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Structural Analysis Based on Coefficient Reduced-basis Method Yonghong Li 1,2,a 1 College of Civil Engineering and Mechanics, 2Institute of Rheological Mechanics &Material Engineering, Central South University of Forestry & Technology, Changsha, 410004, P.R.
However, the linear elastic operators of some practical engineering problems can’t be expressed explicitly by design parameters.
Furthermore, the linear elastic operators of the practical engineering problems can’t be expressed explicitly by design parameters.
Patera, et al: Computer Methods in Applied Mechanics and Engineering Vol. 194 (2005): 3090-3107 [3] V.
Karen: Doctor Degree thesis , Massachusetts Institute of Technology(2003), p. 45-118 [4] Yonghong Li, Guangyao Li, Guirong Liu: China Mechanical Engineering Vol. 18(2007), p. 232-234 (In Chinese) [5] Yonghong Li: Advanced Material Research Vol. 225-260(2011), p. 84-88

The Project Bid Evaluation Based on Triangular Fuzzy Number and Its Application Yuanfang Xie1, a, Xingjun Cheng1,b and Xin Zhang 1,c 1School of Civil Engineering, Chang An University, No. 161 Chang An Road, Xi'an, Shaanxi Province,710061, China afyx619@126.com, bchengxingjuntb@126.com, c345147994@qq.com Keywords: triangular fuzzy numbers, fuzzy evaluation value, sequence.
Introduction Construction project bidding is widely recognized by the international community , commonly used as a distribution or undertake engineering tasks transactions, China from the 1980s starting to the progressive introduction of a bidding system[1].
For the construction side, the evaluation work is a crucial part of the whole tendering work, how to fairly and objectively evaluate of bids, to choose the construction unit to complete the task of building, to achieve superior quality , short duration , low cost purposes, and scientific engineering project bidding , has always been researching of engineering tender areas.
The apply of fuzzy comprehensive evaluation theory in the engineering bid evaluation press[J].
Journal of heilongjiang institute of engineering (Natural science edition), 2007,21(2).

Effect of polymer to early mechanical property of the fly ash slurry Yuezhong LIN Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology) Qingdao China 266590 jcssust@163.com Keywords： Polymer Fly ash slurry Early mechanical property Abstract: In this paper, different polymer dosage in case of early mechanical properties of fly ash slurry, through testing studies have shown that it can increase 7d flexural strength of fly ash slurry in low dosage, result in lower intensity in high dosage.
Excellent performance makes the polymer slurry in engineering more widely, especially repair works.
This test latex powder at different dosage of fly ash grout under the early performance indicators, systematically mastered the latex powder content on properties of fly ash cement the influence of the early and early mechanical properties of fly ash slurry, polymer latex powder in engineering applications to provide better reference.
This reflects the significant improvement in the polymer slurry of fly ash in the early elastic, that is, fly ash slurry early increase flexibility, it has a greater resistance to deformation and cracking capacity, while the bracing of coal road and windproof and fireproof, just need such properties of the material, so it can be widely used in mine for leak-proof wind engineering and fire protection engineering [6,7].
Polymer will help improve the early flexibility of the fly ash slurry, can increase the deformation, suitable for large deformation of the project, additional works deformation resistance, it can be widely used in mine air leak and fire protection engineering.

Calculation on Crack Resistance of Reinforced Concrete Exterior Joints with Special-Shaped Columns Fulai Qu a, Yuzhu Bai b, Peiyuan Tianc and Luyang Qi d School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450011, China aqfl@ncwu.edu.cn, b243059607@qq.com, c851488770@qq.com, d1101559863@qq.com Keywords: special-shaped column; frame joints; flange; crack resistance; effective width.
Stefano, Relevance of beam-column joint damage and collapse in RC frame assessment, Earthquake Engineering, 6 (2002) 75-100
Said, Shear strengthening of beam-column joints, Engineering Structures, 24 (2002) 881-888
Li, Investigation on Frame Joint with Special-shaped Columns, Structural Engineers, 2 (2002) 52-57
Li, Experimental studies on seismic behavior of special-shaped column joints of RC frame, World Earthquake Engineering, 22 (2006) 70-73

Classification Prediction Method Used in Coal Crushing Zhang Lisong, Yan Xiangzhen, Yang Xiujuan College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, Shandong, China alisongzhang1982@163.com, byanxzh@163.com, cyangxj999@163.com Keywords: Hoek-Brown criterion; Coal crushing; The coefficient of coal crushing Abstract.
Based on the combined spring model, the three principle stresses of coal seam can be expressed as follow: (12) 5 Secondary criterion classification prediction of coal crushing for ZP-05 According to engineering experience, , and are obtained with the value 15, 0.5 and 0.46.
Simplified method for national standard for engineering classification of rock mass.
Computer Methods in Applied Mechanics and Engineering 193(27): 3035-3056
Characterizing rock masses by the RMI for use in practical rock engineering.

