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Seismic curvature attributes and their application to seismic interpretation

Bai Guanjun,Zhao Rumin,Yang Songling, Li Peipei

Strategic Study of CAE 2011, Volume 13, Issue 5,   Pages 23-27

Abstract:

Based on the theory of seismic curvature attributes, this paper analyzedfeatures of seismic curvature attributes and found out effective seismic curvature attributes to interpretThe attributes are usually related to seismic horizon's geometric shapes(like dip, azimuth and curvatureof the amplitude.These tiny varieties show small linear structure on curvature attribute of the seismicThe applications show that it is effective and convenient to interpret faults using seismic curvature

Keywords: seismic curvature     fault interpretation     sedimentary bodies interpretation     3D interpreted horizon    

Moment-curvature relationship of FRP-concrete-steel double-skin tubular members

Mingxue LIU, Jiaru QIAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 25-31 doi: 10.1007/s11709-009-0012-7

Abstract: The strip method was used to calculate the section moment-curvature curves of the 3 specimens and 12analysis resulted in a simplified formula for the flexural strength of DSTMs and a tri-linear moment-curvature

Keywords: fiber reinforced polymer (FRP)     concrete     steel     double-skin tubular members (DSTMs)     moment-curvature curve    

Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 610-621 doi: 10.1007/s11465-020-0596-0

Abstract: The design, fabrication, and testing of soft sensors that measure elastomer curvature and mechanicalSecond, the relationship between curvature and resistance is determined.Experiments show that the sensors exhibit high accuracy when the curvature changes within a certain rangeExperiments show that soft curvature sensors can effectively reflect mechanical finger bending and can

Keywords: soft sensor     Ga-In-Sn alloy     strain sensing     curvature sensing     mechanical finger bending    

The Application of Moving Frame in the Calculation of Spiral Bevel Gear’s Principal Curvature

Wang Yuqing,Liang Jian

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 68-70

Abstract:

the calculation of contacted points´ principal curvature is the key to determine contacted areaTraditionally, the method of determining principal curvature is to make use of the theory of mesh andmoving frame and co-differential are employed to give a sententious, effective algorithm of principal curvatureThis algorithm can be used for calculation of principal curvature in all kinds of curve surfaces.

Keywords: spiral bevel gear     principal curvature     moving frame    

Effects of fiber curvature on the microstructure of the interfacial transition zone in fresh concrete

CHEN Huisu, SUN Wei, ZHAO Qingxin, L. J. Sluys, P. Stroeven

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1,   Pages 99-106 doi: 10.1007/s11709-007-0010-6

Abstract: However, no information is available on the influence of the curvature of a rigid surface on the microstructureThis paper employed computer simulation technology to study the influence of fiber curvature on the initialspherical particles system is mono-size or multi-size, the fresh ITZ s microstructure is irrelevant to the curvature

Keywords: diameter     initial microstructure     influence     surface     spherical particle    

Extracting hand articulations from monocular depth images using curvature scale space descriptors

Shao-fan WANG,Chun LI,De-hui KONG,Bao-cai YIN

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 1,   Pages 41-54 doi: 10.1631/FITEE.1500126

Abstract:

We propose a framework of hand articulation detection from a monocular depth image using curvature

Keywords: Curvature scale space (CSS)     Hand articulation     Convex hull     Hand contour    

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: A new method to test the seismic performance of prefabricated specimens for underground assembled structuresIndices related to the seismic performance and damage modes are analyzed comprehensively to reveal theAdditionally, the strata restraint effect significantly affects the seismic performance and damage modeAn FE model that can be used to conduct a seismic performance study of prefabricated specimens for underground

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

Effects of green roof damping and configuration on structural seismic response

Frontiers of Structural and Civil Engineering   Pages 1133-1144 doi: 10.1007/s11709-023-0959-9

Abstract: To expand their usage, their inherent damping and layout sensitivity to seismic performance are investigated

Keywords: green infrastructure     green roof     structural resilience     seismic design    

Performance-based seismic assessment of a historical masonry arch bridge: Effect of pulse-like excitations

Frontiers of Structural and Civil Engineering   Pages 855-869 doi: 10.1007/s11709-023-0972-z

Abstract: Seismic analysis of historical masonry bridges is important for authorities in all countries hostingFifteen seismic records were considered and categorized as far-field, pulse-like near-field, and non-pulse-like

Keywords: masonry arch bridges     seismic behavior     modal properties     pulse-like records     nonlinear time history    

Variability of waste copper slag concrete and its effect on the seismic safety of reinforced concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 117-130 doi: 10.1007/s11709-021-0788-7

Abstract: In addition, the paper presents a reliability-based seismic risk assessment of a typical waste copperThe results show that waste copper slag can be safely used for seismic resistant structures as it results

