摘要
对新型Q460材料单层球形网壳结构进行三维建模与受力分析,运用三维软件SolidWorks对单层球形网壳结构进行简化建模,对其中的关键部件的连接和焊接进行详细设计;同时对钢屋盖结构进行设计,并对张弦梁进行详细的制作与结构施工;利用3D3S钢结构—空间结构设计软件对新型Q460材料的单层球形网壳结构进行预应力施加以及结构优化设计等数值模拟计算分析,通过数值模拟分析得出不同矢跨比、预应力、撑杆高度、网壳边杆厚度、网格尺寸对单层球形网壳结构极限承载力大小影响的变化规律,得出矢跨比、撑杆高度、网壳边杆厚度、网壳尺寸对单层球形网壳结构极限承载力影响较大,预应力对极限承载力影响较小,该网壳结构最大极限承载力可以达到11.268 kN/m^(2),为后续更大空间的单层球形网壳结构的设计和受力分析提供理论参考。
3D modeling and force analysis of the new Q460 single-layer spherical reticulated shell structure are carried out.SolidWorks is used to simplify and model the single-layer spherical reticulated shell structure,and the connection and welding of the key components are designed in detail.At the same time,the steel roof structure is designed,and the string beam is made and constructed in detail.By using 3D3S Steel Structure-Space structure design software,the prestress and structural optimization design of the single-layer spherical reticulated shell of the new Q460 material are numerically simulated and analyzed.The variation laws of the influence of different vector span ratio,prestress,strut height,thickness of lattice side bar and mesh size on the ultimate bearing capacity of single-layer spherical reticulated shell structure are obtained.It is concluded that the vector span ratio,strut height,thickness of lattice side bar and mesh size have a greater influence on the ultimate bearing capacity of single-layer spherical reticulated shell structure,while prestress has a lesser influence on the ultimate bearing capacity.The maximum ultimate bearing capacity of the reticulated shell structure can reach 11.268 kN/m^(2),which provides a theoretical reference for the subsequent design and force analysis of single-layer spherical reticulated shell structures with larger space.
作者
赵战国
范景峰
梅二召
余利鹏
Zhao Zhanguo;Fan Jingfeng;Mei Erzhao;Yu Lipeng(School of Mechanical and Electrical Engineering,Henan Technical Institute,Zhengzhou 450042,China;Zhengzhou University Comprehensive Design and Research Institute Co.,Ltd.,Zhengzhou 450002,China)
出处
《机电工程技术》
2024年第9期266-270,294,共6页
Mechanical & Electrical Engineering Technology
基金
河南省重点研发与推广专项(科技攻关)计划项目(232102241022,222102220075,212102210623)
河南省高等学校重点科研项目计划(23A460031,22B460013,22A413006)。
关键词
单层球形
预应力
矢跨比
受力分析
single layer spherical shape
prestress
rise-span ratio
force analysis
作者简介
赵战国(1976-),男,河南济源人,学士,副教授,研究领域为机械设计与制造、机电控制技术、机电一体化技术、液压控制技术等,已发表论文3篇。;范景峰(1988-),男,河南淮阳人,硕士,讲师,研究领域为机械设计、机电控制等,已发表论文8篇。;梅二召(1989-),男,河南鲁山人,硕士,讲师,研究领域为测量控制技术、PLC控制技术等,已发表论文8篇。;余利鹏(1987-),男,河南郑州人,硕士,高级工程师,研究领域为机械设计、先进制造技术等,已发表论文5篇。
