钢结构课程设计学生姓名： 指导老师：刘 文 洋所在学院：工程学院专 业：土木工程中国·大庆2025 年 1 月目 录1 设计资料.....................................................................................................................................12 屋架尺寸 支撑布置...................................................................................................................13 荷载 内力计算及内力组合.......................................................................................................13.1 永久荷载..........................................................................................................................13.2 屋架受荷水平投影面积..................................................................................................23.3 上弦节点集中荷载的设计值..........................................................................................23.4 内力计算..........................................................................................................................23.4.1 计算杆件系数.......................................................................................................24 杆件截面选择.............................................................................................................................34.1 上弦..................................................................................................................................34.2 下弦..................................................................................................................................34.3斜腹杆............................................................................................................................45 节点设计......................................................................................................................................55.1 下弦节点“2”................................................................................................................55....
