摘要
目的研究H型钢梁翼缘开孔的最优设计,使实际工程中电气管线铺设达到美观、实用的效果.方法采用ANSYS有限元分析软件,对刚性连接、柔性连接、半刚性连接的H型钢梁进行翼缘开孔模拟.针对不同开孔直径、数量、位置,翼缘宽度,钢梁长度等参数进行分析.结果当翼缘宽度<100 mm时,不建议开孔;当翼缘宽度<150 mm,建议开孔直径为25 mm;当翼缘宽度为130 mm时,建议开孔补强;当翼缘宽度≥150 mm时,建议开孔直径为35 mm.开孔位置选择接近反弯点或弯矩为零且不应小于整体梁长度的1/6处;多组开孔选择翼缘两侧对称开孔;同等条件下,优先选用长度较小的钢梁进行开孔.结论在项目进行施工前,可以依据工程图纸,进行开孔钢梁位置和补强板的设定.运用集成化生产模式,在工厂直接进行开孔和补强.在条件允许的情况下,运用整体铸造的方式,可以更好地保证产品质量.
The optimal design of the flange opening of the H-shaped steel beam is studied to achieve the aesthetic and practical effect of laying the electrical pipeline in the actual project.Finite element analysis software ANSYS was used to simulate the flange opening of H-shaped steel beams with rigid connection,flexible connection and semi-rigid connection.The parameters of different opening diameter,number of openings,opening location,flange width,steel beam length were analyzed.When the flange width is less than 100 mm,it is not recommended to open the hole;when the flange width is 100~150 mm,the recommended hole diameter is 25 mm;when the flange width is greater than 150 mm,the recommended hole diameter is 35 mm;when the flange width is 130 mm,the recommended opening diameter is 35 mm,need to strengthen treatment.The recommended position of the opening is close to the anti-bending point or the place where the moment is zero and it should not be less than 1/6 of the overall beam length;multiple sets of openings are recommended to choose symmetrical openings on both sides of the flange;under the same conditions,it is recommended to use smaller steel beams for openings.Before the construction of the project,according to the engineering drawings,the position of the opening steel beam and the setting of the reinforcement board can be set.The use of integrated production mode,in the factory to directly open and reinforce,to meet the actual construction needs of the H-beam flange opening.If conditions permit,the use of integral casting can better ensure product quality.
作者
郝润霞
张安康
田志昌
苏丽丽
HAO Runxia;ZHANG Ankang;TIAN Zhichang;SU Lili(School of Civil engineering,Inner Mongolia University of Science and Technology,Baotou,China,014010;China Railuay 9th Breau group Second Engineering Co.Ltd.,Liaoyang,China,111000;Wanjun Real Estate(Baotou)Co.Ltd.,Baotou,China,014030)
出处
《沈阳建筑大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第5期786-795,共10页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(51268042)
