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Online since: January 2014
Authors: Da Zhi Wu, Zhen Ying Zhang
Study on the settlement of soft soil subgrade with a crust layer
Dazhi Wu1, a, Zhenying Zhang1,b
1School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, P.R.
Due to the long-term effects of water evaporation, lowering of groundwater level, load transfer, the precipitation of soluble salt and other ingredients, and some other factors, a thin layer with good engineering properties can be formed at the surface of the soft soil, this is the so-called crust layer [1, 2].
Jing Fei, Liu sonyu and Shao Guanghui: Chinese Journal of Geotechnical Engineering, Vol. 23(2001), p. 728-730
Zhou Ji, Zhao Shaowei and Cui Wuwen: Subgrade Engineering, Vol. 134(2007), p. 91-92.
Due to the long-term effects of water evaporation, lowering of groundwater level, load transfer, the precipitation of soluble salt and other ingredients, and some other factors, a thin layer with good engineering properties can be formed at the surface of the soft soil, this is the so-called crust layer [1, 2].
Jing Fei, Liu sonyu and Shao Guanghui: Chinese Journal of Geotechnical Engineering, Vol. 23(2001), p. 728-730
Zhou Ji, Zhao Shaowei and Cui Wuwen: Subgrade Engineering, Vol. 134(2007), p. 91-92.
Online since: October 2012
Authors: Yao Feng Xie
The Key Reconstruction Technology of the Changjiang Yihua Standingpile Wharf
Xie Yaofeng 1, a
1Department of Harbor and Waterway Engineering, Southeast University, Nanjing, China
axieyfseu@126.com
Keywords: wharf reconstruction, additional pile, drilling holes
Abstract.
The practical reinforcement of the bridging beam crest is 15.2 cm in the wharf engineering.
Salawu: Canadian Journal of Civil Engineering, Vol. 24 (1997), p. 218 [2] M.
Sinha: Journal of Transportation Engineering, Vol. 117 (1991), p. 320 [3] J.
The practical reinforcement of the bridging beam crest is 15.2 cm in the wharf engineering.
Salawu: Canadian Journal of Civil Engineering, Vol. 24 (1997), p. 218 [2] M.
Sinha: Journal of Transportation Engineering, Vol. 117 (1991), p. 320 [3] J.
Online since: March 2017
Authors: Shi Yong Jiang, Wei Fei, Wei Lai Yao, Xue Yang Li
Experiment and Numerical Simulation on Non-Magnetic Prestressed Beam
Shi Yong Jiang 1,a, Wei Fei 2,b, Wei Lai Yao 2,c, Xue Yang Li 2,c
1Department of Training, Logistical Engineering University, 401311, P.R China
2Department of Civil Engineering, Logistical Engineering University, 401311, P.R China
aJiangshiy1@163.com, b1063408903@qq.com, c1131015227@qq.com
Keywords: non-magnetic, prestress, carbon fiber reinforcement, numerical simulation
Abstract: In order to meet demanding of non-magnetic, changing the reinforcement ratio, the degree of prestress and cross section form, four partially prestressed concrete beam (3 T shape section, 1 rectangle section) were made with CFRP as longitudinal reinforcement and stirrup.
Journal of Zhejiang University (Science A: An International Applied Physics & Engineering Journal), 2009, 5: 003
Journal of Zhejiang University (Science A: An International Applied Physics & Engineering Journal), 2009, 5: 003
Online since: February 2012
Authors: Long Sheng Bao, Jun Zhang, Ling Yu, Guang Shan Zhu
The Comparison of Two Methods on the Reliability of Ship Collision for Bridge Based on Applied Mechanics
Longsheng Bao1, a, Jun Zhang1, b, Ling Yu1, c, Guangshan Zhu1, d
1College of Civil Engineering, Shenyang Jianzhu University, Shenyang, Liaoning, 110168, China
abaolongsheng710605@163.com, bzhangjun19870510@yahoo.com.cn, cyulingsy@163.com, dcegszhu@sjzu.edu.cn
Key words:The reliability analysis of ship-bridge collision; ANSYS; Response Surface Method; BOX-BEHNKEN; Monte-Carlo method
Abstract: As for the reliability of ship-bridge collision, function relation between the structure response variable and basic variable is very complex and the traditional theory has been difficult to work it out, so we need the help of finite element numerical method to obtain the solution.
The sampling of Monte-Carlo method is classified into three kinds, respectively Latin Hypercube Sampling, Direct Monte-Carlo Sampling, from the User-Defined Sampling, among which the Latin Hypercube Sampling avoids the direct method of repeated sampling and improves the engineering calculation efficiency.
