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Dynamic behavior for an SIRS model with nonlinear incidence rate Junhong Li 1, a,*, Ning Cui 2,a,*, Hongkai Sun3,a a Department of Mathematics and Sciences, Hebei Institute of Architecture&Civil Engineering, Zhangjiakou Hebei, 075000, China 1, a,*jhli2011@163.com, 2,a,*cnmath80@163.com Keywords: SIRS model; global stability; Hopf bifurcation; limit cycle; simulations Abstract.

A Research on The Change Law of Small Wastewater Amount Mingyan Shi1,a , Yan Gao1,b School of Civil Engineering, Guangzhou University, Guangzhou, 510006,China amingyanshi@163.com,b63742394@qq.com Keywords: Wastewater treatment,Design,Flow rate,Temperature,Economic analysis Abstract.
In order to frame a perfect formulation called ‘The rule of small sewage amount treatment engineering design’, it has been investigated into the life wastewater discharge in some typical residential areas in Nanjing and Yangzhou, China.
Introduction To make the suitable for China's national conditions of the small domestic wastewater treatment engineering design technical regulation, must from management requirements, process design, operation mode and other links implement standardized management [1-2].The change rule of sewage water for the above work is the important prerequisite and foundation, is the decision small sewage treatment scale and processing technology of the reference basis, is the primary problem to be solved [3-4].
References [1] Shan Wang: Water & Wastewater Engineering, Vol.27(2001),p.12, In Chinese [2] Qingyu Liu, Shuwen Wang, Yinzhu Jiao: Technology of Water Treatment, Vol.31(2005),p.69, In Chinese [3] Junying Chu, Jining Chen, Can Wang: China Environmental Science, Vol.27(2007),p.273, In Chinese [4] Xingguang Wang, Caizhong Lv: Southwest to the drainage, Vol.27(2005),p.22, In Chinese

Enhancement of the Fatigue Property of the Crack of Cruciform Welded Joints by TIG-dressing Dongxia Li 1,a Baochun Jia 2,b Yanzhi Zhu1,c 1School of Civil Engineering and Architecture, ZhongYuan University of Technology, 41 West Zhongyuan Road, Zhengzhou, Henan 450007, P.R.China. 2TSC Zhengzhou Gear King Co., Ltd.
Therefore the TIG-technique gives a big potential for engineering application.
The TIG-dressing technology is used for offshore drilling platform and the actual application in the engineering structures [6].
References [1] DONGXIA LI, YING MEI, FANG JIA, BAOCHUN JIA: The Study of Fatigue Life of the Crack of Weld Bead, Fracture and Damage Mechanics, Key Engineering Materials, 2006.9 [2] JÜRGEN RUDOLPH: Endurance Limit of Ground and TIG Dressed Steel Welded Joints under Proportional Loading, Schweißtechnik, Chemie Ingenieur Technik (75), 2003.1-21 [3] LIXING HUO, DONGPO WANG, YUFENG ZHANG: Investigation of the fatigue behavior of the welded joints treated by TIG dressing and ultrasonic peeing under variable-amplitude load, International Journal of Fatigue, 27, 2005, 95-101 [4] LIU HONGWEN: Mechanics of Materials, Beijing, Higher Education Press, 2007 (in Chinese) [5] GAO Z T: Applications of Statistics in fatigue, Beijing, National Defense Industry Press, 1986 （in Chinese） [6] DONGXIA LI, BAOCHUN JIA: The effect of multiple weld and TIG on shape joints fatigue strength, Fracture Mechanics Symposium, 2008.10

Effect of Timber Grain Orientation on Bonded-In Rod Connection Systems Hannah Pearson1,a, Mark Evernden1,b, Richard Harris1,c 1Department of Architecture and Civil Engineering, University of Bath, Bath, BA2 7AY, UK aH.R.Pearson@Bath.ac.uk, bM.Evernden@Bath.ac.uk, cR.Harris@Bath.ac.uk Keywords: Timber, Glulam, Connections, grain angles, compression, tension, pull-out tests, strength, failure criterion Abstract.
Presented in this paper are the results of practical tests to determine some key material properties of engineered timber, in particular glulam.
Williamson, Wood Engineering and construction handbook, McGraw-Hill (1997) 5.36 [4] Forest Products Laboratory.
Wood handbook - Wood as an engineering material.
Barrett, Interaction term of Tsai-Wu theory for laminated veneer, Journal of Materials in Civil Engineering.

