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Fractals and Catastrophe Analysis of Fatigue Crack Propagation for Sample by Plastic Deformation Yuxin Yao1,a 1 School of Civil and Safety Engineering, Dalian Jiaotong University, Dalian, China aiceberg2@djtu.edu.cn Keywords: the law of crack. fractal dimension. catastrophe. number of stress cycles.
Introduction The Fractal Geometry, established by B.B.Mandebort in 1982, is becoming an effective tool for the description of discontinuity, roughness and granularity in engineering and scientific research [1,2].
Akagi: Fatigue & Fracture of Engineering Materials & Structures Vol. 25(8-9) (2002), p.831-835
Pavier: International Journal of Fatigue Vol. 28(4) (2006), p. 335-345 [8] Shengliang Shi, Zanzhi Wang and Deshen Lin: Chinese Journal of Mechanical Engineering (English Edition) Vol. 11( 4) (1998), p. 264-270
H. et al: Fusion Engineering and Design, Vol. 61-62 (2002), p. 677-682.

Simulation of inspecting stress concentration with thermoelastic stress analysis Zou Lan-lin1,a 1College of Automobile and Traffic Engineering, Wuhan University of Science and Technology, Wuhan, China 430081 aZll999-9@163.com Keywords：Simulation, Thermoelastic stress, Stress concentration, Fatigue cracks.
Introduction Fatigue fracture is a unexpected damage of civil engineering, which is hard to predict and has immense destructive effect.
Evaluating fatigue cracks in steel bridges with thermoelastic stress analysis[P].Thesis the faculty of the school of engineering and applied science university of Virginia.2012,6
Fatigue & Fracture of Engineering Materials & Structures.2004,27:571-583
Thermoelastic stress analysis of fatigue cracks subject to overloads[J].Fatigue & Fracture of Engineering Materials & Structures.2010,3:-809-821

Study on highway investment decision under uncertainty with Shackle model Qian Xu1, a,Litao Geng2, b and Chuanzeng Song3, c 1School of management engineering, Shandong Jianzhu University, Jinan 250101.
China 2Laboratory of road engineering, Shandong Jianzhu University, Jinan 250101.
China 3School of civil engineering, Shandong Jianzhu University, Jinan 250101.
References [1] Youliang Huang: Engineering Economics, Dongnan University Press (2006) [2] Jianjun Wang: China Communications Press (2005) [3] Ford, J.
Sinha: Journal of Transportation Engineering Vol. 135 (2009), p. 129 [9] Li, Z., and Sinha: Transportation Research Record Washington, D.C (1885), p. 79

Different replacement rate of recycled aggregate concrete research Han Jianqiang 1, a, Pei Yahui 1 ，Tian Chunfang 1and Wang Yunan 1 1 Earthquake engineering research center of Hebei Province, Civil engineering of Hebei United University , Tangshang, China 063009 atshjq@139.com Keywords: Recycled Aggregate Concrete (RAC); Recycled Aggregate (RA); Ratio; Strength Abstract: This article mainly research on different replacement rate of recycled concrete at home and abroad are summarized , and expounds the various researchers in the research of recycled concrete.
Therefore based on environmental protection and sustainable development strategy in our country, the application of recycled concrete will become the development trend of the future engineering.
It is understood that the recycle of waste concrete since the end of World War II has become the United States, Japan, Australia and some countries an important research topic, and largely applied in practical engineering.
Fig. 3 Relationship between compressive strength of recycled concrete and recycled concrete replacement rate Recycled concrete research direction in the future Basic properties of recycled concrete at home and abroad research results have showed that by replacing parts of the natural aggregate with recycled aggregates concrete basic configuration can meet the performance requirements for normal concrete; its application in the engineering structure is feasible.

Optimization of second isolation period for parallel base-isolated system Q Rong1, a 1School of civil engineering, Yantai University China 264005 arqmp@sohu.com Keywords: Parameter optimization; Dissipative energy scale factor; Second isolation period; Parallel base isolation Abstract: The optimization of second isolation period for parallel base isolation system is investigated systematically.
For the reasonable selection of design proposal for parallel base isolation, namely, the reasonable selection of isolation parameters, some scholars had made, but the research combined with specific engineering, the research systematic and conclusion universality seemed inadequate.
References [1] MC Constantinou, IG Tadjbakhsh: submitted to Computers and Structures(1983) [2] Izuru Takewaki: submitted to Earthquake Engineering and Structural Dynamics(1997) [3] Robert Sebastianelli, Mark A.
Austin: submitted to Shock and Vibration (2009) [4] JG Park, H Otsuka: submitted to Earthquake Engineering and Structural Dynamics(1999) [5] RS Jangid: submitted to Journal of Sound and Vibration (1996) [6] JA Inaudi, JM Kelly: submitted to Earthquake Engineering and Structural Dynamics(1993)

