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Reinforced concrete （RC） structures are the mostly widely used forms of structure in civil engineering nowadays.
The ANSYS software can be used in computing loading behaviours of RC structures as well as simulating process analysis, which will realize the nonlinear FEM analysis of RC structures and lead to satisfactory results for engineering projects.
About the author：Zhou Mingrong, male, born in 1978, Domicile Of Origin——Taizhou , Zhejiang Province, China.His technical title is lecture and engineer.Graduated as Master of Engineering, now he works in Architecure Department, Zhejiang Industry Polytechnic College.
His research interest includes engineering construction and structure engineering study.
Cement and Concrete Composites, 2002,24:229~241 [3] Hao Wenhua.ANSYS Applying Examples in Civil Engineering[M] ((book in Chinese).Beijing：China Water & Power Press.2005 [4] Han Baoyuan.

Study on Character of Triaxial Extension Strength of Compacted Clay Junxin Liu 1,2,a Zhongfu Chen1 and Weifang Xu1 1Institute of Systems of Engineering, China Academy of Engineering Physics , Mianyang,Sichuan,China,621900 2School of Civil Engineering and architecture Southwest University of Science and Technology, Mianyang,Sichuan, China,621010 aemail:ljx0614@126.com Key words: first invariant of stress tensor; the third invariant of stress deviator; triaxial extension; strength ratio between triaxial extension and compression Abstract: For soils, failure occurs with lower deviatoric stress under the same pressure (the first invariant of stress tensor) in TXE compared with the strength of the triaxial compression, which is indicated that the strength of soils strongly depends on the third invariant of stress deviator; Although in the traditional Mohr-Coulomb criterion it can be reflected in difference of strength between triaxial extension and compression under the same pressure
References [1] Mingyang Wang, Xiaoli Rong and Qihu Qian,etal:Chinese Journal of Rock Mechanics and Engineering, Vol.22 No.11(2003),Page:1811~1816.
(in Chinese) [3] Hongkui Zhou: Chinese Journal of geotechnical engineering, Vol.6 No.3(1984),Page:11~23
:Journal of the Engineering Mechanics Division, American Society of Civil Engineers, Vol.117 No.2(1991),Page: 348-369
[6] Shangyi Zhao,Yingren Zheng and Mingwei Liu,etal:Chinese Journal of Rock Mechanics and Engineering, Vol.25(s1)( 2003),Page:2730~2734.

Influence of high mode effects on ductility reduction factors for MDOF shear-type structures Huiying Wang School of Civil Engineering and Transportation and State Key Laboratory of Subtropical Architecture Science, South China University of Technology, Guangzhou 510641, China why4220@126.com Keywords: ductility reduction factors, multi-degree-of-freedom systems, high mode, shear-type structure, nonlinear dynamic analysis Abstract.
References [1] ZhaiChanghai, XieLili: Earthquake Engineering and Engineering Vibration, Vol. 26 (2006), No. 2, p. 1
[2] Riddell R, Newmark N M: Structural Research Series, Department of Civil Engineering, Urbana-Champaign, University of Illinois, (1979), No. 468 [3] Nassar A A, Krawinkler H.: The John A Blume Earthquake Engineering Center, Stanford University, (1991), No. 95, p. 12 [4] Miranda E: Journal of Structural Engineering, Vol. 119 (1993), No. 12, p. 3503 [5] ZhaiChanghai, XieLili: Engineering Mechanics, Vol. 23 (2006), No. 11, p. 33 [6] Miranda E: In proceedings of EERC-CUREe Symposium in Horner of Vitelmo V.
Bertero, (1997), p. 45 [7] Santa-Ana P R, Miranda E: 12WCEE in Auckland, Newland, (2000), No.1446 [8] Moghaddam H, Mohammadi R K: Journal of Earthquake Engineering, Vol. 5 (2001), No. 3, p. 425 [9] Zhou Jing, CaiJian, Fang Xiaodan: Vol. 20 (2007), No. 3, p. 309 [10] GB50011-2010 Code for seismic design of buildings.

Influence of the Initial Imperfection on the buckling of Steel Member Wrapped by Carbon Fibre Peng Niu 1, a*,Gang Yang 2,b, Chunfu Jin 3,c , Xinxiang Li 1,d 1Institute of architectural engineering , Shenyang University ,Shenyang, China 2Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian, China 3School of Hydraulic and Civil Engineering, Dalian University of Technology, Dalian, China a*Np777@126.com , byanggang@dlmu.edu.cn, cKim777@126.com , dbinaoqao@163.com Key words: steel structure; carbon fibrer; initial geometric imperfection; Ježek method Abstract.
Engineering Mechanics Vol.5(2007),P.53
Engineering Mechanics Vol.27(2010) , P.85.
Journal of Harbin University of Civil Engineering and Architecture.(1985), Vol.1, P. 86 .
Journal of Bridge Engineering , Vol. 6 (2001) , P. 514

Modal analysis is widely apllied in the damage diagnosis of mechanical engineering, communication engineering and structural engineering [1~4].
Engineering Mechanics. 2007. 24(4): 66~70
Engineering Mechanics, 2004, 21(1): 21~25
Engineering Mechanics, 2010, 27(8): 54~59
Journal of Civil Architectural & Environmental Engineering, 2001, 14(3): 259~262

