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Effect of Temperature on CO2/H2S Corrosion of Oil Tube Steels Ying Wanga Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China aeappol@126.com Key words: Steel N80, Steel P110, Temperature, Corrosion rate Abstract: The CO2/H2S corrosion behaviors of oil tube steels N80 and P110 at different temperature were investigated by corrosion rate calculation and corrosion morphology observation.
CO2 or H2S corrosion is intensively studied and related engineering problems are being solved, and corrosion in CO2/H2S coexistent environments is outstanding.
It is hoped to provide experimental base for selecting corrosion resistant material and taking engineering protection measures in oil and gas field.

Effect of CO2 Partial Pressure on CO2/H2S Corrosion of Oil Tube Steels Ying Wanga Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China aeappol@126.com Key words: Steel N80, Steel P110, CO2 partial pressure, Corrosion rate Abstract: The CO2/H2S corrosion behaviors of oil tube steels N80 and P110 at different CO2 partial pressure (45psi, 135psi, 225psi, 315psi) were investigated by corrosion tests, corrosion rate calculation and corrosion morphology observation.
While CO2 or H2S corrosion is intensively studied and engineering problems are being solved, corrosion in CO2/H2S coexistent environments is outstanding and it is urgent to carry out relative study on its corrosion and protection.
It is hoped to provide experimental base for corrosion resistant material selecting and protection engineering in oil and gas field.

Sensitivity analysis on dynamic properties of large span concrete-filled steel tube arch bridge Hang Sun1, a, Xiao-jian2,b Xiu-yun Gao1,c 1School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China, 150090; PH (86) 451-86282121; 2College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China a email: bridge_hit@163.com, bemail: hxiaojian@126.com, cemail: gaoxy@163.com Keywords: concrete-filled steel tube arch bridge; dynamic properties; Sensitivity analysis Abstract: The calculation formula of the vertical fundamental frequency of arch bridge has been given in current design codes, in which the rise-span ratio is the only variable on condition that the structure mass and stiffness are known.
Concrete Filled Steel Tube Arch Bridges Engineering Examples.

Effect of polymer admixtures on metakaolin-based geopolymer MIKHAILOVA Olesia1, a, ROVNANÍK Pavel1, b 1Faculty of Civil Engineering, Brno University of Technology, Veveří 95, Brno, Czech Republic amikhailova.o@fce.vutbr.cz, brovnanik.p@fce.vutbr.cz Keywords: geopolymer, metakaolin, polymers, compressive strength, flexural strength Abstract.
Nair, Subha Vishnudas in: Geopolymer binder from industrial wastes: a review, Proceedings of the International Conference on Emerging Trends in Engineering and Management (ICETEM14), Ernakulam, India, (2014), pp. 219-225
Research Journal of Applied Sciences, Engineering and Technology, Vol. 7(7): (2014) pp. 1278-1282

Different Design Parameters Analysis of Unbonded Precast Reinforced Concrete Frame Structure Han Jianqiang 1, a, Fu Xiuyan 2, and Tang Jiangming 3 1 Earthquake engineering research center of Hebei Province, Civil engineering of Hebei United University , Tangshang, China 063009 2Tangshan architectural engineering medium training school, Tangshang, China 063000 3 Hebei Province Handan construction work group, P.R.China, Handan, China 057150 atshjq@139.com Keywords: precast, reinforced concrete, seismic performance, design parameters Abstract.

ANSYS simply supported deep beams based on the study of mechanical properties Yongbing Liu 1, a, Xiaozhong Zhang 1,b 1 School of Architectural Engineering Of Quzhou Univercity,ZheJiang,Quzhou,324000,China aliuyb2050@126.com, bzhangxiaozhong@126.com, Keywords: simply supported deep beam, mechanical properties, ANSYS.
Yang: Guangdong Civil Engineering & Construction(In Chinese) No. 9 (2005), p.11 [3] J.F.
Tang:J. of University of Science and Technology of Suzhou(Engineering and Technology)(In Chinese) Vol. 18 No.3 (2005), p. 19 [4] Z.J.

