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Rebound Method for Detecting the Intensity of the Moist or Water-Immerged Concrete Compressive Strength

Zhang Suhang

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 99-102

Abstract:

The rebound method may be used to detect the intensity of the concrete.But there would have wrong judgment when using the rebound method to detect the intensity of the moistThe result of the rebound method detection on the moist or water-immerged concrete compressive strengthmethod is get.Finally, the intensity curve equation of the rebound method that can meet the demands of the precision

Keywords： rebound method     moist or water-immerged     concrete     compressive strength    

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Direct energy rebound effect for road transportation in China

Frontiers of Engineering Management   Pages 597-611 doi: 10.1007/s42524-023-0276-y

Abstract: that these objectives may, in part or in entirety, be offset by the phenomenon known as the energy reboundEREs associated with road passenger transportation and road freight transportation represent a partial rebound

Keywords： road transportation     direct energy rebound effect     asymmetric price effects     panel data model    

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Energy rebound effect in China’s manufacturing sector: Fresh evidence from firm-level data

Frontiers of Engineering Management   Pages 439-451 doi: 10.1007/s42524-022-0210-8

Abstract: The rebound effect refers to the phenomenon that individuals tend to consume more energy in the facePrevious empirical studies on the rebound effect of regions and sectors do not provide microscopic evidenceTo fill this gap, we use China’s firm-level data to estimate the rebound effect in China’s manufacturingAs for the dynamic rebound effect of subsectors, most subsectors present an upward trend, whereas fewIn addition, we find that the disparity of the rebound effect across sectors is more significant than

Keywords： energy rebound effect     energy efficiency     manufacturing sector     firm-level data     China    

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metaheuristic optimizations (SCE and ABC) for prediction of compressive strength of concrete using rebound

Dung Quang VU; Fazal E. JALAL; Mudassir IQBAL; Dam Duc NGUYEN; Duong Kien TRONG; Indra PRAKASH; Binh Thai PHAM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1003-1016 doi: 10.1007/s11709-022-0846-9

Abstract: In this study, we developed novel hybrid models namely Adaptive Neuro Fuzzy Inference System (ANFIS) optimized by Shuffled Complex Evolution (SCE) on the one hand and ANFIS with Artificial Bee Colony (ABC) on the other hand. These were used to predict compressive strength (Cs) of concrete relating to thirteen concrete-strength affecting parameters which are easy to determine in the laboratory. Field and laboratory tests data of 108 structural elements of 18 concrete bridges of the Ha Long-Van Don Expressway, Vietnam were considered. The dataset was randomly divided into a 70:30 ratio, for training (70%) and testing (30%) of the hybrid models. Performance of the developed fuzzy metaheuristic models was evaluated using standard statistical metrics: Correlation Coefficient (R), Root Mean Square Error (RMSE) and Mean Absolute Error (MAE). The results showed that both of the novel models depict close agreement between experimental and predicted results. However, the ANFIS-ABC model reflected better convergence of the results and better performance compared to that of ANFIS-SCE in the prediction of the concrete Cs. Thus, the ANFIS-ABC model can be used for the quick and accurate estimation of compressive strength of concrete based on easily determined parameters for the design of civil engineering structures including bridges.

Keywords： shuffled complex evolution     artificial bee colony     ANFIS     concrete     compressive strength     Vietnam    

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Comparison of shallow tunneling method with pile and rib method for construction of subway station in

Sina AMIRI; Ali Naghi DEHGHAN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 704-717 doi: 10.1007/s11709-021-0746-4

Abstract: In the present study, a comparison between the new shallow tunneling method (STM) and the traditionalpile and rib method (PRM) was conducted to excavate and construct subway stations in the geologicalThe maximum ground settlement of 29.84 mm obtained from this method was related to the station axis,

Keywords： shallow tunneling method     pile and rib method     ground surface settlement     subway station construction    

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Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 448-455 doi: 10.1007/s11709-014-0262-x

Abstract: classification method is confirmed by Japan Highway Public Corporation that this method can figure outBased on these advantages of method, in this study, according to data of five deep and long tunnelsin Iran, two equations for estimating the value of method from and classification systems wereThese equations as a new method were able to optimize the support system for and classification systemsFrom classification and its application in these case studies, it is pointed out that the method

Keywords： JH classification     Q and RMR classification     new method    

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Independent cover meshless particle method for complex geotechnical engineering

Jianqiu WU, Yongchang CAI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 515-526 doi: 10.1007/s11709-017-0428-4

Abstract: A new Independent Cover Meshless Particle (ICMP) method is proposed for the analysis of complex geotechnicalIn the ICMP method, the independent rectangular cover regardless of the shape of the analysis model isthe meshless interpolation function of the independent nodal cover, and the Cartesian Transformation MethodThe present method has a simple formulation and a low computational cost, and is easy for the numericaltypical numerical examples are presented to demonstrate the accuracy and robustness of the proposed method

Keywords： meshless method     particle method     independent cover     CTM     geotechnical engineering    

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3D mode discrete element method with the elastoplastic model

Wei HU, Feng JIN, Chong ZHANG, Jinting WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 57-68 doi: 10.1007/s11709-012-0139-9

Abstract: The three-dimensional mode-deformable discrete element method (3MDEM) is an extended distinct element

Keywords： mode discrete element method     elastoplastic     numerical method     discontinuum     contact    

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The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired

Gui-Rong Liu

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 456-477 doi: 10.1007/s11709-019-0519-5

Abstract:

The smoothed finite element method (S-FEM) was originated by G R Liu by combining some meshfree techniqueswith the well-established standard finite element method (FEM).

