Resource Type

Journal Article 414

Conference Videos 3

Year

2023 34

2022 29

2021 28

2020 16

2019 23

2018 19

2017 25

2016 15

2015 12

2014 11

2013 11

2012 10

2011 16

2010 30

2009 28

2008 29

2007 17

2006 8

2005 13

2004 9

open ︾

Keywords

compressive strength 6

self-assembly 6

technique 4

different 3

1 2

CO2 capture 2

Energy harvesting 2

Simulation 2

finite element method 2

frequency 2

key technique 2

mining technique 2

nondestructive testing 2

optimization 2

organogelator 2

parametric study 2

safety assessment 2

self-centering 2

self-compacting concrete 2

open ︾

Search scope:

排序： Display mode:

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 228-233 doi: 10.1007/s11709-009-0019-0

Abstract: The application of pile-end post-grouting piles for super-large bridge pile foundations in some important projects was introduced in this paper. There are totally 21 test piles. The maximum pile diameter varies from 2.5 m to 3 m, and the maximum length is 125 m; the bearing capacity of the post-grouting piles is over ten thousands tons. Based on the test results, the bearing capacity, displacement, and bearing characteristic before and after grouting were analyzed. The results show that the bearing capacity of the piles are increased in different degrees after grouting although the technical parameters, including the patterns of grouting pipes, pressure, dosages of cement, duration of grouting lasting time, are different. However, the obtained values are very discrete. In addition, the calculation formula for the post-grouting piles under specified grouting condition was deduced based on the statistics analysis results of 57 test piles. The research results have been applied in the design of bridge foundation.

Keywords： self-balanced testing technique     pile-end post-grouting     bearing capacity     grouting technology    

HTML PDF Collect

Sonic General Non-destructive Testing Technique

Chen Jimao

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 64-69

Abstract:

This paper describes new general multi-mode non-destructive testing (NDT) of composite materials andThis technique which is based on sonic and ultrasonic testing performs five different modes of testing

Keywords： sonic general testing     general non-destructive testing (NDT)     non-destructive testing of composite materials     mechanical impedance analysis (MIA)     vibration analysis (VA)     resonance testing    

HTML PDF Collect

Novel sensing techniques for full-scale testing of civil structures

Kaoshan DAI, Zhenhua HUANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 240-256 doi: 10.1007/s11709-012-0172-8

Abstract: Performing full-scale structural testing is an important methodology for researchers and engineers inFull scale testing helps the researchers understand civil infrastructures’ loading scenarios, behaviorsTo conduct a full-scale structural testing, sensors are used for data acquisitions.effective sensors, this study reviewed and categorized new sensing techniques for full-scale structural testingThe researchers of this study categorized sensors used for civil-infrastructure testing into traditional

Keywords： sensing technique     full-scale testing     wireless sensor     remote sensing     LiDAR     laser vibrometer    

HTML PDF Collect

New experimental technique to determine coal self-ignition duration

ZHANG Xinhai, XI Guang, ZHANG Xinhai

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 479-483 doi: 10.1007/s11708-008-0058-6

Abstract: An artificial neural network (ANN) model was adopted to simulate the relationship between self-ignitionrate, carbon monoxide as well as carbon dioxide generation rate of coal at different temperatures of selfdevice was designed and the experimental condition and the size of the test tube were determined for testingthe oxygen consumption and the gases generation rate of coal during self-heating process.less than 1% of coal sample and 10% of time are required with an error of less than 3 days to test self-ignition
HTML PDF Collect

Self-Powered Active Vibration Control: Concept, Modeling, and Testing Article

Jin-Yang Li, Songye Zhu

Engineering 2022, Volume 11, Issue 4,   Pages 126-137 doi: 10.1016/j.eng.2021.03.022

Abstract: As an innovative solution to this problem, an unprecedented self-powered active vibration control systemThe self-powering ability of the system was confirmed based on a detailed power flow analysis of vibrationA self-powered actively controlled actuator was designed and applied to a scaled active vibration isolation

Keywords： Self-powered active vibration control     Energy harvesting     Skyhook control     Power equilibrium     Smart control    

