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Online since: January 2013
Authors: Zhi Yuan Rui, Fu Qiang Wang, Dong Ping Zhao, Chun Li Lei
The material of the column is HT300 with elastic modulus 130Gpa, poisson's ratio 0.27 and the density 7.35g/cm3.The column is 2021.2 Kg weight totally.
Acknowledgement This work was financially supported by the Major Special Science and Technology Proiect of China (2010ZX04001—032).
[3] Jiang Liu.Chuanjun Tang.Dandan Zhang:Journal of Machine Design Vol. 27 (2010), p. 63, in Chinese
Jiang Man, et. al: Journal of North University of China Vol. 27 (2006), p. 485, in Chinese
[5] Zhiquan Guo.Yanshen Xu.Xueling Zhang, et. al: Journal of Mechanical Strength, Vol. 28(2006), p. 287, in Chinese.
Acknowledgement This work was financially supported by the Major Special Science and Technology Proiect of China (2010ZX04001—032).
[3] Jiang Liu.Chuanjun Tang.Dandan Zhang:Journal of Machine Design Vol. 27 (2010), p. 63, in Chinese
Jiang Man, et. al: Journal of North University of China Vol. 27 (2006), p. 485, in Chinese
[5] Zhiquan Guo.Yanshen Xu.Xueling Zhang, et. al: Journal of Mechanical Strength, Vol. 28(2006), p. 287, in Chinese.
Online since: July 2014
Authors: Tao Li
(2)
Where is the vertical stiffness of the bearing; is the modified elastic modulus; is the vertical elastic constant of the rubber surface, ; is the Young’s modulus of rubber material; is a modified coefficient which is related to the hardness of rubber; is the first shape coefficient for the bearing; is the second shape coefficient for the bearing; is the volume elastic modulus; is the effective sectional area.
Acknowledgement The support from the National Natural Science Foundation of China (Grant No. 91315301) is gratefully acknowledged.
Feng, Vibration control of super tall buildings subjected to wind loads, International Journal of Nonlinear Mechanics, 32 (4) (1997) 657-668
Wang and J.S Jiang, The controlling mechanism and the controlling effectiveness of passive mega-sub-controlled frame subjected to random wind loads, Journal of Sound and Vibration, 283 (3~5) (2005) 543-560
Chen, The probability density evolution method for dynamic response analysis of non-linear stochastic structures, International Journal for Numerical Methods in Engineering, 65 (2006) 882-903
Acknowledgement The support from the National Natural Science Foundation of China (Grant No. 91315301) is gratefully acknowledged.
Feng, Vibration control of super tall buildings subjected to wind loads, International Journal of Nonlinear Mechanics, 32 (4) (1997) 657-668
Wang and J.S Jiang, The controlling mechanism and the controlling effectiveness of passive mega-sub-controlled frame subjected to random wind loads, Journal of Sound and Vibration, 283 (3~5) (2005) 543-560
Chen, The probability density evolution method for dynamic response analysis of non-linear stochastic structures, International Journal for Numerical Methods in Engineering, 65 (2006) 882-903
Online since: September 2013
Authors: Ji Jun Zhou, Yu Fei Zhao, Wen Qiang Chen, Zhi Xin Jia, Xing Chao Lin
(3)
(4)
The distribution of axial force along the bolt, relationship between axial load and axial displacement on elastic deformation stage, and relationship between transversal load and transversal displacement were deduced respectively [4,5]:
(5)
(6)
(7)
Where, N0 is the axial force of bolt at the intersection of the bolt with the joint; , , ks is shear modulus of the grout, Eb is the elastic modulus of the bolt material, D is the diameter of the bolt, k is load factor, ; pu is the maximum bearing pressure of grout, pu=kuso=nsc, n is load factor, n≥2, us0 is the maximum transversal displacement of bolt when the grout in joint is crushed failure; lf is the length of crushing failure.
International Journal of Rock Mechanics and Mining Sciences, Vol. 36(1999), p. 1013–1029
Chinese Journal of Geotechnical Engineering, Vol. 24(2002), p. 188–192.
Chinese Journal of Rock Mechanics and Engineering, Vol. 26(2007), p. 692–698.
