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Online since: October 2012
Authors: Chen Fang, Guo Chang Li, Hong Ping Yu
Finite Analysis on Performance of Joint between Gangue Concrete Filled Steel Tubular Column with through Rebar and Gangue Concrete Beam under the Monotonic Loading
Guochang Li1,a, Chen Fang2,b, Hongping Yu3,c
1School of civil engineering, Shenyang Jianzhu University, Shenyang, Liaoning, 110168, China
2 School of civil engineering, Shenyang Jianzhu University, Shenyang, Liaoning, 110168, China
3 School of civil engineering, Shenyang Jianzhu University, Shenyang, Liaoning, 110168, China
aliguochang0604@sina.com, bsos0806@163.com, c546828283@qq.com
Key words: gangue concrete filled steel tubular column, gangue concrete beam, finite element analysis, performance under the monotonic loading.
Therefore, the concrete-filled steel tubular column possesses high bearing capacity and good ductility so that the concrete-filled steel tubular structure is widely applied to all fields of the civil engineering [1].
Schneider: Journal of Structural Engineering ASCE/February. 2004:213-221
Therefore, the concrete-filled steel tubular column possesses high bearing capacity and good ductility so that the concrete-filled steel tubular structure is widely applied to all fields of the civil engineering [1].
Schneider: Journal of Structural Engineering ASCE/February. 2004:213-221
Online since: October 2014
Authors: S.V. Sementsov
Petersburg State University of Architecture and Civil Engineering,
Vtoraja Krasnoarmejskaja ul. 4, St.
The first step was introduction (since 1712) of the principle of regularity, by the joint efforts of Peter I and the Italian military engineer Domenico Trezzini.
Petersburg, Part 1, Historic development of quarters and their regulation, Bulletin of Civil Engineers, 2 (7) (2006), 15-20
Petersburg, Pt 2, Historic development of land sites (the system of land distribution and development of sites) and their regulation, Bulletin of Civil Engineers, 3 (7) (2006), 21-26
Petersburg on the basis of regularities of its three-century town-planning development, Bulletin of Civil Engineers, 2 (15) (2013), 190-211.
The first step was introduction (since 1712) of the principle of regularity, by the joint efforts of Peter I and the Italian military engineer Domenico Trezzini.
Petersburg, Part 1, Historic development of quarters and their regulation, Bulletin of Civil Engineers, 2 (7) (2006), 15-20
Petersburg, Pt 2, Historic development of land sites (the system of land distribution and development of sites) and their regulation, Bulletin of Civil Engineers, 3 (7) (2006), 21-26
Petersburg on the basis of regularities of its three-century town-planning development, Bulletin of Civil Engineers, 2 (15) (2013), 190-211.
Online since: January 2013
Authors: Zhi Fang, Xue Bing Zhang, Shou Chang Deng
Study on the standard deviation for the compressive strength of recycled concrete
Xuebing Zhang 1,2,a, Zhi Fang 1,b and Shouchang Deng3,c
1 College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
2 College of Civil Engineering & Mechanics, Xiangtan University, Xiangtan 411105, Hunan, China
3 Department of Architecture and Civil Engineering, Huizhou University, Huizhou 516007, Guangdong, China
azhangxb00@163.com, bfangzhi@hnu.cn, cdengshouchang@163.com
Keywords: recycled concrete, strength standard deviation, strength discreteness, statistical sample
Abstract.
But in practical engineering the recycled coarse aggregate origin can’t generally reach the complexity of the test, so that the test results tend to conservative.
Study on the Application of Recycled Concrete in the Ready Mixed Concrete [J].Quality of Civil Engineering and Construction, 2003, (5): 32-35
But in practical engineering the recycled coarse aggregate origin can’t generally reach the complexity of the test, so that the test results tend to conservative.
