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Online since: August 2007
Authors: Kyong Ho Chang, H.C. Park, Chin Hyung Lee, Gab Chul Jang, E.H. Choi
Choi2,e
1
Department of Civil & Environmental Engineering, Chung-Ang University,
221, Huksuk-dong, Dongjak-ku, Seoul 156-756, Korea
2
Department of Civil Engineering, Chung-Ang University,
221, Huksuk-dong, Dongjak-ku, Seoul 156-756, Korea
3
Conventional Rail Engineering Corps, Korea Railroad Research Institute,
374-1 Woulam-Dong, Uiwang-shi, Kyunggi-do 437-050, Korea
4
Institute of Technology and Science, Chung-Ang University,
221, Huksuk-dong, Dongjak-ku, Seoul 156-756, Korea
a
Corresponding author: changkor@cau.ac.kr, bstruc21@hanmail.net, cifinder@hanmail.net,
d
celeste_worm@hotmail.com, eeuihong78@nate.com
Keywords: Fatigue strength, replacement repair welded joints, damaged steel girder bridge,
rehabilitation
Abstract.
Chung-Ang University of Korea, Dept. of Civil Eng. (2003) [2] S.H.
Chung-Ang University of Korea, Dept. of Civil Eng. (2003) [2] S.H.
Online since: August 2013
Authors: Xiao Tang, Jian Lv, Ying Zhang, Xiao Hong Ma, Shuai Zhen
Contrast Analysis of Solar Energy Water Heating System in the South and North of China
Jian Lv, Xiao Tang*, Ying Zhang, Xiao hong Ma, and Shuai Zhen
Department of Municipal Engineering, The College of Architecture and Civil Engineering, Beijing University of Technology, Ping le yuan No.100, Chao yang District, Beijing, China
*Tel: 15801077731 E-mail address: xiaoxiao89160@sina.com
Keywords: solar energy water heating system; pump operating conditions; power consumption; overheating protection
Abstract.
[2] National Technical Measures for Design of Civil Construction, Water Supply and Drainage (2003)
Water & Wastewater Engineering, Vol.37(2011), p. 62-67
[5] GB50364-2005, Technical code for solar water heating system of civil buildings.
[2] National Technical Measures for Design of Civil Construction, Water Supply and Drainage (2003)
Water & Wastewater Engineering, Vol.37(2011), p. 62-67
[5] GB50364-2005, Technical code for solar water heating system of civil buildings.
Online since: May 2012
Authors: Yu Zhang, Yu Zhe Hao, Jian Bo Bai
Research on Energy-saving Rebuilding Technologies for Existing Residential Buildings in South of Jiangsu Province1
Jianbo Baia, Yu Zhang, Yuzhe Hao
1 College of Mechanical and Electrical Engineering, Hohai University, Changzhou, 213022, China
abaijb@hhuc.edu.cn
Keywords: Existing Residential Buildings, Energy-saving measures, Reconstruction
Abstract.
Ministry of Public Security clear supervisions in Notice on further clarifying the relevant requirements on fire management of thermal insulation materials for civil that the combustion performance of external insulation material for civil must be class A.
For Energy-saving materials of the roof, the notice the Ministry of Public Security clear supervisions in Notice on further clarifying the relevant requirements on fire management of thermal insulation materials for civil that the combustion performance of external insulation material for civil must be class A.
References [1] National Institute of Standards of the People's Republic of China, Civil thermal design specification (GB 50176-93), 1993 (in Chinese) [2] Jiagen Liu, Yueli Liu, Yajun Zu Tangshan existing residential building envelope energy saving research [J] Building Science, 2006,22 (4A) :86-90(in Chinese) [3] Fenghao Wang, Dongyang Wang, Xilian Luo.
Ministry of Public Security clear supervisions in Notice on further clarifying the relevant requirements on fire management of thermal insulation materials for civil that the combustion performance of external insulation material for civil must be class A.
