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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: based on the New Yuanliangshan tunnel project to investigate the water pressure resistance of lining constructionjoints in high-pressure and water-rich karst tunnels.joints.The water pressure resistance of the lining construction joint is positively correlated with the liningjoints.

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

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Concrete construction technology on tower beam of Three Gorges Project ship lift

Yu Ying

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 27-32

Abstract:

he concrete construction of the beam concrete of tower load-bearing structureIn this paper, combined with the structural features and construction characteristics of concrete pouringconstruction of the Three Gorges Project ship lift top beam is summarized, which uses hierarchical,Through scientific computing, reasonable construction machinery layout and construction management aremade out to ensure the quality of concrete construction for tower beam.

Keywords： ship lift     beam     concrete     construction joints     pouring stratification     Three Gorges Project    

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Conceptual design of compliant translational joints for high-precision applications

Guangbo HAO,Haiyang LI,Xiuyun HE,Xianwen KONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 331-343 doi: 10.1007/s11465-014-0321-y

Abstract:

Compliant translational joints (CTJs) have been extensively used in precision engineering and microelectromechanical

Keywords： compliant mechanisms     translational joints     conceptual design     parallelogram     straight-line motion     combination    

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Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal joints

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 37-52 doi: 10.1007/s11709-022-0920-3

Abstract: The existing shield tunnel is regarded as a Timoshenko beam with longitudinal joints.The opening and relative dislocation of the longitudinal joints can be calculated using Dirac delta functionsThe effects of the stiffness reduction at the longitudinal joints (α and β), the shearingfor simulating the discontinuous mechanical behaviors of existing shield tunnels with longitudinal jointsIn addition, the joints allow rigid structures to behave flexibly in general, as well as allow flexible

Keywords： tunnel–soil interaction     discontinuous analysis     longitudinal joints     existing shield tunnel     Timoshenko    

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Seismic behavior experimental study of frame joints with special-shaped column and dispersed steel bar

Shuchun LI, Bo DIAO, Youpo SU,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 378-383 doi: 10.1007/s11709-009-0064-8

Abstract: flame joint with special-shaped beam and column, mechanical performance of three groups of six RC flame jointsThe seismic behaviors of the joints with different proportions of dispersed-steel-bar beams were analyzedThe results of experimental analysis indicate that the mechanical and seismic behaviors of frame joints

Keywords： beam with dispersed steel bar     flame joints with special-shaped beam and column     seismic behavior     scale    

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Experimental and numerical analysis of beam to column joints in steel structures

Gholamreza ABDOLLAHZADEH, Seyed Mostafa SHABANIAN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 642-661 doi: 10.1007/s11709-017-0457-z

Abstract: The behaviors such as extreme non-elastic response, constant changes in roughness and resistance, as well as formability under extreme loads such as earthquakes are the primary challenges in the modeling of beam-to-column connections. In this research, two modeling methods including mechanical and neural network methods have been presented in order to model the complex hysteresis behavior of beam-to-column connections with flange plate. First, the component-based mechanical model will be introduced in which every source of transformation has been shown only with geometrical and material properties. This is followed by the investigation of a neural network method for direct extraction of information out of experimental data. For the validation of behavioral curves as well as training of the neural network, the experiments were carried out on samples with real dimensions of beam-to-column connections with flange plate in the laboratory. At the end, the combinational modeling framework is presented. The comparisons reveal that the combinational modeling is able to display the complex narrowed hysteresis behavior of the beam-to-column connections with flange plate. This model has also been successfully employed for the prediction of the behavior of a newly designed connection.

Keywords： beam to column connections     experiments     component method     neural network model     combinational modeling    

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Weakening behavior of waterproof performance in joints of shield tunnels under adjacent constructions

Frontiers of Structural and Civil Engineering   Pages 884-900 doi: 10.1007/s11709-022-0912-3

Abstract: of shield tunnels frequently occurs in China, leading to deformation of tunnel lining and leakage in jointsIn this study, the weakening behavior of waterproof performance was investigated in the joints of shieldtunnels under transverse deformation induced by adjacent construction.It was determined that the joints with the greatest decline in waterproof performance were located atWhen the waterproof performance of these joints decreased to 50% and 30%, the transverse deformations

Keywords： shield tunnel     waterproof performance     horizontal transverse deformation     joint opening     weakening behavior    

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Numerical analysis of aluminum alloy reticulated shells with gusset joints under fire conditions

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 448-466 doi: 10.1007/s11709-022-0910-5

Abstract: study, a numerical analysis was conducted on aluminum alloy reticulated shells (AARSs) with gusset jointsmodel can also be adopted to analyze the fire response of other reticulated structures with semi-rigid jointswas conducted based on the numerical model to explore the buckling behavior of K6 AARS with gusset joints

Keywords： aluminum alloy reticulated shell     gusset joint     numerical analysis     fire resistance    

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Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 763-779 doi: 10.1007/s11709-023-0917-6

Abstract: sidewall components and aggravates the shear and bending deformations in the core region of the connection joints

