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Online since: January 2014
Authors: Xiao Dong Ni, Ke Chen
Study on the conversion of GOCAD models to FLAC3D models
Xiao-Dong Ni1, 2, a, Ke Chen1, 2, b
1College of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, China
2Institute of Tunnel, Underground and Metro Engineering, Hohai University, Nanjing, 210098, China
alulingnxd@126.com, bchenke8872@126.com
Keywords: GOCAD; FLAC3D; 3D modeling; data conversion
Abstract: In the analysis of the GOCAD SGrid model and the FLAC3D hexahedral mesh model, a method of converting the former to the latter is proposed, and the data conversion program is prepared based on VB.NET.
Experienced 20 years of development, GOCAD has become internationally recognized as a mainstream modeling software widely used in geological engineering, geophysical exploration, mining development, water conservancy and other fields.
FLAC3D is a three-dimensional numerical analysis software developed by ITASCA consulting LTD, it can be used to build high-level three-dimensional model about rocks, soil and supporting structure for the numerical analysis of complex geotechnical engineering and design.
Although in solving geotechnical engineering problems FLAC3D has many advantages, but its pre-processing function is relatively weak, particularly in building complex geological models.
Experienced 20 years of development, GOCAD has become internationally recognized as a mainstream modeling software widely used in geological engineering, geophysical exploration, mining development, water conservancy and other fields.
FLAC3D is a three-dimensional numerical analysis software developed by ITASCA consulting LTD, it can be used to build high-level three-dimensional model about rocks, soil and supporting structure for the numerical analysis of complex geotechnical engineering and design.
Although in solving geotechnical engineering problems FLAC3D has many advantages, but its pre-processing function is relatively weak, particularly in building complex geological models.
Online since: January 2014
Authors: Wen Li Wang, Liang Wang, Yi Fei Wang, Wei Lian Qu, Bai Feng Ji
Welding Residual Stress Numerical Simulation of Guyed Mast Earplate Welded Joint
Yifei Wang 1, a, Weilian Qu 1, Wenli Wang 2, Liang Wang 1 and Baifeng Ji 1
1 Hubei Key Laboratory of Roadway Bridge and Structure Engineering, Wuhan University of Technology, Wuhan 430070, China
2 Hubei University of Technology Engineering and Technology College, Wuhan 430068, China
aYifei_Wang@whut.edu.cn
Keywords: Guyed mast earplate welded joint, Welding residual stress, Welding temperature field, Numerical simulation
Abstract.
However, numerical simulation technology of the welding residual stress used in field of civil engineering is not very common.
Chinese Mechanical Engineering, 2001, 12(2): 183-18
International Journal for Numerical Methods in Engineering, 1999, 44(9):1301-1316
However, numerical simulation technology of the welding residual stress used in field of civil engineering is not very common.
Chinese Mechanical Engineering, 2001, 12(2): 183-18
International Journal for Numerical Methods in Engineering, 1999, 44(9):1301-1316
Online since: September 2013
Authors: Wen Tao Ma, Jian Qiang Wang, Min Jing Ma
Static And Dynamic Analysis For Tower In A High-Rise Steel
Reinforced Concrete Composite Structure
Jianqiang Wang1,a,Wentao Ma1,b,Minjing Ma1,c
1College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China
awjq07001620@126.com,b mwt278@126.com, c542112712 @qq.com
Keywords: high-rise, steel reinforced concrete composite structure, imitation antiquc tower,
Abstract: Steel reinforced concrete composite structure which apply in the high-rise buildings, not only save steel, but also have excellent properties in fire prevention, anti-corrosion, and seismic performance, and improve the speed of construction, economic efficiency.This thesis based on the analyse of a steel reinforced concrete composite structure tower and the domestic and foreign experts’ study use Finite Element Analysis software SAP2000 analyze the dynamic Performance of the structure to draw the inherent vibration period and frequency of the structure.
The engineering general situation The project will be built on the island of an eco-park, which belong to the pagoda-like Tang dynasty, to promote Buddhist culture.
The engineering have flat terrain, treeless and surrounding heritage buildings.
Fig.1 Elevation layout of Antique tower Fig.2 Floor layout of Antique tower Design parameters and basis of the engineering Antique tower’s main structure consists of a type of steel reinforced concrete frame, reinforced concrete shear wall core wall and support system.
