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Online since: December 2013
Authors: Xiao Mei Gong
Research on cooperative scheduling and design of emergency command system of integrated transport hub Gong Xiao Mei Electrical/Electronic Engineering Beijing Information Technology College Beijing, China gongxm@bitc.edu.cn Keywords: Transportation hub; Cooperative scheduling; Emergency Command; Functional Architecture Abstract.
Integrated transport hub of urban public transport system as an important node, is a high population density, multiple modes of transport, such as civil aviation, railways, highways, rail transportation, city buses, taxis and other transit hub, which contains a lot of insecurity, once the disaster is likely to lead to major security incidents affecting their city or region in which the public safety.
Therefore, the construction and improvement of the city's comprehensive transportation hub emergency response system is very necessary. 2 System building goals Integrated transport hub should meet the new situation integrated transport hub cooperative scheduling and emergency command and the needs of the station passenger and vehicular traffic safety monitoring, while further synergies subway, bus, civil aviation and other modes of transport scheduling programs and information sharing, to achieve synergy scheduling and optimization of transport organization for travelers to provide safe and efficient transfer service.
Online since: January 2015
Authors: Anastasia N. Fedosova, Sergey I. Dubinsky, Oleg O. Egorychev
Fedosova3,c 1,2,3Moscow State University of Civil Engineering (MGSU), 26, Yaroslavskoe shosse, Moscow, 129337, Russian Federation aolenek31@gmail.com, bmgsu@broll.ru, csergdubpodlipki@mail.ru Keywords: Architecture and Construction aerodynamics, numerical simulation, wind loads, high-rise buildings, simulation of wind loads Abstract.
Effect of high-rise buildings aerodinamichekih parameters on the microclimate of the urban environment and aeration [Vlijanie ajerodinamichekih parametrov vysotnoj zastrojki na mikroklimat i ajeraciju gorodskoj sredy] // Industrial and civil construction. 2013. № 9. p. 39-41
Online since: September 2013
Authors: Ben Teng Liu, Xiao Li Bi
Underground space developed in state of disorder in the urban construction, most of development and construction are avail themselves of every opportunity with civil air defense department.
The early construction of underground Civil Air Defense projects space does not have the characteristics of commercial space.
Construction of underground space engineering and technical, oriented tendencies, does not focus on humane care and economic feasibility. 2.3 Approaches In response to these problems, the project proposes integrated design of floor and under ground by using mechanism of urban design.
Online since: January 2012
Authors: Yi Peng Yang, Xiao Hui Li, Qing Du
Stress Monitoring on Cantilever Construction Stage of the Main Bridge of South-to-North Water Transfers Canal Qing Du1,2,a ,Yipeng Yang1,b ,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, byangyipeng1986@qq.com, clixiaohui@hebut.edu.cn Keywords: Pre-stressed Concrete Bridge, Cantilever Construction, Stress Monitoring.
Finite element model The finite element model of the main bridge is established by Midas/Civil.
Online since: July 2014
Authors: Xiao Ping Feng, Chun Ting Li, Jun Jie Wu
Thermal simulation analysis of insulation of the new heat-insulation bricks Xiaoping Feng 1,a, Chunting Li 1,b, Junjie Wu2,c 1School of environment and civil engineering, JiangNan university, Wuxi, 214122,China 2Haila building materials technology dafeng co., LTD, Yancheng, 224100, China amickey925@qq.com, bfxp_99@126.com, c13605112256@163.com Keywords: Heat-insulating bricks, ANSYS, Thermal conductivity, Heat transfer resistance Abstract: Using the ANSYS thermal analysis module to do steady thermal analysis of given heat-insulating bricks.
What's more, the equivalent heat conductivity of the air space is calculated by the Civil Building Thermal Design Code, and the value are shown in table 1.
Online since: December 2009
Authors: Arnon Chaipanich, Nittaya Jaitanong
I�TRODUCTIO� Cement-based electroceramic composites have good compatibility with civil engineering's main structural material-concrete.
It not only has sensing function, but also actuating property, which is very suitable for application in civil engineering fields, such as high-rise buildings, long-span bridges and some buildings whose failure would cause disasters, including nuclear waster containment structures, dams, and bridge decks [1-3].
Online since: August 2013
Authors: Ju Jin, Xiao Fan Zhu, Hai Feng Ren
Deformation analysis of Short and Medium Span Curved Beam Bridge Ju Jin 1, a, Xiaofan Zhu2, b, Haifeng Ren1, c 1School of Civil Engineering, Hebei University of Technology,Tianjin ,300401, China 2Tianjin Research Institute of Building Science Co,Ltd, Tianjin ,300193, China aemail: jinju02@126.com, bemail:steven993 @126.com,cemail:renhf80 @163.com Keywords: Curved Beam Bridge;Deformation;finite element method Abstract.
