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Online since: May 2011
Authors: Chun Long Nie, He Lin Fu
Analysis on Impacts of Construction Technology
on Bearing Capacity of Grouting Piles
Chunlong Nie1,2,a and Helin Fu1,b
1 School of Civil Engineering and Architecture, Central South University, Changsha, 410025, China
2 School of City Construction, University of South China, Hengyang, Hunan, 421001,China
a chlnie@yahoo.com.cn, b fuhelin100@yahoo.com.cn
Key words: Construction technology, grouting pile, bearing capacity, interface of pile-soil, lateral resistance, bottom resistance.
[5] Houmei Zhang, Xiuguo Wu and Weihua Zeng: Chinese Journal of Rock Mechanics and Engineering Vol. s2 (2005), p. 5762-5766,in Chinese
[7] Hongxin Wang and Deming Fu:China Civil Engineering Journal Vol. 9(2006), p. 86-90,in Chinese
Chinese Journal of Rock Mechanics and Engineering, 2004, 23(1): 153-158
[5] Houmei Zhang, Xiuguo Wu and Weihua Zeng: Chinese Journal of Rock Mechanics and Engineering Vol. s2 (2005), p. 5762-5766,in Chinese
[7] Hongxin Wang and Deming Fu:China Civil Engineering Journal Vol. 9(2006), p. 86-90,in Chinese
Chinese Journal of Rock Mechanics and Engineering, 2004, 23(1): 153-158
Online since: July 2013
Authors: Hao Zhang
Study on PPP-BOTDA technology for concrete crack monitoring
Hao Zhang
School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, P.R.
Introduction As a novel and advanced sensing technique, fiber optic sensors (FOS) had been extensively applied for structural health monitoring purpose due to their distributed sensing, One of the most useful applicable approaches for distributed optical fiber sensing technology method is the Brillouin Optical Time Domain Reflectometry (BOTDR), the spatial resolution of BOTDR is only 1 m, and the maximum measurement error is only ± 40με, which can not meet engineering structure monitoring.
For PM optical fiber PM fiber is another fiber sensors used widely in engineering.
Consequently, If the gauge length is longer than spatial resolution, the PF installed FOS can be used effectively to monitor and measure crack width of civil engineering structures.
Introduction As a novel and advanced sensing technique, fiber optic sensors (FOS) had been extensively applied for structural health monitoring purpose due to their distributed sensing, One of the most useful applicable approaches for distributed optical fiber sensing technology method is the Brillouin Optical Time Domain Reflectometry (BOTDR), the spatial resolution of BOTDR is only 1 m, and the maximum measurement error is only ± 40με, which can not meet engineering structure monitoring.
For PM optical fiber PM fiber is another fiber sensors used widely in engineering.
Consequently, If the gauge length is longer than spatial resolution, the PF installed FOS can be used effectively to monitor and measure crack width of civil engineering structures.
Online since: January 2016
Authors: Ivana Oleksakova, Marek Magát
Influence of the Wind in Passages
Ivana Oleksakova1,a* , Marek Magat2,c
1 Department of Building Structures, Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Radlinského 11, 813 68 Bratislava, SLOVAKIA,
1 Department of Building Structures, Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Radlinského 11, 813 68 Bratislava, SLOVAKIA,
aoleksakova.ivana@me.com, bmarek.magat.icloud.com
Keywords: CFD, wind influence, passage, pedestrian comfort
Abstract
This paper is concerned with wind influence on pedestrians in different buildings underpasses where with using of Computational Fluid Dynamic (CFD) is made study about proportion of buildings and underpasses affecting velocity and so pedestrian comfort in passage.
Euler equations for 3D motion of non-viscous compressible fluid [m/s2] (4) force acting to 1 kg ofthe moving particles p pressure Similarly, the Navier-Stokes equations (for incompressible fluids) can be expressed in a single vector equation (5) is dynamic viscosity Pedestrian comfort Several criteria have been developed in the wind engineering for evaluating only the wind-induced mechanical forces on the human body as result for pedestrian comfort and safety.
[2] Hemida Hassan: Turbulent flow and CFD: Part 1, COST Action TU1304 WINERCOST, International Training School Malta, 26th May – 31st May 2015: Advances in Wind Energy Technology, 172-190 [3] Stathopoulos Ted: Pedestrian level winds and outdoor human comfort, Journal of Wind Engineering and Industrial Aerodynamics 94 (2006) 769-780, Elsevier, available online 21.8.2006 [4] Janssen W.D., Blocken B., van Hooff T. : Pedestrian wind comfort around buildings: comparison of wind comfort criteria based on whole-flow field data for a complex case study, Building and Environment, October 25th , 2012, 27 pages [5] NEN 2006.