Keywords: waste copper slag     quantification of variability     goodness-of-fit test     seismic risk assessment     PSDM    

Efficiency of scalar and vector intensity measures for seismic slope displacements

Gang WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 44-52 doi: 10.1007/s11709-012-0138-x

Abstract: empirical prediction models as well as the ground motion selection criteria for time domain analysis of seismic

Keywords: seismic slope displacements     intensity measures     empirical prediction    

Experiment and calculation on seismic behavior of RC composite core walls with concealed steel truss

Wanlin CAO , Weihua CHANG , Changjun ZHAO , Jianwei ZHANG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 255-261 doi: 10.1007/s11709-009-0043-0

Abstract: To improve the seismic performance of reinforced concrete core walls, reinforced concrete composite coreThe experimental study on seismic performance under cyclic loading was carried out.The test results showed that the seismic performance of core walls is improved greatly by the concealed

Keywords: reinforced concrete     steel truss     core walls     seismic performance    

Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1095-1104 doi: 10.1007/s11709-019-0538-2

Abstract: Side joint is the weak region of PCS concrete frame and has great influence on seismic behavior of theThus systematically study on the seismic behavior of PCS concrete side joint is necessary.This paper presents a finite element study on behavior of the side joint under seismic loading.In addition, the overall seismic behavior of the side joints in PCS concrete is better than that of the

Keywords: PCS concrete side joint     numerical simulation     fiber-beam element joint model     solid element joint model     seismic    

Influence of site conditions on seismic design parameters for foundations as determined via nonlinear

Muhammad Tariq A. CHAUDHARY

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 275-303 doi: 10.1007/s11709-021-0685-0

Abstract: geotechnical properties and the geological setting, influence the near-surface response of strata subjected to seismicthe last three parameters are sensitive to the level of nonlinear strain induced in the strata due to seismicIt was also found that variations in soil properties influenced seismic design parameters in soil typePredictive relationships for , , and were derived based on the 1D seismic site response analysisThe need to incorporate and in the metrics for determining , , and for the seismic design of

Keywords: site effects     1D seismic site response analysis     sensitivity analysis     foundations     shear wave velocity     soil    

A hybrid LQR-PID control design for seismic control of buildings equipped with ATMD

Amir Hossein HEIDARI, Sadegh ETEDALI, Mohamad Reza JAVAHERI-TAFTI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 44-57 doi: 10.1007/s11709-016-0382-6

Abstract: LQR-PID controller, while having the advantage of the classical PID controller, is easy to implement in seismic-excitedoptimization procedure based on a cuckoo search (CS) algorithm, the LQR-PID controller is designed for a seismicsimulation results indicate that the LQR-PID performs better than the LQR controller in reduction of seismic

Keywords: seismic control     tuned mass dampers     cuckoo search     PID controller     LQR controller    

Title Author Date Type Operation

Seismic curvature attributes and their application to seismic interpretation

Bai Guanjun,Zhao Rumin,Yang Songling, Li Peipei

Journal Article

Moment-curvature relationship of FRP-concrete-steel double-skin tubular members

Mingxue LIU, Jiaru QIAN

Journal Article

Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Journal Article

The Application of Moving Frame in the Calculation of Spiral Bevel Gear’s Principal Curvature

Wang Yuqing,Liang Jian

Journal Article

Effects of fiber curvature on the microstructure of the interfacial transition zone in fresh concrete

CHEN Huisu, SUN Wei, ZHAO Qingxin, L. J. Sluys, P. Stroeven

Journal Article

Extracting hand articulations from monocular depth images using curvature scale space descriptors

Shao-fan WANG,Chun LI,De-hui KONG,Bao-cai YIN

Journal Article

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

Journal Article

Effects of green roof damping and configuration on structural seismic response

Journal Article

Performance-based seismic assessment of a historical masonry arch bridge: Effect of pulse-like excitations

Journal Article

Variability of waste copper slag concrete and its effect on the seismic safety of reinforced concrete

Journal Article

Efficiency of scalar and vector intensity measures for seismic slope displacements

Gang WANG

Journal Article

Experiment and calculation on seismic behavior of RC composite core walls with concealed steel truss

Wanlin CAO , Weihua CHANG , Changjun ZHAO , Jianwei ZHANG ,

Journal Article

Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Journal Article

Influence of site conditions on seismic design parameters for foundations as determined via nonlinear

Muhammad Tariq A. CHAUDHARY

Journal Article

A hybrid LQR-PID control design for seismic control of buildings equipped with ATMD

Amir Hossein HEIDARI, Sadegh ETEDALI, Mohamad Reza JAVAHERI-TAFTI

Journal Article