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Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 412-423 doi: 10.1007/s11709-017-0416-8

Abstract: cracking moment together with the influences of ultimate moment capacity and service moment on the instantaneousdeflection of slabs are studied.existing models in the literature shows considerable differences between the recorded and estimated instantaneousdeflection of LWC slabs.deflection of LWC slabs subjected to loading at the age of 14 d.

Keywords： instantaneous deflection     light-weight concrete     expanded polystyrene     effective moment of inertia     cracking    

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Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0961-2

Abstract: This study develops equations to predict the existing pile bending moment and deflection produced bypractically unfeasible to obtain measurement data; hence, artificial data for the bending moment and deflectionThe estimation results of the developed equations can provide satisfactory pile bending moment and deflection

Keywords： pile responses     excavation     prediction     deflection     bending moments    

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract:

As the instant centers in planar mechanisms, the instantaneous poles (or instant poles, in brief)

Keywords： spherical mechanisms     instantaneous poles     great circle     angular velocity    

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A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 344-353 doi: 10.1007/s11465-014-0320-z

Abstract:

This paper is a detailed exploration of instantaneous poles for a class of two-degree-of-freedom (For two-DOF SMs, the secondary instantaneous poles (the ones which cannot be found by direct inspection

Keywords： spherical mechanisms     instantaneous poles     Aronhold-Kennedy theorem     great circles     pencil of meridian    

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Modeling of large-deflection links for compliant mechanisms

Zhonglei FENG, Yueqing YU, Wenjing WANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 294-301 doi: 10.1007/s11465-010-0019-8

Abstract: In this study, a new approach of a two-DOF PRBM is proposed to simulate both the tip locus and tip deflectionangle of large-deflection links for compliant mechanisms on the basis of the angular deflection approximation

Keywords： compliant mechanism     pseudo-rigid-body model (PRBM)     large-deflection link     angular deflection approximation    

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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: springs and especially designed cams, which could perform a predefined relationship between torque and deflectionAn analytical methodology that maps the predefined relationship between torque and deflection to theSimulations of different torque‒deflection profiles were carried out to verify the accuracy and applicabilityof performing predefined torque‒deflection profiles.Three kinds of prototype experiments, including verification experiment of the predefined torque‒deflection

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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Thermal deflection analysis of the solidified shell in continuous casting of slab

LIU Hongzhao, WANG Zhongmin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 175-179 doi: 10.1007/s11465-007-0029-3

Abstract: reciprocal theorem of work or Betti-Maxwell s reciprocal theorem and the superposition principle, the deflectionThe meaning of each term in the deflection expression obtained by the reciprocal theorem of work is explained

Keywords： s reciprocal     loading     deflection expression     reciprocal     opposite    

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The Finite Element Analysis for Supporting Wheel Deflection’s Contact of Large-scale Rotary Kiln With

Li Xuejun,Zhang Meiyang,Chu Fulei

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 16-20

Abstract:

Because of the influence of rotary kiln supporting wheel's deflectioncontact area's contact stress,  according to Hertz contact theory,  the relative among deflectionelement method,  the contact problems when supporting wheel is under parallel and the maximum deflection

Keywords： large-scale with multi-supporting     supporting wheel deflection     contact stress     finite element analysis    

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analysis of thin-walled box continuous girder with variable cross-sections in considering effect of large deflection

Yuji CHEN, Qizhi LUO,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 352-356 doi: 10.1007/s11709-009-0057-7

Abstract: vertical displacement, and evolving five generalized displacements with the spline function, the large deflectionThe effect of large deflection on the stress and displacement of the thin-walled box continuous girder

Keywords： thin-walled box girder with variable cross-sections     potential variational theory     shear lag     large deflection    

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Deflection Analysis of RC Beam Strengthened by Epoxy-bonded Glass Fiber Reinforced Plastic Plate

Duan Jingmin,Qian Yongjiu,Zeng Xiantao

Strategic Study of CAE 2004, Volume 6, Issue 10,   Pages 79-82

Abstract: In this paper, the pulling force of GFRP plate and the deflection of the plated beam have been analyzed

Keywords： strengthening     GFRP     RC beam     deflection    

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Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

Masoud ABEDINI, Azrul A. MUTALIB, Chunwei ZHANG, Javad MEHRMASHHADI, Sudharshan Naidu RAMAN, Roozbeh ALIPOUR, Tohid MOMENI, Mohamed H. MUSSA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 532-553 doi: 10.1007/s11709-020-0604-9

