涵闸中非连续组合箱涵的结构优化  

Structural optimization of discontinuous combined box culvert in sluices

作　　者：崔雪 何茂杰 CUI Xue;HE Maojie(Guangdong Hydropower Second Bureau Group,Guangzhou 510000,China)

机构地区：[1]广东水电二局集团,广东广州510000

出　　处：《江淮水利科技》2025年第1期41-45,共5页Jianghuai Water Resources Science and Technology

基　　金：广东水电二局集团科技创新青年人才项目(ysdky202425)。

摘　　要：为研究非连续组合箱涵结构长度与结构变形、构件裂缝开展宽度之间的关系,依托某工程实例,采用有限元法建立三维有限元模型计算分析非连续组合箱涵在不同长度、不同工况条件下的应力、应变及裂缝宽度情况。研究结果表明:1)箱涵侧板应力、应变及裂缝宽度最大处均位于结构中部,非连续组合箱涵越长,结构中部变形及裂缝宽度越大;2)当非连续组合箱涵长度不大于7 m时结构通常可满足裂缝宽度控制要求,当长度大于7m时须要复核裂缝宽度以确定是否增设约束措施控制结构变形量。To study the relationship between the length of discontinuous combined box culvert structures and their structural deformation,as well as the width of cracks in components,a 3D finite element model was established using the finite element method.The analysis was based on an engineering example to calculate the stress,strain,and crack width under different lengths and operating conditions.The research findings are as follows:1)The maximum stress,strain,and crack width in the side plates of the box culvert occur at the center of the structure.The longer the discontinuous combined box culvert,the greater the deformation and crack width at the center of the structure.2)When the length of the discontinuous combined box culvert is no greater than 7 meters,the structure typically meets the crack width control requirements.However,if the length exceeds 7 meters,a review of the crack width is necessary to determine whether additional constraint measures are needed to control structural deformation.

关 键 词：非连续组合箱涵 受力分析 有限元 裂缝宽度 

分 类 号：TV66[水利工程—水利水电工程]