主梁
... glued laminated timber structure 层板胶合结构 Grider 主梁 grip 夹具 ...
△以计算机优化设计的箱形梁作为主承载梁。
Therefore for crane Grider and crossbeam, have met new problem that how to calculate internal force of the beam while meeting the wide bearing.因而对轨道梁或横梁而言,就遇到了宽支座时梁内力如何计算的新问题。
In view of gate design in commonly adopt design method of plane system, the width of miter gate plate which participative working of the Grider or beam is analyzed.针对闸门设计中常用的平面体系计算方法,分析了人字门钢面板参加主(次)梁工作的有效宽度。