Journal of engineering mechanics, 2001 (sup) : P182-190
The engineering general situation The project will be built on the island of an eco-park, which belong to the pagoda-like Tang dynasty, to promote Buddhist culture.
The engineering have flat terrain, treeless and surrounding heritage buildings.
Fig.1 Elevation layout of Antique tower Fig.2 Floor layout of Antique tower Design parameters and basis of the engineering Antique tower’s main structure consists of a type of steel reinforced concrete frame, reinforced concrete shear wall core wall and support system.
Journal of engineering mechanics, 2001 (sup) : P182-190
Online since: December 2012
Authors: Qiang Cui, Xian Long Lu, Wen Zhi Yang, Sheng Hui Liu
Transmission and Transformation Engineering Mechanics Department of China Electric Power Research Institute, China, 102401
2.
In the engineering design, the control of pile top horizontal displacement is generally used to check the horizontal bearing capacity of the foundation soil.
In recent years, massive research works have been conducted on the bearing characteristics of pile foundation under horizontal loads by domestic and foreign scholars. [1~5] Test Overview Engineering geological conditions Test sites were chosen along the 750kV Lanzhou - Tianshui – Baoji transmission line, as shown in figure1.
Journal of Nanjing Architectural and Civil Engineering Institute. 1998, 4:7-14
Investigation report of engineering geological condition of gravel ground soil in field test site.2009 (in Chinese)) [7] The Professional Standards Compilation Group of People’ s Republic of China.
In the engineering design, the control of pile top horizontal displacement is generally used to check the horizontal bearing capacity of the foundation soil.
In recent years, massive research works have been conducted on the bearing characteristics of pile foundation under horizontal loads by domestic and foreign scholars. [1~5] Test Overview Engineering geological conditions Test sites were chosen along the 750kV Lanzhou - Tianshui – Baoji transmission line, as shown in figure1.
Journal of Nanjing Architectural and Civil Engineering Institute. 1998, 4:7-14
Investigation report of engineering geological condition of gravel ground soil in field test site.2009 (in Chinese)) [7] The Professional Standards Compilation Group of People’ s Republic of China.
Online since: March 2015
Authors: Hong Bo Zhai, Jian Jun Su, Xiao Min Yan, Wei Liu
Dynamic Response of the Pipe Conveying Fluid with the Pressure Pulsation
Zhai Hongbo1,a, Su Jianjun1,b, Yan Xiaomin1,c, Liu Wei2,d
1Xi’an Modern Chemistry Research Institute, Xi’an 710065, PR China;
2School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710129, PR China)
azhaihb@mail.nwpu.edu.cn, bsjj3582@sina.com, cxmyan99@163.com, dliuwei@nwpu.edu.cn
Keywords: Pipe conveying fluid, Transfer matrix, Pressure pulsation, Dynamic response.
Introduction As a common structural element, the pipe conveying fluid plays a very important role in the engineering fields, particularly in the nuclear industry, aeronautic and space field, petrochemical engineering, oil transportation, municipal water supply and so on [1].
Hence, investigating the dynamic response of the pipe conveying fluid with the pressure pulsation has important engineering significance.
Hereinto, there is a definite prescript (10%) for the one with 20.684MPa in engineering, but no public literatures for the ones with 27.579MPa and 55.158MPa.
Introduction As a common structural element, the pipe conveying fluid plays a very important role in the engineering fields, particularly in the nuclear industry, aeronautic and space field, petrochemical engineering, oil transportation, municipal water supply and so on [1].
Hence, investigating the dynamic response of the pipe conveying fluid with the pressure pulsation has important engineering significance.
Hereinto, there is a definite prescript (10%) for the one with 20.684MPa in engineering, but no public literatures for the ones with 27.579MPa and 55.158MPa.
Online since: July 2019
Authors: Anuchit Uchaipichat
Correlation between Unconfined Compressive Strength and
Penetration Index Obtained from DCP Tests for Cemented Lateritic Soils
Anuchit Uchaipichat1,a
1Department of Civil Engineering, Vongchavalitkul University
Muang District, Nakhon Ratchasima, 30000, Thailand
aanuchit_uch@vu.ac.th
Keywords: Cemented soils, Unconfined compressive strength, DCPT, Lateritic soils
Abstract.
Introduction For several decades, the soil improvement technique by adding cement has been used in geotechnical engineering works.
The R-squared value obtained from fitting curve process was 0.817, which is substantial acceptable in engineering problem.