HTML PDF Collect

Heavy vehicle dynamics with balanced suspension based on enveloping tire model

Yongjie LU, Shaopu YANG, Shaohua LI

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 476-482 doi: 10.1007/s11465-010-0120-z

Abstract: Based on D’Alembert principle, an integral balanced suspension (IBS) model is established, consideringThe sprung mass accelera- tion and tire dynamic force for balanced suspension and the traditional quarter-vehicle

Keywords： heavy vehicle     integral balanced suspension     enveloping properties     ride comfort     road-friendliness    

HTML PDF Collect

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract:

To predict more precisely the frequency of force-balanced micro accelerometer with different bias

Keywords： Micro-Electro-Mechanical Systems (MEMS)     micro accelerometer     force-balanced micro accelerometer     frequency    

HTML PDF Collect

Review of challenges and strategies for balanced urban–rural environmental protection in China

Beidou XI,Xiaoguang LI,Jixi GAO,Ying ZHAO,Hongliang LIU,Xunfeng XIA,Tianxue YANG,Lieyu ZHANG,Xuan JIA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 371-384 doi: 10.1007/s11783-014-0744-z

Abstract: To eliminate the gap between rural and urban environmental protection, and achieve the goal of “balanced

Keywords： urban environment     rural environment     balanced urban–rural environmental protection     framework of balanced    

HTML PDF Collect

Progress in terahertz nondestructive testing: A review

Shuncong ZHONG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 273-281 doi: 10.1007/s11465-018-0495-9

Abstract: Recently, THz nondestructive testing (NDT) technology has become an interesting topic.This review presents the significance and advantages provided by the emerging THz NDT technique.

Keywords： terahertz pulsed imaging (TPI)     nondestructive testing (NDT)     composite material     thermal barrier coating    

HTML PDF Collect

Fuzzy Comprehensive Performance Evaluation Method for Chained Operation Based on Balanced Score Card

Cao Jie,Cao Guo,He Jianmin

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 90-96

Abstract:

From the views of balanced score card,a series of indexes and a fuzzy

Keywords： chained operation     balanced score card     performance evaluation     fuzzy comprehensive evaluation    

HTML PDF Collect

Degree of bending of concrete-filled rectangular hollow section K-joints under balanced-axial loadings

Rui ZHAO; Yongjian LIU; Lei JIANG; Yisheng FU; Yadong ZHAO; Xindong ZHAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 461-477 doi: 10.1007/s11709-022-0818-0

Abstract: robust finite element (FE) analysis was carried out to calculate the DoB of CFRHS K-joints under balanced-axial

Keywords： fatigue assessment     K-joint     design equations     degree of bending     fracture mechanics    

HTML PDF Collect

Permeability testing of drilling core sample from pavement

WANG Suda, TANG Zhengguang, NING Xiaojun, WU Peiguan, XING Pingyi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 391-394 doi: 10.1007/s11709-008-0045-3

Abstract: equipment is used to measure the permeability coefficient of the pavement drilling core sample and relevant testingTesting drilling core samples from a certain highway of Yunnan province has been proven to be feasible

Keywords： province     material     feasible     permeability coefficient     equipment    

HTML PDF Collect

Analogue Difference Balanced Function and Its Applications

Zhang Wenying,Li Shiqu

Strategic Study of CAE 2004, Volume 6, Issue 3,   Pages 45-52

Abstract: concept of analogous difference of Boolean function, and call the Boolean function an analogue difference balancedfunction if whose analogous difference is balanced at any nonzero point.

Keywords： function     2-radical expansion     analogue difference     analogue auto-correlation function     analogue difference balanced    

HTML PDF Collect

Shaking table testing of hard layered soil-pile-structure interaction system

LI Peizhen, REN Hongmei, LU Xilin, SONG Heping, CHEN Yueqing

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 346-352 doi: 10.1007/s11709-007-0046-7

Abstract: Shaking table tests on a dynamic interaction system of hard layered soil, pile foundation and frame structure were carried out. The earthquake damage of the superstructure and foundation was reproduced. Based on these tests, several key issues about the seismic response of the dynamic soil-structure interaction (SSI) system were studied. The natural frequency of the system was less than that of the structure on rigid foundation if the SSI is not taken into account, while its damping ratio was larger than that of the structure. The mode shape of the system was different from that of the structure on the fixed base in that there were rocking and swinging at the foundation. Magnification or reduction of vibration transferred by soil was related to soil characteristic, excitation magnitude, and so on. Generally, sand magnifies vibration, while viscous powder soil dampens vibration. The components of the acceleration response at the top of the superstructure were based on the relative magnitude of the rocking stiffness, the swing stiffness of the foundation and the stiffness of the super-structure. The multi-direction excitations have little effect on the key issues of the horizontal SSI.

