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Study on Proposed Value of Catanchor Coefficient for Large Prestressed Pier Zhenke Huang1, a, Shaojun Fu1, b, Huanfeng Qiu1,c, Shenghong Chen 2,d 1School of Civil Engineering, Wuhan University, Wuhan 430072, PR China 2State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, PR China ahuangzhenke@whu.edu.cn, bsgjg@whu.edu.cn cqiuhuanfeng83@163.com, dchensh@whu.edu.cn Keywords: Prestressed Pier, Catanchor Coefficient, Comparative Analysis, Value Proposed, FEM Abstract.
The design water head is 160m, the pier applied with large and concentrated loads requires the prestressed structures when the reinforced concrete cannot meet the engineering requirements of crack.
Table1 Mechanics Indexes Related to Prestressed Piers Project Name Catanchor Coefficient Cable Tonnage (kN) Trunnion Load (kN) Concrete Tensile Strength (MPa) TSL (Neck) TSL (Internal Anchor) Total Single Xiaowan 2.163 128000 4000 59168 3.28 0.51 0..67 Guangzhao 1.929 108000 3000 56000 3.12 0.60 0.44 Wanmipo 1.670 66000 3300 39400 2.60 .0.85 0.80 Table2 Engineering Indexes Related to Prestressed Piers Project Name Dam Type Gate Size Supporting Structure Dam Height Xiaowan Concrete hyperbolic arch dam 6m×6.5m Deep beam 292.0m Guangzhao Roller compacted concrete gravity dam 16m×20m Anchor block 200.5m Wanmipo Roller compacted concrete gravity dam 16m×20m Anchor block 64.5m Conclusions are drawn according to data of table1 and table2 as follows:1)the catanchor coefficient is large relatively;2)TSL increases when the catanchor coefficient decreases;3) it is basically the same TSL in the pier neck and in internal anchor end;4) when the cables reach a certain tonnage, the TSL of internal
Table3 Engineering Data Related to Typical Demostic Projects Project Name Trunnion Load (kN) Cable Tonnage(kN) Supporting Structure Catanchor Coefficient Total Single Lubuge 28000 69000 2300 Anchor block 2.464 Shuikou 43200 94500 3150 Anchor block 2.189 Gezhouba(dajiang) 40000 90000 3450 Anchor block 2.250 Longyangxia(bottom) 73500 128000 3620 Deep beam 1.741 Longyangxia(middle) 45300 108000 4186 Deep beam 2.384 Xiaolangdi 50000 126900 4290 Deep beam 2.538 Gezhouba(sanjiang) 28000 60000 3000 Deep beam 2.143 Conclusions Based on the finite element analysis of some typical pre-stressed piers and the contrast with other similar projects, the following conclusions appear to be warranted: (1) The catanchor coefficient is higher relatively on average in China, the pre-stressed pier should be designed by partial prestressed state; (2) The pier neck and internal anchor end should be the control parts and the single-gate load is the design load case; (3) The catanchor coefficient can reflect
References [1]Power Industry Standard of The PRC.Design Specification for Hydraulic Concrete Structures(DL/T.5057-2009)[S].Beijing: China Electric Power Press,2010 (In Chinese) [2]F.F.Xia: Master Thesis for Hohai University,2007(In Chinese) [3]Chen Shenghong.Computational Rock Mechanics and Engineering [M].Beijing: China Water and Hydropower Press, 2006(In Chinese) [4]Hui Rongyan,Huang guoxing,Yi bingruo.Concrete Creep[M].Beijing:China Railway Press,1988(In Chinese) [5]Zhu Bofang.Principle and Application of Finite Element Method [M].Beijing: China Water and Hydropower Press, 1998(In Chinese) [6] N.B.Su,S.J.Fu, S.H.Chen:Water Resources and Power,2005,23(3):74-76(In Chinese) [7]C.Zhao,J.Zhang,G.X.Yang,R.Zhang,A.R.Pei:Journal of Hohai University (Natural Sciences),2008,36(5):624-627 (In Chinese) [8]J.J.Pan,Y.J.Xu,S.Fei: China Rural Water and Hydropower, 2007, (9):92-99(In Chinese) [9]G.Y.Li,Y.G.Xiang,S.Tang: Yangtze River,2009,40(23):25-27(In Chinese) [10]Andrew Eberhardt, Jan A.Veltrop