Lee, Assessment of Geotechnical Characteristics on Cement-Admixed Composite, Proceedings of the Twenty-third International Offshore and Polar Engineering Anchorage, Alaska, USA, (2013), pp. 663-668
Khamehchiyan, Application of the Dynamic Cone Penetrometer (DCP) for determination of the engineering parameters of sandy soils, Eng.
Introduction For several decades, the soil improvement technique by adding cement has been used in geotechnical engineering works.
The R-squared value obtained from fitting curve process was 0.817, which is substantial acceptable in engineering problem.
Lee, Assessment of Geotechnical Characteristics on Cement-Admixed Composite, Proceedings of the Twenty-third International Offshore and Polar Engineering Anchorage, Alaska, USA, (2013), pp. 663-668
Khamehchiyan, Application of the Dynamic Cone Penetrometer (DCP) for determination of the engineering parameters of sandy soils, Eng.
Online since: June 2014
Authors: Yan Zhen Yu, Yu Zhong Guo, Ming Li
Preparation and Coagulation Performance of Polymeric Aluminum Zinc Ferric (PAZF) from Galvanized Aluminum Slag
Ming Li1,a, Yanzhen Yu2,b and Yuzhong Guo3,c
1,2,3School of Civil Engineering and Architecture, University of Jinan 250022 China
aliming8806@126.com, bcea_yuyz@ujn.edu.cn
* Corresponding author: Yanzhen Yu
Keywords: Polymeric aluminum zinc ferric (PAZF); Galvanized aluminum slag; Coagulation performance.
Chemical engineering Journal, 2010, 163:48-54
Chemical Engineering Journal, 2009, 149(1): 1-10
Colloids and Surfaces A: physicochemical and engineering aspects, 2009, 334(1): 147-154
Chemical Engineering Journal, 2011, 178: 50-59
Chemical engineering Journal, 2010, 163:48-54
Chemical Engineering Journal, 2009, 149(1): 1-10
Colloids and Surfaces A: physicochemical and engineering aspects, 2009, 334(1): 147-154
Chemical Engineering Journal, 2011, 178: 50-59
Online since: August 2013
Authors: Yue Chen, Tao Cheng, Zhen Hua Wu, Li Ping Qin, Hui Li, Zhen Xian Yu
., Ltd.
2Civil Construction Engineering Department, Hubei Polytechnic University, Huangshi, China
3Chemistry and Materials Engineering Department, Hubei Polytechnic University, Huangshi, China
aqinlp_hbpu@163.com
Keywords: steel pipe scaffolding; collapse accident; high formwork support system
Abstract.
Introduction In recent years, rapid urbanization in China, multifunction, large space, large-span building more and more, with the frequent use of high formwork support system in civil engineering, its security has also become a key and difficult points of safety in production.High formwork support system collapse occurred, not only cause casualties and economic losses and negative social effects, but also to the survival and development of enterprises have negative and, therefore, how to effectively prevent the occurrence of high formwork supporting system collapse, has been management concerns of construction hot spot.The author hopes that through the analysis the reason of high formwork support system collapse accident,and investigate explore prevention strategies to prevent and eradicate the template support collapsing accident occurred.[1] Project Overview A university library has a total area of more than 3000 ㎡, 11 floors on the ground, Lecture Hall, the second phase of the project
After formwork supporting system installation is complete, organized by the department of project acceptance; Qualified acceptance, project technical lead and project Chief supervision engineer in construction unit signs, before entering follow-up process of construction. 4) Enhancing safety awareness, elimination of the disregard for safety violations, decision-making and organization of work; Eliminate the bad habit of "habitual security risk".
Journal of Construction Engineering and Management. 2000, 126(1): 52-60
Introduction In recent years, rapid urbanization in China, multifunction, large space, large-span building more and more, with the frequent use of high formwork support system in civil engineering, its security has also become a key and difficult points of safety in production.High formwork support system collapse occurred, not only cause casualties and economic losses and negative social effects, but also to the survival and development of enterprises have negative and, therefore, how to effectively prevent the occurrence of high formwork supporting system collapse, has been management concerns of construction hot spot.The author hopes that through the analysis the reason of high formwork support system collapse accident,and investigate explore prevention strategies to prevent and eradicate the template support collapsing accident occurred.[1] Project Overview A university library has a total area of more than 3000 ㎡, 11 floors on the ground, Lecture Hall, the second phase of the project
After formwork supporting system installation is complete, organized by the department of project acceptance; Qualified acceptance, project technical lead and project Chief supervision engineer in construction unit signs, before entering follow-up process of construction. 4) Enhancing safety awareness, elimination of the disregard for safety violations, decision-making and organization of work; Eliminate the bad habit of "habitual security risk".
