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Fine damage identification method of transmission tower based on concurrent multi-scale modeling Chun-cheng Liu 1, Shang-yu Hou 1,a*, Wen-qiang Li 1, Zhao-wen He 1 1School of Civil Engineering and Architecture, Northeast Dianli University, Jilin, Jilin,132012,China ahbdxhsy@163.com Keywords: multi-scale; wavelet packet energy curvature difference; damage detection; transmission tower Abstract.
Take a practical engineering 500kV transmission towers as an example to establish a concurrent multi-scale models.
Earthquake Engineering & Structural Dynamics, 2009, 38(8): 1027-1049
Eathquation Engineering and Engineering Vibration, 2006,26(2):66-72
Investigation on the structural damage alarming method based on wavelet packet energy spectrum [J].Engineering Mechanics, 2006, 23(8):42-48

Inflow Performance for Slanted Wells in Anisotropic Reservoirs Considering Wellbore Pressure Drop Haijing Wang 1, a, Shifeng Xue 2,b and Xinghua Tong 3,c 1College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China 2College of Pipeline & Civil Engineering, China University of Petroleum, Qingdao 266555, China 3College of Mechanical, Electrical & Information Engineering, Shandong University at Weihai, Weihai 264209, China alnsywhj@163.com, bxuesf@126.com, ctongxh@163.com Keywords: slanted well; anisotropy; inflow performance; pressure drop Abstract.
Well inclination angle has a greater influence on inflow performance of wells in higher-anisotropy reservoirs than in lower-anisotropy ones and should be determined cautiously in the reservoir engineering design.
Davies: submitted to Journal of Petroleum Science and Engineering (2010) [3] H.
Ramey JR: submitted to Society of Petroleum Engineers Journal (1973) [9] F.M.

Seismic Behaviour of Rocking Elements Reinforced with Composite Materials Simona Coccia1,a, Fabio di Carlo2,b and Stefania Imperatore3,c* 1 Assistant Professor, University of Rome “Tor Vergata”, Department of Civil Engineering and Computer Science Engineering, Via del Politecnico 1, 00133 Roma, Italy 2 Postdoctoral Fellow, University of Rome “Tor Vergata”, Department of Civil Engineering and Computer Science Engineering, Via del Politecnico 1, 00133 Roma, Italy 3 Assistant Professor, Niccolò Cusano University, Department of Engineering, Via don Gnocchi 3, 00166 Rome, Italy acoccia@ing.uniroma2.it, bdi.carlo@ing.uniroma2.it, cstefania.imperatore@unicusano.it Keywords: Masonry vertical walls; rocking behaviour; GFRP retrofitting.
Bulletin of Earthquake Engineering (2016) 1-19
Journal of engineering mechanics 127.5 (2001): 484-493
Journal of engineering mechanics 138.8 (2012): 963-972
Journal of Engineering Mechanics 141.12 (2015): 04015049

Dynamic Stress Intensity Problem of SH-Wave by Double Linear Cracks near A Circular Hole HongLiang Li 1, a ,Hong Li 1,b,Yong Yang1,c 1 School of Civil Engineering, Harbin Engineering University, Harbin, 150001,China a leehl@sina.com, blihong@hrbeu.edu.cn, cyangyong@hrbeu.edu.cn Keywords: composite crack; circular hole; Green's Function; SH-wave scattering; dynamic stress intensity factor(DSIF) Abstract.
In mechanical engineering, circular hole is used widely in structure design.
Introduction In mechanical engineering, circular hole is used widely in structure design.
The problem of scattering of SH wave by a circular hole and linear cracks around the hole is one of the important and interesting questions in mechanical engineering for the latest decades.
Harbin Engineering University, 2004

Influence Analysis of Evolutionary Power Spectrum’s Randomness on Synthesized Acceleration Time History Ju-fang Zhong 1,a, Xiao Hu2,b, Jun-wei Liang1,c 1College of Civil Engineering, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China 2Earthquake Engineering Research Center, China Institute of Water Resources and Hydropower Research, Beijing 100044, China azhjf_814@163.com; bhuxiao@iwhr.com; cl_jw1988@126.com Keywords: Evolutionary power spectrum’s randomness; Synthesized acceleration time history; Characteristic parameters; Influence analysis Abstract.
College of Architecture and Civil Engineering, Beijing University of Teehnology, 2005
Journal of Earthquake Engineering and Engineering Vibration.
Journal of the Engineering Mechanics Division, ASCE.
Proceeding of the 2nd World Conference on Earthquake Engineering[C].

A Method for Damage Detection Based on Correlation Characteristic of Acceleration Response Weiming Yan 1, a, Dapeng Gu 1,b, Yanjiang Chen1,c and Weining Wang1,d 1School of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China, 100124 a yanwm@ bjut.edu.cn, b gudapeng2004@163.com(corresponding author), c cyjrlx@sina.com, dwangvn@163.com Keywords: Damage Detection, Correlation Characteristic, BP Neural Network Abstract.
Vibration based inspection of civil engineering structures, Department of Building Technology and Structure Engineering, Aalborg University, Denmark , 1993. ]: (1) Detection (deciding whether the damage has been caused or not); (2) Localization (locating the damage); (3) Quantification (estimating the extent of the damage); (4) Prediction (predicting the remaining capacity).
Probabilistic Engineering Mechanics. 21(2006) 44-53. ] with enormous advantages on nonlinear simulation, error-tolerance and robustness [[] Das P K.
Probabilistic Engineering Mechanics. 15(2000) 309-315. ].
Reference [[] Wang Baisheng, Ding Haojiang, Ni Yiging, Gao Zanming, Influence of modeling errors on structural damage identification using artificial neural networks, China Civil Engineering Journal. 01(2000) 40-51. ] indicates that a 3-layer BP neural network can depict any mapping relationship; therefore a 3-layer network has been taken into use in the paper for efficiency.

