structures line icons collection. architectural, framework, foundations, interlocking, stability, skyscrapers

vector icon line sign architectural framework foundations interlocking stability skyscrapers engineering bridges support design strength steel durability aesthetics materials construction beams trusses loadbearing capacity reinforcement heights tension compression formidable torsion symmetry minimalist complex welding stressresistant rigid cantilever arch roofs girders lattice masonry timber prefabricated prefab postandbeam geodesic shell