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Youliang DING, Aiqun LI
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 374-380 doi: 10.1007/s11709-011-0122-x
关键词: structural health monitoring displacement expansion joint temperature effect wind effect traffic loading statistical process control suspension bridge
Jianling HOU, Weibing XU, Yanjiang CHEN, Kaida ZHANG, Hang SUN, Yan LI
《结构与土木工程前沿(英文)》 2020年 第14卷 第4期 页码 867-887 doi: 10.1007/s11709-020-0649-9
关键词: long-span arch bridge expansion joint disease vehicle-bridge coupling vibration dynamic response
赵怡彬,邵旭东
《中国工程科学》 2012年 第14卷 第10期 页码 103-112
桥台处伸缩缝问题是长期困扰工程界的难题,它会带来跳车、桥梁局部损坏、伸缩缝装置经常更换等各种问题。为有效解决这一问题,提出了一种适用于大中型桥梁的新型结构体系——单伸缩缝桥梁(单缝桥)。在考虑接线路面裂缝开展的情况下,建立了温度作用下单缝桥的简化计算模型,推导了单缝桥受力、变形的理论公式,用Fortran90编制程序,进行计算。以一座总长280 m的单缝梁桥为例,温度降低20 ℃时,接线路面钢筋最大应力为148 MPa,最大裂缝宽度为0.185 mm,符合规范要求;台后结构对主梁产生的附加应力仅为0.105 MPa,影响很小。通过对影响单缝桥性能的因素:支座类型、配筋率、接线路面长度、摩擦系数、土体刚度、桥长、温差等进行分析,绘制图表,得到以下主要结论:温降时,接线路面受拉,混凝土开裂,是较不利的状况;30 m长的接线路面可以满足结构受力和变形的需要;选择摩擦系数较小的支座和减少接线路面与垫层的摩擦力可以减少结构内力,在接线路面与垫层间推荐加铺土工格栅。
基于泰勒展开MUSIC的双基地MIMO阵列DOD与DOA联合估计方法 Research Papers
Wen-tao SHI, Qun-fei ZHANG, Cheng-bing HE, Jing HAN
《信息与电子工程前沿(英文)》 2019年 第20卷 第6期 页码 842-848 doi: 10.1631/FITEE.1700657
《结构与土木工程前沿(英文)》 页码 901-914 doi: 10.1007/s11709-023-0915-8
关键词: shield tunnel segment joint joint structural model failure mechanism
A MATLAB code for the material-field series-expansion topology optimization method
《机械工程前沿(英文)》 2021年 第16卷 第3期 页码 607-622 doi: 10.1007/s11465-021-0637-3
关键词: MATLAB implementation topology optimization material-field series-expansion method bounded material field dimensionality reduction
Rongrit CHATTHAWORN,Surachai CHAITUSANEY
《信息与电子工程前沿(英文)》 2015年 第16卷 第10期 页码 871-882 doi: 10.1631/FITEE.1500049
关键词: Adaptive tabu search Renewable energy generation Robust optimization Transmission expansion planning
Yunlin LIU, Shitao ZHU
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1095-1104 doi: 10.1007/s11709-019-0538-2
关键词: PCS concrete side joint numerical simulation fiber-beam element joint model solid element joint model seismic behavior
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0758-y
关键词: nodal line topology optimization structural dynamics design material-field series-expansion
Numerical simulation of sudden-expansion two-phase flows with two-scale second-order moment particle
ZENG Zhuoxiong, HAN Shoulei, ZHOU Lixing
《能源前沿(英文)》 2007年 第1卷 第2期 页码 202-206 doi: 10.1007/s11708-007-0026-6
关键词: gas-particle single-scale second-order large-scale fluctuation second-order sudden-expansion
Modelling autogenous expansion for magnesia concrete in arch dams
JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin
《结构与土木工程前沿(英文)》 2008年 第2卷 第3期 页码 211-218 doi: 10.1007/s11709-008-0025-7
关键词: field-measured irreversibility temperature irreversible element arch
Dynamic characteristics of a magnetorheological pin joint for civil structures
Yancheng LI,Jianchun LI
《机械工程前沿(英文)》 2014年 第9卷 第1期 页码 15-33 doi: 10.1007/s11465-014-0283-0
Magnetorheological (MR) pin joint is a novel device in which its joint moment resistance can be controlled in real-time by altering the applied magnetic field. The smart pin joint is intended to be used as a controllable connector between the columns and beams of a civil structure to instantaneously shift the structural natural frequencies in order to avoid resonance and therefore to reduce unwanted vibrations and hence prevent structural damage. As an intrinsically nonlinear device, modelling of this MR fluid based device is a challenging task and makes the design of a suitable control algorithm a cumbersome situation. Aimed at its application in civil structure, the main purpose of this paper is to test and characterise the hysteretic behaviour of MR pin joint. A test scheme is designed to obtain the dynamic performance of MR pin joint in the dominant earthquake frequency range. Some unique phenomena different from those of MR damper are observed through the experimental testing. A computationally-efficient model is proposed by introducing a hyperbolic element to accurately reproduce its dynamic behaviour and to further facilitate the design of a suitable control algorithm. Comprehensive investigations on the model accuracy and dependences of the proposed model on loading condition (frequency and amplitude) and input current level are reported in the last section of this paper.
关键词: Magnetorheological pin joint hyperbolic hysteresis model experimental testing frequency dependence
基于人体髋关节转动中心分析的髋关节外骨骼仿生设计 Article
Wei YANG,Can-jun YANG,Ting XU
《信息与电子工程前沿(英文)》 2016年 第17卷 第8期 页码 792-802 doi: 10.1631/FITEE.1500286
Identification of dynamic stiffness matrix of bearing joint region
Feng HU, Bo WU, Youmin HU, Tielin SHI
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 289-299 doi: 10.1007/s11465-009-0064-3
关键词: frequency response function (FRFs) dynamic stiffness finite element synthetic substructure method joint region
标题 作者 时间 类型 操作
Assessment of bridge expansion joints using long-term displacement measurement under changing environmental
Youliang DING, Aiqun LI
期刊论文
Typical diseases of a long-span concrete-filled steel tubular arch bridge and their effects on vehicle-induced dynamic response
Jianling HOU, Weibing XU, Yanjiang CHEN, Kaida ZHANG, Hang SUN, Yan LI
期刊论文
Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield
期刊论文
An approach for evaluating the impact of an intermittent renewable energy source on transmission expansion
Rongrit CHATTHAWORN,Surachai CHAITUSANEY
期刊论文
Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated
Yunlin LIU, Shitao ZHU
期刊论文
Achieving desired nodal lines in freely vibrating structures via material-field series-expansion topology
期刊论文
Numerical simulation of sudden-expansion two-phase flows with two-scale second-order moment particle
ZENG Zhuoxiong, HAN Shoulei, ZHOU Lixing
期刊论文
Modelling autogenous expansion for magnesia concrete in arch dams
JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin
期刊论文
Dynamic characteristics of a magnetorheological pin joint for civil structures
Yancheng LI,Jianchun LI
期刊论文