Journal of Construction Engineering and Management. 2000, 126(1): 52-60
Online since: September 2013
Authors: Na Wang, Er Ming Ouyang
The application of A/O Treating Mixing Pharmaceutical Wastewater
Er-ming Ouyang1,a, Na Wang2
1School of Civil Engineering and Architecture, Nanchang University, Nanchang, China
2School of Environment and Chemical Engineering , Nanchang University , Nanchang, China
ayoumer@sina.com
Keywords:mixing pharmaceutical wastewater; A/O; start-up
Abstract:A/O was applied to treat the mixing pharmaceutical wastewater.
This paper focuses on the start-up and operating results of A/O in this engineering.
Washington DC, 1998 [2] LI Fei, LU Jia, Elementary Introduction on the Techniques of Aeration Bio-filter Tank[J], Municipal Engineering Technology, 2006, 24(5): 323-326
Water & Wastewater Engineering, 2007, 33(1): 44~46 抱歉,系统响应超时,请稍后再试 · 支持中英、中日在线互译 · 支持网页翻译,在输入框输入网页地址即可 · 提供一键清空、复制功能、支持双语对照查看,使您体验更加流畅
This paper focuses on the start-up and operating results of A/O in this engineering.
Washington DC, 1998 [2] LI Fei, LU Jia, Elementary Introduction on the Techniques of Aeration Bio-filter Tank[J], Municipal Engineering Technology, 2006, 24(5): 323-326
Water & Wastewater Engineering, 2007, 33(1): 44~46 抱歉,系统响应超时,请稍后再试 · 支持中英、中日在线互译 · 支持网页翻译,在输入框输入网页地址即可 · 提供一键清空、复制功能、支持双语对照查看,使您体验更加流畅
Online since: September 2014
Authors: Yi Tang Zhou, Luo Ke Li, Xiu Ying Fan, Ting Zhang
Research of Polypropylene concrete’s pavement performance
Zhang Ting1,a, Zhou Yitang1,b, Li Luoke1,c, Fan Xiuying1,d
1Department of Civil Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China
azhangting52683328@126.com, bytzhou@yahoo.cn,cllk217@126.com,d316642430@qq.com
Keywords:early cracks of concrete; polypropylene; crack test; effect of resistcracking
Abstract: Emergence of commodity concrete and pumping concrete is a major development of modern concrete technology,it has high efficiency, high homogeneity and good environmental effects, etc.But, useof modern high performance concrete make the difficulty of controlling the early cracks increased, considering this problem, use of polypropylene fibers to testconcrete shrinkage cracks, come to regularity of polypropylene fiber affect concrete shrinkage cracks early,in order to serve the synthetic fibers used in concrete better.
Conclusions Obviously, Polypropylene fibre has greater advantages in crack resistance on concrete,with the large number of applications of high performance concrete, early shrinkage cracks is a very serious problem, and Polypropylene fibre reduced early cracks on concrete engineering greatly via it’s high toughness and corrosion resistance characteristics[10].
The test only selected filamentous fibers to operate the test, if we according to the law of the internal stress of the concrete to produce the meshfibre or spatial fibre body, so, I believe that a better solution willbe occurred to solvethe problem of early concrete shrinkage cracks, and we can use the characteristics of low cost, simple production process of Polypropylene fiber to applied it to engineering practice widely.
Cracks Control of Engineering Structures[M].
Journal of Materials Science and Engineering, 2003, 21(5): 727-730.
Conclusions Obviously, Polypropylene fibre has greater advantages in crack resistance on concrete,with the large number of applications of high performance concrete, early shrinkage cracks is a very serious problem, and Polypropylene fibre reduced early cracks on concrete engineering greatly via it’s high toughness and corrosion resistance characteristics[10].
The test only selected filamentous fibers to operate the test, if we according to the law of the internal stress of the concrete to produce the meshfibre or spatial fibre body, so, I believe that a better solution willbe occurred to solvethe problem of early concrete shrinkage cracks, and we can use the characteristics of low cost, simple production process of Polypropylene fiber to applied it to engineering practice widely.
Cracks Control of Engineering Structures[M].
Journal of Materials Science and Engineering, 2003, 21(5): 727-730.