For Energy-saving materials of the roof, the notice the Ministry of Public Security clear supervisions in Notice on further clarifying the relevant requirements on fire management of thermal insulation materials for civil that the combustion performance of external insulation material for civil must be class A.
References [1] National Institute of Standards of the People's Republic of China, Civil thermal design specification (GB 50176-93), 1993 (in Chinese) [2] Jiagen Liu, Yueli Liu, Yajun Zu Tangshan existing residential building envelope energy saving research [J] Building Science, 2006,22 (4A) :86-90(in Chinese) [3] Fenghao Wang, Dongyang Wang, Xilian Luo.
Online since: February 2020
Authors: Marek Jašek, Filip Khestl, Barbora Hrubá, Jiří Teslík, Petr Kurečka
The trend of modern civil engineering involves buildings and structures with precisely defined properties and parameters.
Besides the classic ones, there are also new building materials and nanomaterials used in civil engineering; complex composite structures exist and are employed.
Fig. 3: Prototype of the cooling box used at the Faculty of Civil Engineering of VŠB-TUO The Cooling Box at the Faculty of Civil Engineering of VŠB-TUO, which was used for the measurement, is divided into two parts.
Civil engineering produces a large amount of various waste raw materials.
Civil engineering, however, is one of the few industries in which one can find many possibilities of recycling building waste as well as waste originating in other industries.
Besides the classic ones, there are also new building materials and nanomaterials used in civil engineering; complex composite structures exist and are employed.
Fig. 3: Prototype of the cooling box used at the Faculty of Civil Engineering of VŠB-TUO The Cooling Box at the Faculty of Civil Engineering of VŠB-TUO, which was used for the measurement, is divided into two parts.
Civil engineering produces a large amount of various waste raw materials.
Civil engineering, however, is one of the few industries in which one can find many possibilities of recycling building waste as well as waste originating in other industries.
Online since: October 2011
Authors: Quan Sheng Sun, Tong Wu
Research of Elastic Camber for Prefabricated PC Girder
Quansheng Sun1,a, Tong Wu2,b
1School of Civil Engineering,Northeast Forestry University(NEFU),China
2School of Civil Engineering,Northeast Forestry University(NEFU),China
ahrbsqs@126.com, bldwutong@126.com
Keywords: prefabricated PC girder;elastic camber;Ansys simulation.
Abstract.In the process of prefabricating some genenal box girder,T girder,I girder,cored slab,a tension of prestress will give rise to the camber which is the important evaluation criterion of bridge engineering quality[1].This paper take XiHuXiuZi bridge and FuXingPao bridge as background to research elastic camber of prefabricated PC girder.Then the model of prefabricated PC girder is established through finite element analysis software Ansys.The model data is compared with the collected data after finishing the model.The factor which can impact elastic camber is researched deeply.Lastly,the relations between the elastic camber of prefabricated PC girder and each influential factors is determined through changing model parameters.
[3] Ganapati.Sahoo.Ampang-Kuala Lumpur Elevated Highway,Malaysia.Structural Engineering Internation,2000(2):3~5
[5] Pieter-Claude Aitcin,Mohamed Lachemi.The Serbrooke Reactive Powder Concrete Footbri- dge.Structural Engineering International,1998(2):26~32.
Abstract.In the process of prefabricating some genenal box girder,T girder,I girder,cored slab,a tension of prestress will give rise to the camber which is the important evaluation criterion of bridge engineering quality[1].This paper take XiHuXiuZi bridge and FuXingPao bridge as background to research elastic camber of prefabricated PC girder.Then the model of prefabricated PC girder is established through finite element analysis software Ansys.The model data is compared with the collected data after finishing the model.The factor which can impact elastic camber is researched deeply.Lastly,the relations between the elastic camber of prefabricated PC girder and each influential factors is determined through changing model parameters.
