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Hilbert-Huang Spectral Analysis of Natural Wind Speed Fuyou Xu 1,a ,Airong Chen 2,b, Wenjuan Lou 3,c and Zhe Zhang 1,d 1Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China 2Department of Bridge Engineering; Tongji University; Shanghai 200092, China 3College of Civil Engineering and Architecture, Zhejiang University; Hangzhou 310027, China afuyouxu@hotmail.com, ba.chen@mail.tongji.edu.cn, clouwj@zju.edu.cn, dzhangzhe@dlut.edu.cn Keywords: Sutong Bridge; natural wind speed; HHT; intrinsic mode function; amplitude spectrum.
Introduction In the field of wind engineering research, natural wind speed time-histories may be regarded as stationary stochastic process in many cases.
Journal of Vibration Engineering, Vol.15(2) 2002，p. 233 [4] Shi chunxiang, Luo Qifeng., Earthquake Science, Vol.25(4) 2003,p.398 [5] Zuojin Zhu, Hongxing Yang.

Shaking Table Test of Underground Pipeline Under Three Dimension Seismic Excitation—Numerical Simulation Xiao Fua*, Junwei Bib , Zhijia Wangc, Changwei Yangd School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China a646777870@qq.com, b1186054378@qq.com, c344963551@qq.com, d857556877@qq.com Keywords: seismic response, viscoelastic boundary condition, contact analysis, model test.
Dimitris Pitilakis, Matt Dietz, David Muir Wood: Soil Dynamics and Earthquake Engineering.Vol.28 (2008), p.453 [5].
Xi Zuo, Guoxing Chen, Xiuli Du: Journal of Disaster Prevention and Mitigation Engineering.
Jingbo Liu, Yixin Du, Zhenyu Wang: Earthquake Engineering and Engineering Vibration, Vol.5 (2006), p.93

Example of Application The post-evaluation of electric power construction projectis comprehensive and objective analysis and evaluation onplanning objectives, specific implementation process, social and economic benefits, functioning and affecting.The post-evaluation focus onsix aspects:project decisions, preliminary engineering, construction, production and operation, economic benefits and impacts.The full process management of project evaluation cansummarize the experience and problems, to strengthen and improve the project management recommendations for project decisions, and provide the basis for investment risk control.The post-evaluationcontainsimplementation and managementevaluation, technical evaluation, financial evaluation, social impactsevaluation, as well as the conclusions and sustainableevaluation of realization degree of the overall objectives.
References [1] C.J.Wang, J.C.Li, Evaluation model based on fuzzy comprehensive evaluation method of the post-evaluation of real estate projects, Information Management, Innovation Management and Industrial Engineering (ICIII), International Conference on (Volume:1), pp.154-157(2012)
[2] X.F.Ma, S.Y.Lu, Y.Zhou, The post-evaluation index system for preparatory work of transmission and transformation projects, Power Engineering and Automation Conference (PEAM), 2011 IEEE (Volume:1), pp.363-366 (2011)
Xu,Transformer substation construction project postevaluation base on improved Gray Fuzzy theory, Electric Technology and Civil Engineering (ICETCE), International Conference on, pp.1829-1832 (2011)
[5] K.H.Wu, Z.Q.Xu, C.Duan, Research and Implementation of Evaluation System Model for Grid Investment Based on Improved Fuzzy-AHP Method, Distributed Computing and Applications to Business, Engineering and Science (DCABES), Tenth International Symposium on, pp.350-353 (2011).

Construction technique of caisson foundation for coastal structure engineering[J].
Port & Waterway Engineering,2012,(4):191-195
[4] MU Baogang,WANG Yan,ZHU Jianmin.Analysis of large caisson sinking measured resistance[J].Journal of Civil,Architectural & Environmental Engineering,2012,33(S1):107-115
[5] HE Qiaoling,WANG Jinguo,XU Yushen.Study of monitoring of the earth pressure of south anchorage foundation of Taizhou Changjiang River Highway Bridge[J].Science Technology and Engineering,2013,13(12):3514-3519
[6] CHEN Yumin,XU Dingping.The FLAC/FLAC3D Foundation and Engineering Examples(Second Edition)[M].Beijing:China WaterPower Press,2013:217-229.

Optimum Design of Si-Cr Alloy Springs for Seismic Vibration Isolator Dyi-Cheng Chen1,a*, Shih-Hung Kao2, Li-Ren Chen1, Sheng Jung Wang1, Chih-Yuan Chen1 and Chen-Kun Huang1 1 Department of Industrial Education and Technology, National Changhua University of Education, Changhua 500, Taiwan 2 Department of Mechatronics Engineering, National Changhua University of Education, Changhua 500, Taiwan aemail: dcchen@cc.ncue.edu.tw Keywords: Vibration isolation device, Si-Cr alloy spring, Magnetorheological dampers Abstract.
Ohsaki, Shape optimization of compliant mechanisms for seismic isolator model, Journal of Structural and Construction Engineering (Transactions of AIJ) 75 (647) (2010) 113-119
Kawanishi, Study on seismic isolation foundations with ability to convert response direction based on sliding isolator sysytem, Journal of Japan Society of Civil Engineers, Ser.
A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 66 (1) (2010) 105-114

