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At present, centrifugal concrete filled thin-wall steel tubular structures used in power engineering well, compared with other structural component , centrifugal concrete filled steel tubular structures in substation frame technical has remarkable economic effect.
(3) Compared with the traditional tower, 500kV centrifugal concrete filled thin-wall steel tubular structures pole is a kind of ideal structure, it not only solves the problem of the cracks on concrete pole, and simplifies the construction difficulty, reduces the project cost, has the very high application value and broad market prospects in transmission line engineering, will be widely used in  ultra-high voltage transmission lines.
Kozo Kogaku Ronbunshu.B.Journal of Structural Engineering.
Civil Engineering Division.2000,80.145-150

Study on Consolidation Test for Fresh Soft Dredger Fill Airong Zheng1, a, Fan Liu 2,b and Ju Chen 1,3 CCCC Tianjin Port Engineering Institute, Ltd., Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, PRC, Key Laboratory of Geotechnical Engineering of Tianjin, Dagu South Road No.1002, Tianjin, China 2 CCCC First Harbor Consultants Co., Ltd., Dagu South Road No.1472, Tianjin, China a zhengair@163.com, b lfan@fdine.net, c tpeicj@126.com Keywords: Dredging and filling, soft clay, consolidation coefficient, size effect Abstract.
Therefore, consolidation by dewatering can greatly improve the physical and mechanical properties of the soft References [1] Changming Wang, Shufang Xiao and Yubin Xia: Journal of Changchun University of Science and Technology, Vol.30 (1) (2000), p. 57 (in Chinese) [2] Cuiying Zhou, Qiang Zeng and Yasheng Li: Acta Scientiarum Naturalium Universitatis Sunyatseni, Vol.44 (5) (2005), p. 25 (in Chinese) [3] Jiangping Zhou and Xiongzhi Peng: Journal of Southwest Jiaotong University (Social Sciences), Vol.40 (1) (2005), p. 77 (in Chinese) [4] Weicheng Li: Large-Scale Shear Box Soil porewater pressure motivating Tests on Shaking Table (Civil Engineering National Department of Taiwan University, Taibei 2002) [5] Jiangping Zhou, Xiongzhi Peng and Shanrui Zhao: Journal of the China Railway Society, Vol.27 (1) (2005), p. 98 (in Chinese) [6] Haijia Wen: Journal of Chongqing Jianzhu University , Vol.22 (9) (2000), p. 9 (in Chinese)

Tangent Stiffness Matrix of Spatial Beam Element Considering Bend and Torsion Coupling Effect Liang Du1, a, Peng Lan2,b NianLi Lu3,c 1 School of Mechatronics Engineering; Harbin Institute of Technology; Harbin, China a Duliang.sme@163.com, b Lan_P @sina.com, c N.lu@hit.edu.cn Keywords: Coupled Bend and Torsion Effect, Tangent Stiffness Matrix, Rotation Displacement Equation, Nonlinear Analysis, Spatial Beam Abstract.
Engineering Mechanics. 2008. 25(5):12-21.
Atsuta.T, Analyses of Inelastic Beam-Columns thesis presented to Department of Civil Engineering, Bethlehem, Lchigh University, 1972 [6].
General Form of the Stiffness Matrix of a Tapered Beam-column [J], International Journal of Mining, Metallurgy & Mechanical Engineering, 2013, 1(2): 149-153.

Research on Longitudinal Reinforcement Ratio of Reinforced Concrete Rectangular Section Single- reinforced Beam Liu Ping 1, 2,a, Gu Zong Ang3,b 1School of Civil Engineering, Hebei University of Technology, Tianjin, 300401, China 2Civil Engineering Technology Research Center of Hebei Province, Tianjin, 300401, China 3 China Petroleum Pipeline Engineering Corporation,LangFang,065000,China, a2002lp@163.com,bmorend@163.com Keywords: Single-Reinforced Beam, Longitudinal Reinforcement Ratio, optimization, Flexural Strength Abstract.
Section width b can be determined according to the requirement of construction, and generally take for.Optimization design variable could be section effective height and , but in the general engineering design ,is the input parameter, and is the output parameter.

