目 录 1、设计资料 ............................................. 0 1.1 结构形式 .......................................................................................................................... 1 1.2 屋架形式及选材 .............................................................................................................. 1 1.3 荷载标准值（水平投影面计） ...................................................................................... 1 2、支撑布置 ............................................. 2 2.1 桁架形式及几何尺寸布置 .............................................................................................. 2 2.2 桁架支撑布置如图 ........................................................................................................... 2 3、荷载计算 ............................................. 4 4、内力计算 ............................................. 5 5、杆件设计 .............................................. 8 5.1 上弦杆 ............................................................................................................................... 8 5.2 下弦杆 ............................................................................................................................... 9 5.3 端斜杆AB ......................................................................................................................... 9 5.4 腹杆 ................................................................................................................................. 11 5.5 竖杆 ............................................................................................................................... 16 5.6 其余各杆件的截面 ........................................................................................................ 16 6、节点设计 ............................................. 20 6.1 下弦节点“C” .........................................................................
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