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Combined Iteration Method of Load Identification for A Complex Structure with Nonlinearity Yuhua Liu, Zhijun Li, Xuefeng Zhou, Wei Hou School of Civil and Architecture Engineering, Xi’an Technological University, Xi’an,Shaanxi Province, China liuyh@stu.xjtu.edu.cn Keywords: Nonlinear dynamical system; Load identification; Combined iteration method; Finite element method; Active control method Abstract.
However, the research objects of load identification mainly rest on linear system yet, which can’t meet the need of practical engineering because there are many nonlinear dynamical systems on practical engineering.
Therefore, it is necessary to develop a load identification method for the nonlinear dynamical system in academic research and engineering practice.
Engineering Structures. 2004, 26: 1143-1153
Journal of Wind Engineering and Industrial Aerodynamics. 2001, 89: 785-807.

Research on The High-Efficiency and Energy-Saving Cutting of The Aero Engine Fan Blades Li Xua, Genghuang Heb, Zhaohui Caic, Dongkai Jiad and Zhenbo Wange School of Mechanical and Power Engineering, Harbin University of Science and Technology Harbin, 150080, PR China aqiangtan@126.com, bsweetspyhgh@126.com, cskycastro@yahoo.cn djdk312@sohu.com, ewzb3328@163.com Keywords: High-speed machining, Fan blade, NC machining, Tool life Abstract.
The turbofan engine technology is in the forward position of aero engine, and has become the main power of fighter and civil aircraft.

Analysis of Mechanical Response for Subgrade of Tramcar with Monolithic Track-bed Chongwei HUANG1,2,a , Shuo WANG* 1,b, Xianzhi SHAO 3, Xianzhao DU4, Erhao SU5 1Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China 2Shanghai Urban Construction Design and Research Institute,Shanghai 200125, China 3China Airport Construction Group Corporation, China 4Wuhan Metro Group Company Limited, China 5Shanghai East China Civil Aviation Airport Construction Supervision Co., Ltd. , China ahcwei@126.com, b18801963177@126.com Keywords: mechanical response; monolithic track-bed; finite element method; subgrade Abstract:Based on the differences between the subgrade of tramcar with monolithic track-bed and the existing subgrade of railway, anew three-dimensional nonlinear finite element model is established in this paper.
The characteristics of mechanical response in the subgrade of tramcar with monolithic track-bed are found by finite analysis, which offers a reference for the future engineering, in terms of the design concept, design basis and theoretical support as well as the basis for decision making. 0 Introductions The track structure of the tramcar uses monolithic track-bed, with the baseplate under that directly acting on subgrade.
Acknowledgement This research was supported by China Postdoctoral Science Foundation General Program (2011M500804), supported by China Postdoctoral Science Foundation Key Program (2012T50428) and supported by Key Laboratory of Road and Traffic Engineering of the Ministry of Education open fund (K201202).
[2] Ministry of Communications: JTG E30-2005 Test Methods of Cement and Concrete for Highway Engineering [S].
Journal of the China Railway Society, 2000, 21(supplementary issue): 79-91 [11]WANG Binglong: High Speed Railway Subgrade Engineering [M].

The Questionnaire Analysis of Chinese Railway Survey and Design Quality Management Hong tao Xie 1, a and Fan Chen 2,b 1School of Architectural Engineering, kunming university of Science and technology，kunming, P.R.China,650500 2School of Civil Engineering, hunan university of Science and technology，xiangtan, P.R.China, 411201 aemail:xhtcsu@126.com, bemail,chenfan3@sina.com Key words：survey and design，quality management，incentive and constraint mechanism，factor analysis Abstract.
In order to deepen understanding of present status of Chinese railway survey and design quality and seek ways to improve management level of survey and design quality, the questionnaire investigation was conducted. 2．Investigation object and methods The investigation object include the consultant engineer, the project owner, the survey and design engineer, the experts intra-industry, the researcher, the government officials and the specialty people of supervision.
[1]Wang Qing'e et al., Discussion on critical issues involved in management of railway construction under new situation, Journal of Railway Science and Engineering.4(2007)，80-83, in Chinese
[2]Xiehongtao,Wangmengjun, An Analysis to Status of Large Engineering Project Management in China Based on Questionnaire Investigation, Proceeding of the 2nd International Conference on Risk Management & Engineering Management.Beijing,China,2008, 339-344 [3]Han Tongyin et al., Review and Prospects for Management Reform of Railway Construction, Journal of Railway Engineering Society. 1(2007)，65-70, in Chinese [4]Lu DongFu, Thought on Strengthening the Management and Group Construction in Railway Construction Enterprises ,Chinese Railways. 5(2004).10-16 ,in Chinese [5]Shi DeLiang, Exploration and Practice on Improving the Railway Construction and Management Level,Chinese Railways. 5(2004).25-27 ,in Chinese [6]Yan Chang Jun, Kemal Ahmet, .BOT Evolution of Project Management Model and Reform of Chinese Construction Industry,Chinese Soft Science.4(2002).53-57,in Chinese [7]Yin YiLin,YanMin,YanLing, Study on governance mechanism of government project,Water Resources and Hydropower Engineering

Environmental protection experience of the Golmud-Lhasa Section, Qinghai-Tibet Railway Construction Shihai Liua, Zhaoyi XUb and Lianjun Wangc School of civil Engineering, Beijing Jiaotong Univ., ShangYuanCun 3, GaoLiangQiao Road, HaiDian District, Beijing City, 100044, Beijing, P.
The natural vegetation locate in engineering permanent and temporary covering area was transplanted to artificial cultivation after projects finished move it back to the original temporary cover, or engineering greening area.
The engineering protection measure and the vegetation combine a comprehensive protection system of the slope, and formed a ‘artificial rebuilding of the natural vegetation’.
J. of Railway Engineering Society.
J. of Railway Engineering Society.

