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Theoretical Study and Engineering Practice of Long-Span Spatial Structures

Shen Shizhao

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 34-41

Abstract:

The development of long-span spatial structures is characterized by the continual innovation of structuralSeveral unconventional spatial structures designed by the author are introduced in this article as examplesSome theoretical studies by the author including the analytic theory of cable-suspended structures, theand vibration control of reticulated shells, as well as the wind-induced response analysis of cable structures

Keywords： spatial structures     reticulated shells     cable-suspended structures     membrane structures     structural stability    

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Comparative seismic design optimization of spatial steel dome structures through three recent metaheuristic

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 57-74 doi: 10.1007/s11709-021-0784-y

Abstract: Steel dome structures, with their striking structural forms, take a place among the impressive and aestheticIn this paper, the seismic design optimization of spatial steel dome structures is achieved through threeThe optimum spatial steel dome designs achieved by proposed WS, GW, and BSO algorithms are compared with

Keywords： steel dome optimization     water strider algorithm     grey wolf algorithm     brain storm optimization algorithm     hyperband optimization algorithm    

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Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 518-531 doi: 10.1007/s11709-020-0611-x

Abstract: This article presents the soil spatial variability effect on the performance of a reinforced earth wallThe influences of the spatial variability response of the geotechnical system in terms of horizontalThe results obtained show that the spatial variability has an important influence on the facing horizontal

Keywords： reinforced earth wall     geosynthetic     random field     spatial variability     Monte Carlo simulation    

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Industrial eco-efficiency and its spatial-temporal differentiation in China

Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 559-568 doi: 10.1007/s11783-012-0400-4

Abstract: The aim of this paper is to study the spatial-temporal differentiation of industrial eco-efficiency inUsing methods based on the data envelopment analysis (DEA) model and exploratory spatial data analysis(ESDA) and data from 1985, 1995, 2005, and 2008 of 30 provinces in China, the spatial-temporal patternindustrial eco-efficiency are dominated by clustering of relatively low efficiency provinces; second, spatialunits are concentrated in eastern China, and the lower level spatial units are mainly in western and

Keywords： industrial eco-efficiency     data envelopment analysis (DEA) model     exploratory spatial data analysis (ESDA    

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Border-search and jump reduction method for size optimization of spatial truss structures

Babak DIZANGIAN, Mohammad Reza GHASEMI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 123-134 doi: 10.1007/s11709-018-0478-2

Abstract: This paper proposes a sensitivity-based border-search and jump reduction method for optimum design of spatialSpatial truss problems were attempted for optimization in order to show the fastness and efficiency of

Keywords： optimum design     sensitivity analysis     reduction method     spatial trusses     OpenSees    

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 224-239 doi: 10.1007/s11709-012-0166-6

Abstract: Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structuresThese structures include air-supported membrane structures, cable-membrane structures, cable truss structures, beam string structures, suspen-domes, cable domes, composite structures of cable dome and single-layersteel structures and so forth., modern flexible space structures and modern rigid-flexible combined space structures.

Keywords： modern long-span space structures     rigid space structures     flexible space structures     rigid-flexible combinedspace structures     application and development    

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Abundance, spatial distribution, and physical characteristics of microplastics in stormwater detention

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1724-y

Abstract: Despite extensive research on microplastics (MP) in marine environments, little is known about MP abundance and transport in terrestrial systems. There is, therefore, still little understanding of the main mechanisms driving the substantial transport of MP across different environmental compartments. Storm events can transport MP beyond boundaries, such as from the land to groundwater or the ocean, as has already been discovered for organic carbon transport. Urban stormwater detention ponds are suitable environments to study the impact of stormwater on the environmental fate and transport of MP. Herein, we investigate the longitudinal and vertical distribution of MP within two detention ponds with different physical characteristics. Soil samples were collected at various locations and from multiple depths (surface and subsurface layers) for measuring MP concentrations using fluorescence microscopy. Our findings show that MP are retained more near the inlet of the ponds, and MP of larger sizes were found more abundantly near inlets than outlets. We also found that MP mass and sizes decrease from surface soil to subsurface soil. In the pond, where vegetation (grass root network) was more considerable, MP were found more evenly distributed along the depth. In terms of shape, the fragments were the most abundant MP shape.