[3] Ganapati.Sahoo.Ampang-Kuala Lumpur Elevated Highway,Malaysia.Structural Engineering Internation,2000(2):3~5
[5] Pieter-Claude Aitcin,Mohamed Lachemi.The Serbrooke Reactive Powder Concrete Footbri- dge.Structural Engineering International,1998(2):26~32.
Online since: October 2012
Authors: Shi Jun Liu, Wen Feng Duan, Hong Chun Wang
Interval Finite Element Analysis and Sensitivity Study
of Engineering Structure
Shijun Liu1,a Wenfeng Duan2,b Hongchun Wang1,c
1 College of architecture and engineer, Anhui Polytechnic University, Anhui Wuhu, China, 241000
2 College of civil engineering, Hunan University, Hunan Changsha, China, 410082
aJunshiliu2005@163.com, bduanwenfeng@163.com, cwanghongchun@163.com
Key words: uncertainty, interval finite element method, interval sensitivity, truss structure
Abstract: The material parameters and the load are considered interval uncertainty and regarded as interval variables in this paper.
The interval finite element analysis model is established for engineering structures.
Engineer example .
Communications in Numerical methods in Engineering , 2006, 12( 1) : 1- 11
Journal of Engineer ing Mechanics, 2009, 121( 11) : 1149- 1157
The interval finite element analysis model is established for engineering structures.
Engineer example .
Communications in Numerical methods in Engineering , 2006, 12( 1) : 1- 11
Journal of Engineer ing Mechanics, 2009, 121( 11) : 1149- 1157
Online since: July 2014
Authors: Ming Li, De Heng Kong, Yun Kai Ruan, Zhi Gang Zhang, Wen Fei Mao
Development of the monitoring guidance system for slope engineering
Deheng Kong1, a, Yunkai Ruan1, b, Zhigang Zhang2, c, Wenfei Mao1, d, Ming Li1, e
1 College of Construction Engineering, Jilin University, 938 Xinminzhu Street, Chaoyang District, Changchun, China,130026
2School of Civil Engineering, Tongji University, 1239 SiPing road, Yangpu District, Shanghai City, China, 200092
akongdeheng@163.com, bruanyunkai@163.com, cjiath0815@qq.com, dmao361560@163.com, e1101173473@qq.com
Keywords: Landslides, Slope Monitoring, Software Design, Visual Basic.
The slope monitoring is an important part of the slope engineering.
And the system provides the monitoring program output and print to help engineers.
(2) The establishment of this system has the Open permissions, so engineers can create accounts; add new information of engineering tests.
(3) The engineering application shows that the system has a beneficial effect on guiding engineering monitoring project, determining the monitoring scheme.
The slope monitoring is an important part of the slope engineering.
And the system provides the monitoring program output and print to help engineers.
(2) The establishment of this system has the Open permissions, so engineers can create accounts; add new information of engineering tests.
(3) The engineering application shows that the system has a beneficial effect on guiding engineering monitoring project, determining the monitoring scheme.
Online since: December 2013
Authors: Ke Wei Ding, Dong Chen, Wu Sun
Research of the Thermal Performance of a New Type of Rock Wool Color Steel Sandwich
Kewei Ding1,a, Wu Sun1,b , Dong Chen1,c
1School of Civil Engineering.Anhui Jianzhu University.Hefei. 230601.PR China
adingkw@aiai.edu.cn, bsunwu2252@qq.com, cchenchenchu@163.com
Keywords: a new type of rock wool steel sandwich; ANSYS; cold bridge condensation
Abstract.
