钢结构箱式房屋模块间螺栓套环节点及其抗弯性能

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中文摘要：针对钢结构箱式房屋模块间节点连接性能较弱、安装效率较低等问题,提出一种新型的螺栓套环节点用于模块间的连接.通过 ABAQUS有限元软件对建立的螺栓套环节点模型进行抗弯性能分析,探讨受弯方向、螺栓直径及下角件是否开设侧面操作孔等因素对节点抗弯性能、极限承载力以及破坏模式的影响.结果表明:螺栓套环节点具有优异的抗弯承载力与抗弯性能,与现有的角件旋转式节点相比,直径为 58mm的螺栓套环节点的极限承载力和初始转动刚度分别提高了 52.2％和 37.3％;弯矩方向和下角件是否开设侧面操作孔对螺栓套环节点的抗弯承载力影响较小;螺栓直径是影响螺栓套环节点抗弯性能的关键因素,直径越大,节点极限承载力和初始转动刚度越大,但随着螺栓直径的增大,其对节点抗弯性能的影响程度减弱,故不能仅靠增大螺栓直径改善节点抗弯性能.

外文标题：Bending resistance performance of bolt-sleeve-ring joints between modules of steel structure box houses

外文摘要：Aiming at the problems of weak connection performance and low installation efficiency between modules in steel structure box houses,a new type of inter-module connection joint of steel box house-bolt sleeve ring joint is proposed.ABAQUS finite element software is used to analyze the bending performance of the bolt sleeve ring joint,and to explore the influence of factors such as bending direction,bolt diameter,and whether the lower corner has side operation holes on the ben-ding performance,ultimate bearing capacity,and failure mode of the joint.The results show that the bolt sleeve ring joints have excellent bending load capacity and flexural performance.Compared with the existing rotary joints,the ultimate bearing capacity and initial rotational stiffness of the bolt sleeve ring joints with a diameter of 58 mm are increased by 52.2％and 37.3％,respectively.The bending moment direction and whether the side operation hole is opened in the lower corner have little influence on the bending capacity capacity of the bolt-sleeve-ring joints.Bolt diameter is the key factor affecting the flexural performance of the bolt sleeve ring joints,the larger the bolt diameter,the greater the ultimate load capacity and initial rotational stiffness of the joint.Howev-er,with the increase of the bolt diameter,the extent of the influence of the bolt on the flexural performance of the joint decreases,and the flexural performance of the joint cannot be improved by increasing the bolt diameter alone.

外文关键词：

steel structure box housebolt-sleeve-ring jointsflexural performanceultimate bearing capacity

作者：

刘峰成、吕召能、王琨、居永军、贵季荣

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作者单位：

扬州大学建筑科学与工程学院,江苏扬州 225127

东北石油大学地球科学学院,黑龙江大庆 163318

江苏和天下节能科技股份有限公司,江苏扬州 225000

江苏扬建集团有限公司,江苏扬州 225002

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关键词：

钢结构箱式房屋螺栓套环节点抗弯性能极限承载力

基金：

国家自然科学基金青年基金江苏省自然科学基金青年基金中国博士后科学基金面上项目扬州市科技计划扬州大学合作共建科技创新平台项目江苏省高等学校基础科学(自然科学)研究项目

项目编号：

52308213BK202205932023M740582YZ2022058YZZP20220422KJB560033

出版年：

2024

DOI：

10.19411/j.1007-824x.2024.04.001

扬州大学学报(自然科学版)

扬州大学

扬州大学学报(自然科学版)

影响因子：0.473

ISSN：1007-824X

年,卷(期)：2024.27(4)