Study on the Application of Recycled Concrete in the Ready Mixed Concrete [J].Quality of Civil Engineering and Construction, 2003, (5): 32-35
Online since: May 2012
Authors: Xun Xu, Shi Zhong Qiang, Hua Wen Ye
The New Analytical Theory of Distortion of Thick-Walled
Concrete Box Girder Bridge
Xu Xun1, a, Ye Hua-wen2,b and Qiang Shi-zhong3,c
1,2,3School of Civil Engineering, Southwest Jiaotong University, P.O.BOX 559, Chendu, P.
Basic Assumption Taking trapezoidal box girder of uniform cross-section that is widely adopted in bridge engineering as research object, and cross-section size and distortion load as shown in Fig. 1 and Fig. 2.
Li H G: Refined Analysis of Curved Thin Walled Multi-cell Box Girders, Computer & Structures, Vol. 142(1):131-142. (1994) [6] Wang Ronghui, Zeng qingyuan: A Plate Beam Element Method of Spatial Computation for Thin Walled Box Girder, Journal of The China Railway Society, Vol.21(5): 94- 98. (1999) [7] Xie xu, Huang Jianyuan: Finite Element Metgod for Analysis of Curved Box Girder Bridge Structures, China Civil Engineering Journal, Vol.38(1): 75- 80 (2005) [8] Qian Yinquan,Ni Yuanzeng: Analysis Thin-Walled Thin Walled Box Girder Bridges with Great Initial Curvature, China Civil Engineering Journal, Vol.26(5): 22-30 (1993) [9] Chen Hengzhi, Xie Xu, Chen Haibin, Huang Jianyuan: An Analytical Method and Its Application for Large-section PC Box Girder Bridges, China Civil Engineering Journal, Vol.39(4): 27-31 (2006) [10] Xu Xun, Wei Xing, Liu Dejun, Qiang Shizhong: Analysis for Static and Dynamic Characteristics of Flat Curved Box Beams, Journal of Highhway and Transportation research and
Basic Assumption Taking trapezoidal box girder of uniform cross-section that is widely adopted in bridge engineering as research object, and cross-section size and distortion load as shown in Fig. 1 and Fig. 2.
Li H G: Refined Analysis of Curved Thin Walled Multi-cell Box Girders, Computer & Structures, Vol. 142(1):131-142. (1994) [6] Wang Ronghui, Zeng qingyuan: A Plate Beam Element Method of Spatial Computation for Thin Walled Box Girder, Journal of The China Railway Society, Vol.21(5): 94- 98. (1999) [7] Xie xu, Huang Jianyuan: Finite Element Metgod for Analysis of Curved Box Girder Bridge Structures, China Civil Engineering Journal, Vol.38(1): 75- 80 (2005) [8] Qian Yinquan,Ni Yuanzeng: Analysis Thin-Walled Thin Walled Box Girder Bridges with Great Initial Curvature, China Civil Engineering Journal, Vol.26(5): 22-30 (1993) [9] Chen Hengzhi, Xie Xu, Chen Haibin, Huang Jianyuan: An Analytical Method and Its Application for Large-section PC Box Girder Bridges, China Civil Engineering Journal, Vol.39(4): 27-31 (2006) [10] Xu Xun, Wei Xing, Liu Dejun, Qiang Shizhong: Analysis for Static and Dynamic Characteristics of Flat Curved Box Beams, Journal of Highhway and Transportation research and
Online since: March 2018
Authors: Andri Kusbiantoro, Mohd Mustafa Al Bakri Abdullah, Khairunisa Muthusamy, Nabilah Mamat, Norbaizurah Rahman
Roles of Calcium in Geopolymer Containing Paper Mill Sludge Ash
Norbaizurah Rahman1, Andri Kusbiantoro1*, Nabilah Mamat1,
Khairunisa Muthusamy2 and Mohd Mustafa Al Bakri Abdullah3
1 Faculty of Engineering Technology, Universiti Malaysia Pahang, Pahang, 26300, Malaysia
2 Faculty of Civil Eng. and Earth Resources, Universiti Malaysia Pahang, 26300, Malaysia
3 Faculty of Engineering Technology, Universiti Malaysia Perlis, 01000, Malaysia
*andri@ump.edu.my
Keywords: Geopolymer, Paper Mill Sludge Ash, Curing Temperature, Strength, Degree of Reaction.
