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Experimental research on the stiffness of gravel cushion with the influence of Geogrid Lisheng Huang1,a ,Jie He 2,b 1College of Civil Engineering, Hunan University of Technology, China 2College of Civil Engineering, Hunan University of Technology, China a360509926@qq.com, b82017333@qq.com Key words: Geogrid,Cushion, Stiffness, Model test Abstract: To study the influence law of Geogrid’s effects on the stiffness of grave cushion, cushions of nine different kinds are designed and are carried out static load test of model respectively.
Table 2 Physical and mechanical parameters of gravel Natural gravity w/(kN·m-3) Relative density d Void ratio e Shear strengthτ/ MPa Internal friction angle φ /(°) 20.6 2.66 0.50 0.23 38 The geogrid used in the experiment is two-way polypropylene geogrid produced by Hua Dong Geotechnical Engineering Materials Co.Ltd (Yixing city, Jiang Su province) and its size is 1.0 * 1.0 m.
Chinese Journal of Geotechnical Engineering, 2003, 25(6): 710-714(in Chinese)
Chinese Journal of Rock Mechanics and Engineering,2003, 25(6): 710-714(in Chinese)
Chinese Journal of Rock Mechanics and Engineering, 2005,24(3): 490-495(in Chinese).

Performance Analysis of Concrete Silo Structure Strengthened with Carbon Fiber Reinforced Polymer Laminate Yonggang Ding1,a, Jianqiang Wang2,b, Xizhu Wang3,c and Wentao Feng1,d 1School of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou, Henan, 450052, China 2School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China 3Henan Xuhui Architectural Design Institute, Zhengzhou, Henan, 450008, China adyg9606@126.com, bwjq1975@163.com, cwxzwqs@126.com, dfengwentao128@163.com Keywords: Reinforced Concrete Silo, Carbon Fiber Reinforced Polymer (CFRP) Laminate, Strengthening, Finite Element Method (FEM).
It has many advantages such as high tensile strength, high elastic modulus, light weight, high corrosion resistance and convenient construction, etc., and is widely used in the field of engineering structure reinforcement [3].
The bottom and the wall of the silo are integral in actual engineering.
According to the stress distribution, cracks may occurs in the 1/3 lower height, which is well fit to the practical engineering.
Wang, Structure Optimization Design Based on Finite Element Method - Principle and Engineering Application, Beijing: Tsinghua University Press, 2010, in Chinese.

Dynamic Analysis of The Base Isolator Structure Liu Yinglia, Li Chunmiao b and Yan Teliangc College of Civil and Architectural Engineering, He Bei Polytechnic University, Tang Shan 063009, China a lylseff@126.com, bmiaomiaosos@163.com, cteliangyan@126.com Keywords: Base-isolation Structure, Dynamic time-history Analysis, Earthquake-response.
Engineering application This project is earthquake engineering research center for He Bei province and located in He Bei Polytechnic University of Tang Shan city.
The construction units is He Bei Polytechnic University and the design units is College of Civil and Architectural Engineering of He Bei Polytechnic University.
The earthquake engineering and engineering vibration.2004,24(6):34~39

China civil engineering journal, 41(2008) ,p.1-8 [5]Y.Shimada,Y.Matsuoka,S.Yamada,K.Suita.
Dynamic collapse test on 3-D steel frame model.The 14th World Conference on Earthquake Engineering, Beijing,(2008) [6]A.Tsitos,G.Mosqueda,A.Filiatrault,A.M.Reinhorn.
The 14th World Conference on Earthquake Engineering, Beijing,(2008) [7]Yi Weijian, Collapse performance of RC frame structure.
China civil engineering journal. 34(2001), p.8-10 [9]Zhou yan, Zhang lei-ming.
Chinese Journal of Rock Mechanics and Engineering. 24(2005), p.3036~3044 [10]Gu Xianglin,Yin Xiaojin.Simulation of collapse process and design method to resist collapse for building structures.

Experimental Study on Mechanical Properties of Polyethylene HDPE in Conditions of Hydraulic Impact Simulation Szymon IMIEŁOWSKI 1,a, Apoloniusz KODURA 2,b , Aniela GLINICKA 3,c* and Cezary AJDUKIEWICZ 4,d 1, 2 Faculty of Environmental Engineering, Nowowiejska 20, 00-653 Warszawa, Poland 3, 4 Faculty of Civil Engineering, Armii Ludowej 16, 00-637 Warszawa, Poland a szymon.imielowski@is.pw.edu.pl, b apoloniusz.kodura@is.pw.edu.pl c A.Glinicka@il.pw.edu.pl, d C.Ajdukiewicz@il.pw.edu.pl Keywords: HDPE modulus of elasticity, hydraulic impact, water hammer, experimental determination of Young’s modulus, cyclic load.
Up to now the phenomenon is not explained in details and actually is a challenge for scientists and engineers so at present a large number of different models and equations are used to calculate the extreme values of pressure, wave frequency and others parameters of transient flow.
In the Laboratory of Fluid Mechanics of Faculty of Environmental Engineering, Warsaw University of Technology, experiments on water hammer phenomenon that occurs in pipelines made of different materials like steel, polyethylene, PCV were done.
Experiment was carried out in the Laboratory of Strength of Materials of Faculty of Civil Engineering, Warsaw University of Technology.
Ramos, B.A. de Almeida, Parametric Analysis of Water Hammer Effects in Small Hydro Schemes, Journal of Hydraulic Engineering, vol. 128, No 7 (2002) 689-696

