[1]舒赣平,陈尧,张敏,等.焊接π形截面残余应力试验及分布模型[J].东南大学学报(自然科学版),2017,47(3):559-564.[doi:10.3969/j.issn.1001-0505.2017.03.024] 　Shu Ganping,Chen Yao,Zhang Min,et al.Experimental study on residual stress and distribution model in welded π-shaped sections[J].Journal of Southeast University (Natural Science Edition),2017,47(3):559-564.[doi:10.3969/j.issn.1001-0505.2017.03.024] 点击复制 焊接π形截面残余应力试验及分布模型() 分享到： var jiathis_config = { data_track_clickback: true };

47

2017年第3期

559-564

2017-05-20

文章信息/Info

Title:
Experimental study on residual stress and distribution model in welded π-shaped sections

1东南大学土木工程学院, 南京 210096; 2启迪设计集团股份有限公司, 苏州 215021
Author(s):
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Tus-Design Group Co., Ltd., Suzhou 215021, China

Keywords:

TU318;U442
DOI:
10.3969/j.issn.1001-0505.2017.03.024

Abstract:
The residual stresses of 5 specimens were measured by the sectioning method to investigate the residual stress distribution in Q345B steel welded flame-cut π-shaped sections. The effects of the plate width-thickness ratio and interaction among component plates were clarified by measuring the residual stress values of each plate. The results indicate that the compressive residual stress in flange and web correlates with the plate width-thickness ratio. Moreover, the residual stress near the welding is related to the plate thickness but not obvious with the plate width-thickness ratio. The residual stress self-equilibrating within each component plate is satisfied. Finally, a residual stress distribution model and a calculation formulate for predicting the residual stress within welded π-shaped sections with different dimensions are proposed, it provides a valuable reference for further study and application of π-shaped section steel structures.

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