Journal of Materials in Civil Engineering. 23 (2011), p. 264-270
Journal of Materials in Civil Engineering. 27 (2015)
International Journal of Civil & Enironmental Engineering. 11 (2013), p, 59-62
Journal of Materials in Civil Engineering. 23 (2011), p. 264-270
Journal of Materials in Civil Engineering. 27 (2015)
International Journal of Civil & Enironmental Engineering. 11 (2013), p, 59-62
Online since: January 2014
Authors: Wen Zhong Zhao, Jian Cheng Sun, Ya Jing Pang
FEM Analysis of Massive Concrete Pile Using of Cooling Pipe in Shahe Bridge
Jiancheng Sun1,2,a, Yajing Pang1,b, Wenzhong Zhao3
1College of Civil Engineering,Hebei University of Technology,Tianjin 300401,China;
2Civil Engineering Technology Research Center of Hebei Province,Tianjin 300401,China
3Highway Administration in Hebei Province,Shijiazhuang 050000,China
asunjiancheng2000@126.com,b656549869@qq.com
Keyword: Massive Concrete Pile,Temperature Field,Hydration Heat ,Cooling Pipe,Stress Field
Abstract.Based on finite element theory,Study on temperatrue field under the using of cooling pipe for massive concrete pile in shahe bridge by using MIDAS/CIVIL.Analysis of various factors effect to the temperature field, stress field and the temperature gradient of massive concrete pile,which included in inlet water temperature and the water flow, proposed the control indicators of cooling pipe design.
Method of "Considering pipe cooling effect equivalent heat conduction equation [4]" was widely used,but it is not properly reflect the temperature gradient and thermal stress closed to the cooling water pile.In this paper, based on massive concrete pile using of cooling pipe in Shahe bridge, for engineering modeling, study on temperature field, stress field and the temperature gradient closed to cooling water pipe.
Model and Material Parameters Shahe bridge is in the fourth section of xin-fen highway,which located in boundaries between Xingtai to Ji Jin.It across the engineering of North Water Transfer, the upper structure consists of two 5m×5m pier and a 6.9m×5m main pier, the substructure is made of 41.4m×12.9m×4 m massive concrete pile.Pouring disposable completed, Using of cooling pipe to reduce hydration heat.
Table.3 Water temperature indicators Inlet water temperature(°C) Max-temperature gradient(°C/m) Maximum stress (MPa) Tensile strength(MPa) Tensile stress ratio 20 60.3 1.53 2.26 1.48 30 48.4 1.40 2.48 1.77 40 35.5 1.26 2.68 2.13 50 22.6 1.10 2.85 2.59 Consider the error between numerical and engineering,combined with practical experience, defining allowable tensile stress ratio equal to 2 is suitable.Analysis of Table.3 can be obtained that inlet water temperature is 40°C,it is in line with postulate.Author proposal to improve construction methods, collecting the water outflow from cooling water pipe,when the water temperature achieve the required,then enter the cooling water pipe for recycling.Greatly reducing tension cracks caused by water-cooling measures,also to reduce the cost of engineering.
References [1] BofangZhu.The stress and temperature control of massive concrete[M].Beijing:Electric Power Press of China.1999,77-92(In Chinese) [2] Tiemeng Wang.Cracking control of engineering structures[M].Beijing:Building Industry Press of China.1997. 62-64,585-596(In Chinese) [3] Junxi Wang.Analytical Solution of Massive Concrete Temperature Field in Stratifying Construction of Large Bridge[J].Journal of Lanzhou Jiaotong University (Natural Sciences). 2006,25(1):20-23(In Chinese) [4] Bofang Zhu.Eguivalent equation of heat condution in mass concrete considering the effert of pipe cooling[J].Journal of Hydraulic Engineering.1991,(3):28-34(In Chinese)
Method of "Considering pipe cooling effect equivalent heat conduction equation [4]" was widely used,but it is not properly reflect the temperature gradient and thermal stress closed to the cooling water pile.In this paper, based on massive concrete pile using of cooling pipe in Shahe bridge, for engineering modeling, study on temperature field, stress field and the temperature gradient closed to cooling water pipe.
