加油站钢结构设计计算书网架结构.doc

目录 目录··································································Ⅰ 摘要及关键词···························································1 Abstract and Keywords····················································2 前言····································································3 1、结构设计基本资料························································4 1.1 工程概况···························································4 1.2 设计基本条件·······················································4 1.3 本次毕业设计主要内容··············································6 2、结构选型与初步设计······················································7 2.1 设计资料····························································7 2.2 网架形式及几何尺寸·················································7 2.3 网架结构上的作用··················································9 2.3.1静荷载························································9 2.3.2活荷载························································9 2.3.3地震作用······················································10 2.3.4荷载组合······················································10 3、结构设计与验算··························································11 3.1 檩条设计···························································11 3.2 网架内力计算与截面选择···········································18 3.3 网架结构的杆件验算················································20 3.3.1 上弦杆验算····················································20 3.3.2 下弦杆验算····················································21 3.3.3 腹杆验算······················································23 3.4 焊接球节点设计·····················································24 3.5 柱脚设计····························································27 3.6 钢柱设计与验算·····················································29 3.7钢筋混凝土独立基础设计············································32 3.8网架变形验算·······················································39 结束语···········································································41 参考文献············