首页|双耳板焊接空心球节点轴拉承载力研究

双耳板焊接空心球节点轴拉承载力研究

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为揭示双耳板焊接空心球节点受拉破坏机理,并建立其受拉承载力计算公式.针对8个双耳板焊接空心球节点进行轴心受拉极限承载力试验,并采用ABAQUS有限元分析软件对节点进行参数化数值分析,讨论节点几何尺寸对其承载力的影响.研究结果表明,在轴向拉力作用下,双耳板焊接空心球节点破坏形式为空心球开裂破坏,耳板与空心球连接处焊缝失效,且个别试件出现球面局部起皮.提出了适用于球外径在160~500 mm的双耳板焊接空心球节点的受拉承载力计算参考公式,研究成果可为类似工程设计提供参考.
STUDY ON AXIAL TENSILE BEARING CAPACITY OF DOUBLE-EAR PLATE WELDED HOLLOW SPHERE JOINTS
To reveal the tensile failure mechanism of double-ear plate welded hollow sphere joints and establish a calculation formula for their tensile bearing capacity,axial tensile ultimate bearing capacity tests were conducted on eight such joints.Using ABAQUS finite element software,a parametric numerical analysis was performed to discuss the influence of joint geometric dimensions on bearing capacity.The results showed that under axial tensile forces,the failure mode of the double-ear plate welded hollow sphere joints involved cracking of the hollow sphere and fail-ure of the weld at the connection between the ear plate and the hollow sphere,with some specimens exhibiting local-ized spalling on the sphere surface.A reference formula for calculating the tensile bearing capacity of double-ear plate welded hollow sphere joints with outer diameters ranging from 160 to 500 mm was proposed,providing valu-able insights for similar engineering designs.

double plates weldinghollow spherical jointtensile capacitycracking of hollow sphere

杨雪、刘佳敏、杜慧君、石琳、隋斌

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中国电建集团核电工程有限公司,济南 251200

太原理工大学土木工程学院,太原 030024

双耳板焊接 空心球节点 受拉承载力 空心球开裂

2024

低温建筑技术
黑龙江省寒地建筑科学研究院

低温建筑技术

影响因子:0.237
ISSN:1001-6864
年,卷(期):2024.46(10)