基于标准系缆力反演的系船柱结构安全评估方法  

Safety assessment method for bollard structure based on standard mooring force inversion

作　　者：吴俊 石培杨 周世良 舒岳阶 曹师宝 WU Jun;SHI Pei-yang;ZHOU Shi-liang;SHU Yue-jie;CAO Shi-bao(Southwestern Research Institute for Water Transport Engineering,Chongqing 400016,China;College of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆西南水运工程科学研究所,重庆400016 [2]重庆交通大学河海学院,重庆400074

出　　处：《水运工程》2019年第12期60-64,共5页Port & Waterway Engineering

基　　金：国家自然科学基金项目(51508059);宁波市交通运输科技项目(201704);重庆市基础研究与前沿探索项目(cstc2018jcyjAX0345);重庆市教育委员会科学技术研究项目(KJQN201800739)

摘　　要：为保障系船柱结构安全,提出基于标准系缆力反演的系船柱结构安全评估方法,将固定系缆高度和系缆角度下的系缆力作为标准系缆力,分析系缆力对系船柱表面应变的影响,并将系船柱表面应变作为表征系缆力的参数,建立系船柱标准系缆力反演模型。针对现有系船柱结构,利用有限元方法分析系船柱结构表面应变分布特性。选取有限测点应变反演标准系缆力,与有限元仿真结果进行对比。结果表明,反演结果具有较高精度,可监测复杂系泊情况下的系船柱的受力特性;将标准系缆力与设计系缆力进行比较,能够评估系船柱结构安全。In order to ensure the safety of the bollard structure,we propose a safety evaluation method for the bollard structure based on standard mooring force inversion,take the mooring force under the fixed mooring height and the mooring angle as the standard,analyze the influence of mooring force on the surface strain of the bollard,apply the surface strain of the bollard as a parameter to characterize the mooring force,and establish the standard mooring force inversion model of the bollard.According to the existing bollard structure,we use the finite element method to analyze the surface strain distribution characteristics of the bollard structure,select the finite-point strain inversion standard mooring force,and compare with the finite element simulation results.The results show that the inversion results have high precision,which can monitor the force characteristics of the bollard under complex mooring conditions.Comparing the standard mooring force with the design cable force can realize the safety evaluation of the bollard structure.

关 键 词：系船柱 标准系缆力 应变 结构安全评估 

分 类 号：U653.2[交通运输工程—港口、海岸及近海工程]