Fig.3 The Model Fig.4 Temperature field Fig.5 Y direction Fig.6 Overall Load application. 1) Applying the temperature boundary condition on the inside According to the provision of Thermal design code for civil building, Anhui area belongs to the hot summer and cold winter area, when heating in this district, indoor and outdoor average temperature were taken 18˚C and -7˚C.[2] 2) Applying the convective boundary condition on the outside According to the provision of Practical design manual heating and air conditioning, the coefficient of indoor and outdoor convective heat transfer were taken 8.7W/(m2·K) and 23.3W/(m2·K).[3] Post-treatment. 1) Run the following steps, Main Menu>General Postprocess>Plot results>Nodal Solu, select Nodal Temperature in DOF Solution, then we can get the temperature field distribution shown in Fig 4. 2) Run the following steps, Main Menu>General Postprocess>Plot results>Nodal Solu,select the Y-Component of thermal
According to article 4.3.1 of Thermal design code for civil building, the temperature of inner surface of cold bridge site of building envelope is not less than dew point temperature of indoor air.
[2] GB50176-93.Thermal Design Code for Civil Building [S].China Planning Press(1993).
[6] Guanghui Xia, Jianhua Cui,Shan Xia, Wanyun Yin.Technology and Development of New Type Sandwich Thermal Insulation Composite Wall[J].Engineering and Construction.(2012).
Fig.3 The Model Fig.4 Temperature field Fig.5 Y direction Fig.6 Overall Load application. 1) Applying the temperature boundary condition on the inside According to the provision of Thermal design code for civil building, Anhui area belongs to the hot summer and cold winter area, when heating in this district, indoor and outdoor average temperature were taken 18˚C and -7˚C.[2] 2) Applying the convective boundary condition on the outside According to the provision of Practical design manual heating and air conditioning, the coefficient of indoor and outdoor convective heat transfer were taken 8.7W/(m2·K) and 23.3W/(m2·K).[3] Post-treatment. 1) Run the following steps, Main Menu>General Postprocess>Plot results>Nodal Solu, select Nodal Temperature in DOF Solution, then we can get the temperature field distribution shown in Fig 4. 2) Run the following steps, Main Menu>General Postprocess>Plot results>Nodal Solu,select the Y-Component of thermal
According to article 4.3.1 of Thermal design code for civil building, the temperature of inner surface of cold bridge site of building envelope is not less than dew point temperature of indoor air.
[2] GB50176-93.Thermal Design Code for Civil Building [S].China Planning Press(1993).
[6] Guanghui Xia, Jianhua Cui,Shan Xia, Wanyun Yin.Technology and Development of New Type Sandwich Thermal Insulation Composite Wall[J].Engineering and Construction.(2012).
Online since: February 2012
Authors: Lin Zhang, Jin Yu Zhang, Li Jie Ma
The Research on Concrete mix design of Tailings sand and gravel
Lijie MA1,2, a, Lin ZHANG1,2, b, Jinyu ZHANG1,2, c
1 School of Civil Engineering, Hebei United University, No.46 Xinhua West Road,Tangshan 063009, China
2 Earthquake engineering research center of Hebei Province, No.46 Xinhua West Road, Tangshan 063009, China
amalijie424@163.com, bzhanglin9820@yahoo.com.cn,ctszjy@126.com,
Keywords: iron ore tailings; concrete; mix design; Water secretion
Abstract.
The technology of concrete of using tailings sand and gravel instead of natural sand and gravel belongs to Inorganic nonmetallic materials science, and the direction of the popularization and application is the field of civil construction .Using the iron tailings in the north of Tangshan as research sample,Besides it also been researched that mix design of concrete with iron ore tail and tail ore instead of natural sand, As a result the corresponding design principles have put forward.
Test methods of aggregate for Highway Engineering" (JTJ058-2000).
The technology of concrete of using tailings sand and gravel instead of natural sand and gravel belongs to Inorganic nonmetallic materials science, and the direction of the popularization and application is the field of civil construction .Using the iron tailings in the north of Tangshan as research sample,Besides it also been researched that mix design of concrete with iron ore tail and tail ore instead of natural sand, As a result the corresponding design principles have put forward.
Test methods of aggregate for Highway Engineering" (JTJ058-2000).