【摘要】 本设计是在弹性范围内应用第一簿膜理论进行推导设计计算 ,即压力所引起的次向薄膜应力按最大主应力理论 (第一强度理论 )将应力控制在许用应力以下 ,设计采用GB15 0 - 98《钢制压力容器》设计规定。对于风载荷 ,分段进行质量折算法近似计算 ;对于地震载荷 ,采用反应谱曲线理论 ,假设塔设备是弹性的但允许塔弹塑性变形 ,取其较薄弱的截面进行应力分析、校核等。取基础环截面 ,裙座上人孔或较大管线引出孔的截面 ,塔体与裙座连接焊缝处的截面进行应力和弯矩的计算、分析和校核。本设计利用计算机辅助设计 (CAD)软件AutoCAD2 0 0 0进行设计并绘制装配图更多还原

【Abstract】 By adopting Membrane Theory I within the elastic limit, this project abides by the requirement in Steel Pressure Container GB150-98,deduces and calculates the secondary membrane stress caused by pressure, keeps stress under allowable stress according to the Principal Stress Theory, It approximately calculates the wind load with mass spectrometry, and seismic load Curved Method Prospecting Theory. Supposing the tower is elastic and allows elastic-plastic deformation,the stress can be measured by calculating the thin cross section.更多还原