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH ALUMINUM CONTENT MAGNESIUM ALLOYS FABRICATED BY TWIN-ROLL CASTING PROCESS Hisaki WATARI1, a, Yoshimasa NISHIO1,b , Toshio HAGA2,c , Keith DAVEY 3,d , and Nobuhio Koga4,e 1 Graduate School of Engineering, Gunma University, Dpt. of Production Science and Technology, 29-1, Hon-cho, Ota, Gunma, 373-0057, Japan 2 Graduate School of Engineering, Osaka Institute of Technology, Dpt. of Mechanical Engineering, 5-16-1 Omiya Asahi-ku Osaka, 535-8585, Japan 3 The University of Manchester, School of Mechanical, Aerospace and Civil Engineering, PO BOX 88 Sacville Street,Manchester, M60 1QD,UK 4 Nippon Institute of Technology, Dpt. of Mechanical Engineering, 4-1 Gakuen-dai, Miyashiro-machi, Minami-Saitama-gun,Saitama-ken, 345-850, Japan (email: koga@nit.ac.jp) a watari@me.gunma-u.ac.jp, chaga@med.oit.ac.jp, dkeith.davey@manchester.ac.uk, e koga@nit.ac.jp Keywords: Magnesium alloys, Twin-roll casting, Solidification
Alonso Rasgado: Key Engineering Materials, Vols. 274-276, (2004), p.379-p.384
Koga :Journal of Achievements in Materials and Manufacturing Engineering, Vol. 20, Issues 1-2, (2006),p.515-p.518
Yamazaki :Journal of Achievements in Materials and Manufacturing Engineering, Vol 16, Issues 1-2, (2006),p.171-p.176
Koga : Journal of Achievements in Materials and Manufacturing Engineering, Vol 18, Issues 1-2, (2006),p.419-p.422

The building of underground powerhouses can reduce destruction to the ground environment, which not only has important engineering significance, but also of great social benefits.
The Purpose and Significance of Underground Powerhouse Safety Monitoring Underground powerhouses are important part of hydraulic engineering, while they are successively built in some large hydraulic structures as the development of hydropower in China.
The stress state of supporting system is related to engineering safety and stability evaluation, and can directly provide basis for the designing and optimizing supporting parameters, and inspecting supporting effect.
(2)By the description of safety monitoring difficulty of underground powerhouse, monitoring method can be improved in the later engineering practice.
[3] Kuiwei Zhu:Summarization of safety monitoring on underground works of Baishan Pumped Storage Hydropower Station.Water Resources and Hydropower Engineering,Vol.39 No.6(2008),p.59-62

Introduction Stability analysis of slope is a very important part in geotechnical engineering.
Subgrade Engineering, 2007, (1): 1-2[In Chinese]
Chinese Journal of Rock Mechanics and Engineering, 2007, 26(1): 115-122[In Chinese]
Chinese Journal of Geotechnical Engineering, 2002, 24(1): 1-11[In Chinese]
Theory and design of reliability for civil engineering structures [M].

Experimental Study on Compression and Rebound Characteristics of High Liquid Limit Clay of the Yellow River Alluvial Plain Zhengrong Zhao1,a, Hongxia Yang1,b 1Department of Civil Engineering, Shandong Jiaotong University, Jinan, Shandong, 250023, China azhaozhengrong0531@163.com, byanghongxia0531@163.com Keywords: Yellow River alluvial plain, High liquid limit clay, Compression test, Compression modulus, Compression coefficient, Resilience modulus.
(in Chinese) [3] Lijian Wu,Falin Zhong,Changxing Wu,et al.Chinese Journal of Geotechnical Engineering.2003,25(2).pp. 193-195.
(in Chinese) [5] Zhiqiang luo.Central South Highway Engineering.2004,29(1).pp. 87-89.
(in Chinese) [6] Zhanyong Yao.Engineering properties on Yellow River alluvial-plain soil.Tianjin.Tianjin University.2006.
(in Chinese) [8] Test Methods of Soils Highway Engineering(JTG E40-2007).p. 156.

Sudret,Probabilistic models for the extent of damage in degrading reinforced concrete structures,Reliability Engineering & System Safety.2008)410-422
Tesfamariam,Bayesian Belief Network to Assess Carbonation-Induced Corrosion in Reinforced Concrete,Journal of Materials in Civil Engineering.20(2008)707-717
Giorgio,Probabilistic service life assessment and maintenance planning of concrete structures,Journal of Structural Engineering.132(2006)810-825
Xi,Reliability analysis of chloride penetration in saturated concrete,Probabilistic Engineering Mechanics.17(2002)305-315
[10] F.Erdogan, G.C.Sih,On the Crack Extension in Plates Under Plane Loading and Transverse Shear,Journal of Basic Engineering.1963)519-527