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Study on Bridges’ Global Flexibility Index for Ambient Vibration Qing Du1, 2, a, Hongyu Jiang1, b ,and Xiaohui Li3,c 1College of Civil Engineering, Hebei University of Technology, Beichen District, Tianjin, China, 300401 2Engineering Technology Research Center of Hebei Province, Beichen District, Tianjin, China, 300401 3College of Science, Hebei University of Technology, Beichen District, Tianjin, China, 300401 ahebutdq@sina.com, bhongyujiemei@163.com, clixiaohui@hebut.edu.cn Keywords: Global Flexibility Index, Flexibility Matrix, Ambient Vibration.
The finite element model calibrate the material characteristics and geometrical features consist of mass density of the concrete(ρ), modulus of elasticity(modulus of elasticity) and thickness of deck paving(h) as parameters.
References [1] Anun Patjawit and Worsak Kanok-Nukulchai: submitted to Journal of Structural Engineering.
[2] Raghavendrachar and M, Aktan AE: submitted to Journal of Structural Engineering (1995)

Ding 1 School of Material Science and Engineering, Shanghai Jiao Tong University; Shanghai, 200030, China axingwuguo@sjtu.edu.cn, b Changjw@sjtu.edu.cn, chsm006@sjtu.edu.cn, Key words:GW63; Corrosion.
Peng, Journal of Alloys and Compounds In Press, Corrected Proof, Available online 2 May 2006
Peng, Journal of Alloys and Compounds In Press, Corrected Proof, Available online 6 January 2006

So, the stress-strain formula of concrete under long-term loading is (1) Age adjusted effective modulus is (2) Aging coefficient is (3) Creep analysis models Supposing concrete is elastic material, and deformation of beam is accordance with plane section assumption, as well as the interface of steel and concrete keep well bonding and has no slip.
Building Science, Vol.2(1991), P. 3-8.
ACI Journal, Vol.69(1972), P. 212-217 [6] Baojun Sun.
China Civil Engineering Journal, Vol.3(1993), P. 66-68.

The use of plate thickness 4mm plexiglass plate design 8 perforated plate, orifice with area staggered hole arrangement, in order to observe the cavitation state, perforated plate and the occurrence of cavitation section with see-through plexiglass material.
,Pandit A.B, Water disinfection acoustic and hydrodynamic Eng.Journal 2001,7:201-212
[7] Chen Lijun,Wu Chunde,Zhang Jiexin, Hydraulic cavitation applications in water treatment research progress [J].Ecological science,2006,25(5):476-479.
(In Chinese) [8] Xu Meijuan,Wang Qishan, Characteristics of perforated plate on hydraulic cavitation - Fenton reaction processing effect of wastewater[J].Journal of Tianjin University, 2012,45(7):615-620.

The material of the girder/double thin-wall piers of the bridge is C50 concrete, of which density is 2500 kN/m3, the elastic modulus 35000 MPa and poisson's ratio 0.167; the diameter of the 1860 prestressed steel strand is 15. 24 mm, density 7710 kN/m3, elastic modulus 190. 0 GPa and poisson's ratio 0.3.
References [1]Maeda K, A, Takano H:Tokyo: Elsevier Science Publisher (1991) p.377
[3]Mari AntonioR, Valdes Manuel:Journal of Bridge Engineering Vol.5 (2000) p22
[8] M.Z.Cohn, Z.Louis: Journal of Structural Engineering Vol.120 ASCE(1994) p.474

Material of bridge steel takes Q345qc, compressive strength of concrete being 33.15MPa, rebar being HPB235φ10, and steel yield strength of the PBL shear being 420MPa.
A theoretical analysis and experimental study on the flexural behavior of extern ally prestressed composite beam with corrugated steel webs [J].China Civil Engineering Journal, 2004, 11(37):50―55.
The study of PBL shear key bearing capacity factors and bearing capacity formulas, Journal of Railway Science and Engineering, 2007.12(6)

Silica is a non-toxic and chemically stable material and has been used for many applications.
Katsuoka, Disinfection potential of electrolyzed solutions containing sodium chloride at low concentrations, Journal of Virological Methods. 85 (2000) 163–174
Chiu, Preparation and Characterization of polyvinyl alcohol/ chitosan blended membrane for alkaline direct methanol fuel cells, Journal of Membrane Science. 419-420 (2012) 65-71

References [1] Dou Yihua, Xu Airong: Petroleum Machinery Vol. 38(9) (1992), p.119 [2] Liu Hongwen: Material Mechanics, Higher Education Press (1992), p.212 [3] Hao Junfang, Gong Weian: Casing strength calculation and design, Petroleum Industry Press(1987), p.20 [4] Dou Yihua, Zhang fuxiang: Drilling & Production Technology Vol. 30(5) (2007), p.17 [5] Guijie Yu: Oil Field Machinery Vol.39(5)( 2010),p.1 [6] Pingen LI, Youquan Yin: Journal of Peking University Vol.43(1)( 2007),p.11 [7] Feng Qian, Deli Gao: Journal of Natural Gas Science and Engineering Vol.3(2011), p.530 [8] S.M.Willson, A.F.

Colloid between the asphalt and oil content, it is a kind of viscous semi-solid material, adhesive and strong tinting strength, generally for brown to black color.
Chinese science bulletin, 1999, 44 (19): 2018 ~ 2022
Journal of oil and gas field surface engineering, 2000, 12 (6): 12 ~ 13
Journal of petroleum pitch, 2007, 21 (2): 1 ~ 6

Synthesis of 1, 2-Aceanthrylenedione Catalyzed by Anhydrous AlCl3 Zhang Chunyan1a, Chen Min 1b, Zhang Yan 1, Yuan Xinhua2, Liu Hua1 1 School of chemistry and chemical engineering, Jiangsu University, Zhenjiang 212013 China; 2School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013 China.
Katdare, journal of catalysis.
Journal of Molecular Catalysis A: Chemical Vol.253 (2006),P.203-206