Compressive Behaviour of Laminated Neoprene Bridge Bearing Pads under Thermal Aging Condition Yannian Zhang1,2,a, Xie Jun1,b 1Hebei Key Laboratory for Diagnosis, Reconstruction and Anti-disaster of Civil Engineering, Zhangjiakou,075000, China 2School of Civil Engineering, Shenyang Jianzhu University, Shenyang, 110168, China aCorresponding author:zyntiger@163.com, bxiejun79@126.com Keywords: Bridge bearing pads; thermal aging; compression tests; compressive capacity Abstract.
Photograph of compression testing setup The compression tests were carried out in the Structural Engineering Laboratory of Shenyang Jianzhu University.
Study of rheological behavior and miscibility of epoxidized natural rubber modified neoprene.Journal of Materials Engineering and Performance, (2006)15(1): 81-87 [4] Xie Suizhi, Liu Dengfeng, Zhou Mingluan.
Journal of Structural Engineering . (2009)135(11):1440-1449
Journal of Structural Engineering. (2009)135(11):1450-1461 [8] DU Yong-feng, Kou Jia-liang, Kou Wei-wei.

Research of Stratigraphic Classification Based on Difficult Degree of Construction Yuanqing Duan 1,a , Yongquan Li 2, b 1Henan Provincial Non-ferrous Metals Geological and Mineral Resources Bureau No.3 Geological Team, Zhengzhou, 450016, China 2College of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou, 450001, China a12600116@qq.com, bliyongquan7197213@126.com Key words: stratigraphic classification; soil formation; Protodyakonov's coefficient; geological age; Abstract.
Especially construction and renovation about infrastructure and civil engineering are ubiquitous.
Strength is a necessary engineering parameter for design that frequently is not assessed, but plays a role in engineering design and construction, such as tunnel support requirements, bit wear for drilling or tunnel boring machine (TBM) operations, allowable bearing pressures, excavation methods, and support.
References [1] American Society for Testing and Materials, ASTM D-2487, “Standard Classification of Soils for Engineering Purposes,” ASTM Annual Book of Standards, Volume 04.08 on Soil and Rock, Section 4 - Construction, West Conshohocken, PA,1996
[3] Hatheway, A.W., “Trench, Shaft, and Tunnel Map-ping,” Bulletin of the Association of Engineering Geologists, v.

J.1, c 1Federal University of Rio Grande do Norte, Lagoa Nova, Civil Engineering Department, 59015000, Natal, RN, Brazil 2University of Texas-Austin, Civil Engineering Department-GEO, 301 E.
Introduction Geosynthetic-reinforced soil (GRS) walls have been used successfully in Geotechnical Engineering in the past few years as a result of their technical and economical advantages.
Thesis, School of Engineering at Sao Carlos, University of Sao Paulo, Sao Carlos, Sao Paulo, Brazil, 330p.
Journal of Geotechnical and Geoenvironmental Engineering, v. 129, n.1, 32-45
Journal of Geotechnical and Geoenvironmental Engineering, v. 124, n. 8, 670-683

Analysis on Wind-induced Vibration of Tall Buildings in Hilly Terrain Yi Sun1, a, *Nuan Deng1,b and Zhengliang Li2,c 1 School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing, China 2 School of Civil Engineering, Chongqing University, Chongqing,China asunyi_cqust@163.com, bdengnuan@163.com, clizhengl@hotmail.com Keywords: Hilly terrain, Tall buildings, Wind-induce vibration, Wind tunnel test, Wind speed.
Introduction As the development of metropolis in hilly terrain, wind-induced vibration of tall buildings in hilly terrain is becoming notable by structural engineering.
Journal of Wind Engineering and Industrial Aerodynamics, 86(2-3) (2000):169-186
Journal of applied foundation and engineering science, 21(3) (2013): 569-580.
Journal of Engineering Mechanics, 111(2) (1985):254-276.

A simple design-oriented model for FRP-confined high-strength concrete Jian Chin Lim1, a and Togay Ozbakkaloglu1,b 1School of Civil, Environmental and Mining Engineering, University of Adelaide, Adelaide, Australia ajlim@civeng.adelaide.edu.au, btogay.ozbakkaloglu@adelaide.edu.au Keywords: Fiber reinforced polymer (FRP); Confinement; High-strength concrete (HSC); Concrete; Axial stress; Axial strain; Model.
Vincent: FRP-confined concrete in circular sections: Review and assessment of stress–strain models, Engineering Structures, Vol. 49, (2013), p. 1068–1088
Oehlers: Manufacture and testing of a novel FRP tube confinement system., Engineering Structures, Vol. 30, (2008), p. 2448-2459
Ozbakkaloglu: Compressive behavior of concrete-filled FRP tube columns: Assessment of critical column parameters., Engineering Structures, Vol. 51, (2013), p. 188-199
Teng, Strengthening of short circular RC columns with FRP jackets: a design proposal., in: Proceedings of the 3rd International Conference on FRP Composites in Civil Engineering, Miami, Florida, USA, (2006)