Conclusions (1) In the practical engineering structure reliability calculation, when the structure of the failure probability is less than , the traditional Monte Carlo method sampling frequency is very large, occuping a very large computing time.
In some large complex for calculating reliability engineering, the response surface function is obtained by sampling analysis on structure, it can reflect the basic characteristics of the structure, it is of high precision, and, in some circumstances, the reliability of ODRSM-MCS even more accurate than the MSC.
The sampling of Monte-Carlo method is classified into three kinds, respectively Latin Hypercube Sampling, Direct Monte-Carlo Sampling, from the User-Defined Sampling, among which the Latin Hypercube Sampling avoids the direct method of repeated sampling and improves the engineering calculation efficiency.
Conclusions (1) In the practical engineering structure reliability calculation, when the structure of the failure probability is less than , the traditional Monte Carlo method sampling frequency is very large, occuping a very large computing time.
In some large complex for calculating reliability engineering, the response surface function is obtained by sampling analysis on structure, it can reflect the basic characteristics of the structure, it is of high precision, and, in some circumstances, the reliability of ODRSM-MCS even more accurate than the MSC.
Online since: November 2014
Authors: Shang Hua Wu, Shui Qing Xiao
Microstructure and Properties of Ti(C,N)-Based Cermets
Shuiqing XIAO 1,2,a, Shanghua WU1,b
1School of Electro-mechanical Engineering, Guangdong University of Technology,
Guangzhou 510006, China
2 Business College, Zhanjiang Normal University, Zhanjiang 524048, China
axn178@126.com, bswu@gdut.edu.cn
Keywords: Ti(C,N), Cermets, Microstructure
Abstract.
Ti(C,N)-based cermets have been also applied as refractory parts of jet engines, turbine engines, civil gasoline engines and diesel engines.
[5] Melisha Naidoo.Preparation of (Ti,Ta)(C,N)by Mechanical Alloying[D].Johannesburg,Faculty of Engineering and the Built Environment,University of Witwatersrand.August 2012:9
Titanium carbonitride-based cermets: processes and properties, Materials Science and Engineering. 163A(1993)141-148
Key Engineering Materials,264-268,(2004)1115-1118
Ti(C,N)-based cermets have been also applied as refractory parts of jet engines, turbine engines, civil gasoline engines and diesel engines.
[5] Melisha Naidoo.Preparation of (Ti,Ta)(C,N)by Mechanical Alloying[D].Johannesburg,Faculty of Engineering and the Built Environment,University of Witwatersrand.August 2012:9
Titanium carbonitride-based cermets: processes and properties, Materials Science and Engineering. 163A(1993)141-148
Key Engineering Materials,264-268,(2004)1115-1118
Online since: June 2009
Authors: Brian J. Walsh, Arturo González
Walsh1, a, Arturo González2,b
1,2 UCD School of Architecture, Landscape and Civil Engineering, Dublin, Ireland
a
brian.walsh@ucd.ie, barturo.gonzalez@ucd.ie
Keywords: Damage detection, system identification, cross-entropy method
Abstract This paper presents a novel approach for structural damage detection.
Law: Earthquake Engineering and Structural Dynamics, Vol. 26 (1997), p. 1259 [6] T.
Huang: Journal Engineering Mechanics, Vol. 130 (2004), p.85 [9] V.
Novak: Journal of Bridge Engineering, Vol. 3 (1998), p. 82 [10] R.
Law: Earthquake Engineering and Structural Dynamics, Vol. 26 (1997), p. 1259 [6] T.
Huang: Journal Engineering Mechanics, Vol. 130 (2004), p.85 [9] V.
Novak: Journal of Bridge Engineering, Vol. 3 (1998), p. 82 [10] R.
Online since: July 2003
Authors: Y.L. Xu, Zhi Chun Yang
China
2
Department of Civil and Structural Engineering
The Hong Kong Polytechnic University, Kowloon, Hong Kong, P.
Table 1 Parameters of the three-storey building and platform ][kgm ]/[ mkNk ]sec/.[ mkNc Third floor 175130 157610 145.6 Second floor 262690 315230 291.3 First floor 350250 4728400 4369 Platform A 70050 18694530 91458 Platform B 35025 9347265 45774 From the viewpoint of engineering practice, the isolating frequency of the platform should not be too low if considering that people walk on the platform during operations.
Agrawal: Structural Engineering and Mechanics Vol.10-6, (2000), p.561-567 [4] H.
