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Finite element modeling of thermo-active diaphragm walls

Yi RUI, Mei YIN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 646-663 doi: 10.1007/s11709-020-0584-9

Abstract: Thermo-active diaphragm walls have a large potential to remedy one of these problems, since they areresponse of the ground and diaphragm wall., thermal expansion/shrinkage of pore water, and total stress applied on the diaphragm wall.These, in turn, cause displacements of the diaphragm wall and variations of the bending moments.However, these effects on the performance of diaphragm wall are not significant.

Keywords： thermo-active diaphragm wall     finite element analysis     thermo-hydro-mechanical coupling     ground source heat    

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Diaphragm wall-soil-cap interaction in rectangular-closed- diaphragm-wall bridge foundations

Hua WEN, Qiangong CHENG, Fanchao MENG, Xiaodong CHEN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 93-100 doi: 10.1007/s11709-009-0015-4

Abstract: Rectangular-closed-diaphragm-wall foundation is a new type of bridge foundation.Diaphragm wall-soil-cap interaction was studied using a model test.Due to the existence of cap, there is a “weakening effect” in inner shaft resistance of the upper wallsegments, and there is “enhancement effect” in the lower wall segments and in toe resistance.

Keywords： diaphragm wall     bridge foundation     low cap     interaction    

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The behavior of a rectangular closed diaphragm wall when used as a bridge foundation

Qiangong CHENG, Jiujiang WU, Zhang SONG, Hua WEN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 398-420 doi: 10.1007/s11709-012-0175-5

Abstract: The rectangular closed diaphragm (RCD) wall is a new type of bridge foundation.as well as the settlement, axial force and load-sharing ratio of a vertically loaded RCD wall.It was found that under lateral loading, the RCD wall behaves as an end-bearing friction wall duringpoint, and the horizontal displacement of the soil core is greater than that of the wall body.resistance of the wall body and is inversely proportional to the loading borne by the soil core.

Keywords： diaphragm wall     soil core     bridge foundation     FLAC3D     bearing behavior    

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Soil arching effect of Lattice-Shaped Diaphragm Wall as bridge foundation

Jiujiang WU, Lingjuan WANG, Qiangong CHENG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 446-454 doi: 10.1007/s11709-017-0397-7

Abstract: As a new type of bridge foundation, Lattice-Shaped Diaphragm Wall (hereinafter for LSDW) is highly concernedIt turns out to be that a differential wall-soil settlement can be found at the lower location of soilof soil arching; the soil arching effect is significantly influenced by the distance of two adjacent wall

Keywords： LSDW     soil arching     PFC2D     shape of soil arching     influencing factors    

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Parametric sensitivity analysis of cellular diaphragm wall

Xi CHEN, Wei XU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 358-364 doi: 10.1007/s11709-012-0177-3

Abstract: The deformation law of the cellular diaphragm wall in deep foundation pits was studied through numericalInteraction between the cellular diaphragm wall and the soil was also taken into account in the calculationwall.partition wall and the thickness of the wall.partition wall.

Keywords： cellular diaphragm wall     sensitivity analysis     optimization     centrifuge model test    

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Multi-scale investigation of active failure for various modes of wall movement

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 961-979 doi: 10.1007/s11709-021-0738-4

Abstract: Retained backfill response to wall movement depends on factors that range from boundary conditions toTherefore, the transition of retained backfills from at-rest condition to the active state is modeledHence, various modes of wall movement (translation and rotation) toward the active state are modeledpressure distribution and deformation mechanisms are discussed with reference to the associated modes of wall

Keywords： discrete-element modelling     granular materials     retaining walls     particle shape     arching    

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The design of the south anchorage diaphragm wall for the Fourth Nanjing Yangtze River Bridge

Dong Meng,Jia Lifeng,Li Dan

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 26-30

Abstract: The braced excavation system applied can be described as shaft diaphragm wall foundation with the planeinfin;" shape including two 1.5 m-thick 59 m-diameter semi-circle and one 1.5 thick separation wallHowever the separation wall provides the support for two semi-circles, it will not separate the bottomwall is to be removed slightly in order to construct the top plate as a whole.plane area, larger cross sectional moment of inertia, smaller radius, smaller circumferential stress of diaphragm

Keywords： anchorage     diaphragm wall     “∞”shape     the Fourth Nanjing Yangtze River Bridge    

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Isogeometric analysis of coupled thermo-elastodynamic problems under cyclic thermal shock

Asghar AMANI DASHLEJEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 397-405 doi: 10.1007/s11709-018-0473-7

Abstract: The isogeometric analysis (IGA) method was extended for the solution of the coupled thermo-elastodynamic

Keywords： isogeometric analysis     coupled thermo-elastodynamic     dynamic analysis     generalized newmark     cyclic thermal    

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Power performance of circular piezoelectric diaphragm generators

TANG Kehong, KAN Junwu, YANG Zhigang, CHENG Guangming, PENG Taijiang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 434-440 doi: 10.1007/s11465-008-0069-3

