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Determination of Sulfate Irons in Concrete by Spectrophotometer Qiaofen ZHANG 1,a, Feng LU 2,b, Zuquan JIN 2,c 1China Construction Second Engineering Bureau Ltd., Beijing 100054, China 2 School of civil engineering, Qingdao Technological University, Qingdao, 266033, China; aemail: qiaofenzhang@yeah.net, bemail: lufengdear@126.com, cemail: jinzuquan@126.com Keywords: spectrophotometer method, concrete, weight method, sulfate ion Abstract.

Introduction In recent years, with the research on natural disasters such as earthquake resistance, it was not only concerned about the safe of bridge engineering in limit state, but also about the elastic mechanical properties and monotonic loading conditions, plastic deformation and mechanical response, ductility under cyclic loading.
Although scholars at home and abroad has carried out some research in the of steel, they mainly aimed at a few materials in some special industry and some typical loading paths and it is also lack of understanding of constitutive of metallic materials which primarily used in civil engineering (such as 16Mn) and also lack of understanding constitutive of metallic materials under multiaxial non-proportional loading path and complex loading history.

Experimental study on measuring the steel stress via FBG sensors Hongwei Lin1 , Yuxi Zhao1,* 1Institute of Structural Engineering, Zhejiang University, PR China.
China Civil Engineering Journal. 34(2001) 40-44 (in Chinese)

But is more common in the practical engineering bias artifacts, axial compression artifacts compression only components of a special case[1].
China Civil Engineering Journal, 2005, 38( 10) : 44- 48 in Chinese

Introduction Fracture saturation in multilayer materials system is an important research topic(1-12) in composite material such as fuction graded material.and structure geology of geosciences and civil engineering. these fractures often are confined by the layer boundaries, and develop roughly perpendicular to the layer boundaries and parallel with each other. furthermore, the spacing of these fractures are approximately the same and lineally related to thickness of the fractured layer.
Journal of Engineering Mechanics, 123(1997):267-275 [9] Narr N., Suppe J. 1991, Joint spacing in sedimentary rock, Journal of Structural Geology, 13(1991):1037-1048 [10] Parvizi A, Bailey J.E., On multiple transverse cracking in glass fiber epoxy cross-play laminate.

Experimental study on the magnetic properties of MSMA and the Function of MSMA actuator of Reticulated shell structure Jinsheng He1,2,a Tao Yang1,b Sheliang Wang1,c Guangyuan Weng3,c 1School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi, 710055, China 2Academy of Building Research of Shaanxi Provincial, Xi’an, Shaanxi, 710082, China 3Depatmet of Highway Engineering, Shanxi Traffic Vocational School, Xi’an, Shaanxi, 710018, China ayangtao0604@163.com byanger2010@126.com cwangshel@aliyun.com Keywords: Reticulated shell structure; Magnetic shape memory alloy; Magnetic field; Coupling effects; Actuator drive Abstract.

Study on Mechanical Responses of Typical Asphalt Pavement Structure Xiao Li1,a, Shanqin Chen2,b, Qiwei Li3,a 1College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China 2China Communications 2nd Navigational Bureau 2nd Engineering Co., Ltd.

Research of Reliability Growth Evaluation of CNC Machine Tools Based on Weibull Distribution Yu Jie1,b Yu Shuang 2,a Song Yu-mei1 Wang Ting-ting1 Li Qiao-chan3 Sun Li-da4 Li Zhan-guo1 1Mechanical Engineering College of Changchun University, China ,130022 2Foreign Trade Department of Changchun Vocational and Technical College, China, 130020 3Xianyang Jingwei Textile Machinery Co., Ltd., 712000 4Ji Mo Vocational High School of Shandong Province, China, 266221 ayu99jie99@sohu.com b1141295967@qq.com Keywords: reliability, CNC machine tools, Weibull Distribution, evaluation Abstract: In light of the characteristics and small samples of the research of the CNC machine tools based on Weibull distributions, dynamic modeling and middle rank are used to evaluate the failure rate of each test phase.
Specialized subject: Reliability of CNC Machine Tools. 10 papers have been published in civil magazines.
Reliability Engineering[J]. (2003), p.6-8 [2]B.L.

Numerical Study of the Efficiency of Flat Plate Solar Collectors in Different External Conditions POPOVICI Catalin-George1,a, HUDISTEANU Sebastian1,b* 1 "Gheorghe Asachi" Technical University of Iasi- Romania, Faculty of Civil Engineering and Building Services, 1, D.Mangeron, IASI-700050, ROMANIA a catalinpopovici@climatherm.ro, b *seby_hudisteanu@yahoo.com Keywords: solar thermal panels, solar radiation, flat plate collector, renewable energy Abstract.
Behnia, Annual Performance Simulation and Benchmarking of an Advanced Solar Collector using TRNSYS, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, NSW 2052 [9] TRNSYS 16 Documentation [10] F.

Hydraulic Calculation Principle and Todini Formulation Algorithm Analysis Xin Zhao1, a, Qifen Li1,b , Jingjing Xu1, Lifei Song1, Linhui Zhao1, Jialin Zhao1 and Lei Zhang1 1College of Energy and Mechanical Engineering, Shanghai University of Electric Power, China aaqulingyu@163.com, bliqifen73@163.com Keywords: hydraulic calculation principle, Todini formulation, algorithm analysis.
“Formulating the water distribution system equations in terms of heads and velocity.” 10th Annual Symposium on Water Distribution Systems Analysis, American Society of Civil Engineers, Kruger National Park, South Africa, 17-20 August(2008).