International Journal of Rock Mechanics and Mining Sciences, Vol. 36(1999), p. 1013–1029
Chinese Journal of Geotechnical Engineering, Vol. 24(2002), p. 188–192.
Chinese Journal of Rock Mechanics and Engineering, Vol. 26(2007), p. 692–698.
Online since: October 2013
Authors: Ming Hui Liu, Ai Guo Yin
Experimental study for the steel box girder of a bridge across the sea of longitudinal stiffening truss standard section model according to 1:5 scale, model had used common Q235 steel and carried out the research of material testing and test scheme.
Wang, et al, Journal of Fuzhou University (Natural Science), Vol. 30 2 (2002) 127-152
Yin, et al, Journal of Experimental Mechanics, 5 (2008) 377-386
Li, Journal of Sound and Vibration, 261 (2003) 443-464.
Wang, et al, Journal of Fuzhou University (Natural Science), Vol. 30 2 (2002) 127-152
Yin, et al, Journal of Experimental Mechanics, 5 (2008) 377-386
Li, Journal of Sound and Vibration, 261 (2003) 443-464.
Online since: December 2012
Authors: Yan Yan Li, Yan Ping Zhang, Yan Feng Chen
Fig. 1 Dimensions of beams
Fig. 2 Loading method
Table 1 Material and reinforcement of beams
Test phenomenon
The working conditions of beams before diagonal cracks appeared.
Acknowledgements This work was financially supported by the Hebei Natural Science Foundation (E2011202013).
[5] Bernold L E, Chang P.Potential gains througth welded wire fabric reinforcement [J].Journal of Construction Engineering and Management, 1992, 118(2):244-257
[6] Lee S L, Mansur M A, Tan K H,et al.Crack control in beams using deformed wire fabric[J].Journal of Structural Engineering,1989,10(115):2645-2660
Journal of Harbin Institute of Technology, 2009, 41(4):144-147.
Acknowledgements This work was financially supported by the Hebei Natural Science Foundation (E2011202013).
[5] Bernold L E, Chang P.Potential gains througth welded wire fabric reinforcement [J].Journal of Construction Engineering and Management, 1992, 118(2):244-257
[6] Lee S L, Mansur M A, Tan K H,et al.Crack control in beams using deformed wire fabric[J].Journal of Structural Engineering,1989,10(115):2645-2660
Journal of Harbin Institute of Technology, 2009, 41(4):144-147.
Online since: May 2011
Authors: Qing Fa Chen, Yun Xiang Liu
Table 1 Working conditions of cavity group structures
Working conditon
Layout types
Ⅰ
Ⅱ
Ⅲ
Ⅳ
Ⅴ
Ⅵ
Ⅶ
Ⅷ
Ⅸ
Ⅹ
Ⅺ
Ⅻ
Linear type
Non-linear type
Obtuse triangle layout
Right and acute triangle layout
Table 2 The physical and mechanical parameters of rock mass
materials
Compressive
strength
/[MPa]
Tensile
strength
/[MPa]
Elastic
modulus
/[MPa]
Poission'
s ratio
Cohesive
strength
/[MPa]
Internal
Friction
angel /[º]
Bulk
density
/[t/m3]
Ore body
16.8
4.7
7500
0.26
3.8
37
2.785
Structure effect analysis of the linear cavity group structural catastrophe process.
[2]Feng-qiang GONG, Xi-bing LI, Long-jun DONG, etal: Chinese Journal of Rock Mechanics and Engineering,Vol. 27 (2) (2008), p. 323 [3]Sheng-xie XIAO.Catastrophe chain-styled theory and application[M].Beijing:SciencePress,2006
[4]Ping-xie HE, Gao FENG: International journal of rock mechanics and mining sciences, Vol. 37(3)(2000), p. 477 [5]K.B.Broberg: Engineering Fracture Mechanics, Vol.16(4) (1982), p. 497 [6] Chun-an TANG, Shu-hong WANG, Yu-fang FU.
