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摘 要
本论文论述了单层钢结构厂房的焊接结构设计和焊接工艺的制作，针对跨度为24米的钢结构厂房，结合《钢结构设计手册》、《建筑结构载荷规范》等资料首先选择了结构整体用钢的型号然后进行了钢结构厂房整体平面结构的布置，起重机的型号选取，根据沈阳地区的自然情况对刚架结构进行了设计以及强度校核，选择了合适的柱脚和牛腿以及刚架柱与梁等节点，并且选取合适的柱间支撑和屋顶水平支撑等保证强度的维护体系，参照《GB985.1-2008》和《焊接手册》等资料选择了丝极埋弧焊和二氧化碳气体保护焊的焊接方法进行施工，并设计了坡口形式和尺寸等参数的焊接工艺，还叙述了钢结构厂房的现场施工工艺流程，和施工注意事项。
关键词：钢结构；钢结构厂房；埋弧焊
Abstract
This paper discusses the structural design and welding process of welding of the singlelayer steel structure workshop production,for steel structure workshop of 24 span, first select the model of structural steel as a whole and the overall layout of the planar structure of the steel structure workshop, crane model selection, combined with \\Shenyang, design and strength check of steel-framed structures, and select the appropriate level of support and roof support column ensuring the strength to maintain the system. Reference to \ arc welding and the Carbon dioxide gas shielded arc welding,and design the groove type and the size and other Welding parameters, it also describes the site of the steel plant construction process, and Construction Notes .
Key words: steel structure; steel structure workshop; submerged arc welding
目 录
摘 要 ........................................................................................................................................... I Abstract ...................................................................................................................................... II 1 绪论 ...................................................................................................................................... 1
1.1 课题背景和意义 ........................................................................................................ 1 1.2 国内外研究现状 ........................................................................................................ 2 1.3 本课题的研究内容及方案 ........................................................................................ 3 2 建筑结构布置设计 .............................................................................................................. 4
2.1 建筑平面设计 ............................................................................................................ 4
2.1.1 厂房平面形式的选择 ...................................................................................... 4 2.1.2 柱网的选择 ...................................................................................................... 4 2.1.3 屋面维护体系选择 .......................................................................................... 5 2.1.4 定位轴线的确定 .............................................................................................. 5 2.2 建筑剖面设计 ............................................................................................................ 5
2.2.1 柱顶标高的确定 .............................................................................................. 5 2.2.2 屋脊高度确定 .................................................................................................. 7 2.2.3 刚架结构形式的确定 ...................................................................................... 7
3 刚架内力计算 ...................................................................................................................... 8
3.1 刚架截面尺寸的确定 ................................................................................................ 8 3.2 材料的选择 ................................................................................................................ 9 3.3 计算 .......................................................................................................................... 10
3.3.1 恒荷载标准值（对水平投影面） ................................................................ 10 3.3.2 活荷载标准值 ................................................................................................ 10
3.3.3 屋面荷载值 .................................................................................................... 10 3.3.4 风荷载标准值 ................................................................................................ 10 3.3.5 恒载作用内力计算 ........................................................................................ 12 3.3.6 活载作用 ........................................................................................................ 14 3.3.7 风荷载作用 .................................................................................................... 15 3.3.8 起重机荷载作用 ............................................................................................ 22
4 刚架强度验算 .................................................................................................................... 28
4.1 梁柱截面宽厚比验算 .............................................................................................. 28 4.2 梁的验算 .................................................................................................................. 28
4.2.1 抗剪验算 ........................................................................................................ 28 4.2.2 弯、剪、压共同作用下的验算 .................................................................... 29 4.3 柱的验算 .................................................................................................................. 29
4.3.1 抗剪验算 ........................................................................................................ 29 4.3.2 弯、剪、压共同作用下的验算 .................................................................... 29 4.3.3 整体稳定性的验算 ........................................................................................ 29
5 牛腿尺寸确定及验算 ........................................................................................................ 32
5.1 牛腿尺寸 .................................................................................................................. 32 5.2 验算 .......................................................................................................................... 32 6 焊接工艺 ............................................................................................................................ 34
6.1 材料焊接性分析 ...................................................................................................... 34 6.2 焊接工艺的制定 ...................................................................................................... 34
6.2.1 焊接方法的选择 ............................................................................................ 34 6.2.2 焊接材料的选择 ............................................................................................ 35 6.2.3 坡口形式及尺寸的选择 ................................................................................ 35 6.2.4 焊接参数的选择 ............................................................................................ 35 6.2.5 焊接防止变形及矫正措施 ............................................................................ 36 6.2.6 焊缝检测 ........................................................................................................ 36 6.2.7 焊缝缺陷的补救 ............................................................................................ 37 6.3 施工流程 .................................................................................................................. 37
6.3.1 下料切割 ........................................................................................................ 37
6.3.2 钢结构的焊接 ................................................................................................ 37 6.3.3 除锈及涂装 .................................................................................................... 38 6.3.4 钢结构的安装 ................................................................................................ 38
结论 .......................................................................................................................................... 40 致谢 .......................................................................................................................................... 41 参考文献 .................................................................................................................................. 42 附录A ：英文原文 ................................................................................................................ 43 附录B：中文翻译 .................................................................................................................. 51 附录C：焊接工艺卡 .............................................................................................................. 57
钢结构厂房毕业设计论文
