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Wind Tunnel Experiment on the Wind Effects of Low-rise Buildings in Rural Areas Pu qing Wang1, a, Yan tao Li1 ,and Yuan ming Dou1, b Jing jing Zhang1 1 School of Civil Engineering, Hebei University of Technology, No. 5340 Xinping Street, Beichen District, Tianjin, 300401, China apuqwang@163.com, bdouyuanming@163.com Keywords: Structural engineering, Low-rise buildings, Wind tunnel experiment, Wind pressure Abstract.

Load-transfer properties of extra-long piles embedded into deep hard-rock and high-pressure grouting piles set into fragmental rock Jian-hua Huang, Jianxun Zhang, Zhong Chen Department of Civil Engineering, Fujian University of Technology, Fuzhou 350108, China E-mail: hjh2001phd@126.com Key words: load-transfer properties; extra-long piles; high-pressure grouting; static loading test Abstract: In the area where hard formation buries deeply, large-diameter and extra-long cast-in-place piles set into soft fragmental rock with high pressure grouting technique may raise the bearing capacity and reduce settlement apparently.
As a result, it also proposed that it’s not necessary to elevate the length of piles worthlessly and set too deep into hard formation unrealistically to avoid wasting in the later similar engineering.
As a result, it also proposed that it’s not necessary to elevate the length of piles worthlessly and set too deep into hard formation unrealistically in the later similar engineering [1, 2].Large-diameter concrete cast-in-place piles can develop so much because their bearing capacity is very high, and they can set into all kinds of strata.
As a result, to avoid wasting in the later similar engineering, it shouldn’t elevate the length of piles worthlessly and set too deep into hard formation unrealistically.

Creep Effects on Simply Supported Prestressed Concrete Box Girder of High-speed Railway with Ballastless Tracks Wang Fang a, Bing Han b and Shaokun Yang c School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China a10121293@bjtu.edu.cn, bbhan@bjtu.edu.cn, c07231263@bjtu.edu.cn Keywords: prestressed concrete box girder, creep, ballastless track.
The results show creep should be controlled in engineering to ensure driving security.
Fig. 2 ZK standard load and ZK special load Fig. 3 Creep development curve of midspan Discuss a Practical Engineering Project to Verify FEM In order to verify the FEM model, the creep of simply supported box girder of Wuhan-Guangzhou high-speed railway is introduced, which is measured by X.C.
A practical engineering project was introduced to compare the actual creep deformation with the theoretical calculation once.

Research on Load Transfer Efficiency of GFRP dowel in Jointed plain Concrete Pavement Li Luoke 1,a ,Li Yunliang 1,b ,Tan Yiqiu 1 ,Xue Zhongjun2 School of Transportation Science and Engineering, Harbin Institute of Technology,Harbin150090, China 2Road Administration of Beijing Municipal Commission of Transport, Beijing 100053, China allk217@126.com, bliyl-hit@163.com Keywords: GFRP dowels, 3-D FE model, Load transfer efficiency Abstract: In a jointed plain concrete pavements, the dowel bar system are used to provide lateral load transfer across transverse joint.
Corrosion of commonly used steel dowel in engineering practice reduces their service life and costs considerable maintenance and repair spending for concrete pavements.
Snyder M B.Component dowel-bar model for load transfer systems in PCC pavements..Journal of Transportation Engineering,ASCE,1995,121(3):289~298 [5] In-Soo Eom,I.D.Parsons,Keith Hjelmstad.Nonlinear Analysis of the Load Transfer Mechanism in Rigid Pavement Systems Considering Various Interface Conditions.Department of Civil Engineering, University of Illinois at Urbana-Champaign.2000,12 [6] Darren Eddie,Ahmed Shalaby,Sami Rizkalla.

