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Research on Plate Damage Detection by Two-Dimensional Wavelet Analysis Deqing Guan1, a, Xiaoquan Xiao2, b and Xiaolin Zhong3, c 1,2,3School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha 410076, China acsgdq@126.com, bheizhu52013@yahoo.com.cn , czhongxiaolin-257@163.com Keywords: Simply supported plate, Two-dimensional wavelet analysis, Damage detection, Finite element method Abstract: Wavelet analysis has the characteristics of timing and frequency adapting to each other.
Introduction Simply supported plate is related closely to the civil engineering, so it have great physical meaning to research the detection way of the damage of the plate and it can avoid the occurrence of big safety accident.
Douka: Engineering Structures Vol. 7 (2007), p. 1612–1625 [4] L.H.
Jiang: Composite Structure Vol. 60 (2003), p. 403-412 [5] Bombale, Singha and Kapuria: Structural Engineering and Mechanics Vol. 60 (2008), p. 699-712 [6] Deqing Guan, Zhiyuan Chen: Advances in steel structure Vol. 2 (2009), p.1049-1056 [7] Chihchieh Chang, Lienwen Chen: Applied Acoustics Vol. 8 (2004), p. 819–832 [8] S.
Douka: Engineering Structures Vol. 27 (2005), p. 1327–1338

Comparative assessment of membrane fouling propensity using colloidal silica as foulant Chai Hoon Koo1, 2, a, Abdul Wahab Mohammad1, b, Fatihah Suja’3, c, Meor Zainal Meor Talib1, d 1Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia. 2Department of Civil Engineering, Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Genting Kelang, 53300 Setapak, Kuala Lumpur, Malaysia. 3Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.

The Assessment and Research of Seismic Performance for Large-scale Bridge Based on Fuzzy Mathematics Da-wei Zheng a, Li-xiao Qi b College of Civil Engineering and Architecture ,LiaoNing Technical University, China awxbzl0409@tom.com, bqizewei123456@sina.com Key words: bridge structure,the aseismatic perforanmce of bridge, fuzzy comprehensive evaluation, comprehensive appraisal matrix.
In recent decades,because the global seismic natural disasters occurred frequently, makes the aseismatic performance of bridge engineering research and evaluation become urgent problem to be solved, also become the focus of academic and engineering problems.
Engineering Example: Evaluating the Seismic performance of a large-scale prestressed bridge of Chengdu, survey data shown as table 2 R1= R2= first-level fuzzy comprehensive evaluation: as table 1 shows,V={V1,V2,V3,V4,V5}={95,85,70,55,40},first-level fuzzy evaluation results ,by the form of quantity,were Characterized as follows: first-level fuzzy comprehensive evaluation results shown as table 3 ,the factors of design and measure were just general level second-level fuzzy comprehensive evaluation: first-level fuzzy comprehensive judgment matrix R== Table 2 The Seismic Performance Indexes of a Large-scale Prestressed Bridge in Chengdu First-level Second-level Factor We-ight Sub-factor Wei-ght Membership degree Safe Less safe Gen-eral Less dan-ger Dan-ger Bridge anti-earthqua- ke design 0.5 ①the selection of bridge site and bridge type in earthquake
The application of Fuzzy mathematics in civil and hydraulic engineering [M].Beijing:China Communication Press,2004
[3] Bart kosko .Fuzzy Engineering .Prentice-Hall 1999 [4]DoT,TheOAssessmentofHighwayBridgesandStruetures,DepartmentStandardDZI/93,DepartmentofTransport,London,1993

Bidirectional Moving Force Identification on an Orthotropic Rectangular Plate Wei Zhang1, a, Ling Yu 1, 2, b 1Department of Mechanics and Civil Engineering, Jinan University, Guangzhou 510632, China, 2 Key Laboratory of Disaster Forecast and Control in Engineering, Ministry of Education of China, Jinan University, Guangzhou 510632, China azhangcz88@163.com, blyu1997@126.com Keywords: Moving Force identification, Orthotropic Plate, Time Domain Method.
Introduction Identification of moving loads on bridges is an important problem in the civil and structural engineering field.
J. of Structural Engineering, 1988, 112(8): 1703-1723
Engineering Structures, 2004, (26): 1142-1153
Busby: Practical inverse analysis in engineering.

An improvement of general design methods for lock castle structures Zhouhong Cao1, 2, a, Jijian Lian1, b, Xizhu Liu3, c 1School of Civil Engineering, Tianjin University, Tianjin, 300072, China 2School of Hydraulic Engineering, Changsha University of Science and Technology, Hunan, Changsha, 410114, China 3Hydraulic engineering office, Shandong Survey and Design institute of water conservancy, Shandong, Jinan, 250014, China achangshaczh@163.com, btju_luntan@126.com, clxz0635@163.com Keywords: hydraulic structure, elastic foundation beam, Finite Element Method (FEM), floor deadweight, lock.
Zhang: China Civil Engineering Journal, Vol. 25. (1992), p. 45 (in Chinese) [2] Z.X.
He: Journal of Port and Waterway Engineering, Vol. 11. (1981), p. 7 (in Chinese) [4] X.P.
Liu: Journal of Port and Waterway Engineering, Vol. 5. (2006), p. 70 (in Chinese)

