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Online since: August 2013
Authors: Hai Bo Liu, Yu Li Liu, Li Hua Zhang
Comparative analysis of finite element method and analytical method on the truss
LIU Haibo1, a, Liu Yuli2 and ZHANG Lihua1, b
1 Department of Civil Engineering,North China Institute Of Science And Technology, The East of Beijing—Yanjiao 101601,China,2Department of Basic Curriculum,The East of Beijing—Yanjiao 101601,China
1aliuhaibo@ncist.edu.cn, 2liuyuli@ncist.edu.cn,1bzhanglihua@ ncist.edu.cn
Keywords: truss, finite element, analytical method, axial force
Abstract.
The analytical and finite element calculation are compared, the results in table 1 Table 1 The comparison of analytical and finite element value member AF AC FE FC CE CD DB BE DE analytical value(N) -2828 4000 -2000 2000 2828 2000 2000 -2828 0 finite element value(N) -2828 4000 2070 1724 3241 1724 1724 -2828 0 deviation(%) 0 0 3.5 13.8 14.6 13.8 13.8 0 0 Through the table 1,We can easily find some axial force analytical value and the actual value is exactly the same, error is 0%; and some of the axial forces of the theoretical value and actual value error reaches 14.6%, the error appears to be larger, but in the actual project is acceptable, and can fully meet the design requirements of precision engineering.
The analytical and finite element calculation are compared, the results in table 1 Table 1 The comparison of analytical and finite element value member AF AC FE FC CE CD DB BE DE analytical value(N) -2828 4000 -2000 2000 2828 2000 2000 -2828 0 finite element value(N) -2828 4000 2070 1724 3241 1724 1724 -2828 0 deviation(%) 0 0 3.5 13.8 14.6 13.8 13.8 0 0 Through the table 1,We can easily find some axial force analytical value and the actual value is exactly the same, error is 0%; and some of the axial forces of the theoretical value and actual value error reaches 14.6%, the error appears to be larger, but in the actual project is acceptable, and can fully meet the design requirements of precision engineering.
Online since: December 2013
Authors: Lei Wang, Hai Bo Han, Zhuang Li, Xing Hang Long
Study on the Static and Dynamic Load Test of skew Bridge
HaiBo Han1, a, Lei Wang1,b, Zhuang Li1,c , XingHang Long1,d
1 College of Construction Engineering, Jilin University, Changchun, China
ahanhai1900@126.com, b412026822@qq.com, c286806028@qq.com, d 420327293@qq.com
Keywords: skew bridge, carrying capacity, static and dynamic test, deflection, modal, vertical base frequency
Abstract.
Engineering Situation As shown in Fig.1 it is a 210m prestressed concrete box-girder bridge.
As shown in Fig.3 the finite element model was created by Midas Civil.
Engineering Situation As shown in Fig.1 it is a 210m prestressed concrete box-girder bridge.
As shown in Fig.3 the finite element model was created by Midas Civil.
Online since: October 2013
Authors: Zhen Li Mi, Xiao Lei Zhang, Di Tang, Yi De Wang, Hui Li
Microstructure and mechanical properties of Fe-Cr-C eutectic composites.Materials Science and Engineering:A 2003;347:214-222
[5] J.H.Kang,P.E.J.Rivear.
Archives of Civil and Mechanical Engineering 2007;7(2):21-28 [7] J.O.Andersson,T.Helander,L.Hoglund,etc.
Archives of Civil and Mechanical Engineering 2007;7(2):21-28 [7] J.O.Andersson,T.Helander,L.Hoglund,etc.
Online since: February 2020
Authors: Mario Trotea, Dumitru Neagoe, Augustin Constantinescu, Robert Emil Simniceanu
[4] Simniceanu L, Bogdan M, Oțăt V, Trotea M, Nonlinear differential system applied of a mechanical plan model of the automotives used for the nonlinear stability analysis, Proc. of the 10th International Automotive Congress “Automotive and Environment” CAR 2017 (Pitesti) Volume 252 (IOP Publishing, IOP Conference Series: Materials Science and Engineering) 012023, 2017
Trans Thec Publications pp. 54-59 [8] Simniceanu L, Otat V and Trotea M 2015 Recent Advances in Mechanics, Mechatronics and Civil, Chemical and Industrial Engineering (Determination to a plan model of the automotives moving used for the stability analysis ) ed INASE pp 68 – 71
Trans Thec Publications pp. 54-59 [8] Simniceanu L, Otat V and Trotea M 2015 Recent Advances in Mechanics, Mechatronics and Civil, Chemical and Industrial Engineering (Determination to a plan model of the automotives moving used for the stability analysis ) ed INASE pp 68 – 71
Online since: September 2007
Authors: Yi Wang Bao, De Shen Zhao, Wei Hong Li, Xiong Chen
The Influence of Stress Ratio on the Fracture Behavior of Brittle
Materials
Weihong LI1, a, Xiong CHEN
1, b
, Deshen ZHAO1, c and Yiwang BAO
2, d
1
Civil and Architecture Engineering College, Dalian University, Dalian 116622, PRC
2
China Testing and Certification Center for Building Materials, China Building Materials Academy,
Beijing 100024, PRC
a
liweihong714@163.com, blmcx2006@163.com, czhaodeshen@263.com,
d
ywbao@csgc.org.cn
Keywords: Brittle materials; Stress ratio; Numerical simulation; Strain criterion of fracture.