Euler equations for 3D motion of non-viscous compressible fluid [m/s2] (4) force acting to 1 kg ofthe moving particles p pressure Similarly, the Navier-Stokes equations (for incompressible fluids) can be expressed in a single vector equation (5) is dynamic viscosity Pedestrian comfort Several criteria have been developed in the wind engineering for evaluating only the wind-induced mechanical forces on the human body as result for pedestrian comfort and safety.
[2] Hemida Hassan: Turbulent flow and CFD: Part 1, COST Action TU1304 WINERCOST, International Training School Malta, 26th May – 31st May 2015: Advances in Wind Energy Technology, 172-190 [3] Stathopoulos Ted: Pedestrian level winds and outdoor human comfort, Journal of Wind Engineering and Industrial Aerodynamics 94 (2006) 769-780, Elsevier, available online 21.8.2006 [4] Janssen W.D., Blocken B., van Hooff T. : Pedestrian wind comfort around buildings: comparison of wind comfort criteria based on whole-flow field data for a complex case study, Building and Environment, October 25th , 2012, 27 pages [5] NEN 2006.
Online since: July 2014
Authors: Li Qin, Tian Yuan Xu
Numerical analysis of the iced transmission line galloping
QIN LI1,a,XU TIANYUAN2,b *
1School of Civil Engineering and Architecture,Northeast Dianli University,Jilin 132012,P.R.China,
2Department of Civil Engineering and Architecture,Northeast Dianli University,Jilin 132012,P.R.China
b *email:798871751@qq.com
Key words: Iced transmission line,galloping,Runge-Kutta,Critical wind velocity
Abstract:By used the assumed mode method to simulate the iced transmission line galloping,with three generalized coordinates to represent the iced transmission line galloping.
[9] P.Yu,Y.M.Desai,A.H.Shah et al,3-degree-of-freedom model for galloping:1.formulation[J].Journal of Engineering Mechanics-ASCE,1993,119(12):2404-2425
[11] P.Yu,Y.M.Desai,A.H.Shah et al,3-degree-of-freedom model for galloping:2.solutions[J].Journal of Engineering Mechanics-ASCE,1993,119(12):2426-2448
[9] P.Yu,Y.M.Desai,A.H.Shah et al,3-degree-of-freedom model for galloping:1.formulation[J].Journal of Engineering Mechanics-ASCE,1993,119(12):2404-2425
[11] P.Yu,Y.M.Desai,A.H.Shah et al,3-degree-of-freedom model for galloping:2.solutions[J].Journal of Engineering Mechanics-ASCE,1993,119(12):2426-2448
Online since: May 2011
Authors: Hong Hu Wei, Yan Bao
Introduction
Earthwork is one of important factors to civil engineering in construction cost(the earthwork cost may be up to 35% in road projection) and in decision of the input of labour force, machines and tools.
Therefore,a minimum of earthwork is one of key indicators for optimizing engineering design,and the mark of minimum earthwork is the balance of excavating and filling.On the other hand, engneering construction disputes happen occasionally due to the doubt of the earthwork accuracy computed,that leads directly to whether the construction project is finished on schedule.
Journal of DonghuaUniversity of Technology(Natural science edition), Vol.28(2009), No.1: 59-64 [5] Zhao Zhiqiang:Comparision and Analysis of Erathwork Calculation Methods,West Exploration engineering, Vol.21(2009)(z1): 167-168 [6] Wen Kongyue, Gao Guitian, Wei Honghu: Civil Engineering Survey(Second edition).Publishing of Beijing University of Technology, Jan.,2009
Therefore,a minimum of earthwork is one of key indicators for optimizing engineering design,and the mark of minimum earthwork is the balance of excavating and filling.On the other hand, engneering construction disputes happen occasionally due to the doubt of the earthwork accuracy computed,that leads directly to whether the construction project is finished on schedule.
Journal of DonghuaUniversity of Technology(Natural science edition), Vol.28(2009), No.1: 59-64 [5] Zhao Zhiqiang:Comparision and Analysis of Erathwork Calculation Methods,West Exploration engineering, Vol.21(2009)(z1): 167-168 [6] Wen Kongyue, Gao Guitian, Wei Honghu: Civil Engineering Survey(Second edition).Publishing of Beijing University of Technology, Jan.,2009
Online since: May 2011
Authors: Jia Wei Yao, Li Kun Qin, Yu Pu Song, Ling Xia Gao
Experimental Study on Mechanical Properties of Concrete under Triaxial Compression
Jiawei Yao1,a, Yupu Song2,b,Likun Qin1,c and Lingxia Gao1,d
1 Department of Civil Engineering, Dalian Nationalities University, 116600, China
2 State Key Laboratory of Coastal Offshore Engineering, Dalian University of Technology, Dalian 116024, China
3School of Civil and Architecture Engineering, Dalian Nationalities University, Dalian, 116600, China
a yao. jw@sohu.com, bsongyupu@163.com, c qinlk98@163.com
d gaolingxia2006@126.com
Keywords: triaxial compression; concrete; mechanical properties; experimental study
Abstract.