The Introduction of Micro-pile in Building Heightening and Transformation Sujuan Zhang Civil Engineering School, Shandong Jiao Tong University, Jinan, Shandong, 250023, China Zhangsujuan2007@sina.com Keywords:Micro-pile Construction Connection with superstructure Bearing capacity Abstract.Micro-pile is mainly introduced in this paper the construction technology and its main connections with superstructure in building heightening and transformation.
Furthermore, micro-pile can not only be placed in vertical way, but also in mutual cross shape, such as tree roots, so it is called root pile, or reticulated roots pile, which Japanese call RRP engineering method.
In a variety of civil engineering[1], such as house renovation, overbuilding story (He Dawei, 1997), strengthening and rectification of ancient buildings, levees reinforcement (Tareket et, al, 2001), reinforcement of construction (build) against shock, new building foundation, treatment of dilapidated buildings foundation, uneven settlement, processing of underground cavern collapse, slides treatment, embankment reinforcement, pit supporting, foundation excavation and retaining, micro-pile is widely used.
Whether dry hole forming or holing with circulating slurry wall protection is adopted all depends on engineering geological conditions.
Design Method of Pile-Cap-Soil Interaction [J].Geotechnical Engineer, 1990, 2(1): 11-17 [4] Yasufuku Noriyuki,Ochiai Hidetoshi,Ohno Shiro.

Discussion of High Arch Dam by Performance-based Deformation Yan Tao1,a, Heming Cheng 1,b, Xingguo Hu 1,c, Zhijun Li 2,d 1Faculty of Civil and Architectural Engineering, Kunming University of Science and Technology, Kunming 650224, Yunnan, China 2Fourth Construction co., LTD of Yunnan Architectural Engineering Group, Yunnan, China atylshj@163.com, b chenghm650093@yahoo.com.cn, c kghxg@yahoo.com.cn, d1204088334@qq.com Key words: Performance-based design, reliability method, strain rate, hold time of load Abstract: Dam security is the key of concrete high dam.
To specific structure, this target shall be formulated by owners and engineers.
The dam seismic damage level B1 is no damage or minor damage,the dam is in linear elastic range.B2 is slight damage and moderate damage which crack happens partly.B3 is seriouse damage.B1 and B2 can meet the engineering need using linear elastic analysis.B3 was calculated byelastic-plastic-damage model.The dam is destroyed first started from local destruction. after partial damage, dam stress redistribution, destroying the range expanded further, depends on whether the concrete to the state of stress-strain.
Reference civil engineering based on reliability research, discussion is tried to get reliability calculation based on displacement analysis.
Engineering and Structural Dynamics, 2003, 32: 2 221－2 240

Study on the Influence of Inertia Effect in Dynamic Splitting Test of Concrete Zhenfu Chen, Pan Liu School of Civil Engineering, University South China, Hengyan 421001, China zhenfuchen7754217@163.com Keywords: Concrete, impact load, inertia effect.
Introduction Concrete is a widely used engineering material that is used extensively in buildings.
The experiment was completed on a drop hammer tester in the Structural Laboratory of the School of Civil Engineering, University of south china.
International Journal of Impact Engineering. 2007. 34(3): 405-411 [7] HAO Y, HAO H, LI Z X.
International Journal of Impact Engineering, 2011, 39(1): 51-62

Experimental Investigation on Composite Seismic Isolation System XinZhi Dang1,a, HaoLin Yang1,b,WanCheng Yuan1,c, DeQin Song1,d 1 State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, China aleodangxz@163.com, b3252403@163.com, cyuan@tongji.edu.cn, dsongdeqin1988@163.com Keywords: composite seismic isolation system; cable-sliding friction aseismic bearing; multi-chip steel spiral spring; load-deformation curve.
SLDRCE09-B-08, Kwang-Hua Fund for College of Civil Engineering, Tongji University, and by the National Natural Science Foundation of China under Grants No. 50978194, 90915011 and 51278376.
References [1] Westermo, B, Udwadia, F, Periodic response of a sliding oscillator system to harmonic excitation, Earthquake Engineering and Structural Dynamics, Vol. 11(1983) 135-146
[2] Lee, George C, Ou, Y, Niu, T, Song, J, and Liang, Z, Characterization of a Roller Seismic Isolation Bearing with Supplemental Energy Dissipation for Highway Bridges, Journal of Structural Engineering, v 136, n 5, p 502-510, 2010
Seismic performance of cable-sliding friction bearing system for isolated bridges, Earthquake Engineering and Engineering Vibration, v 11, n 2, p 173-183, 2012.

Lorin3, Zhenlin Wu2,*, Chris Cheeseman4 & Luc Vandeperre3 1 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, 116000, China 2School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian, 116000, China 3 Department of Materials & Centre for Advanced Ceramics, Imperial College London, South Kensington Campus, London SW7 2AZ, UK 4 Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK * Corresponding author: zhenlinwu@dlut.edu.cn Keywords: Magnesium silicate hydrate; shrinkage; dilatometry Abstract.
Acknowledgements This work was funded by the UK Engineering and Physical Sciences Research Council (EPSRC) through grant number EP/F055412/1, NSFC through grant number 51408096, Project No.
Nuclear Engineering and Design, 2001. 203: p. 27-38
Canadian Journal of Civil Engineering, 2004. 31: p. 767-775