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Seismic fragility assessment of revised MRT buildings considering typical construction changes

Rakesh DUMARU, Hugo RODRIGUES, Humberto VARUM

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 241-266 doi: 10.1007/s11709-019-0560-4

Abstract: The present study investigates the vulnerability assessment of the prototype revised Mandatory Rule ofnumber of storeys (three, four, and five) and different arrangement of infill walls (bare frame, soft-storeyThe vulnerability was also reduced through infill walls, where the probability of exceeding partial-collapsesections and details assigned for MRT building is not sufficient if considered as bare frame and soft-storey

Keywords： mid-rise buildings     revised NBC 205: 2012     masonry infill walls     configurations of infill walls     vulnerabilityassessment and inter-storey drift    

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Seismic vulnerability assessment of water supply network in Tianjin, China

Yanxi CHEN,Zhiguang NIU,Jiaqi BAI,Yufei WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 767-775 doi: 10.1007/s11783-014-0632-6

Abstract: Earthquakes are the most serious natural hazard to a WSN, and seismic risk assessment is essential toidentify its vulnerability to different stages of damage and ensure the system safety., and the finite element software ABAQUS and fuzzy mathematic theory were adopted to construct the assessmentFinally, the vulnerability was quantified by these functions.In this study, a whole seismic vulnerability assessment method for a WSN was built, and these analyses

Keywords： water supply network     seismic vulnerability assessment     finite element     fuzzy mathematics    

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Application of BCP-2007 and UBC-97 in seismic vulnerability assessment of gravity designed RC buildings

Muhammad Usman ALI, Shaukat Ali KHAN, Muhammad Yousaf ANWAR

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 396-405 doi: 10.1007/s11709-017-0436-4

Abstract: Recent earthquakes in Pakistan (Kashmir 2005, Balochistan 2008, and Balochistan 2013) revealed the vulnerabilityThis study investigates, through an analytical framework, the seismic vulnerability of these and otherDerived vulnerability curves show that the previous framework overestimated the damage and hence thevulnerability.Comparison of vulnerability parameters with previous studies show slight difference in performance of

Keywords： Building Code of Pakistan     earthquake engineering     seismic effects     vulnerability assessment of buildings     vulnerability framework    

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Assessing the impact on groundwater safety of inter-basin water transfer using a coupled modeling approach

Haifeng JIA,Shidong LIANG,Yansong ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 84-95 doi: 10.1007/s11783-014-0741-2

Abstract: Surface water and groundwater always behave in a coupled manner and are major components of hydrologic cycle. However, surface water simulation models and groundwater simulation models are run separately most of the time. Few models focus on the impact of hydraulic changes in the surface water flows on the groundwater, or specifically, the impact of a water transfer project to fill a seasonally dry channel. In this study, a linked surface water and groundwater simulation model was developed to assess the impact of a trans-basin water diversion project on the groundwater. A typical plain area east of Beijing was selected as a case study, representing Beijing’s main source of groundwater used for drinking water. A surface water quality model of the Chaobai River was developed based on the Water Quality Analysis Simulation Program (WASP), and a groundwater model was developed based on the Modular Finite-Difference Groundwater Flow Model (MODFLOW) and the Modular 3-D transport model (MT3D). The results of the surface water simulation were used as input for the groundwater simulation. Water levels and four contaminants (NH -N, COD , F, As) were simulated. With the same initial and boundary conditions, scenario analyses were performed to quantify the impact of different quantities of diversion water on the groundwater environment. The results showed the water quality of the groundwater sources was not significantly affected.

Keywords： surface water     groundwater     linked model     groundwater safety impact assessment     water diversion    

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Assessment of robustness of structures: Current state of research

Colin BRETT, Yong LU

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 356-368 doi: 10.1007/s11709-013-0220-z

Abstract: Some associated concepts, such as redundancy and vulnerability, will be discussed and interpreted in

Keywords： structural robustness     abnormal exposure     vulnerability     collapse     consequence    

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Liquefaction assessment using microtremor measurement, conventional method and artificial neural network

Sadegh REZAEI,Asskar Janalizadeh CHOOBBASTI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 292-307 doi: 10.1007/s11709-014-0256-8

Abstract: By using the fundamental frequency and amplification factor, the value of vulnerability index ( ) was

Keywords： liquefaction     microtremor     vulnerability index     artificial neural networks (ANN)     microzonation    

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Controlling interstory drift ratio profiles via topology optimization strategies

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 165-178 doi: 10.1007/s11709-022-0892-3

Abstract: An approach to control the profiles of interstory drift ratios along the height of building structuresproposed approach involves solving a min–max optimization problem to suppress the maximum interstory driftthe bound formulation and the other utilizes a p-norm function to aggregate all individual interstory driftThe proposed methodology can shape the interstory drift ratio profiles into inverted triangular or quadraticThe optimization results show the optimal structural features for controlling the interstory drift ratios

Keywords： interstory drift ratio     aggregation function     bound formulation     min–max problem     topology optimization    

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Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 839-848 doi: 10.1007/s11783-012-0409-8

Abstract: In this paper, it proposed an index system for hazard and vulnerability evaluations of water distributionUsing the method proposed herein, both the hazard index and vulnerability index were calculated for eachconcentration of contaminant and the total absorption are the most important factors in hazard and vulnerability

Keywords： water distribution network     hazard     vulnerability     contaminant accident    

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Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,

Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1251-1270 doi: 10.1007/s11709-019-0554-2

Abstract: Hence, developing precise tools for predicting drift capacities of reinforced concrete (RC) columns isIt serves as the basis for deriving the equations for predicting the drift capacity of RC columns byIt is demonstrated that the proposed equations predict drift capacities, which are in better agreement