References [1] Anderson T L: Fracture Mechanics (CRC Press, USA 1995) [2] Broek D: Elementary Engineering Fracture Mechanics (Kluwer Academic Publisher, USA 1986) [3] Griffith A A: Philos.
References [1] Anderson T L: Fracture Mechanics (CRC Press, USA 1995) [2] Broek D: Elementary Engineering Fracture Mechanics (Kluwer Academic Publisher, USA 1986) [3] Griffith A A: Philos.
Online since: May 2011
Authors: Bin Yan, Li Tong Sun, Yao Xu
Vertical Dynamic Impedance of Fracture Pile
Bin Yana, Litong Sunb and Yao Xuc
School of Civil Engineering & Architecture, University of Jinan, Jinan, shangdong, P.R.
References [1] M.Novak, Aboul–F.Ella: Journal of Engineering Mechanics Division Vol. 104(1978), p643 [2] E.A.Maragakis, B.M.Douglas: Earthquake Eng Struct Dyn Vol.23(1994), p.1115 [3] G.Mylonakis, A.Nikolaou: Earthquake Eng Struct Dyn Vol.26(1997), p.337 [4] G.Gazetas, N.Makris: Earthquake Eng Struct Dyn Vol.20(1991), p.115 [5] Ettouney, M.A.Brennan and F.Forte: J.Geot.
References [1] M.Novak, Aboul–F.Ella: Journal of Engineering Mechanics Division Vol. 104(1978), p643 [2] E.A.Maragakis, B.M.Douglas: Earthquake Eng Struct Dyn Vol.23(1994), p.1115 [3] G.Mylonakis, A.Nikolaou: Earthquake Eng Struct Dyn Vol.26(1997), p.337 [4] G.Gazetas, N.Makris: Earthquake Eng Struct Dyn Vol.20(1991), p.115 [5] Ettouney, M.A.Brennan and F.Forte: J.Geot.
Online since: January 2013
Authors: Wan Zhang
The static impact analysis of a blast furnace equipment load
on the structure in Taiyuan
Wan Zhang
College of Architecture and Civil Engineering, Taiyuan University of Technology
Taiyuan 030024, CHINA
sxycrczw@163.com
Keywords: industrial building equivalent load blast furnace equipment
Abstract: There are a variety of forms of industrial construction equipment load .The structural design engineers replace equipment load by equivalent load to analyze structure while it is impossible to reflect the combination of equipment and structure or synthetically dynamic characteristics exactly.
From the domestic and international situation, structural design engineers are unfamiliar to equipment process, as well as chemical design engineers to structural design.
Due to production requirements, the equipment layout is often not very reasonable, design engineers can get load only through the equipment construction condition information.
In practical engineering, we should pay attention to strengthen the equipment and each floor of the connection, the device is arranged on the structure of the intermediate cross site, the layout is reasonable, reduce the structural torsion.
In comparison to three kinds of analysis results, the result of the simulation of equipment loaded into each layer on the loading ways is worst, and is the most close to the actual. 4 Conclusion The equipment is very complex in industrial building, equipment have great influence on the resistance to horizontal seismic force of structure, period and stiffness, it is suggested that equipment model and structure model should be assembled and analyzed integrally, which requires a structural engineer to understand the characteristics of industrial building equipment and chemical construction condition, obtain detailed loading information and apply load on structure accurately.
From the domestic and international situation, structural design engineers are unfamiliar to equipment process, as well as chemical design engineers to structural design.
Due to production requirements, the equipment layout is often not very reasonable, design engineers can get load only through the equipment construction condition information.
In practical engineering, we should pay attention to strengthen the equipment and each floor of the connection, the device is arranged on the structure of the intermediate cross site, the layout is reasonable, reduce the structural torsion.
