作者: Arthur Kohler
DOI:
关键词: Beam (structure) 、 Structural engineering 、 Load bearing 、 Engineering 、 Base (geometry)
摘要: Methods and systems for stairways or other walkways supported at only one end provide a plurality of stair treads are attached to support beam, pair mounting brackets disposed either side beam bottom rotatably connected the by pivot bolt, base, base load bearing structure. A bolt is through below surface beam. Locking means pivotally engage plate restrain stairway from least pivoting upward about downward bolt. Operative loads transfer into