinforcement checks at every level of the tapered pole.
Zone-based optimization
Set the longitudinal and stirrup zones independently for buildability and economy. Rebar laps and cuts are determined automatically. Diameter and zone suggestions that keep cutting waste to a minimum are presented on a chart.
Design to the TEDAŞ safety factor
The TEDAŞ safety factors for the product class (poles rated 2.00 or 2.21) are applied together with the TS500 rules, and whichever governs is the one the design is built to. The factor is reported as the breaking tip force divided by the nominal tip force.
Bending test simulation
The load-deflection curve of the TS EN 12843 bending test is computed on your as-built reinforcement, together with the cracking, yield and breaking points. Deflections measured on the shop floor can be plotted on the same chart and compared against the prediction.
Single- or double-wrap spiral stirrups
Use single- or double-wrap spiral stirrups at any pitch for buildability and increased shear/torsion capacity.
Detailed steel & concrete takeoff
Automatic bar-marking with a detailed reinforcement takeoff and the total concrete volume.
Fabrication drawing & work order
Pole elevation, developed reinforcement layouts, section drawings and a takeoff table are laid out on a print-ready sheet as a fabrication form, generated automatically. Downloadable as DXF.
Formula- and code-referenced reports
Design checks are shown with explicit formulas and code references — in the interface, in the PDF report and in the calculation's digital publication — making verification and review easy.
Questions
- What is a spun concrete pole?
- A spun (centrifugally cast) concrete pole is a structural column made by spinning high-quality concrete and steel reinforcement in a mould at high speed, so centrifugal force compacts it. The result is a hollow, circular section with an extremely smooth, durable outer surface. Spinning drives out voids and excess water, giving the pole high compressive strength and excellent resistance to the elements. Spun poles are widely used in electricity transmission and distribution lines (LV/MV), lighting systems and power lines. StructuralMind automatically prepares the design, calculation reports and detail drawings for these poles.
- What does reinforcement and stirrup zone optimization achieve?
- Because the pole is tapered, using a single layout with the same bar count and diameter along the whole pole is uneconomical — and the bars may not fit the section as it narrows toward the top. Reinforcement and stirrup demand also differ along the pole. So StructuralMind computes the required capacity at stations using the real section, but keeps constant, symmetric reinforcement and stirrups within the zones you define and computes laps automatically. Where lengths exceed a bar's cut length, cuts and laps are added automatically. This balances buildability and economy to reach the optimum solution.
- Do I get a fabrication drawing?
- Yes. The pole elevation, developed reinforcement layouts, section drawings and takeoff table are laid out on a print-ready sheet as a fabrication form, generated automatically. It can be downloaded as DXF.
- Will my pole pass the TEDAŞ bending test?
- The bending test is a physical batch-acceptance test and no calculation replaces it. StructuralMind shows you where you stand before the rig. It computes the safety factor defined in TEDAŞ-MLZ/99-34 clause 2.12, the breaking tip force divided by the nominal tip force, and sizes the design to the target you select. It also predicts the load-deflection curve of the TS EN 12843 clause 5.5.2 bending test, so deflections you measure can be entered and compared against it. The simulation issues no acceptance verdict; it lets you read what the test will show, in advance.
- What does zone optimization actually optimize?
- Both of the costs you pay: the steel you buy and the labour. The required reinforcement envelope varies continuously along the pole, while the shop produces zones of constant reinforcement. The tool computes the lightest layout for every zone count, puts the candidate diameters side by side, and prices how the bars will be cut from 12 m stock, because a layout with a lower theoretical takeoff can cost more once offcuts are counted. The recommendation points at the lightest layout, breaking ties on the fewest zones, and the whole zone-count-to-steel curve stays on screen so the final call is yours.
- Is this calculation free?
- Spun Concrete Pole Design is a premium calculation included in the Engineer plan. You can try it free.
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