Keywords： computational method     finite element method     smoothed finite element method     strain smoothing technique    

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Explicit optimization method for cutting-screw-thread on the basis of dual-RSM

Zhengbao LEI, Shubin WEI, Qingyun DU

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 423-430 doi: 10.1007/s11465-010-0109-7

Abstract: Second, the peak acceleration function of each parameter by using response surface method (RSM) is obtainedA dual RSM-based explicit method is proposed.This method can satisfy the demand for engineering accuracy.

Keywords： vehicle engineering     crash     safety     explicit method     response surface method    

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Application of random set method in a deep excavation: based on a case study in Tehran cemented alluvium

Arash SEKHAVATIAN, Asskar Janalizadeh CHOOBBASTI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 66-80 doi: 10.1007/s11709-018-0461-y

Abstract: layers of cemented coarse grained soil located in Tehran, Iran by non-deterministic Random Set (RS) methodIn order to enhance the acceptability of the method among engineers, a pertinent code was written in

Keywords： uncertainty     reliability analysis     deep excavations     random set method     finite difference method    

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A simple method for evaluating liquefaction potential from shear wave velocity

Lianyang ZHANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 178-195 doi: 10.1007/s11709-010-0023-4

Abstract: This paper develops a simple method for evaluating the liquefaction potential of soils from shear wavevelocity by using the optimum seeking method to directly analyze the liquefaction history data and quantifyThe developed method uses the measured data directly and in a very simple way.Comparisons indicate that the developed simple method has a higher success rate for evaluating liquefactionA case study is presented to illustrate the application of the developed simple method and further confirms

Keywords： liquefaction     earthquake     simple method     shear wave velocity     case history introduction    

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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 whichTwo benchmark examples illustrate the efficiency of the method.

Keywords： meshfree method     thermo-elasticity    

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Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 390-405 doi: 10.1007/s11465-020-0588-0

Abstract: The level set method (LSM), which is transplanted from the computer graphics field, has been successfullyIn this study, a level set band method is proposed to overcome this drawback in handling topology changesby incorporating one parameter, namely, level set band, to seamlessly combine LSM and density-based methodThe proposed method demonstrates a flexible topology change by applying a certain size of the level setThe method is easy to implement for improving existing LSMs and does not require the introduction of

Keywords： level set method     topology optimization     density-based method     level set band    

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A new method for boring of non-circular holes

ZHANG Kai, HU De-jin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 456-460 doi: 10.1007/s11465-006-0058-3

Abstract: between the control current and the actuation force was established, and the synchronizing control method

Keywords： electromagnetic actuation     control method     displacement     flexible body     revolving electromagnetic    

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Title Author Date Type Operation

Rebound Method for Detecting the Intensity of the Moist or Water-Immerged Concrete Compressive Strength

Zhang Suhang

Journal Article

Direct energy rebound effect for road transportation in China

Journal Article

Energy rebound effect in China’s manufacturing sector: Fresh evidence from firm-level data

Journal Article

metaheuristic optimizations (SCE and ABC) for prediction of compressive strength of concrete using rebound

Dung Quang VU; Fazal E. JALAL; Mudassir IQBAL; Dam Duc NGUYEN; Duong Kien TRONG; Indra PRAKASH; Binh Thai PHAM

Journal Article

Comparison of shallow tunneling method with pile and rib method for construction of subway station in

Sina AMIRI; Ali Naghi DEHGHAN

Journal Article

Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Journal Article

Independent cover meshless particle method for complex geotechnical engineering

Jianqiu WU, Yongchang CAI

Journal Article

3D mode discrete element method with the elastoplastic model

Wei HU, Feng JIN, Chong ZHANG, Jinting WANG

Journal Article

The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired

Gui-Rong Liu

Journal Article

Explicit optimization method for cutting-screw-thread on the basis of dual-RSM

Zhengbao LEI, Shubin WEI, Qingyun DU

Journal Article

Application of random set method in a deep excavation: based on a case study in Tehran cemented alluvium

Arash SEKHAVATIAN, Asskar Janalizadeh CHOOBBASTI

Journal Article

A simple method for evaluating liquefaction potential from shear wave velocity

Lianyang ZHANG,

Journal Article

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

A. ASADPOUR

Journal Article

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Journal Article

A new method for boring of non-circular holes

ZHANG Kai, HU De-jin

Journal Article