A 2D structural frame/truss analysis with the full ASCE 7-22 load-combination sweep.
A 2D structural frame/truss analysis with the full ASCE 7-22 load-combination sweep. Define nodes, members (E/A/I), supports, and nodal loads TAGGED by load case (Dead, Live, Roof-Live, Snow, Wind, Seismic, Rain); it assembles the global stiffness matrix, solves K u = F by Gaussian elimination with partial pivoting for every LRFD (section 2.3) and ASD (section 2.4) combination, and reports the governing displacement plus the per-member axial/shear/moment ENVELOPE with the combination that governs each, and an Euler buckling demand/capacity for compression members. The solver is anchored to the closed forms (cantilever P L^3/3EI, simply-supported P L^3/48EI, axial P L/EA) and its solution residual sets the trust verdict. Honest scope: 2D first-order linear-elastic analysis (no P-delta, inelasticity, connection flexibility, or out-of-plane), and the seismic combos use the nominal E you enter (the 1.2+0.2 SDS split / overstrength are not auto-applied). A design-aid bridge to ETABS/SAP2000/RISA, not a stamped analysis. Deterministic, in-browser, no API/key/network/AI.
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