Increasingly, high performance engineering structures are being built with critical structural components made from composite materials.
In particular, the importance of carbon-fiber reinforced plastics (CFRP) has been generally recognized in both space and civil aircraft industries, and CFRP composite laminates are widely used.
Increasingly more high performance engineering structures are being built with composite materials.

Study on Green Construction of Building Engineering Yongjian Xiao Department of Architecture, Tibet Vocational Technical College, Lhasa, Tibet, China 850000 Keywords: Construction; Green Management; Useful Exploration Abstract.
Therefore, most of the use of management mode, such as in these countries: management and engineering organization.
We can in the tender document requirements for sustainable development be provisions to allow the contractor strictly adhered to, in addition can also be covered in the engineering and construction contract.
General construction, raw material consumption accounts for about 50% to 60% of the cost of civil engineering, construction units to the construction process of building materials orderly management.
Improve the overall quality management, regular training, allowed to acquire knowledge of architecture, social studies, biology, and environmental engineering and other disciplines.

Structure Calculation of Die Carrier and Determination of Pre-camber of Main Girder of Cable Stayed Bridge Hongyu Xu1, Deyong Cui1,Cong He2 1.Civil Engineering School, Henan University of Science and Technology, Luoyang 471023, China 2.Mechanical and Electrical Engineering School, Henan University of Science and Technology, Luoyang 471023, China Keywords: cable stayed bridge; determination of pre-camber; die carrier prepressing; FEM.
The linear control of main girder can attain excellent engineering effect.
(2) Engineering Projects This project locates on the Zhenshui Road in Xinmi City.
We can conclude that the accuracy of calculated construction pre-camber is higher and the determination method is more in line with the practical engineering.
Engineering practice shows that the method in this study is reasonable and it is applicative for the similar bridge.

Comparing Hysteretic Behavior of Flexible Piers with Different Stirrup Ratio and Slenderness Ratio YUAN Xiao-jing a, LIU Fan b Jiangsu Key laboratory of Structure Engineering, Suzhou University of Science and Technology, Suzhou 215011,China axiaojing0318006@126.com, bliufan63@mail.usts.edu.cn Key words: flexible piers; cyclic testing; stirrup ratio; slenderness ratio; hysteretic behavior Abstract.
Flexible piers have been widely used in bridge engineering due to its superior ductility.
China Civil Engineering Journal,2003,36(11): 65-69 [2] Sun Zhuo,Yan Gui-ping.
Engineering and Construction,2006,20(1),1-3 [6] Wei Yang, Wu Gang.
Ductility analysis of FRP-confined short rectangular reinforced concrete columns [J] Journal Of Earthquake Engineering And Engineering Vibration,2009,29(3):71-76

Study on Crack Bridging Ability of Polymer-modified Cement based compounds for Waterproofing Material Zhao Hong1,a *,Li Wei2,b,Zhang Yongming1,c 1 School of Materials Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai, China 200092 2Department of Civil and Environmental Engineering, National University of Singapore, EW1, 2 Engineering Drive 2, Singapore 117576 azhaohong@tongji.edu.cn,bliwei@nus.edu.sg,czym126@tongji.edu.cn Keywords: polymer-modified cement based compounds for waterproofing material, crack bridging ability, elongation Abstract.
In engineering applications, there is a requirement for higher bridging cracks ability of the products.
Crack bridging ability directly reflects the product’s ability of crack bridging, and is more in line with the actual requirements in engineering applications.
In engineering applications there is a requirement for higher cracks bridging ability of the products.
Fig. 4 Relationship between displacement and tensile strength Fig.5 Relationship between displacement and elongation at break Conclusion Crack bridging ability directly reflects the product’s ability to crack bridging, and is more in line with the actual requirements in engineering applications.

China Mechanical Engineering, 2001, 12(11): 1294-1297
CHINA CIVIL ENGINEERING JOURNAL, 2006, 39(1): 54~59 [16] Jun-wen WANG, Jian-zhong LI, Li-chu FAN, Parametric study of longitudinal seismic pounding response for continuous girder bridges，2005,18(4):42-47 [17] Jianzhong Li, Lichu Fan.
CHINA CIVIL ENGINEERING JOURNAL，2005, 38(l):84-89 [18] Xu XIE, Bo-qing GAO, Shan-xing WU, Chang-huan KOU.
Earthquake engineering and engineering vibration.2002,22(4):108-113 [20] Li-ying NIE, Jian-zhong LI, Li-chu FAN.
Journal of Bridge Engineering, 2000, 15 (1):67-74