The Effect of Confinement Method and Specimen End Condition on Behavior of FRP-Confined Concrete under Concentric Compression Thomas Vincent1,a and Togay Ozbakkaloglu1,b 1School of Civil, Environmental and Mining Engineering, The University of Adelaide, Adelaide, South Australia, Australia 5005 atvincent@civeng.adelaide.edu.au, btogay.ozbakkaloglu@adelaide.edu.au Keywords: Fiber reinforced polymer (FRP); Confinement; Confinement method; End Condition; Concrete-filled FRP tube (CFFT); FRP wrapping.
Engineering Structures, 30 (9), 2448-2459
Composites Part B-Engineering, http://dx.doi.org/10.1016/j. compositesb.2013.02.017.

Experimental Studies on Acoustic Emission of Different Damaged Concrete Hongguang Ji 1,a, Xurong Li1,b, andChenglin Song1,c 1School of Civil and Enviromental Engineering,University of Science and Technology Beijing, Beijing,China ajihongguang306@ces.ustb.edu.cn, blixr0911@163.com,clianyi6789@163.com Key words: Concrete; Damage; Acoustic emission signal.
(In Chinese) [4] H.G.Ji and M.F.Cai:Chinese Journal of Rock Mechanics and Engineering, Vol. 22 (2003) No.2, p.227.
(In Chinese) [5] H.G.Ji and M.F.Cai:Chinese Journal of Rock Mechanics and Engineering,Vol. 18 (1999) No.9, p.157.

Experimental Study of Heat Pipe Exchanger for High Power LED Cooling System GOU Yun-Jun1, a Zhong Xiao-hui2, b 1 Department of Civil Engineering, Tangshan College, Tang Shan City, China 2 College of Metallurgy and Energy, Hebei United University, Tangshan, Hebei, 063009, China ahbtsgyj2008@163.com(corresponding author), bzhong_xiaohui@163.com Key words: heat pipe, high power LED, heat transfer coefficient Abstract: A new cooling concept for high power LED street lamp by combining the heat release of high power LED with two-phase heat transfer heat pipes was proposed, and in this study a series of heat pipes with specific fins structure were developed.
E2011209050), Project of Sci &Tech Research and Development of Tangshan (No. 10110225C) and Instructional Technical Project of Construction Research of Hebei Province (No 2011-205) References [1] Maidanik Y,Solodovnik N,Fershtater Y,et al.Inves-tigation of Dynamic and Stationary Characteristics of a Loop Heat Pipe.In:International Heat Pipe Conference.Albuquerque,New Mexico,1995 [2] Ku J,Rogers P,Kaya T,et al.Testing of a Loop Heat Pipe Subjected to Variable Accelerating Forces.Part 1:Start-Up.Society of Automotive Engineers.Paper No 2000-01-2489,2000 [3] Chen Wei, Luo Xiao-Bing.
Journal of Engineering Thermophysics.

Environmental Risk Assessment of General Contractor’s EPC Project Wangqing Li 1, a, Li Song 2, b 1 School of Economics Management, Hebei University of Engineering, Handan056038, China 2 School of Economics Management, Hebei University of Engineering, Handan056038, China alwq9006@163.com, b xiaoli870221@126.com Keywords: EPC;environmental risk; unascertained method; entropy; risk evaluation Abstract.
Evaluation index system of environmental risk of EPC project Environment force majeure Frequency and losses of arising weather disasters, accidents Frequencies and loss of arising complex geological frequency and loss of arising natural disasters frequency and losses of arising social events the owners risk Contract failure and litigation Ability to pay Willingness to pay policy the risk of Policies and laws and regulations maybe change Autocratic behavior of government departments The risk of war and civil strife Vendors Purchasing behavior Time delivery of goods 2.3 Classification standards of indicators comment space Environmental risk assessment evaluation of EPC project involves environmental risks from different angles.
[4] Xiao Limin.The Risk Warn in Study International Engineering Contract Vol.2006 [5] Zhao Yumei.The Study Communication Construction Project Risk Management in EPC (2003) [6] Li Wanqing,MLihua,Men Wenqing.The Application of Unascertained-entropy right in Comprehensive Evaluation of Safety Fully-mechanized Face.Vol.2007,32（6）:612～616 [7] Liu Kaidi,Wu,He qing,Pan Yanjun,Uncertain Information Mathematic Treatment and Application.Vol.1999 [8] Li Wanqing,Zhou Chong,Men Wenqing.The Application of Unascertained Mathematics Safty of Construction.Vol.2006,23（2）:83～85