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Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Frontiers of Structural and Civil Engineering   Pages 901-914 doi: 10.1007/s11709-023-0915-8

Abstract: This study focuses on the mechanical characteristics and mechanism of a bolted circumferential jointanalytical algorithms for four stress stages are established to describe the bearing behaviors of the jointcoefficient, α, for the outer concrete compression zone is introduced into a simplified analytical modelstudy is performed to verify the rationality of the simplified theoretical analysis for the segment jointThe method for optimizing the joint flexural stiffness is clarified.

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1095-1104 doi: 10.1007/s11709-019-0538-2

Abstract: Side joint is the weak region of PCS concrete frame and has great influence on seismic behavior of theThus systematically study on the seismic behavior of PCS concrete side joint is necessary.This paper presents a finite element study on behavior of the side joint under seismic loading.In the finite element model, PCS concrete and the reinforced concrete (RC) is modeled by the solid elementThe numerical results is compared with the experimental results and it is found that the results of model

Keywords： PCS concrete side joint     numerical simulation     fiber-beam element joint model     solid element joint model    

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influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints by scaled model

Shaochun WANG, Xi JIANG, Yun BAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1200-1213 doi: 10.1007/s11709-019-0546-2

Abstract: responses of segment joint with macro structural synthetic fiber (MSSF).In this paper, a 1:2 reduced-scale experiment was conducted to study the structural performance of thesegment joint with different types of hand holes under ultra-high axial force.Special attention is paid to failure mode and structural performance (bearing capacity, deformation,joint with common concrete.

Keywords： shield tunneling     structural synthetic fiber concrete     hand hole     segment joint     ultimate bearing capacity    

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Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 15-33 doi: 10.1007/s11465-014-0283-0

Abstract:

Magnetorheological (MR) pin joint is a novel device in which its joint moment resistance can be controlledof a civil structure to instantaneously shift the structural natural frequencies in order to avoid resonanceand therefore to reduce unwanted vibrations and hence prevent structural damage.A computationally-efficient model is proposed by introducing a hyperbolic element to accurately reproduceComprehensive investigations on the model accuracy and dependences of the proposed model on loading condition

Keywords： Magnetorheological pin joint     hyperbolic hysteresis model experimental testing frequency dependence    

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General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product ofexponential model

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0681-7

Abstract: robots are usually decomposed into several Paden–Kahan subproblems based on the product of exponential modelsolve all the inverse kinematics problems, and there is no common approach to solve arbitrary three-jointalgebraic constraints are used as the conditions precedent to solve the inverse kinematics of three-jointindicating that the inverse solutions are consistent with the given joint angles validate the generalThe simulation result shows the inverse solutions and six sets given joint angles are consistent.

Keywords： inverse kinematics     Paden–Kahan subproblems     three-joint subproblems     product of exponential     closed-form    

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Model validation for structural dynamics in the aero-engine design process

Chaoping ZANG, D. J. EWINS,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 480-488 doi: 10.1007/s11708-009-0043-8

Abstract: A model validation technique in structural dynamics and its application in aero-engine development isThe concept and the approaches of model validation based on reference data supplied from experimentalA satisfactory agreement with both approaches is achieved, and finally, a strategy of model validationfor the whole engine model is introduced.

Keywords： model validation     aero-engine     structural dynamics    

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Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1403-1417 doi: 10.1007/s11709-020-0666-8

Abstract: Research on the quality of data in a structural calculation document (SCD) is lacking, although the SCDThe decision tree model was built using the content elements stored in the SCD, design companies, bridgeThe inverse-calculation method was applied to extract the weight factors from the decision tree model

Keywords： structural calculation document     bridge structure     XML Schema matching     weight factor     data mining     decisiontree model    

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A hybrid deep learning model for robust prediction of the dimensional accuracy in precision milling ofthin-walled structural components

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0688-0

Abstract: In this study, we develop a predictive model of the dimensional accuracy for precision milling of thin-walledstructural components.The aim is to classify three typical features of a structural component—squares, slots, and holes—intoBased on the experimental data collected during the milling experiments, the proposed model proved toThe average classification accuracy obtained using the proposed deep learning model was 9.55% higher

Keywords： precision milling     dimensional accuracy     cutting force     convolutional neural networks     coherent noise    

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Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1331-1348 doi: 10.1007/s11709-020-0686-4

Abstract: Regression surfaces between the structural parameters and structural output features, represented byAn inverse iterative process is then applied to identify the structural parameters by matching the experimentalboundary coefficients and physical parameters of the Euler-Bernoulli beam as well as a highway bridge modelthe proposed method will have practical applications in the identification and analysis of restored structural

Keywords： structural model validation     eigenvalue problem     response surface     inverse problems    