Keywords： flexural-shear-axial failure     drift capacity     reinforced concrete columns     statistical analysis     fragility    

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A combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 497-510 doi: 10.1631/FITEE.1400349

Abstract: The bias drift of a micro-electro-mechanical systems (MEMS) accelerometer suffers from the 1/ noiseFor massive applications, the bias drift urgently needs to be improved.paper, a combined approach on closed-loop architecture modification is proposed to minimize the bias driftthe closed loop on the basis of modulated feedback architecture, to compensate for the temperature driftWith the combined approach, the bias instability is improved to less than 13 μ , and the drift of the

Keywords： Bias drift     Closed-loop MEMS accelerometer     Modulated feedback approach     Temperature compensation    

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The use of Artificial Neural Networks to estimate seismic damage and derive vulnerability functions for

Tiago Miguel FERREIRA, João ESTÊVÃO, Rui MAIO, Romeu VICENTE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 609-622 doi: 10.1007/s11709-020-0623-6

Abstract: The analysis is carried out on the basis of a vulnerability index computed with a hybrid seismic vulnerabilityassessment methodology, which is subsequently used as input to both approaches.computer routine that uses the ANN as an approximation function is developed and applied to derive a new vulnerabilitydeveloped in this study allowed to obtain much better approximations than those achieved with the original vulnerabilitySimilarly, the proposed vulnerability curve expression was found to provide a more accurate damage prediction

Keywords： Artificial Neural Networks     seismic vulnerability     masonry buildings     damage estimation     vulnerability curves    

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Technology on settlement monitoring and evaluation in bridge pier in Beijing-Tianjin inter-city railway

Ding Yuanwen

Strategic Study of CAE 2009, Volume 11, Issue 1,   Pages 43-47

Abstract: model and determinant conditions of settlement are proposed simultaneously, taking Beijing-Tianjin inter-city

Keywords： Beijing-Tianjin inter-city railway     bridge     settlement monitoring     evaluation    

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Impact of inter-fuel substitution on energy intensity in Ghana

Boqiang LIN, Hermas ABUDU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 27-41 doi: 10.1007/s11708-019-0656-5

Abstract: Energy intensity and elasticity, together with inter-fuel substitution are key issues in the currentAn inter-fuel substitution future scenario design was further conducted and the results were positive

Keywords： energy intensity     energy elasticity     inter-fuel substitution prospects     energy contribution     Translog production    

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The Research on Measurement of Drift in the Evaluation Conclusion of Single Method

Chen Guohong,Li Meijuan,Chen Yantai

Strategic Study of CAE 2004, Volume 6, Issue 3,   Pages 58-63

Abstract:

In this paper drifting nature in the evaluation conclusion of single method is investigated in order to offer the experiment basis for combination evaluation. First, real evaluation problems are divided into 3 classes and emulation experiments are carried on them separately. Then, objects to be evaluated are generated by Matlab 6.1, and are evaluated by using different methods. Third, the compatibility of the comprehensive evaluation methods is discriminated. Finally, the average of the compatible methods is adopted as reference frame in order to measure drifting degree of each method quantitatively.

Keywords： comprehensive evaluation methods     computer simulation experiment     measurement of drift    

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Experimental investigation and comparative study of inter-turn short-circuits and unbalanced voltage

Fatima BABAA, Abdelmalek KHEZZAR, Mohamed el kamel OUMAAMAR

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 271-278 doi: 10.1007/s11708-013-0258-6

Abstract: difficult to distinguish between the current harmonics due to the supply voltage and those originated by inter-turnand the reliability of the diagnostic system, it is crucial to provide the relationship between the inter-turn

Keywords： induction machines     fault indicator     inter-turn short-circuit fault     unbalance supply voltage    

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Title Author Date Type Operation

Seismic fragility assessment of revised MRT buildings considering typical construction changes

Rakesh DUMARU, Hugo RODRIGUES, Humberto VARUM

Journal Article

Seismic vulnerability assessment of water supply network in Tianjin, China

Yanxi CHEN,Zhiguang NIU,Jiaqi BAI,Yufei WANG

Journal Article

Application of BCP-2007 and UBC-97 in seismic vulnerability assessment of gravity designed RC buildings

Muhammad Usman ALI, Shaukat Ali KHAN, Muhammad Yousaf ANWAR

Journal Article

Assessing the impact on groundwater safety of inter-basin water transfer using a coupled modeling approach

Haifeng JIA,Shidong LIANG,Yansong ZHANG

Journal Article

Assessment of robustness of structures: Current state of research

Colin BRETT, Yong LU

Journal Article

Liquefaction assessment using microtremor measurement, conventional method and artificial neural network

Sadegh REZAEI,Asskar Janalizadeh CHOOBBASTI

Journal Article

Controlling interstory drift ratio profiles via topology optimization strategies

Journal Article

Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Journal Article

Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,

Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH

Journal Article

A combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Journal Article

The use of Artificial Neural Networks to estimate seismic damage and derive vulnerability functions for

Tiago Miguel FERREIRA, João ESTÊVÃO, Rui MAIO, Romeu VICENTE

Journal Article

Technology on settlement monitoring and evaluation in bridge pier in Beijing-Tianjin inter-city railway

Ding Yuanwen

Journal Article

Impact of inter-fuel substitution on energy intensity in Ghana

Boqiang LIN, Hermas ABUDU

Journal Article

The Research on Measurement of Drift in the Evaluation Conclusion of Single Method

Chen Guohong,Li Meijuan,Chen Yantai

Journal Article

Experimental investigation and comparative study of inter-turn short-circuits and unbalanced voltage

Fatima BABAA, Abdelmalek KHEZZAR, Mohamed el kamel OUMAAMAR

Journal Article