Beijing: Science Press, 2003
[2]Feng-qiang GONG, Xi-bing LI, Long-jun DONG, etal: Chinese Journal of Rock Mechanics and Engineering,Vol. 27 (2) (2008), p. 323 [3]Sheng-xie XIAO.Catastrophe chain-styled theory and application[M].Beijing:SciencePress,2006
[4]Ping-xie HE, Gao FENG: International journal of rock mechanics and mining sciences, Vol. 37(3)(2000), p. 477 [5]K.B.Broberg: Engineering Fracture Mechanics, Vol.16(4) (1982), p. 497 [6] Chun-an TANG, Shu-hong WANG, Yu-fang FU.
Beijing: Science Press, 2003
Online since: September 2014
Authors: Feng Yao, Rui Lian Zhang
In order to reduce the emission of pollutants, the government and the public sectors have to take actions of investing the necessary funds, materials and workers and implement the effective policies of environmental protection.
Quarterly Journal of Economics, 1995, 5:147 -162
Journal of Yunnan Normal University (Social Science Edition), 2007, 39(3)
Chongqing Environmental Sciences, 2003, 25(3).
Quarterly Journal of Economics, 1995, 5:147 -162
Journal of Yunnan Normal University (Social Science Edition), 2007, 39(3)
Chongqing Environmental Sciences, 2003, 25(3).
Online since: June 2012
Authors: Liang Bai, Tian Hua Zhou, Xing Wen Liang
Table 1 The measured strength of materials
Steel
Steel type
Yield strength[MPa]
Ultimate strength[MPa]
channel
2[5
411.0
512.1
Distribution Bars
f6.5
428.8
557.1
f8
440.1
530.0
f10
443.2
519.7
hoops
d5
—
713.0
Table 2 The detailed parameters of six specimens
Specimen No
Confining boundary elements
Horizontal distribution rebars
Axial load[kN]
Axial load ratio
Shear span ratio
Steel
Hoops
SHPCW-01
2[6.3
d5@40
2Ф10@100
1100
0.17
2.1
SHPCW-02
2[5
d5@40
2Ф10@80
1600
0.25
2.1
SHPCW-03
2[5
d5@40
2Ф10@80
1100
0.17
1.5
SHPCW-04
2[5
d5@30
2Ф8@120
1400
0.22
1.5
SHPCW-05
2[5
d5@40
2Ф6.5@100
1600
0.25
1.0
SHPCW-06
2[5
d5@30
2Ф8@100
1400
0.22
1.0
(a) SHPCW-01 (b) SHPCW-02
(c) SHPCW-03 (d) SHPCW-04
(e) SHPCW-05 (f) SHPCW-06
Fig.1.
CHD2009 JC154), China Postdoctoral Science Foundation funded project (Grant No.20110490165) and National Natural Science Foundation of China (Grant No.50678146).
China Civil Engineering Journal, 1997, 30(5), 1997: 3-11
[5] Soon, H.C., Bryce, T. and William D, C. etal: Journal of Structural Engineering, ASCE, Vol. 130(2004).
CHD2009 JC154), China Postdoctoral Science Foundation funded project (Grant No.20110490165) and National Natural Science Foundation of China (Grant No.50678146).
China Civil Engineering Journal, 1997, 30(5), 1997: 3-11
[5] Soon, H.C., Bryce, T. and William D, C. etal: Journal of Structural Engineering, ASCE, Vol. 130(2004).
Online since: December 2013
Authors: Xiao Bin Ding
In order to ensure comprehensive evaluation of scientific rationality and be able to reflect the level of project risk situation fully and objectively, the establishment of comprehensive evaluation index system should follow the principle of the science, operability, guidance quality, quantization, flexibility.
Risk index system of project Project risks(x) Environmental risks(X1) political risk(X11) economic risk(X12) market demand(X13) Technical risks(X2) application extent(X21) technical maturity(X22) Implementing Environment(X23) standard extent(X24) Production risk(X3) raw material producing(X31) raw material purchasing(X32) Management risks(X4) Quality of decision-makers(X41) Management incentives(X42) Schedule management(X43) market entry timing(X44) Financial risks(X5) 窗体顶端 Financial security and additional investment capabilities(X51)窗体底端 Money demand uncertainty(X52) uncertainty of cash use effect(X53) Meanwhile, invite experts to evaluate the factors and give multiple comparisons of indexes, then get the resulting factor layer weight vector is: [, , , , ]=[0.13, 0.26, 0.37, 0.13, 0.11]; weight vector of index layer is [ , , ]=[0.7, 0.23, 0.19], [, , , ]=[0.31, 0.13, 0.17, 0.36], [, ]=[0.22, 0.78], [, , , ]=[0.14, 0.19, 0.41, 0.23], [, , ]=[0.42, 0.38, 0.21]. 4.2Expert estimation
[3]Xin-hong Zhang, “A Neural Network Synthetic Evaluation Method for the Investing Risk of the High-Technical Projects,” Intelligence Science Report.