Study on the Influence of Pit Excavation on the Stability of Underground Openings Using Different Models Yaxin Yang1,a, Guojian Shao1,b , Jingfu Yu2,c and Guangyuan Chen3,d 1Department of Engineering Mechanics, Hohai University, Nanjing, China 2Nanjing Institute of Architectural Design & Research (Co., Ltd), China 3Department of Building Engineering, Tongji University, Shanghai, China acylonyang@126.com, bgjshao@hhu.edu.cn, cYjf1218@163.com, dcgy1235@126.com Keywords: Pit excavation; Underground openings; Plane strain model; Stability; Comparison.
Project Summary A certain engineering site was in irregular shape (as shown in Fig.1), with total land area of 28,699.16 m2 and a total construction area of 129,523.99 m2.
Chinese Journal of Rock Mechanics and Engineering, 1996, 15(4): 377-384 (In Chinese)
Journal of Engineering Geology, 1998, 6(2): 120-127 (In Chinese)
Guangdong Civil Engineering and Construction, 2001, (9): 12-14 (In Chinese)

Stiffness Analysis of Steel Plate with a Rectangular Cut out Bonded by Composite Patch Xiang ming Zhang 1, a, Ze long You 2,b and Kui Du 3,c 1 College of science, Naval Engineering University, China, Wuhan 2 Naval Engineering University, China, Wuhan 3 Office of Research Development, Naval Engineering University, China, Wuhan azhxm312@sina.com, b459437521@qq.com, cdk30033@163.com Keywords: Relative stiffness, Rectangular, Composite, Bonding, Mechanical property, Analytical solution.
Yang: Materials for Mechanical Engineering Vol. 29(2005), p. 13-15 (In Chinese) [6] Y.H.
Sun: Journal of Civil Aviation University of China Vol. 18(2000), p. 13-16 (In Chinese) [7] L.W.
Zhang: Journal of Naval University of Engineering Vol. 20(2008), p. 36-40 [8] Q.Y.
Tao: Ornal of Materials Engineering Vol. 1 (2003), p. 21-23 (In Chinese) [9] X.M.

The Random Calculation Model of Chloride ion Concentration in Concrete Hongbo Zou1, a , Xiaoyong Luo2, b, Aijun Chen1, c 1Department of Building Engineering，Hunan Institute of Engineering, Xiangtan, Hunan, China, 411108 2School of Civil Engineering and Architecture, Central South University, Changsha, Hunan, China,410083 abluebobo@tom.com, btudou0522@163.com, ccaj3026@sina.com Keywords: Chloride ion, Diffusion Coefficient, Random Model Abstract.
In fact chloride ion concentration will not reach a fixed value immediately after the actual engineering components are exposed to a chloride ion environment especially those components in coastal areas [1,2,3].

Shaking table experimental study on damage mechanism of the disconnecting switch under seismic excitation Paweł Dembowski1,a and Robert Jankowski1,b 1Faculty of Civil and Environmental Engineering, Gdansk University of Technology, ul.
Zembaty, in: Proc. of 14th European Conference on Earthquake Engineering, paper ID 844, Ohrid, Macedonia (2010)
De Silva: Earthquake Engineering and Structural Dynamics Vol. 8 (1980), p. 337
Jankowski: Earthquake Engineering and Structural Dynamics Vol. 39 (2010), p. 343

THE yield line method for oblique plate moment coefficient Zhenji Cao 1,a ,Lang Cao1 ,Deng Lianghao2 1College of Civil Engineering and Transport,Hohai University ,Nanjing 210098,china 2Nanjing Hydraulic Research Institute ,Nanjing210029,China aczj849738245@qq.com Keywords: yield line; parallelogram plate; bending coefficient Abstract.
Introduction With the vigorous development of the construction enterprise, and in order to meet the needs of building function, some complex architectural structures are appeared .Rectangular plate and circular plate as a basic element for plate cannot satisfy the needs of practical engineering any longer and parallelogram plate has been widely used In flat structure design of building.
Bending moment coefficient formula of separated type and bending type oblique reinforcement of the parallelogram plate is deduced, which is a simple and practical calculation method for engineering design and is a reference for designer.
(5) Generally: , (6) Usually in engineering, where b=2, so (7) Assuming that ,and , So the ultimate bending moment can be obtained from the limit balanced Eq.(1) through above assumption.