Numerical simulation and design optimization of anchor bolt-sash girder support for expansive soil cutting slope Hong Zhang1, a, Guojun Sheng1,b and Wenqing Wu2,c 1 Department of Civil Engineering, Nanchang Institute of Technology, Nanchang 330099, China 2Jiangxi Traffic Consulting Company, Nanchang, 330008, China azhanghlion@163.com, bzhanghlion2010@qq.com, c 993565718@qq.com Keywords: expansive soil cutting slope, flexible supporting structure, design optimization, numerical simulation.
The calculation results of the project can provide useful reference for the similar engineering.
References [1] Chenggang Bao.Behavior of unsaturated soil and stability of expansive soil slope[J].Chinese Journal of Geotechnical Engineering,2004,26(1):1-15.
Analysis on factors affecting expansive soil slope stability based on FLAC2D[J].Subgrade Engineering,2013,(2):111-113.

The Study of Traffic Simulation System Based on B/S Pattern Yuan Kong 1, a, Jianping Wu1, b, Yiman Du1, c 1School of Civil Engineering, Tsinghua University, Beijing 100084, R.R China akongyuangood@qq.com, bjianpingwu@tsinghua.edu.cn, cymducp@gmail.com Keywords: Traffic Simulation System, B/S, WebGIS, System Integration Abstract.
And with the development of computer technology, transportation engineers have paid much attention to apply computerized traffic simulation to optimize traffic operation so as to maximise the capacity of road networks.
Computer Engineering, 33(2007), p. 232-234 (In Chinese) [4] Haifei Zhang and Quan Liu: Development and Application of WebGIS Middleware.
Computer Engineering and Design, 26(2005), p. 1003 (In Chinese)

Khalatov, Theory and practice of swirling flows, AS USSR, Institute of Engineering Thermophysics. - Kiev: Science.
Vatin, Numerical simulation of three-dimensional velocity field in the cyclone, Magazine of Civil Engineering. 5 (23) (2011) 5-9
Chepel, Modeling of swirling turbulent flow in a separator with biconical plates, Journal of engineering physics and thermophysics, 83 (2) (2010) 338-345
Hajek, Swirling flow prediction in model combuster with axial guide vane swirler, Chemical engineering transactions, 29 (2012) 1069-1074

Construction of Ecological Environment Management Platform Based on Supermap Is.net Yu Mingyang1, a, Shi Tongguang1,b, Meng Fei1, c 1School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China.
Guangdong industrial university system engineering.
Beijing university environment engineering.
Guangdong university of software engineering.

Influence of Intermediate Course Gradation Type on Anti-fatigue Performance of the Asphalt Pavement Structure Zhao-hui SUNa Li-guang CHENb Guo-feng YANGc Bao-yang YUd School of Civil Engineering, Shenyang Jianzhu University, China ahappyforevernicety@126.com, bLiguang Chen@126.com, cGuofeng Yang@126.com dBaoyang Yu@126.com Keywords: Asphalt pavement Intermediate course Gradation type Fatigue damage Fatigue life Abstract.
Conclusion Fatigue analysis results of three grading types of asphalt mixture in intermediate course show that: the design grading AC-20 mixture has excellent fatigue resistance in the typical semi-rigid pavement structure, and is recommended for engineering application.
Test Methods of Aggregate for Highωay Engineering JTG E42—2005[S] Beijing: China Communications Press, 2005 [3] Ministry of Communications.
Specifications for Design of Highway Asphalt Pavement JTG D50-2006 [S] Beijing: China Communications Press, 2006 [4]Communications Ministry Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering” JTG E20-2011[S] [5]Zhuangzhuo,You Xiaochuan etc.

Quantitative Study on Model and Basic Concepts of Thermodynamic System WANG Zhiguo1, a , CHEN Jian1, b , YIN Chailing1, c 1,Civil Engineering & Petroleum Engineering College, Northeast Petroleum University, China awangzhiguo99@yahoo.com.cn,binternet02006@126.com,ccwnepu@126.com Keywords: thermodynamic system, quantitative model, opening degree, exchange rate, stability criterion Abstract.
References [1] Zeng Danling, Engineering Non-equilibrium Thermodynamics, Beijing: Since Press, 1991.1-3 [2] Yang Donghua, Irreversible Process Thermodynamics Theory and Engineering Application, Beijing: Since Press, 1988.1-8 [3] Zhao Rusheng, Non-equilibrium Thermodynamics and Dissipative Structure, Beijing: Qinghua University Press, 1986.2-6 [4] Cao Hongxing, the General Theory of System Perimeter—shell Theory, Beijing: Weather Press, 1997.10-25