沙湖旅游区候船大厅钢网架设计

DESIGN OF SECTION STEEL LATTICED FRAME OF WAITING HALL IN SHAHU TOURIST ZONE

介绍了宁夏沙湖旅游区候船大厅空间异型钢网架结构计算机建模的关键技术问题。提出了采用AUTO CAD软件对异型网架用等高线建立空间曲面分析模型 ,所建立的模型空间曲面光滑 ,杆件及节点定位尺寸精确 ,外形美观 ,与建筑效果图完全吻合。网架节点采用螺栓球节点 ,减少现场焊接作业 ,网架支座选用单面弧形压力支座 ,减小了由网架挠度和温度而产生的附加应力。

The key technique of mode lling for a section steel latticed frame is discussed in detail,and t he method of forming a curved surf ace by contour lines in AUTOCAD is put forward.The model surface whic h is established by contour lines is smooth.And the members and node s have accurate locations,so the m odel conforms to the architecture picture perfectly.The nodes of bol t are applied to reduced welding op eration at work site.A seat of sin gle arc face is used in this proje ct to reduce additional stress of the shells caused by its deflectio n and change of temperature.