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Experimental method of axial compressive existing concrete columns strengthened with externally bonded FRP Hongzhen Kang1,2,a, Weihua Ma1, b, Xiqiang Wang1,c and Yinghua Ye2,d 1Deportment of Civil Engineering, Tangshan College, Tangshan 063000, China 2Department of Civil Engineering, Beihang University, Beijing 100191, China athkhz@sina.com, bmwh99@163.com, ctslihuizhi@126.com, dyhye@263.net Keywords: FRP (Fiber Reinforced Plastic), Experimental Method, Existing, Axial Compression, Concrete Column Abstract.
LIU: Journal of Civil Eng.

Influence of turbine blade cooling efficiency on turbofan engine performance Liya Zhu1 and Qin Huang2 1School of Energy and Power Engineering, 2School of Transportation Science and Engineering,Beihang University, Beijing 100191, China zhuliyajulia11@126.com Keywords: turbofan engine; performance emulation; turbine blade cooling efficiency; specific fuel consumption; specific thrust Abstract.
Introduction To improve economy efficiency of civil turbofan engine, the main method is to reduce the specific fuel consumption (sfc).
The parameters of some typical modern civil turbofan engines were also shown in figure 2.
Fig.8 Best sfc vs. cooling efficiency It must be clarified that the main purpose of civil engine is low sfc instead of high specific thrust.

Research on construction control of irregular steel-arch cable-stayed combination bridges Zeng Xianglin 1,a, Zhao Yongfei 1,b, Yuan Yuan 1,c, Gao Yufeng 1,d 1School of Civil Engineering，Southwest Jiaotong University，Chengdu 610031，China a981960808@qq.com, b306281957@qq.com, c1009068131@qq.com, d415154249@qq.com Keywords: cable-stayed bridge ;steel arch ;construction control ;line-shape ;stress Abstract：In order to evaluate the construction quality of a bridge, the finished line-shape and the actual stress state are two key parameters to check whether it’s consistent with the design requirements.
Fig. 1 Plan of North Central Bridge（Unit: m） Fig. 2 Elevation of North Central Bridge Finite element simulation analysis Finite element analysis software MIDAS Civil 2012 is employed to simulate and to calculate the whole bridge structure and its components. 2.1 Model of the whole bridge According to the geometric parameters, structural parameters and initial state of the North Central Bridge, the construction control model in MIDAS CIVIL2012 is created.
According to finite element analysis of MIDAS Civil 2012 and the modern monitoring techniques, as well as taking the possible load effects into consideration, the assembling pre-camber and the theoretical coordinate of each segment of the arch ribs in the field assemblage could be obtained.
Sichuan Jiaotong University Engineering Testing Consulting Co., Ltd.．，2013．

Numerical Analysis of Temperature Field of Vertical Frozen Soil Wall Reinforcement at Shield Shaft Jun Hu *1, a, Xiaobin Wang 2,b and Birong Jiang 1,c 1 College of Civil Engineering and Architecture, Hainan University, Haikou, Hainan, 570228, China 2 Changshu Institute of Technology, Changshu, Jiangsu, 215500, China a183633299@qq.com, b369993308@qq.com, c625506645@qq.com Keywords: Shield Launching, Vertical frozen soil wall, Temperature field, Numerical simulation Abstract.
The numerical results provide theoretical data for future engineering designs that are simliar to the present study.
Engineering Background The total length of Nanjing subway route-10 is 41.4 km, with 20 stations.
Study on Numerical Simulation of Cup-shaped Horizontal Freezing Reinforcement Project near Shield Launching[C].2011 International Conference on Electric Technology and Civil Engineering (ICETCE).
A Numerical Simulation Study on the Chemical Reinforcement Area at Shield Start Shaft[C].2011 International Conference on Electric Technology and Civil Engineering (ICETCE).

The Effects of Synthesis Conditions on PUF Microcapsule Morphology Ning-Ning Hu1,a , Hao-Han Huang1,b , Hong-Zhi Cui1,c 1Department of Civil Engineering, College of Civil Engineering, Shenzhen University, P.

