变参数桥梁结构模型设计、试验及有限元分析优化  

Design,Experimentation,Finite Element Analysis Optimization of Variable Parameter Bridge Structure Models

作　　者：刘华良 张也蓝 吴彦云 张浩海 刘烨烨 屈慧琼 LIU Hualiang;ZHANG Yelan;WU Yanyun;ZHANG Haohai;LIU Yeye;QU Huiqiong(School of Chemistry&Civil Engineering,Shaoguan University,Shaoguan 512005,Guangdong,China;AluHouse Technology(GD)Company Limited,Zhaoqing 526238,Guangdong,China)

机构地区：[1]韶关学院化学与土木工程学院,广东韶关512005 [2]广东铝遊家科技有限公司,广东肇庆526238

出　　处：《韶关学院学报》2024年第12期11-17,共7页Journal of Shaoguan University

基　　金：广东省高等教育教学改革项目(粤教高函[2024]9号);韶关学院教育教学改革研究项目(SYJY20231002);韶关学院课程思政建设项目(韶院党政办[2023]16号)。

摘　　要：以第14届全国大学生结构设计竞赛广东省赛题为例,研究变参数桥梁结构模型的优化.通过材料与构件的试验,探讨了材料截面尺寸及类型、材料组合形式等因素对力学性能的影响,并设计比较了多种桥梁结构模型方案.在利用Midas Civil有限元软件模拟分析内力和位移的基础上,优化了模型的传力方式、构件截面和尺寸,并选择了优质的竹材;在确保结构模型强度、刚度和稳定性的前提下,成功将模型重量从215克减轻到116克,提高了模型的荷重比;最后,通过模型制作和加载试验验证了优化后的桥梁结构模型的有效性.Using the 14th national university student structural design competition in Guangdong Province as an example,the design of variable parameter bridge structure models was explored.Through experimental research on materials and components,the study discussed the influence of factors such as material section size and type,material combination form on mechanical performance,and designed and compared multiple bridge schemes.By using Midas Civil finite element software to simulate and analyze internal forces and displacements,the study further optimized the overall transmission mode,component section and size,and selected bamboo materials.While ensuring the strength,stiffness,and stability of the structural model,the weight of the model was reduced from 215 g to 116 g,improving the load ratio of the model.Finally,the optimized bridge structure model was validated through model production and loading tests.

关 键 词：桥梁模型 变参数 受力体系 力学性能试验 有限元分析 模型设计及优化 

分 类 号：U442.5[建筑科学—桥梁与隧道工程] TU318[交通运输工程—道路与铁道工程]