Keywords： super-structure     Generally     Magnification     frequency     different    

HTML PDF Collect

Experimental monitoring of the strengthening construction of a segmental box girder bridge and field testing

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: Prestressed concrete segmental box girder bridges are composed of short concrete segments that are either precast or cast in situ and then joined together by longitudinally post-tensioning internal, external, or mixed tendons. The objectives of this study are to monitor the construction process of the external prestressing tendons to strengthen the bridge structure and perform a field load test to measure the strain and the deflection of the anchorage devices of the external prestressing tendons to determine the state of these devices after tension forces are applied. The monitoring process of the external prestressing tendons construction includes inspecting the cracks in the diaphragm anchorage and the deviation block devices before the tension forces are applied to the external tendons; measuring the deformation of the steel deviation cross beam during the tension process; measuring the deformation of the box girder after different levels of tension forces are applied; measuring the elongation of the external tendons in each level of the tension; and measuring the natural frequency of the external tendons after the tension process is complete. The results of the monitoring process show that the measured values of the deformation, the elongation, and the natural frequency meet the requirements. Therefore, there is no damage during the construction and the tensioning of the external prestressing tendons. A field load test is performed to the anchorage beam, the steel deviation block devices, and the steel deviation cross beam. The field load test results of the anchorage devices show that the values of the strains, the stresses, and the deflection are less than the respective allowable limit values in the requirements. Therefore, the anchorage devices have sufficient strength, and the working state is good after the tension forces are applied to the external prestressing tendons.

Keywords： prestressed concrete     box girder     monitoring     external tendons     strain     deflection    

HTML PDF Collect

Title Author Date Type Operation

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Journal Article

Sonic General Non-destructive Testing Technique

Chen Jimao

Journal Article

Novel sensing techniques for full-scale testing of civil structures

Kaoshan DAI, Zhenhua HUANG

Journal Article

New experimental technique to determine coal self-ignition duration

ZHANG Xinhai, XI Guang, ZHANG Xinhai

Journal Article

Self-Powered Active Vibration Control: Concept, Modeling, and Testing

Jin-Yang Li, Songye Zhu

Journal Article

Heavy vehicle dynamics with balanced suspension based on enveloping tire model

Yongjie LU, Shaopu YANG, Shaohua LI

Journal Article

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Journal Article

Review of challenges and strategies for balanced urban–rural environmental protection in China

Beidou XI,Xiaoguang LI,Jixi GAO,Ying ZHAO,Hongliang LIU,Xunfeng XIA,Tianxue YANG,Lieyu ZHANG,Xuan JIA

Journal Article

Progress in terahertz nondestructive testing: A review

Shuncong ZHONG

Journal Article

Fuzzy Comprehensive Performance Evaluation Method for Chained Operation Based on Balanced Score Card

Cao Jie,Cao Guo,He Jianmin

Journal Article

Degree of bending of concrete-filled rectangular hollow section K-joints under balanced-axial loadings

Rui ZHAO; Yongjian LIU; Lei JIANG; Yisheng FU; Yadong ZHAO; Xindong ZHAO

Journal Article

Permeability testing of drilling core sample from pavement

WANG Suda, TANG Zhengguang, NING Xiaojun, WU Peiguan, XING Pingyi

Journal Article

Analogue Difference Balanced Function and Its Applications

Zhang Wenying,Li Shiqu

Journal Article

Shaking table testing of hard layered soil-pile-structure interaction system

LI Peizhen, REN Hongmei, LU Xilin, SONG Heping, CHEN Yueqing

Journal Article

Experimental monitoring of the strengthening construction of a segmental box girder bridge and field testing

Ali Fadhil NASER, Zonglin WANG

Journal Article