Keywords： Microplastic     Environmental transport     Soil pollution     Stormwater     Detention ponds    

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Practical optimization of deployable and scissor-like structures using a fast GA method

M. SALAR, M. R. GHASEMI, B. DIZANGIAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 557-568 doi: 10.1007/s11709-018-0497-z

Abstract: This paper addresses practical sizing optimization of deployable and scissor-like structures from a newThese structures have been recently highly regarded for beauty, lightweight, determine behavior, properAt this time, there is a few studies done considering practical optimization of these structures.In foldable scissor-like structures, connections have a complex behavior.are not affordable because they need more material than steel structures and cause more environmental

Keywords： optimization     scissor-like structures     deployable structures     genetic algorithm     ABAQUS    

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Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2375-z

Abstract: mixtures (denoted as mix-decalin), in order to clarify the effects of the cis-/trans-structuresThis work demonstrates the relationship between the cis/trans structures and the pyrolysis

Keywords： endothermic fuel     decalin     pyrolysis     heat sink     molecular structure    

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Spatial prediction of soil contamination based on machine learning: a review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1693-1

Abstract:

● A review of machine learning (ML) for spatial prediction of soil

Keywords： Soil contamination     Machine learning     Prediction     Spatial distribution    

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Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Frontiers of Structural and Civil Engineering   Pages 1117-1131 doi: 10.1007/s11709-023-0939-0

Abstract: Sheathed post-and-beam wooden structures are distinct from light-wood structures.coefficients were all greater than 2.5, which satisfied the deformation requirements of residential structuresBased on the test and FE analysis results, the shear strength of the post-and-beam wooden structures

Keywords： post-and-beam wooden structures with sheathed walls     low reversed cyclic loading     bearing capacity     stiffness    

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A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 10-24 doi: 10.1007/s11709-022-0904-3

Abstract: A numerical framework was proposed for the seismic analysis of underground structures in layered groundNumerical results show that SV-waves are more destructive to underground structures than P-waves, andthe responses of underground structures are significantly affected by the incident angles.

Keywords： underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate

Frontiers of Structural and Civil Engineering   Pages 1086-1099 doi: 10.1007/s11709-023-0976-8

Abstract: Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate

Keywords： RBF     surrogate model     turbine support structures    

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Cutting performance of surgical electrodes by constructing bionic microstriped structures

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0728-9

Abstract: Surgical electrodes rely on thermal effect of high-frequency current and are a widely used medical tool for cutting and coagulating biological tissue. However, tissue adhesion on the electrode surface and thermal injury to adjacent tissue are serious problems in surgery that can affect cutting performance. A bionic microstriped structure mimicking a banana leaf was constructed on the electrode via nanosecond laser surface texturing, followed by silanization treatment, to enhance lyophobicity. The effect of initial, simple grid-textured, and bionic electrodes with different wettabilities on tissue adhesion and thermal injury were investigated using horizontal and vertical cutting modes. Results showed that the bionic electrode with high lyophobicity can effectively reduce tissue adhesion mass and thermal injury depth/area compared with the initial electrode. The formation mechanism of adhered tissue was discussed in terms of morphological features, and the potential mechanism for antiadhesion and heat dissipation of the bionic electrode was revealed. Furthermore, we evaluated the influence of groove depth on tissue adhesion and thermal injury and then verified the antiadhesion stability of the bionic electrode. This study demonstrates a promising approach for improving the cutting performance of surgical electrodes.

Keywords： surgical electrodes     tissue adhesion     thermal injury     bionic structures     cutting performance     medical    

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Mortarless structures based on topological interlocking

Arcady V. DYSKIN, Elena PASTERNAK, Yuri ESTRIN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 188-197 doi: 10.1007/s11709-012-0156-8

Abstract: We review the principle of topological interlocking and analyze the properties of the mortarless structuresWe concentrate on structures built of osteomorphic blocks – the blocks possessing specially engineeredcontact surfaces allowing assembling various 2D and 3D structures.These structures are easy to build and can be made demountable.The overall structural integrity of these structures depends on the force imposed by peripheral constraint

Keywords： topological interlocking     fragmented structures     segmented structures     constraint     delamination     bending stiffness    

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Title Author Date Type Operation

Theoretical Study and Engineering Practice of Long-Span Spatial Structures

Shen Shizhao

Journal Article

Comparative seismic design optimization of spatial steel dome structures through three recent metaheuristic

Journal Article

Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Journal Article

Industrial eco-efficiency and its spatial-temporal differentiation in China

Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV

Journal Article

Border-search and jump reduction method for size optimization of spatial truss structures

Babak DIZANGIAN, Mohammad Reza GHASEMI

Journal Article

Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Journal Article

Abundance, spatial distribution, and physical characteristics of microplastics in stormwater detention

Journal Article

Practical optimization of deployable and scissor-like structures using a fast GA method

M. SALAR, M. R. GHASEMI, B. DIZANGIAN

Journal Article

Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Journal Article

Spatial prediction of soil contamination based on machine learning: a review

Journal Article

Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Journal Article

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Journal Article

Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate

Journal Article

Cutting performance of surgical electrodes by constructing bionic microstriped structures

Journal Article

Mortarless structures based on topological interlocking

Arcady V. DYSKIN, Elena PASTERNAK, Yuri ESTRIN

Journal Article