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Modal analysis for space grid structure under different supporting conditions Yan LV 1, a, Lai Wang 2,b 1 Shandong University of Science and Technology, Qingdao, China, 266590 2 Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology), Qingdao, China, 266590 a lvyan19870222@yahoo.cn, b wlkdtjxy@sina.com Keywords: Space grid; Modal analysis; supporting conditions Abstract.
Therefore, free edges should be treated properly in practical engineering, in order to improve the stress states of grid structure.
In recent years, grid structure has been widely developed and used in large-scale civil engineering, especially in stadiums, airports, train stations, operas and so on.
Engineering situation The plane dimension of grid structure in this project is 45m×45m, height is 3m and grid number is 15×15.
[6] Xinmin Wang: ANSYS engineering structure numerical analysis (China Communications Press, China, 2007).In Chinese.

Experimental Study about the Performance of the Piezoelectric Friction Damper Jigang Zhang 1, 2, a, Wenyan Deng 1,b and Jian Han 1,c 1 School of Civil Engineering, Qingdao Technological University, Qingdao,Shandong,266033,China 2 State Key Laboratory of Coastal and Offshore Engineering in Dalian University of Technology, Dalian, Liaoning, 116023, China azhangjigang_hit@163.com, bdwyskybird168@yahoo.com.cn, chanjian082@163.com Keywords: PZT Friction Damper； Piezoelectric Ceramic Actuator； Response Time； Hysteretic Behavior.
Because of its excellent energy dissipation capacity, friction damper has a wide application in engineering structure, while its use is restricted by constant frictional force.
Under a large clamping force, small vibration will not lead to the damper to slip and dissipate energy; under a small clamping force, there will be a slip, but the total energy dissipation is not high[2,3], which makes the friction damper to be greatly restricted in civil engineering.
[2] Colajanni P, Papia M: Engineering Structures, Vol. 17 No. 2 (1995), p.l29-140
[3] Nishitani A, Nitta Y, Ishibashi Y, in: Structural control based on semi-active variable friction dampers, Proceedings of the 12th World Conferences on Earthquake Engineering,Auck land.

Multi-Degree of Freedom Vibration Theory and Engineering Application Minyuan Huang College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, Hunan, China Hmy555@163.com Keywords: Multi-Degree of Freedom, Vibration, System Model, Discretization, Simulation, Harm, Treatment.
Harm treatment of engineering vibration is the key to enhance structure durability.
Engineering Application We should inspect as the case in the modeling of MDOF vibration and make our effort to establish good equation for get the best engineering fitting.
First is the discretization of the engineering structure.
Harm treatment of engineering vibration.

A Practical Mathematical Model for Nonlinear Hysteresis of Metal Rubber Isolator Yanguo Zhou1, a, Wenzhong Qu1,b and Li Xiao1,c 1School of Civil Engineering, Wuhan University, Whuan,430072,China azhouyanguowhu@126.com, bqwz0803@yahoo.com.cn, cxiaoli6401@126.com Keywords: hysteresis,dynamic model, metal rubber, nonlinear damping, parameter identification.
These features are very useful in practical engineering application.
Journal of Vibration Engineering(In Chinese), Vol. 14(2001),p. 334
China Civil Engineering Journal(In Chinese), Vol. 43 (2010), p. 352
Hysteresis Vibration System and Engineering Application, Beijing,Science Press,2002.

Total Sustainable Evaluation for Road Projects Norhan Sayed1,a*, Mohamed Abdel-Hamid2,b, Karim El-Dash3,c 1-3Benha University, Faculty of Engineering Shoubra Civil Engineering, Cairo, Egypt amohamedmagdy.asha@gmail.com, bmhamid01@gmail.com, ck_eldash@hotmail.com Keywords: Infrastructure, roads, sustainability.
Canadian Journal of Civil Engineering
American Society of Civil Engineers, Reston, VA: pp. 68–76 http://dx.doi.org/10.1061/ 9780784412299.0010
Advances in Civil Engineering, 2018, 1–13. doi:10.1155/2018/8183536
Canadian Journal of Civil Engineering CSCE (In press).

Civil aviation system safety multi level fuzzy evaluation method [J].
Extension engineering method[M].Beijing Science Press,1997
[4] QiuFeng Fang,DaHai Wang.Based on matter element analysis method for civil aviation system safety evaluation[J].
Journal of China Civil Aviation Flying College, 2008(6):20-26.

A Pushback Slot Allocation Equilibrium Model Based on Game Theory Lihua Liu1,2, a, Yaping Zhang1,b and Yu Wei1,c 1School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China 2School of Transportation Engineering, Henan University of Urban Construction, Pingdingshan, 467044, China aliulihuaalicia@126.com, bzxlt0905@163.com, cweixiaoyu8899@163.com Keywords: Pushback Slot; Slot Allocation; Game Theory; Equilibrium Abstract.
At the same time, the civil aviation business demand continues to rise in recent years.
Over the next 20 years, China's civil aviation will continue to maintain rapid growth [3].
When airport capacity is less than flights traffic, it will cause congestion and delays and bring the civil aviation transportation challenges.
Civil aircraft market forecast in 2011-2030.

I: Consist and Contents Ling Luo 1, 2, a, Baisong Du1, b, Hong Luo1, c 1School of Civil Engineering & Architecture, Chongqing Jiaotong University,Chongqing,400074, China 2 School of Civil Engineering & Architecture, Chongqing University of Science & Technology, Chongqing 401331, China aluoling28@qq.com, b baisongdu@gmail.com, c hong9507@163.com Keywords: bridge and culvert engineering; cable-stayed bridge; health monitoring system; layout of the measuring points Abstract.
Engineers in Thailand and South Korea currently has started to install permanent real-time monitoring system and alarm equipment on some important bridges.
Bridge Engineering, China Communications Press, 2007.
Y.: Transactions of Hong Kong, Institution of Engineers, Vol. 10(2003), p. 38-47
J.: Proceedings, 2nd International Conference on Identification in Engineering Systems(1999), Swansea, UK, p. 506-515.

Enhancing Engineered Cementitious Composite by External and Internal Hydrophobization HRBEK Vladimír1, a *, PETRÁŇOVÁ Veronika1, b and NĚMEČEK Jiří1, c 1Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Czech Republic avladimir.hrbek@fsv.cvut.cz, bjiri.nemecek@fsv.cvut.cz, cveronika.petranova@fsv.cvut.cz Keywords: Engineered cementitious composite, hydrophobization, water absorption.
Engineered cementitious composites (ECC) are characterized with increased ductility and strain hardening due to its internal structure design.
Unlike common reinforced concrete, the damage in engineered cementitious composites (ECC) is characterized by creating multiple fine cracks instead of localized one under tensile strain deformation or cyclic load.
Shah, Nano-engineered Superhydrophobic and Overhydrophobic Concrete, Nanotechnology in construction (2015), pg. 443 - 449 [4] E.

The building is divided into industrial and civil buildings, in the construction of energy-efficient, people focus more gathered in the civil building energy conservation, in fact, in recent years, a survey showed that, in our country every year to complete the project investment, industrial and civil architecture is 53:47, industrial buildings accounted for most.
Because of the characteristics of industrial building energy consumption, determines the energy-saving industrial building is a very complicated system engineering.
Energy saving industrial building and civil construction, has its application specific.
Building energy consumption for each building type and infiltration (civil, public, industry), and our construction survey and statistics still remain in the individual types of buildings.