Abstract: Simulation results show that there are optimal structural parameters and load for a composite diaphragmA piezoelectric diaphragm generator with given dimensions tends to achieve higher output power under

Keywords： clamped boundary     energy-harvesting     composite diaphragm     piezoelectric composite     maximum    

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Free vibration analysis of functionally graded porous curved nanobeams on elastic foundation in hygro–thermo–magnetic

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 584-605 doi: 10.1007/s11709-023-0916-7

Abstract: equation of a functionally graded porous (FGP) curved nanobeam on an elastic foundation in a hygro–thermo–magnetic

Keywords： functionally graded porous material     curved nanobeam     hygro–thermo–magnetic     enriched finite element    

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behavior of stiffened joints between concrete-filled steel tubular column and steel beam with narrow outer diaphragm

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: engineering which was between concrete-filled steel tubular column and steel beam with narrow outer diaphragmOn the contrary, the inner diaphragm and inner stiffeners had limited impacts on the hysteretic behaviorThere was no hysteresis damage fracture on the narrow outer diaphragm connected to the concrete-filled

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

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The construction and key techniques of the Fourth Nanjing Yangtze River Bridge

Wu Huanling

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 4-11

Abstract: deep foundation design and construction technical problems of oversized "∞" shape diaphragmwall and ultra-large well-sinking under complicated geological conditions, proposes the technologies

Keywords： construction management     key technical innovation     complicated geological conditions     oversized “∞” shape diaphragmwall     ultra-large well-sinking    

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Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 37-45 doi: 10.1007/s11708-015-0390-6

Abstract: Compared with the traditional engines, the thermo-acoustic engines are relatively new and can act asIn this paper, the influence of the dimensions of the main parts of the small-scale Stirling thermo-acousticBased on the numerical simulation, a small-scale Stirling thermo-acoustic engine were constructed and

Keywords： thermo-acoustic Stirling engine     small-scale     simulation     experiment    

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A Thermo-Tunable Metamaterial as an Actively Controlled Broadband Absorber Article

Xiao-Chang Xing, Yang Cao, Xiao-Yong Tian, Lingling Wu

Engineering 2023, Volume 20, Issue 1,   Pages 143-152 doi: 10.1016/j.eng.2022.04.028

Abstract: In this paper, we propose a thermo-tunable broadband metamaterial (T-TBM) using paraffin-based compositesActive control of the T-TBM reflection loss peaks from low to high frequency is realized by manipulating

Keywords： Metamaterials     Active control     Thermally tunable     Broadband absorption    

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Thermo-elastic extended meshfree method for fracture without crack tip enrichment

A. ASADPOUR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 441-447 doi: 10.1007/s11709-015-0319-5

Abstract: This is the first manuscript presenting an extended meshfree method for thermo- elastic fracture which

Keywords： meshfree method     thermo-elasticity    

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Title Author Date Type Operation

Finite element modeling of thermo-active diaphragm walls

Yi RUI, Mei YIN

Journal Article

Diaphragm wall-soil-cap interaction in rectangular-closed- diaphragm-wall bridge foundations

Hua WEN, Qiangong CHENG, Fanchao MENG, Xiaodong CHEN

Journal Article

The behavior of a rectangular closed diaphragm wall when used as a bridge foundation

Qiangong CHENG, Jiujiang WU, Zhang SONG, Hua WEN

Journal Article

Soil arching effect of Lattice-Shaped Diaphragm Wall as bridge foundation

Jiujiang WU, Lingjuan WANG, Qiangong CHENG

Journal Article

Parametric sensitivity analysis of cellular diaphragm wall

Xi CHEN, Wei XU

Journal Article

Multi-scale investigation of active failure for various modes of wall movement

Journal Article

The design of the south anchorage diaphragm wall for the Fourth Nanjing Yangtze River Bridge

Dong Meng,Jia Lifeng,Li Dan

Journal Article

Isogeometric analysis of coupled thermo-elastodynamic problems under cyclic thermal shock

Asghar AMANI DASHLEJEH

Journal Article

Power performance of circular piezoelectric diaphragm generators

TANG Kehong, KAN Junwu, YANG Zhigang, CHENG Guangming, PENG Taijiang

Journal Article

Free vibration analysis of functionally graded porous curved nanobeams on elastic foundation in hygro–thermo–magnetic

Journal Article

behavior of stiffened joints between concrete-filled steel tubular column and steel beam with narrow outer diaphragm

Chunyan QUAN,Wei WANG,Jian ZHOU,Rong WANG

Journal Article

The construction and key techniques of the Fourth Nanjing Yangtze River Bridge

Wu Huanling

Journal Article

Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Journal Article

A Thermo-Tunable Metamaterial as an Actively Controlled Broadband Absorber

Xiao-Chang Xing, Yang Cao, Xiao-Yong Tian, Lingling Wu

Journal Article

Thermo-elastic extended meshfree method for fracture without crack tip enrichment

A. ASADPOUR

Journal Article