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The Research on the Nonlinear Stability of the Steel Spatial Arch Truss with 120m Jing Liu1,a , Hai Wang LI1,b , Yue Nan Sun2,c, Xue Feng Shu1,d 1Department of Civil Engineering, Taiyuan University of Technology 79, Yingzexi Street, Taiyuan, 030024, China; 2Hong Kong-Zhuhai-Macao Bridge Authority, Zhuhai, 519015, China; acimeng2005@163.com , blhwtut@126.com, csunyuenan2004@163.com, dshuxf@tyut.edu.cn Keywords: Steel pipe arch trusses, Nonlinear, Stability, Buckling analysis Abstract.
Introduction Steel tube arch trusses are widely applied in practical engineering, and the large span buildings with them are required to be used as earthquake refugee shelters[1].But at present the code for design of steel structures of various countries is still not correspond to calculation terms for arch steel structure stability[2].In this paper, the nonlinear stability on a 120m span arch truss under uniformly distributed load for full cross are carried out with the finite element program ANSYS[3].
China Civil Engineering Journal, Vol.32 (1999) No.6, p.11.

Buckling Analysis of the Copper Pipe Under the Action of Axial Impact Loading Jinlong Wang College of Civil Engineering, Weifang University, Weifang ,China wjl006908@163.com Keywords: Copper pipe ; axial impact; buckling analysis; finite element Abstract.
LS-DYNA program 917 edition with geometric nonlinearity (over traveling,large rotation,large strain), material nonlinearity (more than 140 kinds of material modals) and contact nonlinearity（over 50 kinds）is a complete program, its arithmetic is mainly Lagrange as well as ALE and Euler,its solution is principally explicit both imlicit;its function is mainly structural analysis and nonlinear dynamic analysis with thermal analysis,fluid structural coupling and static analysis(such as prestress calculation before dynamic analysis and rebound calculation of sheet after punch forming),it is a kind of finite element analysis program for military and civil use.
References [1] Y.C.Li,D.Y.Shi,and Y.Zhao, “Basic theory and engineering practice for ANSYS10.0 LS-DYNA,” China WaterPower Press, 2006
[2] X.J.Shang,J.Y.Su,etc, “Dynamic analytical method and engineering example for ANSYS10.0 LS-DYNA,” China WaterPower Press, 2006

Simulation of Stochastic Fields of Corrosion Pit Depth by Cosine Trigonometric Series Model Shanhua Xu1,a, Bin Qiu2,b 1Department of Civil Engineering, Xi'an University Of Architrcture & Technology, Xi'an, China 2Department of Civil Engineering, Xi'an University Of Architrcture & Technology, Xi'an, China axushanhua@163.com bhaoquzhe@yahoo.com.cn Key words：Corrosion Pit Depth,Stationary Stochastic Fields,Cosine Trigonometric Series Model Abstract：In this work, a method to simulate Stochastic Fields of Corrosion Pit Depth of corrosive steel structure by Cosine Trigonometric Series Model is presented.
Introduction From investigating on practical engineering, we found that steel structure under various conditions becomes rust at various degrees.Corrosion on existing steel structure not only reduces the areas,but also decreases yield strength,ultimate strength,yield ratio and elongation percentage etc.

Thermal conductivity of cement concrete using discrete element method Weidong Liu 1, a 1 College of Civil Engineering and Construction Management, Hunan University of Science and Engineering, Yongzhou, 425199, China alwd200526066@163.com Key words: thermal conductivity; cement concrete; discrete element method.
Journal of Materials in Civil Engineering, Vol. 22 (2010), p.186–195

A comparative study on the physical properties of artificial aggregates made from acid clay and dredged soil Seunggu Kang1, a, Yongsung Kim1,b 1Department of Advanced Materials Engineering, Kyonggi University, Suwon, Korea asgkang@kgu.ac.kr, bdydtjd871@hanmail.net Keywords: artificial aggregates, dredged soil, bloating, black core, specific gravity, water absorption Abstract.
Therefore, the specific gravity and the water absorption can be controlled for various applications in civil engineering construction.
Therefore, the specific gravity and the water absorption rate can be controlled with the amount of carbon and sintering temperature, and thus the dredged soil and acid clay aggregates can be used in various applications in civil engineering construction.

Analysis about the Effect on the Design of the Diffusers Huiyu, CHEN1,a, Jing, Gong2,b 1 College of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan, China 2 College of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan, China aChy024027@163.com,bGjing@163.com Keywords: diffuser； sound quality；redistribution；geometric acoustics Abstract.
Audio Engineering, Vol. 24, 5(2006) in Chinese [3] Liu Guang-hua, Ye Heng-jian.Sound diffusion structures of several model test. .

Research of the Uniaxial Compressive Property of the Concrete Mixed with High-Content Fly Ash in Seawater QIN Li-kun1, a, SONG Hong-wei1, YANG Shu-han2 1School of Civil Engineering, Dalian Nationalities University, Dalian 116650,China 2School of Civil Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China aqinlk89@163.com Keywords: Seawater, Fly ash, Concrete, Freeze-thaw cycles, Compressive property.
And the formula of the compressive strength test of fly ash concrete after the fast freeze-thaw cycles in seawater had been developed, in order to convenient for the engineering applications

Analysis of Mechanical Performance Considering Damage Accumulation of Intersecting Joints in Steel Structures Fan baofeng1,a Yang na1,b Yang qingshan1,c Leroy Gardner2,a 1 School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China 2 Department of Civil and Environmental Engineering, Imperial College London, SW7 2AZ, UK afan_baofeng@126.com, bnyang@bjtu.edu.cn, cqshyang@bjtu.edu.cn Keywords: steel structures, intersecting joints, damage accumulation, stress characteristic, finite element analysis Abstract: The mechanical behaviors of intersecting joints considering damage accumulation in steel tube structures is analyzed through the FE-program ABAQUS.
[5] Chu, C.C. and Needleman, A., Void nucleation effects in bi-axially stretched sheet, ASME, Journal of Engineering Material and Technology, 1980, Vol.102, pp249-256.

Haghi 1, a , Mahyar Arabani2,b , Morteza Shakeri3,c 1 University of Guilan, Textile Chemistry Engineering Department, Rasht, Iran 2 University of Guilan, Civil Engineering Department, Rasht, Iran 3 Islamic Azad University-Anzali, Civil Engineering Department, Anzali, Iran a Haghi@Guilan.ac.ir, bm_arabani@yahoo.com, cmortezashakeri@yahoo.com Keywords: Fracture mechanics, Fatigue cracking, Asphalt pavement, Polyester, Tire cord, Stiffness modulus.

School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan ,Hubei , 430072, P.
*Corresponding author: School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan, Hubei, 430073, China E-Mail:whuyzh@163.com REFRENCES： [1] Li Q S, Xiao Y Q, Wong C K.
Cermak, Development of wind tunnels for physical modeling of the atmospheric boundary layer (ABL), in: State of the Art Volume, Ninth International Conference on Wind Engineering, New Delhi, India, 1995, pp.1～5