Cost-Benefit Analysis of Formwork Systems Commonly Used In Nigeria Construction Industry Solomon Oluwasegun Abidemi1,a*, Onyebuchi Mogbo1,b, Abdulganiyu Sanusi1,c, Anthony Muoka1,d, Ado Mohammed1,e and Yusuf Muhammad Kudu1,f 1Department of Civil Engineering, Nile University of Nigeria, FCT-Abuja, Nigeria asheggsolo@gmail.com, bmogbo.nwabueze@nileuniversity.edu.ng, csanisuabdulganiyu@nileuniversity.edu.ng, danthony.muoka@nileuniversity.edu.ng, eadomohammed@nileuniversity.edu.ng, fyusuf.kudu@nileuniversity.edu.ng Keywords: formwork, construction, lifecycle costs, steel, timber, sustainability.
It can be seen from the Table that 84.4, 6.5, 6.5, 3.9, and 2.6% of the respondents are Civil Engineers, Quantity Surveyors, Builders, Architects, and others, respectively.
This study suggests that the obtained data is considered reliable and adequate since the highest percentage of 84.4 of responses are from Civil Engineers (the major users of formwork for structural purposes).
Frequency Percent Cumulative Percent Valid Architect 6.0 2.6 2.6 Civil Engineer 195.0 84.4 87.0 Quantity Surveyor 15.0 6.5 93.5 Builder 9.0 3.9 97.4 Others 6.0 2.6 100.0 Total 231.0 100.0 Respondent’s management level.
The estimated initial cost of the traditional timber formwork was 19.76% of the fabricated steel formwork to the engineer’s specification.

Seismic Design, Analysis and Testing of a Friction Steel Braced Frame System for Multi-Storey Buildings in Vancouver Lucia Tirca1,a, Ovidiu Serban1,b, Robert Tremblay2,c*, Yan Jiang2,d, Liang Chen2,e 1Dept. of Civil Engineering, Concordia University, Montreal, QC, Canada 2Dept. of Civil, Geological and Mining Engineering, Polytechnique Montreal, Montreal, QC, Canada alucia.tirca@concordia.ca; bovi.serban@yahoo.com; crobert.tremblay@polymtl.ca; ddy.jiang@gmail.com; eliangchen@gmail.ca *corresponding author Keywords: Friction braced frames, Moment frame, Friction, Stiffness.
UCB/EERC-90/03, Earthquake Engineering Research Center, University of California, Berkeley, CA, 1990
[10] Popov EP, Grigorian E, Yang TS, “Developments in seismic structural analysis and design,” Engineering Structures, 17(3): 187-197, 1995
[12] Filiatrault A, Cherry S, “Seismic design spectra for friction-damped structures,” Journal of Structural Engineering, 116: 1334-1355, 1990
[27] ASCE, ASCE/SEI 7-10, Minimum design loads for buildings and other structures, American Society of civil Engineers (ASCE), Raton, VA, 2010.

Experimental investigations of Shear Lag Effect in a simply supported laminated box beam Yaping Wu 1, 2,a, Zhixiang Zha 1,b，Lixia Wang 2,c, Yinhui Wang 1,d 1 Ningbo Institute of Technology, Zhejiang University, Ningbo 315100 China 2 School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070 China a yapingwu58@126.com, b zhazx71@126.com, c wlx99@126.com, d wangyh7244@nit.zju.edu.cn, Key word: experimental investigations, shear lag effect, laminated box beam, two parabola Abstract.
With the features of high efficiency, low consumption and good mechanical characteristic, thin-walled composite box beams have been broadly adopted in structural engineering, and its mechanical behavior has became an active research area.
Introduction Thin-walled composite box beams have been broadly adopted in structural engineering.
The results get from this paper can provide reference for the design of related engineering structures Experimentaion Sample Preparation.

Static Loading Test and Theoretical Analysis of a Pedestrian Bridge Can Zhang1, a, Ruisheng Ma2, b, Li Tian2, c 1School of Applied Technology, University of Science and Technology Liaoning, Anshan, Liaoning 114051, China 2School of Civil and Hydraulic Engineering, Shandong University, Jinan, Shandong, 250061, China azhangcanln@163.com, bmaruisheng@yeah.net, ctianl-007@163.com Keywords: Static loading test, pedestrian bridge, three-dimensional finite element model, verification coefficient.
According to a practical engineering, a three-dimensional finite element model of the pedestrian bridge is established using software SAP2000.
According to the practical engineering, a three-dimensional finite element model of the pedestrian bridge is established using software SAP2000, and the theoretical analysis of the structure is conducted.
References [1] Frýba L and Pirner M.: Engineering Structures.