Model and Material Parameters Shahe bridge is in the fourth section of xin-fen highway,which located in boundaries between Xingtai to Ji Jin.It across the engineering of North Water Transfer, the upper structure consists of two 5m×5m pier and a 6.9m×5m main pier, the substructure is made of 41.4m×12.9m×4 m massive concrete pile.Pouring disposable completed, Using of cooling pipe to reduce hydration heat.
Table.3 Water temperature indicators Inlet water temperature(°C) Max-temperature gradient(°C/m) Maximum stress (MPa) Tensile strength(MPa) Tensile stress ratio 20 60.3 1.53 2.26 1.48 30 48.4 1.40 2.48 1.77 40 35.5 1.26 2.68 2.13 50 22.6 1.10 2.85 2.59 Consider the error between numerical and engineering,combined with practical experience, defining allowable tensile stress ratio equal to 2 is suitable.Analysis of Table.3 can be obtained that inlet water temperature is 40°C,it is in line with postulate.Author proposal to improve construction methods, collecting the water outflow from cooling water pipe,when the water temperature achieve the required,then enter the cooling water pipe for recycling.Greatly reducing tension cracks caused by water-cooling measures,also to reduce the cost of engineering.
References [1] BofangZhu.The stress and temperature control of massive concrete[M].Beijing:Electric Power Press of China.1999,77-92(In Chinese) [2] Tiemeng Wang.Cracking control of engineering structures[M].Beijing:Building Industry Press of China.1997. 62-64,585-596(In Chinese) [3] Junxi Wang.Analytical Solution of Massive Concrete Temperature Field in Stratifying Construction of Large Bridge[J].Journal of Lanzhou Jiaotong University (Natural Sciences). 2006,25(1):20-23(In Chinese) [4] Bofang Zhu.Eguivalent equation of heat condution in mass concrete considering the effert of pipe cooling[J].Journal of Hydraulic Engineering.1991,(3):28-34(In Chinese)
Online since: September 2007
Authors: Hyo Seon Park, H.M. Lee, I. Lee, D.S. Kang
Lee
2, d
1
Dept. of Architectural Engineering, Yonsei Univ., Seoul 120-749, Korea
2
Dept. of Geoinformatics, Univ. of Seoul, Seoul 130-743, Korea
a
dskang@yonsei.ac.kr, bidislee@yonsei.ac.kr, chspark@yonsei.ac.kr, diplee@uos.ac.kr
Keywords: Structural Health Monitoring, Vision Based Monitoring, Terrestrial Laser Scanning,
Finite Element Method
Abstract.
Recently, TLS is often used in various fields such as civil engineering or archeology for object modeling, volume survey of tunnel, geographic information system (GIS), and the purpose to conserve the detailed shapes of cultural heritages.
Lee: Computer-Aided Civil and Infrastructure Engineering, Vol. 22 (2007), pp. 19-30
Recently, TLS is often used in various fields such as civil engineering or archeology for object modeling, volume survey of tunnel, geographic information system (GIS), and the purpose to conserve the detailed shapes of cultural heritages.