Seismic response of underground structure under vertical seismic excitation Cheng-zhi QI＊, Xu Liu, Guohua Li, Deng Pan, Jian Luo Beijing Research Center for Engineering Structures and New Materials, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; E-mail: qichengzhi65@163.com; Key words: vertical seismic excitation, roof slab, soil-structure interaction, dynamic response Abstract: Seismic response of shallowly buried underground under vertical seismic excitation is studied.
Introduction One issue in earthquake engineering that was dismissed at an early stage was the vertical component of earthquake ground motion.
Only in the past 2 decades has the established view on vertical earthquake motion been reinvestigated from an engineering seismology as well as an earthquake engineering stand points.
The disaster analysis of the subway stations in great Hanshin earthquake, Earthquake Resistant Engineering, 2(1996), 40-43

Study on Performance-based Seismic Evaluation and Strengthening for RC Damaged Structures Qiumei Gao1, a, Bao Wang2, b 1 College of Civil Engineering and Architecture, SUST, Qingdao China 2 Qingdao Quality Supervision Station of Communications, Qingdao China aforevergq@sohu.com, bdb3530@eyou.com.
Performance-based seismic design [1] is based on the analysis of structural seismic purpose, the purpose of performance-based earthquake engineering is to ensure that the engineered facilities whose performance under common and extreme earthquake ground motions responding to the diverse needs and objectives of the owners, users and society.
Performance objectives are acceptable performance of structures when the structure is subjected to stated levels of seismic hazards, which is the largest expected damaged extent when exceeding probability earthquakes take place .The determination of performance objective is to ensure that the engineered facilities whose performance under common and extreme earthquake ground motions respond to the diverse needs and objectives of the owners, users and society.
References [1]Ahmed Ghobarah,Performance-based design in earthquake engineering: state of development[J].Engineering Structures 23(2001)878-884

Medina2, Frédéric Miranville1 1Physics and Mathematical Engineering Laboratory for Energy and Environment, University of Reunion, France 2Civil, Environmental and Architectural Engineering Department, The University of Kansas, USA aaurelien.jean@univ-reunion.fr Keywords: Natural materials; Thermal conductivity; Thermal characterization; Mulch; Lava-Rock; Construction.
This was part of an ongoing project by the student chapter of Engineers Without Borders (EWB) to design sanitation technologies, namely solar composting latrines for use in developing nations.
In many developing nations, this type of rock is used as crushed rock in construction and highway engineering.
Acknowledgement The authors thank the Civil, Environmental and Architectural Engineering Department of the University of Kansas, the Haute Normandie region (France) and its “Region without border” financial program support, and the help of Mr.
Jr., and Capobianchi, M., (1999), Mechanical Engineering Handbook, Boca Raton: CRC Press LLC, chapter Heat and Mass Transfer, pp. 4–1 to 4–287

Trends and Development of Precast Concrete Closed Spandrel Arch Bridge Systems Chong Yong Ong1, a, Kok Keong Choong1,a, Geem Eng Tan2, b, Tai Boon Ong2,b 1School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, MALAYSIA 2Rivo Precast Sdn Bhd, Lot 5127, Batu 6, Jalan Kenangan Off Jalan Meru, 41050 Klang, Selangor Darul Ehsan, MALAYSIA acekkc@eng.usm.my, brivoprecast@gmail.com Keywords: arch bridges, precast concrete closed spandrel arch bridge system, rectangular arch section, corrugated arch section, Super-Light Deck, BEBO Arch, CON/SPAN Arch, Matiere Arch, TechSpan arch, NUCON Arch, Concrete-Filled FRP Tube Bridge, Flexi-Arch, Rivo CS-P Series arch, Pearl Chain Bridge.
Overfilled Precast Concrete Arch Bridge Structures. 16th Congress of International Association for Bridge and Structural Engineering (IABSE), Lucerne 2000: 380-387 [2] William R.
The Builders: Marvels of Engineering.
[6] Product Brochure: Hume Bebo Arch 2002 [7] Product Brochure: Matiere Arch by ACPi Persys Engineering [8] Product Brochure: Techspan Precast Concrete Arch System, The Reinforced Earth Company [9] The Freyssinet Group Magazine (2006), “History: TECHSPAN: arches for the modern world”, Soils & Structure, No. 224 Second Half of 2006, pp 34-35
[15] Product Brochure: Crossings.Culverts.Bridges.Contech 2015, Contech Engineered Solutions