In this paper, by analysis of engineering examples, using ANSYS finite element analysis software modeling and calculating, we get the deformation law of small and medium span curved girder bridge under deadweight and prestress, and the law has guiding significance and practical value on design.
Conclusions This paper analyzes the deformation of small and medium-span curved girder bridge by engineering examples, and draws following conclusions
(3)The paper selects radius from 40m to 300m, which basically covers the radius range of curved bridge in engineering, and considers the influence of bridge structure dead weight and prestressing, so it has a wide range of applicability. [4] Acknowledgment Curve bridge built in large and medium-sized city, not only to meet the traffic’s functional requirement, but also to meet people 's aesthetic vision requirements.[5] I want to say “thanks” to all the people who helped me ,especially my sister and her husband.
Chinese and foreign highway.2007.4 [2] WANG Haifeng.The stress characteristics of Prestressed Curved Girder Bridge and the problem need to pay attention in design .2009 [3] CHEN Zhongchao.Diseases and Treatment Measures for Curved Beam Bridges.Structural Engineers.2008.2 [4] JIN Ju.
Online since: May 2015
Authors: Veronika Čapková, Ivana Zetková
It focuses on various areas of application, advantages and disadvantages of this manufacturing technology as well as introduction of two methods DMLS (Direct Metal Laser Sintering) and LENS (Laser Engineered Net Shaping).
Previously, it was mainly applied in the automotive industry, but now it is also used in electrical engineering, civil engineering, design, medicine and so on.
In electrical engineering, rapid prototyping is used due to the continuous reduction in the size of components, which are very complicated to manufacture.
Fig. 3 The principle of the method DMLS [12] The second of these methods is LENS (Laser Engineered Net Shaping), Fig. 4.
Online since: May 2011
Authors: Zhi Jie Zhang, Tao Li, Ping An Liu
Experimental Study on Desulfurized Gypsum Modified Magnesium Oxychloride Cement Zhi-jie Zhang, Tao Li, Ping-an Liu School of Materials Science & Engineering, South China University of Technology, Guangzhou, China 510640 Keywords: magnesium-oxy-chloride cement, desulfurization gypsum, modify, abrasive tools Abstract.
MOC has many good engineering and mechanical properties, but it has poor water resistance, which makes it be limited in engineering applications.
Figure3 Mechanics performance of gypsum adding Figure 4 Effect of gypsum adding of MOC abrasive tool The strength softening coefficient:MOC has many good engineering and mechanical properties, but it has poor water resistance, i.e., the strengths of hardened MOC pastes in water decreased sharply, which makes it be limited in engineering applications.
J Materials in civil engineering march 2008 [7] X, Liguang, Magnesium Oxychloride Cement and Products, Science Press, Beijing,1993(inchinese) [8] C.Haibin,T.Hua, Study for the status of municipal refuse disposal in China, Wuhan Urban Cons,Ins,14(3)(1997)40-44(in Chinese) [9] G..Z.Li.
Reactivity and Function of Magnesium Oxide in sorel Cement JOURNAL OF Materials in civil engineering march 2008
Online since: May 2011
Authors: Yuan Cao Guo, Shao Hua Guo
Propagation Characteristics of Ultrasonic Waves in Concrete Medium with Local Damage GuoYuancaoa, GuoShaohuab Institute of Mechanics and Sensing Technology, School of Civil and Architecture Engineering, Central South University, ChangSha 410075, Hunan Province, People’s Republic of China axct-mac@sohu.com, bgsh@mail.csu.edu.cn Key words: ultrasonic wave; elastic dynamic; damaged concrete medium; damage index; wave amplitude; time of wave propagation Abstract: The theory of ultrasonic wave propagation characteristic in damaged concrete media was studied in this paper.
The transformation mentioned above is provided for further study of inverse analysis and nondestructive test of the structure. 1.Introduction Recently the propagation principle of elastic waves in continuum medium has been widely researched and it is utilized in engineering more and more.
Concrete is the material which is utilized most widely in civil engineering containing the bridge,building,tunnel and mine etc.
(5) 2.3 The subarea modeling of damaged medium and the solution method of the wave equation Reinforced concrete structure are applied vastly in engineering and damage occur easily under the long-term load.
From the calculation result we know the wave amplitude and propagation time decrease firstly and increase graduately secondly with the damage location move to the right end. 3.4 The appliance in the structural damage detection engineering We can also use the curve above diagnosing the interior damage of the concrete comparatively accurately[9].