The Design of the Sewage Device in Seepage Monitoring Instrument for Dam Foundation Huan Denga, Zhenghua Zhangb*, Jie Lic, Mi Yuand and Fiyu Wange School of Civil and Architecture Engineering, China Three Gorges University a1342290281@qq.com, bzenithzhang@sina.com, c604515903@qq.com, d137081080@qq.com, e757275359@qq.com Keywords: dam foundation seepage monitor sewage device Abstract.
Acknowledgement The financial supports from the ‘Qiusuo’ innovation plan for undergraduate students (2012-2013) and College of Civil and Architecture Engineering are greatly acknowledged.

Application of relation analysis in evaluation and optimization of pile-foundation Tao Dai, Xing Liu 1,2School of Civil Engineering and Architecture, Wuhan university, Wuhan 430072, China 1daitao2013whu@163.com 2xliu_whu@163.com Keywords:pile-foundation selection; relation analysis; preference criteria; Abstract: a list of criteria subject to selection and decision of pile-foundation is produced.
Pile-foundation has been widely used in civil engineering, no matter in high-rise building or bridge.

Reliability Analysis of cold standby Compound system Jiang-jun XU， Zhi-jian XIAO Civil Aviation Flight University of China，Aviation engineering institute，Guanghan Sichuan china 618307） Civil Aviation Flight University of China, Simulator training center，Guanghan Sichuan china 629000) 836384727@163.com，699330@163.com Keywords：Laplace Transform; Cold Standby System ; Reliability Degree Abstract: for researching standby Compound system，the authors propose a new Laplace transform method which are used for deducing mathematical expression of system reliable lifetime .
Table 1 Reliable life and mean time to failure system reliability lifetime（9 reliability 5%） mean time to failure| 1st subsystem 0.067 2nd subsystem 0.253 3nd subsystem 0.344 Conclusion: This paper discusses the reliability assessment of system with a cold standby unit ,and Margin is less than or equal to 4. the above analysis, we can get the following conclusions: (1)Analyze reliability assessment problems of cold standby Redundant systems by make using of Laplace transform method，reducing the level of complexity Compared with the traditional method,，it is Conducive to the practical application of engineering personnel (2) when Margin is less than or equal to 4，With the increase of Margin ，reliable life of system and the average working time before failure have been significantly improved

Calculation of the Tension of Coastal Shore-to-ship Transmission Cableway Zhendong Tan1,a, Zunfeng Du2,b, Jian Zhang1, Chao He1, Weiguo Wu1 1Military Transportation Institute of the General Logistics Department, Tianjin 300161, China 2School of Civil Engineering, Tianjin University, Tianjin 300072, China a tanzhendong_tj@126.com, b duzunfeng2001@126.com Keywords: Shore-to-ship cableway, Tension, Catenary algorithm, Finite element analysis.
Taking a small civil transport ship for example, the height between the hanging point on the ship and the water surface can be calculated as follows: (7) whereis the height of the hanging point from the ship deck, which is about 4.5m; is ship’s moulded depth, which is 4.3m; is ship’s draft, which is 2.37m.
References [1] Jian-xing Yu, Hong-tao Li: Ocean Technology, vol. 24 (2005), p. 59-62 (In Chinese) [2] D Bruno, A Leonardi: Simulation Practice and Theory, vol. 7 (1999), p. 207-218 [3] Carlo Mapelli, Silvia Barella: Engineering Failure Analysis, vol. 16 (2009), p. 1666-1673 [4] Stefan Margreth: Cold Regions Science and Technology, vol. 47 (2007), p. 4-15 [5] Zi-li Chen, Jia-shi Tang, Mei-ya Deng: Noise and Vibration Control, vol. 5 (2006), p. 41-44 (In Chinese)

Department of Civil Engg., Yeshwantrao Chavan College of Engineering, Nagpur, India 2.
Department of Civil Engg., Yeshwantrao Chavan College of Engineering, Nagpur, India a. . ajayldandge@gmail.com, b meshramvg@gmail.com Keywords: Phosphogypsum (PG), admixture, cement, concrete Abstract: Modern concrete is now common to use admixture (chemical or mineral), pozzolana’s for modifying different properties of concrete in fresh and hardened state.