Sain: Journal of Engineering Mechanics, ASCE, Vol.121-2, (1995), p. 322-338 [6] R.L.
Table 1 Parameters of the three-storey building and platform ][kgm ]/[ mkNk ]sec/.[ mkNc Third floor 175130 157610 145.6 Second floor 262690 315230 291.3 First floor 350250 4728400 4369 Platform A 70050 18694530 91458 Platform B 35025 9347265 45774 From the viewpoint of engineering practice, the isolating frequency of the platform should not be too low if considering that people walk on the platform during operations.
Agrawal: Structural Engineering and Mechanics Vol.10-6, (2000), p.561-567 [4] H.
Sain: Journal of Engineering Mechanics, ASCE, Vol.121-2, (1995), p. 322-338 [6] R.L.
Online since: January 2006
Authors: Xin Min Huang, Cheng Yong Yang
Early-Age Concrete Cover Crack and Its Effects on
Concrete Cover
Xin-Min Huang
1,a
, Cheng-Yong Yang
1,b
1
School of Architecture and Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
a
huangxinmin@tom.com, bc.y.yang@263.net
Keywords: Concrete cover; Crack; Carbonation; Durability; Limit State Reliability
Abstract.
Fatigue Fracture Engineering Materials, Structures 15, 1992, pp. 911-928
International Journal of Numerical Methods in Engineering, 33(6), 1992, pp. 1269-1287
Engineering Fracture Mechanics, 51(4), 1995, pp. 533-545
Fatigue Fracture Engineering Materials, Structures 15, 1992, pp. 911-928
International Journal of Numerical Methods in Engineering, 33(6), 1992, pp. 1269-1287
Engineering Fracture Mechanics, 51(4), 1995, pp. 533-545
Online since: January 2014
Authors: Fu Bin Yin, Shuang Hou, Xue Mei Wang, Wei Zhou, Zi Fu Li, Rui Feng, Hao Guo
The Influence of Total Solid and Inoculum Ratio on Thermophilic Anaerobic Digestion of Waste Activated Sludge
Fubin YIN1,a, Zifu LI1,b, Shuang HOU1,c, Rui FENG1,d, Wei ZHOU1,e,
Xuemei WANG1,f, Hao GUO1,g
1School of Civil and Environmental Engineering, University of Science and Technology Beijing, PR China
acarft_257@163.com, bzifulee@aliyun.com, chs_henan_2009@126.com,dfengrui19901016@163.com,ezhouweimyself@sina.com, fwangxuemei0000@126.com, gguohao.19900317@163.com
Keywords: Total solid; Inoculum ratio; Thermophilic anaerobic digestion; Biogas production; Process stability.
Chemical Engineering Journal. 133(2007) 335-342
Chemical Engineering Journal. 160(2010) 488-496
Increasing biogas production bythermal (70℃) sludge pre-treatment prior to thermophilic anaerobic digestion.Biochemical Engineering Journal. 42(2008) 186-192
Chemical Engineering Journal. 133(2007) 335-342
Chemical Engineering Journal. 160(2010) 488-496
Increasing biogas production bythermal (70℃) sludge pre-treatment prior to thermophilic anaerobic digestion.Biochemical Engineering Journal. 42(2008) 186-192
Online since: October 2013
Authors: Kai Hu, Bu Ying Xie, Li Jiang
A Constraint Solving System and Approach based on Graph Theory and Floating DOF
Li Jiang1, a, Buying Xie1,a and Kai Hu1,2,b
1College of Civil Engineering, Tongji University, Shanghai, China
2Research Dept.
Of Technical Center, China Shipbuilding NDRI Engineering Co., Ltd, Shanghai, China ayoulin_popo@126.com, bwhocannet@163.com Keywords: Computer graphics; Parametric design; Geometry constraint system; DOF analysis Abstract.
Summary Geometric constraint model is a very important concept in modern engineering with the function of clearly expression of the parameter structure and effectively giving a reasonable solution to drive the model.
[6] Chunlai, “Improvement of concurrent geometry constraints problem based on DOF analysis,” Computer Engineering and Applications.
Of Technical Center, China Shipbuilding NDRI Engineering Co., Ltd, Shanghai, China ayoulin_popo@126.com, bwhocannet@163.com Keywords: Computer graphics; Parametric design; Geometry constraint system; DOF analysis Abstract.
Summary Geometric constraint model is a very important concept in modern engineering with the function of clearly expression of the parameter structure and effectively giving a reasonable solution to drive the model.
[6] Chunlai, “Improvement of concurrent geometry constraints problem based on DOF analysis,” Computer Engineering and Applications.