Keywords： underground structures     precast sidewall specimen     seismic test method     bearing capacity     energy dissipation capacity     plastic deformation    

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

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: This paper addresses the problem of condition assessment of bridge expansion joints using long-term measurementprocess control using mean value control charts is further used to detect damage to the bridge expansion joints

Keywords： structural health monitoring     displacement     expansion joint     temperature effect     wind effect     traffic loading     statistical process control     suspension bridge    

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Brazing of ceramic-to-ceramic and ceramic-to-metal joints in air

Kirsten BOBZIN, Thomas SCHLAEFER, Lidong ZHAO, Nils KOPP, Arne SCHLEGEL

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 125-129 doi: 10.1007/s11465-010-0007-z

Abstract: brazing (RAB) is an emerging technology for the production of ceramic-to-ceramic and ceramic-to-metal jointsAgCu and AgCuTi braze alloys could also be used to produce brazed joints with the SOFC materials ceramic

Keywords： reactive air brazing (RAB)     X1CrTiLa22     Al2O3     yttria stabilized zirconia (YSZ)     solid oxide fuel cell (SOFC)    

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Investigation of the interior RC beam-column joints under monotonic antisymmetrical load

Fei GAO, Zhiqiang TANG, Biao HU, Junbo CHEN, Hongping ZHU, Jian MA

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1474-1494 doi: 10.1007/s11709-019-0572-0

Abstract: The paper presents numerical findings of reinforced concrete interior beam-column joints under monotoniceffects of hoop reinforcement ratio in joint core and the axial compression ratio on the responses of the joints

Keywords： RC beam-column joint     reinforcement ratio in joint core     axial compression ratio     finite element     test    

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Experiment study on fatigue property of concrete filled steel pipe K-joints

Zhong Xingu,Yang Sheng,Shi Weihua

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 97-100

Abstract: the truss arch of Xiangtan 4th Bridge, we made fatigue property test on concrete filled steel pipe K-jointsdifferent specifications, and calculated the amplitude of fatigue load of concrete filled steel pipe K-jointsassess fatigue life of concrete filled steel pipe, and fatigue property of concrete filled steel pipe K-jointswas obviously better than that of steel pipe K-joints.Moreover, the S—N curve of concrete filled steel pipe K-joints proposed by this paper would be

Keywords： concrete filled steel pipe K-joints     fatigue property     S—N curve    

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A toughness based deformation limit for X- and K-joints under brace axial tension

Bo GU,Xudong QIAN,Aziz AHMED

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 345-362 doi: 10.1007/s11709-016-0333-2

Abstract: the initiation of ductile fracture failure in fatigue-cracked circular hollow section (CHS) X- and K-jointscomputations on the crack driving force and previously published verification study against large-scale CHS X-jointsthus developed follow a linear relationship with respect to the crack-depth ratio for both X- and K-jointsComparison of the predicated deformation limit against experimental on cracked tubular X- and K-jointsextrapolated to a zero crack depth, provides an estimate on the deformation limits for intact X- and K-joints

Keywords： circular hollow section (CHS)     tubular joint     fracture failure     deformation limit     J-integral    

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

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: Moreover, segment joints with MSSF are also tested to evaluate the effects of MSSF on the failure modeand structural performance of the segment joints.A \ /-type crack pattern is always observed before the final failure of the segment joints.and sizes of the hand hole have different degree of influences on the structural behavior of segment joints

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

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Title Author Date Type Operation

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

Journal Article

Concrete construction technology on tower beam of Three Gorges Project ship lift

Yu Ying

Journal Article

Conceptual design of compliant translational joints for high-precision applications

Guangbo HAO,Haiyang LI,Xiuyun HE,Xianwen KONG

Journal Article

Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal joints

Journal Article

Seismic behavior experimental study of frame joints with special-shaped column and dispersed steel bar

Shuchun LI, Bo DIAO, Youpo SU,

Journal Article

Experimental and numerical analysis of beam to column joints in steel structures

Gholamreza ABDOLLAHZADEH, Seyed Mostafa SHABANIAN

Journal Article

Weakening behavior of waterproof performance in joints of shield tunnels under adjacent constructions

Journal Article

Numerical analysis of aluminum alloy reticulated shells with gusset joints under fire conditions

Journal Article

Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway

Journal Article

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

Youliang DING, Aiqun LI

Journal Article

Brazing of ceramic-to-ceramic and ceramic-to-metal joints in air

Kirsten BOBZIN, Thomas SCHLAEFER, Lidong ZHAO, Nils KOPP, Arne SCHLEGEL

Journal Article

Investigation of the interior RC beam-column joints under monotonic antisymmetrical load

Fei GAO, Zhiqiang TANG, Biao HU, Junbo CHEN, Hongping ZHU, Jian MA

Journal Article

Experiment study on fatigue property of concrete filled steel pipe K-joints

Zhong Xingu,Yang Sheng,Shi Weihua

Journal Article

A toughness based deformation limit for X- and K-joints under brace axial tension

Bo GU,Xudong QIAN,Aziz AHMED

Journal Article

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

Shaochun WANG, Xi JIANG, Yun BAI

Journal Article