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Cement loop damage mechanism in the process of repairing casing Liqiang Tang 1,a , Shuzhang Sun1 , Congcong Wu 1 ,Xuemei Yu 1 1 College of Civil Engineering, Harbin Engineering University, Harbin 150001, China a ccheu@163.com Keywords: cement loop damage; fibrous composite model; the distribution of stress and displacement field; debonded length Abstract: Based on the theories of fracture mechanics and composite materials mechanics, fibrous composite model that interacted on stratum, cement loop and casing was firstly established.
[4] Acknowledgements This research was supported by the Nature Foundation of Heilongjiang Province in China under Grant No.A2004-08 and by the Foundation of Harbin Engineering University under Grant No.
Harbin Engineering University (2003)

Chlorine Ion Penetration Resistance of Concretes Containing Super-fine Limestone Powder Hong-Fang Li1,a, Yi Xia2,b 1Dept. of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang, Henan, 471023, P.R.
China 2School of Materials Science and Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, P R China alihongfang1976@163.com, byi_xia@haut.edu.cn Keywords: Chlorine ion penetration resistance, Limestone powder, Mix proportion Abstract.The influence of limestone powder, air-entraining agent and water binder ratio on chlorine ion (Cl-) penetration resistance of concretes was investigated by rapid Cl- penetration tests.
Rapid chlorine ion penetration tests are done according to JTJ270-98 (Testing Code of Concrete for Port and waterwog Engineering), the experimental apparatus is universal electric bridge (QS 18A).
Bulletin of the Chinese Ceramic Society (In Chinese), Vol. 28 (2009), p. 829 [4] Testing Code of Concrete for Port and waterwog Engineering.

The Hamilton-type variational principle of electro-magneto-thermo- elasticity Haiyan Song 1, a , Zongmin Liu 1, b 1College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, P.R. 
At the same time, the new challenges and many researching projects are put forward to the scholars and engineers.
[5] Moon F C: Magneto-solid mechanics (John Willey & Sons, Inc, New York 1984） [6] Zhou Youhe and Zheng Xiaojing: Structural mechanics of electro-magnetic solid (Science Press, Beijing 1990）(in Chinese) [7] Qin Qinghua and Yang Qingshen: Macromicro theory on Multifield Coupling Behavior of Heterogeneous Materials (China Higher Education Press, Beijing 2006）(in Chinese) [8] CHIEN Weizang: Variational method and Finite Element (Science Press, Beijing 1980）(in Chinese) [9] Liang Lifu: Variational Principles and Applications (Harbin Engineering University Press and the other four Presses, Harbin 2005）(in Chinese) [10] ZHOU Youhe and ZHENG Xiaojing: submitted to Science in China Ser.A(1999)

Experimental Study of the Influence of Impact Mass on Damping Performance of Impact Dampers Yan Zhu 1, a, Shishun Zhu1, b, Wuquan Liu 1,c , Shuntang Hu 1,d 1Automobile Engineering Department, Military Transportation University, Tianjin, 300161, China azylzl@163.com,bzhushishun@yahoo.com.cn, cwqliu@eyou.com, dshuntangh@yahoo.com.cn Keywords: Variable Mass; Impact Damper; Damping Performance; Damping Rate Abstract.
Introduction Vibro-impact damper has been developed and widely used for controlling high-amplitude vibration systems for decades in industry, for example, in chemical process, transportation, civil engineering, regulators etc.
It is very important to study the realistic vibro-impact damping nonlinear theory of engineering practice.
Experimental research on the non-linear oscillation of vibration rod mill, Chinese Journal of mechanical engineering, Vol.33(1997),p.19-25 [6] S.L.Wang, J.G.

Acknowledgements The research reported in the paper is a part of the Project 50878037 supported by National Natural Science Foundation of China, Project LP1015 supported by Open Foundation of State Key Laboratory of Coastal and Offshore Engineering and Project 20100471445 supported by China Postdoctoral Science Foundation.
Journal of structural engineering, Vol.124 (1998). p.241 [2] Wee T.
Journal of Materials in Civil Engineering, Vol.8 (1996). p.70 [3] Khaloo A R, Kim N.
Restoration of Buildings and Monuments, Vol.12 (2006). p. 101 [7] China Association for Engineering Construction Standardization.