L201203 funded by Open Foundation of Key Laboratory of Geoenvironmental Engineering of Liaoning Province.
Engineering Mechanics Vol.5(2007),P.53
Engineering Mechanics Vol.27(2010) , P.85.
Journal of Harbin University of Civil Engineering and Architecture., Vol.1(1985), P. 86 .
Journal of Bridge Engineering , Vol. 6 (2001) , P. 514

Semi Active Control of Chaos in Systems Excited by Non-ideal DC Motor Saeed Farokhi 1,a, Aghil Yosefi Komma2,b and Zohreh Bayat3,c 1MS student, Faculty of Mechanical Engineering, College of Engineering 1University of Tehran Tehran, Iran 2Associated Professor, Faculty of Mechanical, Engineering, College of Engineering 2University of Tehran 3Facaulty of Electrical engineering, Dr.
Hence, non-ideal systems always have one additional degree of freedom as compared with similar ideal systems. [4] In the recent paper it is shown that Impact dampers are a very useful way to suppress chaotic vibration in the system with limited power supply system [5], But this type of dampers are effective to control unwanted vibrations in small-scale systems and they are somewhat difficult, if not impossible, to implement in large-scale engineering structures[6,7].
Constantinon 1999 Engineering Structures 21, 469–487.
Dyke 2000 American Society of Civil Engineers Journal of Engineering Mechanics 126, 795–803.

Hydrogeology and Engineering Geology, 1993, 2:20-22
Chinese Journal of Rock Mechanics and Engineering, 2007, 26(5):1056-1064
Chinese Journal of Underground Space and Engineering, 2005, 1(6):848-852
Chinese Journal of Rock Mechanics and Engineering, 2008, 27(1):144-152
Chinese Journal of Geotechnical Engineering, 2002, 24(4):483-486.

Theoretical and experimental study on structural dynamics analysis based on electrical circuit analogy method Gang Li1,a, Peng Chen1,b and Yuwen Hao2,c 1Earthquake Engineering Institute, Faculty of infrastructure engineering, Dalian Univ. of Tech., Dalian 116023, China 2School of Electronic and Information Engineering, Dalian University of Technology, Dalian 116023, China agli@dlut.edu.cn, biamtobychen@yahoo.com.cn, chaoyuwen@dlut.edu.cn Keywords: Electrical circuit analogy method; Structural dynamic system; RLC circuit; Electrical experiment.
The first application of ECAM in civil engineering is Bazant using it to solve the creep of concrete structures firstly in 1965 [11].
The numerical computation method has become a commonly used method in the engineering sector, and especially it is already mature in solving the problem of flexibility.
J., Electro analogue methods, Applied Mechanics Review (1956-1958); reprints available from Director, Engineering Experiment Station, M.
[12] Roberto Scotta1 and Renato Vitaliani, Structural dynamic and viscoelastic analysis via electric analogy, journal of structural engineering (1996)

Research into the Model of GNSS leveling polynomial surface fitting based on MATLAB Yusheng Gong1,a, Qian Han2,b, Liping Zhang3,c 1School of Resources and Civil Engineering, University of Science and Technology Liaoning, Anshan, 114051,China 2Shenyang Gas Co., Ltd, Liaoning, Shenyang, 110005,China 3Liaoning Nonferrous Reconnaissance Institute, Liaoning, Shenyang, 110013,China agys_long@126.com,b920218996@qq.com ,c233250521@qq.com Key Words: Fitting of the elevation of GNSS, elimination of gross error, Method of polynomial surface fitting, MATLAB Abstract.
In the first place, for least squares estimation do not have the ability of resisting gross error, robust estimation is introduced to data preprocessing, which has solve the problem of distortion model effectively and then combines with specific engineering to make comparison and to analyze accuracy of polynomial surface fitting data of different orders.
Now in the field of engineering application, method of GNSS leveling has been the main one in solving normal height of ground point.
This article first introduce robust estimation to data preprocessing, which eliminate data that contain gross error and solve the problem of distortion model effectively in the accuracy allowed range, then combines with specific project, then combines with specific project to make comparison and analyze accuracy of polynomial surface fitting data of different orders which is widely used in engineering.
^(i-1); end E=Y*A; e1=vpa(E,6); end Engineering Application This project is Level-E GNSS control net of one city in northern China, The area of this control net is 300km2, 134 GNSS control points were settled, and elevation were all practically surveyed by level-4.

China 2School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243002, Anhui, P.R.
The results can provide a reference for the engineering design and related research.
In 1977, the University of California proved the excellent seismic performance of frame structures by test method, the western countries have carried out a more in-depth study on such structure, and have been used in engineering examples.
Engelhardt: Journal of Structural Engineering, Vol. 131 (1984) No.12, pp.1526-1535
Test Earthquake Engineering, (1992) No.1, pp.15-18.