Introduction Most of concrete structures, especially some important ones, such as high pressure vessels of nuclear reaction pile, dams, offshore engineering structures and so on, are under multi-axial stress state.
Introduction Most of concrete structures, especially some important ones, such as high pressure vessels of nuclear reaction pile, dams, offshore engineering structures and so on, are under multi-axial stress state.
Online since: September 2013
Authors: Shuai Zhang, Lei Chen
Size-dependent piezoelectric coefficient d33 of nanoparticles
Shuai Zhang1, Lei Chen 2,a
1 Department of Materials Science and Engineering, Jilin Architectural and Civil Engineering Institute, Changchun 130025,China
2 Department of Municipal and environmental Engineering, Jilin Architectural and Civil Engineering Institute, Changchun 130025,China
achenlei_wy@sina.com
Keywords: Ferroelectrics; Piezoelectric materials; Size-dependent
Abstract.
Online since: December 2014
Authors: Feng Hai Ma, Zhi Yu Zhou, Zhi Bin Wang
Seismic Analyses of 3D Fengman Concrete Gravity Dam
Zhibin Wang 1,a , Fenghai Ma 2, b Zhiyu Zhou3,c
1 College of Civil and Architectural Engineering, Dalian University, Dalian, 116622, China
2 College of Civil and Architectural Engineering, Dalian University, Dalian, 116622, China
3 Research Center for Numerical Tests on Material Failure, Dalian University, Dalian, 116622, China aiiibin@126.com, bxkb@vip.163.com, c zzylz1990@126.com
Keywords: Seismic response, Gravity Dam, 3D dynamic FEM, Numerical simulation.
Some of the numerical results applied in the paper were obtained in the Geotechnical and Structural Engineering Institute.
World Information On Earthquake Engineering. 2001,17(3):91-97
Some of the numerical results applied in the paper were obtained in the Geotechnical and Structural Engineering Institute.
World Information On Earthquake Engineering. 2001,17(3):91-97
Online since: July 2014
Authors: Yang Wen, Lin Lin Qu, Bao Feng Zhang
Mechanical Behavior Experimental Study on Lattice Wind Turbine Tower KT-type Joints of Concrete-filled Steel Tubular
Yang Wen1,a, Linlin Qu1,b , Baofeng Zhang2,c
1The College of Civil Engineering, Inner Mongolia University of Science and Technology,
7 Arden Avenue, Baotou, China 014010
2Infrastructure Agency, Ministry of Foreign Affairs Service Center,
57 Ganmian Alley, Beijing, China 100005
awenyangalbert@163.com, bqusay-89@hotmail.com, cferdinand.zhang@gmail.com
Keywords: CFST, lattice wind turbine tower, joints, failure mode, failure characteristic
Abstract.
References [1] Kang-Su Lee and Hyung-Joon Bang: International Journal of Precision Engineering and Manufacturing.
[3] Qian X, Dodds Robert H and Choo Y S: Engineering Structures.
[5] Baochun Chen and Wenjin Huang: China Civil Engineering Journal.
References [1] Kang-Su Lee and Hyung-Joon Bang: International Journal of Precision Engineering and Manufacturing.
[3] Qian X, Dodds Robert H and Choo Y S: Engineering Structures.
[5] Baochun Chen and Wenjin Huang: China Civil Engineering Journal.
Online since: December 2010
Authors: Lin Zhao, Xiang Rong Chen, Xiao Song Lu
Research on Application of BRBs in Steel Frame Structures
Xiangrong Chen1,a, Lin Zhao1,b and Xiaosong Lu 2,c
1School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shan xi, 710055,China
2School of Civil Engineering, Xi’an Technological University, Xi’an, Shan xi, 710032,China
acxr90@126.com, bzhaolin6466@163.com, chxsjylxs@126.com
Keywords: Rigidity Ratio; Time-History Analysis; Buckling-Restrained Braces (Brbs); Story Drift Ratio.
He: Structural Engineers.Vol.23 (2007,In Chinese) p.8-11
Choi: Engineering Structures.Vol.26 (2004), p.693-706.
He: Structural Engineers.Vol.23 (2007,In Chinese) p.8-11
Choi: Engineering Structures.Vol.26 (2004), p.693-706.