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Large-scale model test study on the water pressure resistance of construction joints of karst tunnel

Frontiers of Structural and Civil Engineering   Pages 1249-1263 doi: 10.1007/s11709-023-0974-x

Abstract: of the lining construction joint into internal water pressure.effects of the embedded position and waterstop type on the water pressure resistance of the construction jointThe water pressure resistance of the lining construction joint is positively correlated with the liningThe water pressure resistance of the construction joint determined via numerical calculations is similarto the model test results, indicating that the model test results have high accuracy and reliability

Keywords： karst tunnel     lining construction joint     water pressure resistance     large-scale model test     numerical    

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Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 425-437 doi: 10.1007/s11709-017-0427-5

Abstract: In the second step, having the structural destructions of the first step in view, a pushdown analysisFinally, the annual probability of structural collapse under simultaneous earthquake and blast loads

Keywords： gas blast     pushdown analysis     progressive collapse     annual probability of structural collapse     3D model of    

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Assessment of bridge expansion joints using long-term displacement measurement under changing environmental conditions

Youliang DING, Aiqun LI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 374-380 doi: 10.1007/s11709-011-0122-x

Abstract: The effects of temperature, traffic loading and wind on the expansion joint displacements are analyzedgood capability for detecting the damage-induced 1.0% variances of the annual changes in the expansion joint

Keywords： structural health monitoring     displacement     expansion joint     temperature effect     wind effect     traffic loading    

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Estimation of flexible pavement structural capacity using machine learning techniques

Nader KARBALLAEEZADEH, Hosein GHASEMZADEH TEHRANI, Danial MOHAMMADZADEH SHADMEHRI, Shahaboddin SHAMSHIRBAND

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1083-1096 doi: 10.1007/s11709-020-0654-z

Abstract: The most common index for representing structural condition of the pavement is the structural number.The current procedure for determining structural numbers involves utilizing falling weight deflectometerIn this study, three machine learning methods entitled Gaussian process regression, M5P model tree, andrandom forest used for the prediction of structural numbers in flexible pavements.is related to 759 flexible pavement sections at Semnan and Khuzestan provinces in Iran and includes “structural

Keywords： transportation infrastructure     flexible pavement     structural number prediction     Gaussian process regression     M5P model tree     random forest    

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Impact analytical models for earthquake-induced pounding simulation

Kun YE, Li LI

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 142-147 doi: 10.1007/s11709-009-0029-y

Abstract: Structural pounding under earthquake has been recently extensively investigated using various impactimpact spring stiffness, coefficient of restitution, and relative approaching velocity in the Hertz modelAt the same time, a modified Kelvin impact model, which can reasonably account for the physical natureof pounding and conveniently implemented in the earthquake-induced pounding simulation of structural

Keywords： structural pounding     Hertz model     Kelvin model     nonlinear damping     coefficient of restitution    

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Prediction of cyclic large plasticity for prestrained structural steel using only tensile coupon tests

Liang-Jiu JIA, Tsuyoshi KOYAMA, Hitoshi KUWAMURA

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 466-476 doi: 10.1007/s11709-013-0219-5

Abstract: Cold-formed steel members, which experience complicated prestrain histories, are frequently applied in structuralThis paper aims to predict cyclic plasticity of structural steels with tensile and compressive prestrainand compressive prestrain are conducted, and compared with numerical simulations using the Chaboche model

Keywords： cyclic plasticity     prestrain     Chaboche model     mild steel    

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Title Author Date Type Operation

Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Journal Article

Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Journal Article

influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints by scaled model

Shaochun WANG, Xi JIANG, Yun BAI

Journal Article

Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Journal Article

General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product ofexponential model

Journal Article

Model validation for structural dynamics in the aero-engine design process

Chaoping ZANG, D. J. EWINS,

Journal Article

Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

Journal Article

A hybrid deep learning model for robust prediction of the dimensional accuracy in precision milling ofthin-walled structural components

Journal Article

Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Journal Article

Large-scale model test study on the water pressure resistance of construction joints of karst tunnel

Journal Article

Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Journal Article

Assessment of bridge expansion joints using long-term displacement measurement under changing environmental conditions

Youliang DING, Aiqun LI

Journal Article

Estimation of flexible pavement structural capacity using machine learning techniques

Nader KARBALLAEEZADEH, Hosein GHASEMZADEH TEHRANI, Danial MOHAMMADZADEH SHADMEHRI, Shahaboddin SHAMSHIRBAND

Journal Article

Impact analytical models for earthquake-induced pounding simulation

Kun YE, Li LI

Journal Article

Prediction of cyclic large plasticity for prestrained structural steel using only tensile coupon tests

Liang-Jiu JIA, Tsuyoshi KOYAMA, Hitoshi KUWAMURA

Journal Article