Resource Type

Journal Article 484

Conference Videos 7

Year

2024 1

2023 26

2022 58

2021 41

2020 35

2019 44

2018 15

2017 24

2016 19

2015 11

2014 18

2013 30

2012 14

2011 26

2010 13

2009 30

2008 22

2007 17

2006 5

2005 4

open ︾

Keywords

concrete 48

compressive strength 16

reinforced concrete 10

durability 7

fly ash 6

steel fiber 5

artificial neural network 4

different 4

ductility 4

fiber-reinforced polymer 4

mechanical properties 4

prestressed concrete 4

sensitivity analysis 4

shrinkage 4

CFRP 3

Concrete 3

Three Gorges Project 3

shear strength 3

stress-strain relationship 3

open ︾

Search scope:

排序： Display mode:

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

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 elementIn addition, the overall seismic behavior of the side joints in PCS concrete is better than that of the

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

HTML PDF Collect

Cyclic behavior of stiffened joints between concrete-filled steel tubular column and steel beam withnarrow outer diaphragm and partial joint penetration welds

Chunyan QUAN,Wei WANG,Jian ZHOU,Rong WANG

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 333-344 doi: 10.1007/s11709-016-0357-7

Abstract: This paper presented an investigation on a stiffened joint in practical engineering which was betweenconcrete-filled steel tubular column and steel beam with narrow outer diaphragm and partial joint penetrationmode and bearing capacity of the specimen which were influenced by the axial compression ratio of the concrete-filledThere was no hysteresis damage fracture on the narrow outer diaphragm connected to the concrete-filledsteel tubular column with partial joint penetration welds.

Keywords： narrow outer diaphragm     concrete-filled tubular column     joint     inner and outer stiffening     cyclic behavior    

HTML PDF Collect

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 jointA height adjustment coefficient, α, for the outer concrete compression zone is introduced intostudy 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    

HTML PDF Collect

Degree of bending of concrete-filled rectangular hollow section K-joints under balanced-axial loadings

Rui ZHAO; Yongjian LIU; Lei JIANG; Yisheng FU; Yadong ZHAO; Xindong ZHAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 461-477 doi: 10.1007/s11709-022-0818-0

Abstract: Currently, no DoB parametric formula is available for concrete-filled rectangular hollow section

Keywords： fatigue assessment     K-joint     design equations     degree of bending     fracture mechanics    

HTML PDF Collect

Performance analysis of series/parallel and dual side LCC compensation topologies of inductive power

P. Srinivasa Rao NAYAK, Dharavath KISHAN

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 166-179 doi: 10.1007/s11708-018-0549-z

Abstract: This paper analyzes series/parallel (S/P) and dual side inductor-capacitor-capacitor (LCC) compensationThe results convey that the efficiency of dual side LCC compensation is higher than that of S/P compensation

Keywords： series/parallel compensation     electric vehicle (EV)     dual side LCC compensation     inductive power transfer    

HTML PDF Collect

Precast steel–UHPC lightweight composite bridge for accelerated bridge construction

Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 364-377 doi: 10.1007/s11709-021-0702-3

Abstract: In this study, a fully precast steel–ultrahigh performance concrete (UHPC) lightweight composite bridgeTherefore, an innovative girder-to-girder joint that is suitable for LWCB was developed.A specimen consisting of two prefabricated steel–UHPC composite girder parts and one post-cast jointpart was fabricated to determine if the joint can effectively transfer load between girders.Based on the test results, a crack width prediction method for the joint interface, a simplified calculation

Keywords： accelerated bridge construction     ultrahigh-performance concrete     steel–UHPC composite bridge     UHPC girder-to-girderjoint    

HTML PDF Collect

Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 409-423 doi: 10.1007/s11708-016-0431-9

Abstract: the conventional thermal generators (spinning reserves), hydro power units and load demands (demand-side

Keywords： demand-side reserves     dynamic reserve activation approach     hydro power units     post contingency     sequential    

HTML PDF Collect

Typical diseases of a long-span concrete-filled steel tubular arch bridge and their effects on vehicle-induced

Jianling HOU, Weibing XU, Yanjiang CHEN, Kaida ZHANG, Hang SUN, Yan LI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 867-887 doi: 10.1007/s11709-020-0649-9

Abstract: A long-span concrete-filled steel tubular (CFST) arch bridge suffers severe vehicle-induced dynamic responsesresults show that a support void results in a height difference between both sides of the expansion joint