Application of Multi-Monitoring Information for Bridge Safety Evaluation Yen-Jen Lee 1,a, Jet-Chau Wen 2,b, Chern-Hwa Chen *3,c, and Yuh-Yi Lin 4,d 1 Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Yunlin, Taiwan 2 Department and Graduate School of Safety Health and Environment Engineering, Research Center for Soil & Water Resources and Natural Disaster Prevention, National Yunlin University of Science and Technology, Yunlin, Taiwan 3 Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung, Taiwan (*Corresponding author) 4 Department of Civil Engineering, Tamkang University, Taipei, Taiwan a ylhg30112@mail.yunlin.gov.tw, b wenjc@yuntech.edu.tw, c chchen@nuk.edu.tw, dyyl@mail.tku.edu.tw Keywords: Cable-stayed bridge, Structural monitoring, Monitoring system, Safety evaluation Abstract.
The design of cable-stayed bridge became fashionable thanks to the advancing of engineering technology [1].
These are the examples showing the improvement of bridge engineering in Taiwan and the footsteps to catch up with the rest of the world.
However, with the fast development of cable-stayed bridges, there are still several concerns, such as the safety maintenance strategies after they are commissioned for wind[2], earthquake[2] and traffic[3], whether there is a system for damage assessment, and whether bridge engineers are up for the upcoming challenge that we may neglect some problems that will result in failure of these engineering marvels under the pressure of not wanting to be left behind in this international engineering ranking of cable-stayed bridge.
Chen: Structural Engineering, Vol. 10, No. 2, (1995a), p. 45

Calculation and Analysis on out-Plane Force of Hollow-Shearwall in Large Space Residence Lang Cao 1, a, Wei Weng 2,b 1 College of Civil Engineering and Transport, Hohai University, NanJing, China 2 Wuxi Civil Architectural Design Institute Company, Limited, WuXi, China acaolang2004@163.com, bwengwei1008@163.com Keywords: Large Space Residence; Reinforced Concrete; Hollow-Shearwall; Out-of-Plane Force; Analytic Solution Abstract.
Under various operating conditions, it is easy to apply this program for the out-of-plane force analysis, which can provide reference for the further research on the out-of-plane capacity and a reliable basis for engineering design.
According to the boundary conditions, in the sides y=0 and b,the deflection and moment are zero, so we can assume the deflection W in equation(2) to be: (3) Substituting formula (3) for the W in the bending control equation (2), it is obtained as: (4) Function Xm(x) relates not only to the signs of Nx,but also to the parameter λm: (5) The forms of solution to the equation (4) vary with different Nx and λm and they can be divided to the following cases: Most shearwalls in practical engineering are always acted by end moment and vertical pressure with λm<1.
This method can be used to get the deflection and bending moment at any point of the hollow-shear wall under the condition of different side length, hole diameter, the space between the edge of the holes, as well as Poisson's ratio.It provides reliable basis for further research and the engineering design of the out-of-plane problem of hollow -shearwall.

Calculation Method for Bridge Temporary Structure Based on Graphic Flow Technology Ling Huang1,a, Yanliang Shang2,b, Hao Zhang3,c 1, 2,3Institue of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei, PR.
The solving process will involve relevant professional theoretical methods, materials of design graphics and tables, structure features, engineering relationship, engineering experience, the solving scheme provided by experts and other engineering features, in which, there are a large number of engineering information and geometric information with engineering relationship.
The function graphic object is abstracted from global or local engineering drawings, or from some intention and symbols known well by the engineering personnel, including some engineering relationship, specification information, features of the engineering drawings, relevant expert knowledge and so on, easy to identify and understand.
References [1] Fa´tima Farinha, Eliane Portel, Cristina Domingues, Luı´s Sousa.Knowledge-based systems in civil engineering: Three case studies[J].
Soft computing in engineering design – A review[J].

The Research of BIM Theory Applied in Decision Making of Commercial Building Green Retrofit Guo Li1, a,*, Bu Shanshan2,b, Zhu zhigang3,c, Su yanfei4,d and Liang Xin5,e 1School of Economics and Management Engineering, University of Civil Engineering and Architecture Beijing China 2 Department of Building and Real Estate, The Hong Kong Polytechnic University Hong Kong China 3 Department of BIM, JCM Institute of International Engineering Management Beijing China 4 School of Economics and Management Engineering, University of Civil Engineering and Architecture Beijing China a,* guoli@bucea.edu.cn, bshanshan.bu@connect.polyu.hk, c zhuzhigang2010@163.com, d suyanfei152@163.com, e xin.c.liang@connect.polyu.hk Keywords: Decision of Green Retrofit; Commercial Building; BIM Technology Abstract.
These measures should be the prerequisite to meet the need for construction environment and the user's requirements, to make sure the green retrofit solution is comprehensive and coordinative. 2.2 The stakeholders and its decision making of green retrofit For the activity of commercial buildings green retrofit, its stakeholders including: owners , energy consultants, engineers, contractors, banks, quality inspector and so on, in the workflow of green retrofit, a reasonable process modeling should be established.
Owner Architect User group Specialty Engineer Contractor Fig 1.
The maximum value of the application of the BIM technology is that it can utilize the life cycle of building, besides, it can link all kinds of data ,process and resources in different stages of a building’ s life cycle, so BIM technology can fully describe a project and it can be used by every stakeholder who involves in the construction project. 3.2 The characteristic of BIM (1)Completeness of information In addition to the engineering objects description of the 3D geometry information and topology relations, BIM also includes the complete engineering information description, such as the design information （it includes object name, structure types, building materials, engineering properties）,construction information(it includes construction process, schedule, cost, quality and human, machine, material resources),maintenance information(it includes project safety performance, durable material performance), and the engineering logic of relations between objects

Introduction The handling of uncertainties is a research area of great importance and interest within civil engineering and material engineering.
This is usually the cases in material engineering.
In civil engineering especially in geotechnical engineering, however, most of the time the material properties at meso scale show significant spatial variability.
Griffiths Risk Assessment in Geotechnical Engineering, Wiley 2008
Journal of Engineering Mechanics-Asce 2009.135(4): 276-284