Analysis of 2D Beam Structure Using the Matrix Method Using the PTC Mathcad and SAP2000 Applications Article Sidebar Published: Jun 30, 2024 DOI: https://doi.org/10.37253/jcep.v5i1.9208 Keywords: Struktur Balok, Matriks kekakuan, PTC Mathcad, SAP2000 Main Article Content | Synapse