【摘要】 根据板壳和圆柱壳体理论 ,以及焊接收缩力模型 ,推出圆柱壳体类构件环缝焊接残余应力的计算公式 .用所导出的公式 ,对三峡水电站引水压力钢管环缝焊接残余应力作了计算 ,其计算结果与有关权威资料计算、测试结果吻合 .本计算结果为分析三峡引水压力钢管焊接残余应力的影响 ,以及焊接工艺设计 ,提供了理论参考 .更多还原

【Abstract】 According to the theory of plate shells and the welding contraction model, the calculation formulas of the cylinder shell’s welded residual stresses are derived. Using these formulas, the welded residual stresses of the water delivery penstocks are computed. The calculated results provide the theoretical consult for analysing affects of welded residual stresses and designing welding technology of the Three Gorges Project’s water delivery penstocks.更多还原