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Waterproofing Technology for Underground Fabricated Structure Joints Based on the Open Cut Method

Huang Mingli,Yang Ze,Tan Zhongsheng and Wang Wenzheng

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 131-139 doi: 10.15302/J-SSCAE-2017.06.019

Abstract: However, the use of underground fabricated structures in China has only recently begun.Owing to the complexity of the underground environment, waterproofing underground fabricated structureIn this paper, based on an analysis of the joints of an underground fabricated building and of the currenttechnology, we propose the use of an epoxy grouting material, which is used to pot the prefabricated structurejoint, and study the mechanical properties of the epoxy grouting material and its bonded concrete.

Keywords： prefabricated structures     underground structure joint     epoxy grouting material     prefabricated solidified    

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Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 345-351 doi: 10.1007/s11709-009-0054-x

Abstract: In beam-to-column joint with bolted end-plate connection, the structural details of column flange reinforcedThe joint is divided into some basic components, and the initial stiffness of each component is obtainedThe initial stiffness of reinforced joint can be obtained by assembling the initial stiffness of eachThe design moment resistance of the reinforced joint is then determined by the minimum of the designis accurate enough to be used to estimate the rigid behavior of the joint and to make parametric study

Keywords： steel structure     end-plate connection     backing plate     supplementary web plate     initial stiffness     moment resistance    

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Structure and performance of welding joint of Q235 steel welded by SHS welding

Junzhi HU, Sumei WANG, Xiaoli ZHAO, Shilin ZHU, Botao YU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 189-193 doi: 10.1007/s11465-010-0003-3

Abstract: The structure and properties of the welding joint are studied.The tensile-strength of the welding joint is 283 MPa, flexural strength is 628 MPa, impacttoughness is 46.43 J·cm, and the microhardness of the welding joint and fusion zone are 230&

Keywords： self-propagating high-temperature synthesis (SHS) welding     welding line     structure and performance     melting    

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An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1515-1529 doi: 10.1007/s11709-022-0887-0

Abstract: of this approach is that it realizes the entire process simulation from point dislocation source to undergroundstructure.This approach can provide an effective solution for seismic analysis of underground structures underTaking Daikai subway station as an example, the seismic response of the underground structure is simulatedunderground structure is 96.5% and the change of source parameters can lead to the change of structural

Keywords： source-to-structure simulation     FK-FEM hybrid approach     underground structures     point dislocation source    

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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 jointstudy is performed to verify the rationality of the simplified theoretical analysis for the segment jointinvestigation is conducted to discuss the factors affecting the ultimate compressive bending capacity of the jointThe method for optimizing the joint flexural stiffness is clarified.

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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Intelligent Monitoring System Based on Spatio–Temporal Data for Underground Space Infrastructure Review

Bowen Du, Junchen Ye, Hehua Zhu, Leilei Sun, Yanliang Du

Engineering 2023, Volume 25, Issue 6,   Pages 194-203 doi: 10.1016/j.eng.2022.07.016

Abstract: The advancement of underground space utilization has led to the development of three characteristicsHowever, compared to buildings and bridges overground, the diseases and degradation that occur underground

Keywords： Structure health monitoring     Underground space infrastructure     Machine learning     Spatio–temporal data    

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Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 29-37

Abstract: How to reduce the strength of tensile stress wave is a key problem for underground protective structurestructure against spalling collapse, were deduced based on many assumptions for simplification.The experimental results show that the anti-collapse capability of an underground structure with highThe analysis represents that "sandwich composite structure"  can obvious increase theanti-collapse strength of underground protective structures subjected to explosive loading.

Keywords： underground protective structure     concrete tensile properties     anti-collapse     stress waves    

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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 thewhole structure.Thus 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.

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

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Prototype test study on mechanical characteristics of segmental lining structure of underwater railway

He Chuan,Feng Kun,Yan Qixiang,Qi Chun

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 65-72

Abstract: by using “Multi function Shield Tunnel Structure Test System”.And the mechanical characteristics of segmental lining structure using straight assembling and staggeredThe results show that the mechanical characteristics of segmental lining structure vary from differentIt is also testified that the failure characteristic varies between straight assembling structure andstaggered assembling structure.

Keywords： underwater railway shield tunnel     segmental lining structure     prototype test     tenon joint     failure characteristics    

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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 controlledThe smart pin joint is intended to be used as a controllable connector between the columns and beamsof a civil structure to instantaneously shift the structural natural frequencies in order to avoid resonanceAimed at its application in civil structure, the main purpose of this paper is to test and characterisethe hysteretic behaviour of MR pin joint.

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

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Human hip joint center analysis for biomechanical design of a hip joint exoskeleton Article

Wei YANG,Can-jun YANG,Ting XU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8,   Pages 792-802 doi: 10.1631/FITEE.1500286

Abstract: The motions of the hip joint center with variation of the flexion angle were measured and the resultingThe humanexoskeleton model was analyzed to further validate the decrease of the hip joint internal forceduring hip joint flexion or abduction by applying the resulting design.