Study on the Damage Law of SRC Frame-RC Core Wall Hybrid Structure Storey Affected by Component Damage Shan-suo Zheng1,a, Long-fei Sun1,b, Qing-lin Tao 1,c and Yi Hu1,d 1School of Civil Engineering, Xi'an University of Architecture and Technology, Xi’an, Shanxi, China azhengshansuo@263.net, bsunlongfei0218@126.com, ctql6551@163.com, dhuyi6570@163.com Keywords: ABAQUS program, SRC frame-RC core wall hybrid structure, simulation analysis, damage relations Abstract.
Design calculation model Engineering situation.
Journal of Structural Engineering, 2002, 128(1): 87-95
Journal of Structural Engineering, ASCE, 1985, 111(4): 740-757
Earthquake Engineering and Structural Dynamics, 1988, Vol.16: 719-734.

Comparative Study on Deflection Calculation for Concrete Flexural Members with Fiber Reinforced Polymer Reinforcement Jiangyong Cai1, a, Xibo Zhou2,b, Xiong Jia3,c and Yantao He1,d 1 School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, China. 2 Wuhan Architectural Design Institute, Wuhan, China. 3 Central and Southern China Municipal Engineering & Research Institute, Wuhan, China ajycai05@163.com, b xibo8102@163.com, cjx820526@163.com, dheyant_438@163.com Keywords: reinforcement; deflection; concrete; FRP reinforcement; GFRP reinforcement; beam.
Introduction Engineering design of concrete structures with fiber reinforced polymer (FRP) reinforcement requires careful consideration of serviceability conditions related to deflection control owing to low modulus elasticity of FRP bars[1].
Peter: Journal of Structural Engineering (2005)
Al-Salloum and T.H.Almusallam: Composites Part B: Engineering (2000).

Dynamic Buffeting Response Analysis of High pier and long Span Continuous Rigid frame Bridge With Stochastic Wind Field Tianzhi Hao 1, a, Xiaoli Xie 1,b,Tianjia Hao 2,c 1Guangxi Academy of communications, GuangXi Nanning,China,530007 2School of Architecture and Engineering; Guangxi University; Guangxi Nanning China,530001 3Twenty-one Bureau of China Railway Group engineering company, ShaanxiXi'an,China,710054 ahtz0537@163.com, bxxl2002gxu@sina.com,chaotianjia@163.com Key words: stochastic wind field; continuous rigid frame bridge; buffeting response Abstract: The fluctuating wind field is simulated for digital by using the stationary Gauss processes, which Kaimal spectrum and Panofsky spectrum is used to the simulation of wind target spectrum with different direction and speed.
Numerical simulation of fluctuating wind field Fluctuating wind field simulation is foundation of bridge wind induced vibration calculation, long-term since, according to the statistical characteristics of wind speed records, in civil structure relates to near normal climate conditions of wind can be considered to be ergodic, zero mean, smooth, Gauss random process.
(7) (8) Examples of engineering application A high pier continuous rigid frame bridge span layout is 126m+240m+126m,the height two of pier high is 130m , double limb variable cross-section rectangular hollow pier, pier net distance is 5.5m.The frame box girder is single cell box section, width of box girder roof plate is 13m,, height root of The frame box girder high is 14m, 4.8m cross span ,beam high change according to the1.8parabolic tapered, construction of the largest cantilever length is 119.0m.
Engineering examples prove that the use of stationary gauss processes to the fluctuating wind field for digital simulation is feasible, Kaimal spectrum and Panofsky spectrum simulation of different wind direction wind speed target spectrum, according to Davenport quasi-steady buffeting force model formula, the time-history of wind velocity is converted to Buffeting force time history, applied to the corresponding node, combined with finite element software dynamic buffeting response simulation analysis is correct.
[4] Z Q Chen, the bridge wind engineering, Second Edition, Beijing: people communication press,2005(In Chinese)

Modeling of the CFT Column under Cyclic Load based on OpenSEES Lei LI1, a, Shansuo ZHENG2, b 1, 2 School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China alilei1004@163.com, bzhengshansuo@263.net Keywords: Concrete filled steel tube (CFT); Column; flexibility-based; fiber.
Introduction Concrete filled steel tubes (CFT) column is one of the most used engineering structures.
The number of integral points affecting the sensitivity of the model is a topic of concern related to the academics and engineers.
Li: Engineering Mechanics, Vol.26(2009), No. 1, p. 148(In Chinese) [2] A.
Wang: Engineering mechanics, Vol.27 (2010), No.8, p.125(In Chinese) [4] L.

Calculation on Fracture Parameter of Model I Crack Tip Based on ANSYS Ke Songa, Bangcheng Yangb Dept of Engineering Mechanics, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China asongkesk@sina.com, byangbc5@163.com Keywords: interaction integral method, VCCT, fracture parameter, crack, ANSYS.
Introduction Fracture accidents in vehicle engineering, mechanical engineering and manufacturing industry are very common in our daily life.
This theory has been widely used in Engineering.