In comparison to three kinds of analysis results, the result of the simulation of equipment loaded into each layer on the loading ways is worst, and is the most close to the actual. 4 Conclusion The equipment is very complex in industrial building, equipment have great influence on the resistance to horizontal seismic force of structure, period and stiffness, it is suggested that equipment model and structure model should be assembled and analyzed integrally, which requires a structural engineer to understand the characteristics of industrial building equipment and chemical construction condition, obtain detailed loading information and apply load on structure accurately.
Online since: March 2013
Authors: Lei Chen
It also introduced its two usages as carbon fiber composite cable and carbon fiber cloth in bridge engineering in detail.
1 Introduction
New kinds of compound materials are getting a lot of use in the construction industry along with the continuous success of their research and development and continuous mature production technology.
Although its application scope is affected by price at present, it will be more widely used with the innovation of technology. 3 The application of CFRP in bridge engineering So far, the strength requirement is not high in the ordinary civil engineering and the traditional materials are enough to use.
But in bridge engineering, it is necessary to constantly look for new type of bigger strength and better quality materials to replace traditional materials and solve the bottleneck of engineering construction.
So far, the cables used in bridge engineering are still generally made by high-tensile steel, but CFCC is used in it more and more.
Although its application scope is affected by price at present, it will be more widely used with the innovation of technology. 3 The application of CFRP in bridge engineering So far, the strength requirement is not high in the ordinary civil engineering and the traditional materials are enough to use.
But in bridge engineering, it is necessary to constantly look for new type of bigger strength and better quality materials to replace traditional materials and solve the bottleneck of engineering construction.
So far, the cables used in bridge engineering are still generally made by high-tensile steel, but CFCC is used in it more and more.
Online since: July 2011
Authors: Zi Qi Li, Yan Yan Fan
Study on Seismic Response Reduction of a Long-Span Cable-Stayed Bridge by Adding Viscous Dampers at the Different Positions
Li ziqi 1,2,a , Fan yanyan1,2, b
1School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou,China
2Key laboratory of road & bridge and underground engineering of Gansu province, Lanzhou Jiaotong University, Lanzhou, 730070, China
alzqfyy@163.com, bfyyanl,@163.com
Keyword: Long-span bridges, Lifeline engineering, Earthquake, Vibration-isolation seismic, Viscous dampers
Abstract: Bridge is an important part of transport system, especially for the long-span bridges of important route.
Engineering example In this paper, a cable-stayed bridge is taken as the research object and the beam element, shell element, truss unit of ANSYS are used to establish the three-dimensional finite element model for its structure features.
“Earthquake Engineering” [M].Beijing, Seismology Press, 1988
[5] Wilson, J.and Gravelle, W.[1991] “Modelling of a cable-stayed bridge for dynamic analysis,” Earthquake Engineering and Structural Dynamics 20, 707-721
Engineering example In this paper, a cable-stayed bridge is taken as the research object and the beam element, shell element, truss unit of ANSYS are used to establish the three-dimensional finite element model for its structure features.
“Earthquake Engineering” [M].Beijing, Seismology Press, 1988
[5] Wilson, J.and Gravelle, W.[1991] “Modelling of a cable-stayed bridge for dynamic analysis,” Earthquake Engineering and Structural Dynamics 20, 707-721
Online since: April 2013
Authors: Xiao Wen Yao, Jian Qun Jiang, Yi Ting Lu
Water supply pipeline system is a key issue in urban lifeline engineering, and the seismic assessment for the system damage is of significant importance.
Introduction As one of the critical civil infrastructures, water supply system is an essential element for the function of social and economic activities of the city.
Huo, Damage investigation and analysis of engineering structures in the Wenchuan earthquake, Journal of Building Structures.
Datta, “Seismic response of buried pipelines: a state-of-the-art review,” Nuclear engineering and design, vol. 192, pp. 271-284, 1999
[14] Ministry of Construction of the People’s Republic of China, Code for seismic design of outdoor water supply, sewerage, gas and heating engineering, 2003.
Introduction As one of the critical civil infrastructures, water supply system is an essential element for the function of social and economic activities of the city.
Huo, Damage investigation and analysis of engineering structures in the Wenchuan earthquake, Journal of Building Structures.
Datta, “Seismic response of buried pipelines: a state-of-the-art review,” Nuclear engineering and design, vol. 192, pp. 271-284, 1999
[14] Ministry of Construction of the People’s Republic of China, Code for seismic design of outdoor water supply, sewerage, gas and heating engineering, 2003.