Analytical Model for the Hysteretic Behavior of SRC Columns Shan-suo Zheng1,a, Long Li1,b, Wei Wang1,c, Qing-lin Tao1,d and Zhi-qiang Li1,e 1School of Civil Engineering, Xi'an University of Architecture and Technology, Xi’an, Shanxi, China azhengshansuo@263.net, bkgd_qkqp@163.com, cwangwei@163.com dtql6551@163.com, ezhiqiangli2023@163.com Keywords: SRC column; hysteretic behavior; composite section; analytical model; OpenSees Abstract: To simulate the hysteretic behavior and propose the analytical model of steel reinforced concrete (SRC) columns under low cyclic loads, different fiber models which can reflect the mechanical behavior of materials are used in this paper.
(in Chinese) [3] Menegoteo M and Pinto P.E.: International Association for Bridge and Structural Engineering, Vol. 7(1973), p.15-22 [4] Zhi-xiong Guo: The Earthquake Engineering and Engineering Libration: Vol. 29(2009), p.79-85.

Experimental Study on Seismic Behavior of Strengthening Joints in Light Steel Adding Storey Rong GUO 1, a , Shaowei ZHAO  1, b, Kun Liu 2, c  1School of Civil Engineering ,Hebei University of Technology ,Tianjin 300041, China 2Campus Planning Department, Hebei University of Technology ,Tianjin 300041, China atjygr@126.com, b 171534631 @qq.com, ccindylk@sohu.com Keywords: Adding light steel structure storey; Strengthening joint; Pseudo-static test; Seismic performance Abstract: In order to acquire the seismic performance of three different types of nodes between the concrete frame and the light steel adding storey, the pseudo-static tests were carried out to analyse contrastively these specimens’ failure modes, stiffness degradation, hysteretic curves and energy dissipation.
Many scholars devoted to software simulation analysis on studying the adding storey on frame structure [5～7], but it deviated from the real engineering practice because of its lack of reliable experimental data.
Test survey Based on an actual engineering of adding storey with light-weight steel structures on a three-layers of building, three different types of joints were designed and produced, including traditional planted-bar joint (JD-1), the CFRP strengthening one(JD-2) and the encased steel strengthening one(JD-3).
Qingdao Institute of Architecture and Engineering. 1998,3(In chinese)

Introduction Alumina fiber has been often used in aerospace, vehicle engineering, medical equipment, civil engineering and other fields for its good mechanics performance at high temperature, low thermal conductivity, corrosion resistant capability.
Fang:Journal of Yancheng Institute of technology, Vol.16 (2003),p.43-45 [3] Garces Gerado, Bruno Giovanni, Wanner Alexander: Acta Materiallia, Vol.55 (2007), p.5389 [4] Cardinal S, R’Mili M, Merle P:Composites Part A , Vol.29 (1998), p.1433 [5] H.B.Ouyang, H.J.Li:Journal Materials Science, Vol. 43 (2008),p.4618 [6] Corrochano J, Cerecedo C: Materials Letters, Vol.62(2008), p.103 [7] Mizumoto M, Ohgai T, Kagawa A :Materials Science and Engineering A, 2005, p.521-413 [8] H.X.
Peng, Z .Fan, : Materials Science and Engineering, Vol.207(2002), p.335

Using the dynamic reduction method, with the help of SOM neural network, the paper carries on the reduction to the decision system (Table 2), and obtains reduction of , where .According to the actual situation in engineering fields, this article chooses the reduction of the smallest reduction .
China Civil Engineering Journal, 2007, 40(7): 93~98
Engineering Applications of Artificial Intelligence,2003, 16(1): 39~43
Journal of Construction Engineering and Management, 1999, 125(3): 185~189

Sustainability Study on GCHP Heating System in Severe Cold Area of china ZHANG Shu1, a, Zheng Mao Yu2,b 1 School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing, China 2 School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, China adqzhangshu@126.com, bzhengmaoyu@163.com Keywords: GCHP, Seasonal thermal storage, simulation, Sustainability.
Li et al.: Applied Thermal Engineering Vol. 28 (2008), p.1427-1436 [3] H.
Wang: Procedia Engineering Vol. 29 (2012), p. 3783-3787