Keywords： long-span arch bridge     expansion joint disease     vehicle-bridge coupling vibration     dynamic response    

HTML PDF Collect

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

Frontiers of Engineering Management   Pages 452-461 doi: 10.1007/s42524-022-0209-1

Abstract: Nevertheless, certain demand side regulation strategy can be adopted to lower CO2 emissions

Keywords： CO2 emissions     demand side regulation     multi-regional input–output model     linear programming    

HTML PDF Collect

Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam) side

SHI Huangying, CHEN Wenjuan, ZHANG Liming

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 72-75 doi: 10.1007/s11705-007-0015-7

Abstract: New graft copolymers were synthesized by grafting N-vinylcaprolactam onto dextran. Their composition and structure were investigated by elemental analyses, infrared spectra and thermogravimetric analyses. By optical transmittance measurements, it was found that the aqueous solutions of these graft copolymers showed a temperature-dependent transmittance change due to the introduction of thermosensitive poly (-vinylcaprolactam) graft chains. Moreover, the lower critical solution temperature (LCST) of the graft copolymer in aqueous solution was dependent on its grafting extent and concentration. The LCST value was found to increase with the increase of the grafting extent and decrease with the increase of the copolymer concentration. With these stimuli-response properties, such polysaccharide derivative may hold potential applications in biomedicine and biotechnology.

Keywords： transmittance     copolymer concentration     LCST     temperature     elemental    

HTML PDF Collect

Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0740-0

Abstract: At present, few methods for these robots’ leg design utilize a side-mounted spatial parallel mechanismtask (LT) of the rover based on screw theory, we determine the desired motion characteristic of the side-mounted

Keywords： design synthesis     parallel mechanism     hybrid leg mechanism     screw theory     quadruped robot    

HTML PDF Collect

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1267-1279 doi: 10.1007/s11705-022-2291-7

Abstract: In this study, hydrogenated rosin was adopted for preparing hydrogenated rosin side-chain type diacids, which were reacted with mixed epoxy to obtain rosin side-chain type vitrimers.The tricyclic diterpene structure of rosin was introduced into the side chain in order to avoid the reduction

Keywords： vitrimers     rosin     catalyst-free     high mechanical properties     dynamic transesterification reaction    

HTML PDF Collect

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

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: The hand hole acts as a weak point and initial damage in the segment joint especially when the circumferentialor synthetic fiber in the tunneling, limited researches focus on the structural responses of segment jointThe segment joint with MSSF shows higher ultimate bearing capacity and toughness compared to segmentjoint with common concrete.Besides, the MSSF improves the initial cracking load and anti-spallling resistance of the segment joint

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

HTML PDF Collect

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 beamsstructure, the main purpose of this paper is to test and characterise the hysteretic behaviour of MR pin jointA test scheme is designed to obtain the dynamic performance of MR pin joint in the dominant earthquake

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

HTML PDF Collect

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    

HTML PDF Collect

Title Author Date Type Operation

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

Yunlin LIU, Shitao ZHU

Journal Article

Cyclic behavior of stiffened joints between concrete-filled steel tubular column and steel beam withnarrow outer diaphragm and partial joint penetration welds

Chunyan QUAN,Wei WANG,Jian ZHOU,Rong WANG

Journal Article

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

Journal Article

Degree of bending of concrete-filled rectangular hollow section K-joints under balanced-axial loadings

Rui ZHAO; Yongjian LIU; Lei JIANG; Yisheng FU; Yadong ZHAO; Xindong ZHAO

Journal Article

Performance analysis of series/parallel and dual side LCC compensation topologies of inductive power

P. Srinivasa Rao NAYAK, Dharavath KISHAN

Journal Article

Precast steel–UHPC lightweight composite bridge for accelerated bridge construction

Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG

Journal Article

Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

Journal Article

Typical diseases of a long-span concrete-filled steel tubular arch bridge and their effects on vehicle-induced

Jianling HOU, Weibing XU, Yanjiang CHEN, Kaida ZHANG, Hang SUN, Yan LI

Journal Article

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

Journal Article

Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam) side

SHI Huangying, CHEN Wenjuan, ZHANG Liming

Journal Article

Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Journal Article

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and

Journal Article

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

Shaochun WANG, Xi JIANG, Yun BAI

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