Vibrothermographical Simulation of Cracked Structures Chin-Yuan Hung1,a, Yunn-Lin Hwang2,b, Wei-Hsin Gau1,c and Kun-Nan Chen3,d* 1Department of Mechatronic Engineering, Huafan University, New Taipei City, Taiwan 2Department of Mechanical Design Engineering, National Formosa University, Yunlin County, Taiwan 3Department of Mechanical Engineering, Tungnan University, New Taipei City, Taiwan achinyuan@ltivs.ilc.edu.tw, bhwang@nfu.edu.tw, cgau@cc.hfu.edu.tw, d*knchen@mail.tnu.edu.tw Keywords: Vibrothermography, Cracked structure, Friction, Transient thermal simulation.
Mayton: Reliability Engineering and System Safety Vol. 131 (2014), p. 229
Smyth: International Journal for Numerical Methods in Engineering Vol. 82 (2010), p. 303
Santini-Bell: Computer-Aided Civil and Infrastructure Engineering Vol. 28 (2013), p. 509

Seismic damage analysis of Factory Buildings in 2008 Wenchuan Earthquake Wei Wang1, a, Haitao Guan 2, b 1 School of Civil Engineering, Xi’an Univ. of Architecture and Technology, China 2 Architectural Design & Research Institute of Tongji University, Shanghai 200092, China.
Journal of Earthquake engineering and engineering vibration, 2011, 31(1):130-141(In Chinese)
Journal of Earthquake Engineering and Engineering Vibration, 2010,31(1):60-68(In Chinese)
Seismic Design & Lessons Learnt from Frame Structures in 5.12 Wenchuan Earthquake[J].World Earthquake Engineering，2009，25（4）：133-137(In Chinese)

There are respectable studies on the behavior of saturated clay, but these researches mainly focused on seismic engineering.
Proceedings of the School of Engineering, Tokai University.
Chinese Journal and Rock Mechanics and Engineering, Vol. 26(2007), p.182–189
Chinese Journal of Mechanics and Engineering, Vol. 22(2003), p.1566–1570
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Identification of Natural Frequency of Bearing Rotor Based on GA-SVM Tianran Ma1a,Feihu Qin1b,Ruixue Liu1c,Fengjie Zhang2d 1School of Mechanics and Civil Engineering China University of Mining and Technology,Xuzhou, China 2State Key Laboratory for Geomechanics and Deep Underground Engineering China University of Mining and Technology,Xuzhou, China amatian_ran@126.com,bqinlang1989@163.com,cruixue1964@163.com,dmatianran@gmail.com Keywords: bearing rotor; natural frequency; identification; genetic support vector machine (GA–SVM); Abstract.During identify natural frequency of bearing rotor, due to the complex non-linear relationship among the factors which influence natural frequency, so it is hard to establish a complete and accurate theoretical model.
The natural frequency of the dynamics of engineering structures is the function of structural geometry and material characteristic parameters, which is a complex non-linear relationship with a number of factors.
[2] Tang Kelun,Gao Shuying and Liang Zhangquan: The improving of the finite element method for the calculation of Rotor system natural frequency(Chinese), Journal of Sichuan Institute of Light Chemical Engineering.
[6] WANG chun-lin, ZHOU hao, LI guo-neng, QIU kun-zang, CEN kefa,“the Ash Fusion Point Forecast based on GA-SVM,” Journal of China Electrical Engineering, 2007, vol.27, pp.11-15
[15] ZHANG hao, LUO yi-yong, ZHNG li-ting, CHENG zhu-an, “the Change of Cultivated Land Forecast based on GA-SM, ” Journal of Agricultural Engineering, 2009, vol.25, pp.226-231

Seismic Design and Analysis of Tall Shear Wall-Frame Structure using Viscous Damping Wall Qiang Zhang1,a, Wenguang Liu1,b, Wenfu He1,c and Yang Liu1,d 1 Civil Engineering Department, Shanghai University, 149 Yanchang Road, Shanghai200072, China azqiang@shu.edu.cn, bliuweng8@yahoo.com.cn, chowunfu@yahoo.com.cn, dwinner5299@163.com Keywords: energy dissipation, viscous damping wall, shear wall-frame structure, time-history analysis Abstract.
Engineering situation Tall shear wall-frame residential structure is adopted in this project.
Hu: Earthquake engineering (The second edition).
Zhou: Seismic control for engineering structures.
Earthquake engineering and engineering vibration, 2004, 24(5):92-96.