摘要
本文以福建省某飘带状人行景观天桥为工程背景,应用MIDAS CIVIL有限元分析计算软件进行建模,确定静载试验的工况和方案.利用水箱抽水等效配重,开展桥梁静力荷载试验,对结构受力控制截面的挠度、应变变化情况进行测定.通过对比分析实测值与理论计算值,来评价该桥的受力性能和工作状态,判断承载能力是否满足设计荷载等级的要求.及时对施工过程中所存在的问题进行调整,为桥梁运营过程中的维护与管理提供依据,以保证人行天桥的安全和桥梁结构的耐久性.
In this paper,a ribbon pedestrian overpass in Fujian province as the engineering background,using MIDAS CIVIL finite element analysis and calculation software for modeling,determine the static load test conditions and programs.The static load test of the bridge is carried out by using the equivalent weight of water tank pumping.The deflection and strain of the controlled section of the structure are measured.By comparing the measured value with the theoretical value,the mechanical performance and working state of the bridge are evaluated,and the bearing capacity is judged to meet the requirements of the design load grade.Timely adjustment of the existing problems in the construction process provides the basis for the maintenance and management of the bridge in the operation process to ensure the safety of the overpass and the durability of the bridge structure.
作者
陈世九
CHEN Shi-jiu(Fujian Chuanzheng Communications College,Fuzhou 350007,China)
出处
《吉林建筑大学学报》
2018年第6期21-25,33,共6页
Journal of Jilin Jianzhu University
基金
福建船政交通职业学院科技服务团队资助项目(闽交院科2016-2号)
关键词
等效配重
静载试验
承载能力
equivalent counterweight
static load test
bearing capacity