Keywords： Hip joint exoskeleton     Hip joint center     Compatible joint     Human-machine interaction force    

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Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 289-299 doi: 10.1007/s11465-009-0064-3

Abstract: The paper proposes an identification method of the dynamic stiffness matrix of a bearing joint regionThe dynamic stiffness matrix of the bearing joint region can be identified by measuring the matrix offrequency response function (FRFs) of the substructure (axle) and whole structure (assembly of the axledegree of freedom, the author employs an accurately calibrated finite element model of the unconstrained structureresults, and there is very high reliability in the identified dynamic stiffness matrix of the bearing joint

Keywords： frequency response function (FRFs)     dynamic stiffness     finite element     synthetic substructure method     joint    

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Joint slip investigation based on finite element modelling verified by experimental results on wind turbine

Saleh YAGHOOBI, Ahmad SHOOSHTARI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 341-351 doi: 10.1007/s11709-017-0393-y

Abstract:

Slippage corresponds to the relative displacement of a bolted joint subjected to shear loads sincethe construction clearance between the bolt shank and the bolthole at assembly can cause joint slip.Deflections of towers with joint slippage effects is up to 1.9 times greater than the displacements obtainedFinally, joint slip data for different types of angles, bolt diameter and bolt arrangements are generated

Keywords： Joint slip     cyclic loading     Finite element modelling     Experimental joint behavior     damping ratios (   

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

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

Abstract: solve all the inverse kinematics problems, and there is no common approach to solve arbitrary three-jointgeometric (NAG) methods that obtain the general closed-form inverse kinematics for all types of 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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Multi-omics joint analysis revealed the metabolic profile of retroperitoneal liposarcoma

Frontiers of Medicine doi: 10.1007/s11684-023-1020-z

Abstract: Retroperitoneal liposarcoma (RLPS) is the main subtype of retroperitoneal soft sarcoma (RSTS) and has a poor prognosis and few treatment options, except for surgery. The proteomic and metabolic profiles of RLPS have remained unclear. The aim of our study was to reveal the metabolic profile of RLPS. Here, we performed proteomic analysis (n = 10), metabolomic analysis (n = 51), and lipidomic analysis (n = 50) of retroperitoneal dedifferentiated liposarcoma (RDDLPS) and retroperitoneal well-differentiated liposarcoma (RWDLPS) tissue and paired adjacent adipose tissue obtained during surgery. Data analysis mainly revealed that glycolysis, purine metabolism, pyrimidine metabolism and phospholipid formation were upregulated in both RDDLPS and RWDLPS tissue compared with the adjacent adipose tissue, whereas the tricarboxylic acid (TCA) cycle, lipid absorption and synthesis, fatty acid degradation and biosynthesis, as well as glycine, serine, and threonine metabolism were downregulated. Of particular importance, the glycolytic inhibitor 2-deoxy-D-glucose and pentose phosphate pathway (PPP) inhibitor RRX-001 significantly promoted the antitumor effects of the MDM2 inhibitor RG7112 and CDK4 inhibitor abemaciclib. Our study not only describes the metabolic profiles of RDDLPS and RWDLPS, but also offers potential therapeutic targets and strategies for RLPS.

Keywords： RLPS     proteomics     metabolomics     lipidomics     metabolism    

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Title Author Date Type Operation

Waterproofing Technology for Underground Fabricated Structure Joints Based on the Open Cut Method

Huang Mingli,Yang Ze,Tan Zhongsheng and Wang Wenzheng

Journal Article

Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Journal Article

Structure and performance of welding joint of Q235 steel welded by SHS welding

Junzhi HU, Sumei WANG, Xiaoli ZHAO, Shilin ZHU, Botao YU,

Journal Article

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Journal Article

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

Journal Article

Intelligent Monitoring System Based on Spatio–Temporal Data for Underground Space Infrastructure

Bowen Du, Junchen Ye, Hehua Zhu, Leilei Sun, Yanliang Du

Journal Article

Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Journal Article

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

Yunlin LIU, Shitao ZHU

Journal Article

Prototype test study on mechanical characteristics of segmental lining structure of underwater railway

He Chuan,Feng Kun,Yan Qixiang,Qi Chun

Journal Article

Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Journal Article

Human hip joint center analysis for biomechanical design of a hip joint exoskeleton

Wei YANG,Can-jun YANG,Ting XU

Journal Article

Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Journal Article

Joint slip investigation based on finite element modelling verified by experimental results on wind turbine

Saleh YAGHOOBI, Ahmad SHOOSHTARI

Journal Article

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

Journal Article

Multi-omics joint analysis revealed the metabolic profile of retroperitoneal liposarcoma

Journal Article