Abstract:
Based on the limit analysis viewpoint, a formula that could be used to estimate the out-of-plane limit moment of welded branch pipe tee was derived in this paper. Its correctness and reasonableness were borne out by the experimental results. Compared with the ASME and Billington methods, the new formula has a high accuracy in calculating the limit bending of equal-strength tee under the condition of
t/
T≤1.0,
d/
D > 0.5 and 80≥
D/
T≥20. It will bring forth a great value by applying this formula in engineering.