面内弯矩下焊制管道三通的塑性极限载荷

摘要

The limit load calculation of welding piping tees under the action of the in-plane bending moment wasderived based on the limit analysis.The cmparison between the test data and Bilington experiential formula and ASME ccode shows that the formula was more accurate to the limit value in the in-plane bending moment,and was very suitable for engineering application%基于极限分析的观点，推导了工业中焊制三通在面内弯矩作用下的极限载荷估算式。通过试验数据验证和与基于ASME规范及Billington的经验公式比较表明，该公式对面内弯矩极限值有较高的估算精度，具有较大的工程应用价值。