Get your everydaydiaphragm and shear-wall calculations done in minutes, with documentation a reviewer accepts the first time.
Set up the diaphragm or shear wall with its openings and loads. PolyStringer finds the optimal plastic solution and helps you determine the necessary reinforcement. The documentation is a short PDF a reviewer can follow. PolyStruc runs every day at COWI, Artelia, Sweco, AFRY and NIRAS, and at 900+ universities.
When distributing lateral loads to stabilizing walls, the diaphragm has to be checked too. Multi-storey precast buildings often have fewer walls on the ground floor, for a shop front or parking, meaning more load redistribution in the diaphragm. PolyStringer models the diaphragm with openings and verifies the load path. .
Shear walls with large openings are hard to model by hand, and usually mean reaching for full FE software. The ShearWall module is a small, simple tool that builds the model straight from the wall’s actual geometry, places the stringers automatically, and works out whether anchoring is needed.
PolyStringer solves diaphragms and shear walls using the stringer method (). The model is statically indeterminate, so many solutions exist. PolyStringer automatically finds the one that requires the least reinforcement, the optimal plastic solution (). You can still deviate from that initial solution, harnessing the plasticity to redistribute forces where needed.
PolyStringer finds the internal forces and determines the longitudinal and shear reinforcement needed. A ductility check keeps the plastic redistribution within safe limits. For hollow-core slabs, you can skip shear reinforcement and check the maximum shear stress instead.
PolyStringer’s report is short and precise: inputs, diagrams, and results up front. One click to generate, with your own logo.
PolyStringer is desktop software using the stringer method for concrete diaphragms and shear walls, and any other 2D stringer problem.
PolyWind determines the wind load according to EN 1991-1-4, automatically selecting the Danish or Swedish national annex from the site’s address.
Based on terrain data within 1 and 2 km of the site, PolyWind determines terrain category and orography automatically, per 30° angle sector.
Not with complete certainty, but the accuracy is high. Every sector can still be checked and overridden by hand, so the final decision stays with the engineer.
Yes, for the most common Eurocode building types, with Cpe,1 for local details and Cpe,10 for the main structure, following the ±45° sector logic of EN 1991-1-4 Figure 4.1.
PolyWind is kept up to date with Eurocode, and is being prepared for the second generation as it is introduced.
Anyone can create a free starter account, limited to a set of specific addresses. Students get full access to every feature for free with a student email, already used at 900+ universities worldwide.
Design steel-, timber frames using PolyFrame.
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