A fuzzy knowledge-based decision support system for groundwater pollution risk evaluation[J].Journal of Environmental Management 73 (2004):189-197
,The Application of an ANFIS and Grey System Method in Turning Tool-Failure Detection [J].The international journal of advanced manufacturing Technology.2002(19): 564-572.
Risk index system of project Project risks(x) Environmental risks(X1) political risk(X11) economic risk(X12) market demand(X13) Technical risks(X2) application extent(X21) technical maturity(X22) Implementing Environment(X23) standard extent(X24) Production risk(X3) raw material producing(X31) raw material purchasing(X32) Management risks(X4) Quality of decision-makers(X41) Management incentives(X42) Schedule management(X43) market entry timing(X44) Financial risks(X5) 窗体顶端 Financial security and additional investment capabilities(X51)窗体底端 Money demand uncertainty(X52) uncertainty of cash use effect(X53) Meanwhile, invite experts to evaluate the factors and give multiple comparisons of indexes, then get the resulting factor layer weight vector is: [, , , , ]=[0.13, 0.26, 0.37, 0.13, 0.11]; weight vector of index layer is [ , , ]=[0.7, 0.23, 0.19], [, , , ]=[0.31, 0.13, 0.17, 0.36], [, ]=[0.22, 0.78], [, , , ]=[0.14, 0.19, 0.41, 0.23], [, , ]=[0.42, 0.38, 0.21]. 4.2Expert estimation
[3]Xin-hong Zhang, “A Neural Network Synthetic Evaluation Method for the Investing Risk of the High-Technical Projects,” Intelligence Science Report.
A fuzzy knowledge-based decision support system for groundwater pollution risk evaluation[J].Journal of Environmental Management 73 (2004):189-197
,The Application of an ANFIS and Grey System Method in Turning Tool-Failure Detection [J].The international journal of advanced manufacturing Technology.2002(19): 564-572.
Online since: August 2013
Authors: Federico Balugani, Matteo Marsala, Antonio Costantino, Alberto Vergnano
Meitzner, “Progress in Reconfigurable Manufacturing Systems”, J. for Manufacturing Science and Production, Vol. 6 (2011), No. 1-2, p. 1-8
Pini, “Enhancing changeability of automotive Hybrid Reconfigurable Systems in digital environments”, International Journal on Interactive Design and Manufacturing, Vol. 6 (2012), No. 4, p. 251-263
“The role of co-simulation in the integrated design of high-dynamics servomechanisms: an experimental evaluation”, Applied Mechanics and Materials Vols. 278-280, pp. 1758-1764, 2013
“Hybrid Reconfigurable System design and optimization through virtual prototyping and digital manufacturing tools, International Journal on Interactive Design and Manufacturing (IJIDeM), Vol. 6 (2012), No. 1, p. 17-27
Ribickis, “Increasing the energy efficiency of multi-robot production lines in the automotive industry”, IEEE International Conference on Automation Science and Engineering (2012), pp. 700-705.
Pini, “Enhancing changeability of automotive Hybrid Reconfigurable Systems in digital environments”, International Journal on Interactive Design and Manufacturing, Vol. 6 (2012), No. 4, p. 251-263
“The role of co-simulation in the integrated design of high-dynamics servomechanisms: an experimental evaluation”, Applied Mechanics and Materials Vols. 278-280, pp. 1758-1764, 2013
“Hybrid Reconfigurable System design and optimization through virtual prototyping and digital manufacturing tools, International Journal on Interactive Design and Manufacturing (IJIDeM), Vol. 6 (2012), No. 1, p. 17-27
Ribickis, “Increasing the energy efficiency of multi-robot production lines in the automotive industry”, IEEE International Conference on Automation Science and Engineering (2012), pp. 700-705.