Abstract: Reinforced concretes (RC) have been widely used in constructions. In construction, one of the critical elements carrying a high percentage of the weight is columns which were not used to design to absorb large dynamic load like surface bursts. This study focuses on investigating blast load parameters to design of RC columns to withstand blast detonation. The numerical model is based on finite element analysis using LS-DYNA. Numerical results are validated against blast field tests available in the literature. Couples of simulations are performed with changing blast parameters to study effects of various scaled distances on the nonlinear behavior of RC columns. According to simulation results, the scaled distance has a substantial influence on the blast response of RC columns. With lower scaled distance, higher peak pressure and larger pressure impulse are applied on the RC column. Eventually, keeping the scaled distance unchanged, increasing the charge weight or shorter standoff distance cause more damage to the RC column. Intensive studies are carried out to investigate the effects of scaled distance and charge weight on the damage degree and residual axial load carrying capacity of RC columns with various column width, longitudinal reinforcement ratio and concrete strength. Results of this research will be used to assessment the effect of an explosion on the dynamic behavior of RC columns.

Keywords： RC column     scaled distance     blast load     LS-DYNA    

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Calculation Method of Explosively Formed Projectile Velocity

Zhao Huiying,Shen Zhaowu

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 62-65

Abstract:

From the theory of instantaneous expansion of detonation product and

Keywords： explosively formed projectile (EFP)     instantaneous expansion of detonation product     momentum conservation    

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Experimental monitoring of the strengthening construction of a segmental box girder bridge and field testing of external prestressing tendons anchorage

Ali Fadhil NASER, Zonglin WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 308-320 doi: 10.1007/s11709-012-0140-3

Abstract: tendons to strengthen the bridge structure and perform a field load test to measure the strain and the deflectionload test results of the anchorage devices show that the values of the strains, the stresses, and the deflection

Keywords： prestressed concrete     box girder     monitoring     external tendons     strain     deflection    

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Vibration testing of a steel girder bridge using cabled and wireless sensors

Dapeng ZHU, Yang WANG, James BROWNJOHN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 249-258 doi: 10.1007/s11709-011-0113-y

Abstract: Operating deflection analysis is successfully conducted using the wireless measurement of traffic and

Keywords： wireless sensing     structural health monitoring (SHM)     signal conditioning     operating deflection analysis    

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A Cell Condition-Sensitive Frequency Segmentation Method Based on the Sub-Band Instantaneous Energy Spectrum Article

Zhaohui Zeng, Weihua Gui, Xiaofang Chen, Yongfang Xie, Hongliang Zhang, Yubo Sun

Engineering 2021, Volume 7, Issue 9,   Pages 1282-1292 doi: 10.1016/j.eng.2020.11.012

Abstract: Based on the qualitative analysis of the cell voltage, the sub-band instantaneous energy spectrum (SIEPCompared with the instantaneous energy spectrum based on empirical mode decomposition, the SIEP more

Keywords： Sub-band instantaneous energy spectrum     Cell condition-sensitive frequency band     Frequency segmentation    

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Title Author Date Type Operation

Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Journal Article

Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Journal Article

On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Modeling of large-deflection links for compliant mechanisms

Zhonglei FENG, Yueqing YU, Wenjing WANG,

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

Thermal deflection analysis of the solidified shell in continuous casting of slab

LIU Hongzhao, WANG Zhongmin

Journal Article

The Finite Element Analysis for Supporting Wheel Deflection’s Contact of Large-scale Rotary Kiln With

Li Xuejun,Zhang Meiyang,Chu Fulei

Journal Article

analysis of thin-walled box continuous girder with variable cross-sections in considering effect of large deflection

Yuji CHEN, Qizhi LUO,

Journal Article

Deflection Analysis of RC Beam Strengthened by Epoxy-bonded Glass Fiber Reinforced Plastic Plate

Duan Jingmin,Qian Yongjiu,Zeng Xiantao

Journal Article

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

Masoud ABEDINI, Azrul A. MUTALIB, Chunwei ZHANG, Javad MEHRMASHHADI, Sudharshan Naidu RAMAN, Roozbeh ALIPOUR, Tohid MOMENI, Mohamed H. MUSSA

Journal Article

Calculation Method of Explosively Formed Projectile Velocity

Zhao Huiying,Shen Zhaowu

Journal Article

Experimental monitoring of the strengthening construction of a segmental box girder bridge and field testing of external prestressing tendons anchorage

Ali Fadhil NASER, Zonglin WANG

Journal Article

Vibration testing of a steel girder bridge using cabled and wireless sensors

Dapeng ZHU, Yang WANG, James BROWNJOHN

Journal Article

A Cell Condition-Sensitive Frequency Segmentation Method Based on the Sub-Band Instantaneous Energy Spectrum

Zhaohui Zeng, Weihua Gui, Xiaofang Chen, Yongfang Xie, Hongliang Zhang, Yubo Sun

Journal Article