Lee: Computer-Aided Civil and Infrastructure Engineering, Vol. 22 (2007), pp. 19-30
Online since: September 2011
Authors: Ji Shu Sun, Chun Feng Yang, Jian Cheng Sun, Tian Xiao
Study on the Axle Load Conversion Formula for Asphalt Pavement Based on Actually Measured Deflection Equivalent
Ji shu Sun1, 2, a, Tian Xiao3,b, Chun feng Yang1 and Jian cheng Sun1
1 School of Civil Engineering, Hebei University of Technology, No. 29 Guangrong Road, Hongqiao District, Tianjin, 300130, China
2 Hebei Research Center for Civil Engineering Technology, No. 5340 Xiping Road, Beichen District, Tianjin, 300401, China
3 Tianjin Municipal Engineering Design & Research Institute, No. 239 Yingkou Street, Hexi District, Tianjin, 300051, China
asunjishu76@126.com, bxiaotian95@126.com
Keywords: Road engineering, Axle load conversion, Deflection, Asphalt pavement, Axle load
Abstract.
Online since: December 2012
Authors: Rhys Pullin, Karen M. Holford, Norazura Muhamad Bunnori, Md Nor Noorsuhada, Shahiron Shahidan
M2,c, Muhamad Bunnori N. 3,d Md Nor N.4,e
1Faculty of Civil and Environmental Engineering, Universiti Tun Hussien Onn Malaysia, Parit Raja 86400, Batu Pahat, Johor, Malaysia.
2Cardiff School of Engineering, Cardiff University, Queen’s Buildings, The Parade, Newport Road,Cardiff, CF24 3AA, UK.
3School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia (USM),
14300 Nibong Tebal, Pulau Pinang, Malaysia.
4Faculty of Civil Engineering, Universiti Teknologi MARA (UITM),40450 Shah Alam, Selangor, Malaysia
ashahiron@uthm.edu.my, bpullinr@cardiff.ac.uk, cholford@cardiff.ac.uk, dcenorazura@eng.usm.my, eidanur211@yahoo.com
Keywords: Acoustic emission, Cracking, Concrete structure
Abstract.
AE has been greatly used in concrete engineering applications since 1970.
If successful this approach offers real opportunity for asset management and furthermore will provide bridge engineers with important information for assessing remaining life. .
The history and development of acoustic emission in concrete engineering.
"A Quantitative study of the realationship between concrete crack parameters and acoustic emission energy released during failure " Engineering Materials 245-246: pp 461-466
AE has been greatly used in concrete engineering applications since 1970.
If successful this approach offers real opportunity for asset management and furthermore will provide bridge engineers with important information for assessing remaining life. .
The history and development of acoustic emission in concrete engineering.
"A Quantitative study of the realationship between concrete crack parameters and acoustic emission energy released during failure " Engineering Materials 245-246: pp 461-466
Online since: September 2011
Authors: Hua Meng, Shun Cai Li
The results, which were obtained by scholars in variable-system studies, focus on civil engineering field [3-6].
Chinese Quarterly of Mechanics, 25(2), 163-167(2004) (in Chinese) [5] Cao Z.: Construction mechanics and time-varying mechanics in civil engineering.
Journal of China Civil Engineering, 34(3), 41-46(2001) (in Chinese) [6] Zeng Q., Guo X.: Vibration analyses of time-varying system of train-bridge and its application.
Journal of Hunan Institute of Engineering, 16(2), 24-27(2006) (in Chinese)
Journal of Vibration Engineering, 8(4):293-301(1995) (in Chinese) [11] Zhang Q: Cutting force modeling and analysis in axial contour CNC turning.
Chinese Quarterly of Mechanics, 25(2), 163-167(2004) (in Chinese) [5] Cao Z.: Construction mechanics and time-varying mechanics in civil engineering.
Journal of China Civil Engineering, 34(3), 41-46(2001) (in Chinese) [6] Zeng Q., Guo X.: Vibration analyses of time-varying system of train-bridge and its application.
Journal of Hunan Institute of Engineering, 16(2), 24-27(2006) (in Chinese)
Journal of Vibration Engineering, 8(4):293-301(1995) (in Chinese) [11] Zhang Q: Cutting force modeling and analysis in axial contour CNC turning.