Research on Korean Nationality’s Rural Landscape Wei Mo1, Xiaoli Wang2 1 Jilin Institute Of Architecture And Cicil Engineering, China 2 Jilin Institute Of Architecture And Cicil Engineering, China a arcmowei@sina.com, b 478497470@qq.com Keywords: Korean nationality; rural landscape; regional culture Abstract.
Acknowledgements This work was financially supported by the Division of Hydraulic and Architecture Engineering, Chinese Academy of Engineering, China Civil Engineering Society and Xi’an University of Architecture and Technology.

Field test study of the blast-resistance performance of optimal composite anchorage structure Lin Zhao1,3a, Xianming Zeng2, Shimin Li2, Dalu Lin2, 1College of Civil Engineering, Hunan University , Changsha 410082, China; 2The Third Engineer Scientific Research Institute of the Headquarters of the General Staff, Luoyang 471023, China; 3 Henan University of Science Technology , Luoyang 471004, China azhaolinhero@163.com Key words: Optimal composite anchorage structure, Single anchorage structure, Blast-resistance, Field test Abstract.
Chinese Journal of Rock Mechanics and Engineering, 2009, 28(8): 1704 [2] Zeng Xianming, Li Shimin, Lin Dalu, Xiao Ling.
Chinese Journal of Rock Mechanics and Engineering, 2009, 26
Protective Engineering, 2008, 30(4)

Study on the impact of cyclic wetting and drying on the shear strength of stabilized expansive soils Yun DONG 1,2,a, Wei-zhong HE1, Baotian Wang2,b 1 Faculty of Architecture and Civil Engineering of Huaiyin Institute of Technology, Huai’an , China. 2 Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Geotechnical Research Institute, Hohai University, Nanjing, China.
Prediction Model of Shear Strength after cyclic wetting and drying In practical engineering, we always need the worst-case shear strength during the slope analysis.
[4] YANG He-ping, ZHANG Rui, ZHENG Jian-long., Chinese Journal of Geotechnical Engineering, Vol.28 No.11, Nov. 2006:1936-1941, (in Chinese)
Engineering Geology, 2001, 60(1-4):223-233.

Application of Numerical Simulation in Reinforcement of Caverns Underground by External Cross-anchoring Wang Jianjun 1,a, Wang Yajun 2,b ,GUO Changying2,c 1 The Seventh-Engineering Corps of China Airport Construction, Shanxi Baoji 721006, China 2Airport department of Air Force Service College, Jiangsu, Xuzhou 221006, China awangjianjun-hm@163.com, bwyj-1972@163.com, cgcy733 @163.com Keywords: anchor; reinforce; cavern; anti-explosion; Abstract: In this paper, the responses of cavern underground reinforced by external cross-anchoring under blast loading were simulated by three-dimensional computational model made in software FLAC3D.
Journal of Geotechnical and Geoenvironmental Engineering, Vol.128 (3) (2002), p.237-249
Proceedings of International UDEC/3DEC Symposium on Numerical Modeling of Discrete Materialism Geotechnical Engineering, Civil Engineering, and Earth Sciences.
Engineering vibration caused by exploding from Shells and bombs [D].Chengdu: Southwest Jiao tong University, Vol.5 (2001), p. 54-60.

Experimental Investigation on Drop in Tensile Performance Index of Carbon Fiber Composite in Use Yaping Wu 1, 2,a, Qi Shi 2,b ，Bingnan Sun 1,c , Yinhui Wang 1,d 1 Ningbo Institute of Technology, Zhejiang University, Ningbo 315100 China 2 School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070 China a yapingwu58@126.com, b shiqi68@163.com, c sbn@zju.edu.cn, d wangyh7244@nit.zju.edu.cn, Key word: Carbon Composite; Tensile Performance ; Drop ; Experimental Investigation; Influential Factors Abstract.
The tensile strength of the carbon fiber composite declines with the width of the sample increasing, which indicates that the reinforce effects of carbon fiber with narrow breadth multitape are better than that with a whole broad breadth tape in the structure strengthen engineering
The effective strength of the carbon fiber composite in use relates to actual engineering techniques, so it is necessary to using autoptic tensile performance index of the carbon fiber composite in the design of the strengthen engineering of the structure.
Chen: Engineering Composite Material (Chemical Industry Publishers, Beijing 2004), in Chinese