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Online since: March 2011
Authors: Hai Xia Wei
Study on Simulation Signals of Blasting Seismic Waves Based on Technology of Wavelet Analysis
Haixia Wei
School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
whx19820828@163.com
Keywords: Blasting Seismic Waves, Wavelet Analysis, Measured Signals, Simulation Signals, Structural Dynamic Response
Abstract.
(In Chinese) [2] Jianwu Lou, Yuan Long, Quanjun Xu and Wei Shen: Engineering Blasting, Vol. 7 (2001) No. 1, pp. 7-11.
(In Chinese) [3] Debin Zeng, Dachao Lin, Chunhua Bai and Qi Zhang: Engineering Blasting, Vol. 7 (2001) No. 3, pp. 1-4, 41.
[7] Lingli Chen: Numerical Methods of Dynamic Analysis for Engineering Structures (Xi’an Jiaotong University Press, China 2006).
(In Chinese) [2] Jianwu Lou, Yuan Long, Quanjun Xu and Wei Shen: Engineering Blasting, Vol. 7 (2001) No. 1, pp. 7-11.
(In Chinese) [3] Debin Zeng, Dachao Lin, Chunhua Bai and Qi Zhang: Engineering Blasting, Vol. 7 (2001) No. 3, pp. 1-4, 41.
[7] Lingli Chen: Numerical Methods of Dynamic Analysis for Engineering Structures (Xi’an Jiaotong University Press, China 2006).
Online since: May 2011
Authors: Jiang Dong Cai, Ding Ceng Yu, Ya Dong Chen, Qing You
Study on Depositional Environment of Soil Based on Multi-fractal Theory
Jiangdong Cai a Dingceng Yu b Yadong Chen c Qing You d
Department of Civil Engineering, Huaiyin Institute of Technology, Huai’an, China
aadx973@163.com, byudc@163.com , cchenyund@163.com, dxinyi0523@163.com
Key words: soil; sedimentary environment; fluvial action; river; simple fractal dimension; multifractal spectrum;
Abstract.
From these indices, we can judge the sedimentary environment of soil and infer the engineering property of the field.
Engineering exploration is an effective method to investigate the property of soil buried in the depths.
Theory and applications, ICASE/LaRC Series in Computational [6] Science and Engineering, Oxford University Press, Oxford, 1996, p. 349
From these indices, we can judge the sedimentary environment of soil and infer the engineering property of the field.
Engineering exploration is an effective method to investigate the property of soil buried in the depths.
Theory and applications, ICASE/LaRC Series in Computational [6] Science and Engineering, Oxford University Press, Oxford, 1996, p. 349
Online since: February 2014
Authors: Annamária Dudás, László Farkas
Building physical, energetical and hygrothermal analysis of
earth-sheltered building constructions
Annamária Dudás1,a, László Farkas2,b
1BUTE, Faculty of Civil Engineering, Department of Architectural Engineering, H-1111 Budapest
2Aquaseal Ltd, H-1116 Budapest, Hungary
adudas.annamaria@met.bme.hu, blaszlo.farkas@aquaseal.hu
Keywords: earth-sheltered building constructions, environmentally conscious design, building simulation, hygrothermal analysis
Abstract.
Parallel to building constructional examinations impacts of sanitary engineering were revealed as well.
Szalay, The new building energetics regulation – Guide (2006) BAUSOFT Pécsvárad Kft., (2009) PTE Pollack Mihaly Faculty of Engineering and Information Technology (in Hungarian) [5] MSZ-04-140-2:1991 Hungarian standard for calculation of hygrothermal properties [6] J.
Parallel to building constructional examinations impacts of sanitary engineering were revealed as well.
Szalay, The new building energetics regulation – Guide (2006) BAUSOFT Pécsvárad Kft., (2009) PTE Pollack Mihaly Faculty of Engineering and Information Technology (in Hungarian) [5] MSZ-04-140-2:1991 Hungarian standard for calculation of hygrothermal properties [6] J.
Online since: January 2011
Authors: You Li Ma
ModeⅠand ModeⅡ Stress Intensity Factors Based on Crack Opening and Sliding Displacements
You-li Ma
School of Energy and Civil Engineering, Harbin University of Commerce, Harbin, China
E-mail: myl0505@yahoo.com.cn
Keywords: Fatigue crack, Annealed crack, Residual stress, Discontinuous displacement, Stress intensity factor.
Engineering Fracture Mechanics, Vol.13, (1980), p.439-451
Transactions of the Japan Society of Mechanical Engineers. 42(424), (1981), p.1283-1292 [7] L Kachanov.
Engineering Fracture Mechanics, Vol.36(6), (1990), p.971-978
Engineering Fracture Mechanics, Vol.13, (1980), p.439-451
Transactions of the Japan Society of Mechanical Engineers. 42(424), (1981), p.1283-1292 [7] L Kachanov.
Engineering Fracture Mechanics, Vol.36(6), (1990), p.971-978
Online since: October 2012
Authors: Yun Li Yan, Ke Bo Zhang
Classification of Durability of Concrete Structures Based on Environmental Action
Zhang Ke-bo1, a, Yan Yun-li1,b
1 School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha Hunan 410004, China
a zhangkblyx@vip.sina.com, burany@qq.com
Keywords: concrete structure; durability; environmental action; comprehensive evaluation; classification; concrete carbonation
Abstract.
Introduction The classification of environmental action on concrete structures could prolong the carbonation life of concrete structures and provide guidance for designers or constructors of engineering.
This method is accurate in a sense which can satisfy the requirement of engineer calculation.
[8] Hairong Wu, Weiliang Jin and Qingfang Lv: Journal of Zhejiang University(Engineering Science), 2012,1-8.
Introduction The classification of environmental action on concrete structures could prolong the carbonation life of concrete structures and provide guidance for designers or constructors of engineering.
This method is accurate in a sense which can satisfy the requirement of engineer calculation.
[8] Hairong Wu, Weiliang Jin and Qingfang Lv: Journal of Zhejiang University(Engineering Science), 2012,1-8.
Online since: November 2013
Authors: Zi Jiang Yang
Green and building energy efficiency
Yang Zi-jiang
(Urban construction department of new technology college of hubei engineering university,Xiaogan,Hubei 432000
Key words: Trees green; wall green; roof greening; building energy efficiency;
Abstract: According to the greening construction to improve the effect of micro climate,we analyzes several greening measures to the influnence of building thermal environment, and have the conclusion:Greening can greatly improve the building indoor thermal environment, save energy, have the effect to beautify the city and improve the urban ecological environment.
Author introduction: Yang Zi-jiang (1974 -), male, YingCheng of hubei province, graduated from Chongqing university civil engineering, A teacher in new technology college of Hubei engineering university, associate professor mainly engaged in energy saving and structure theory research Address: New technology college of Hubei engineering university, urban construction department office Yang Zi-Jiang accept Telephone: 15629580987 Zip code: 432000 E-mail:yangzijiang0088@126.com References: [1].
Author introduction: Yang Zi-jiang (1974 -), male, YingCheng of hubei province, graduated from Chongqing university civil engineering, A teacher in new technology college of Hubei engineering university, associate professor mainly engaged in energy saving and structure theory research Address: New technology college of Hubei engineering university, urban construction department office Yang Zi-Jiang accept Telephone: 15629580987 Zip code: 432000 E-mail:yangzijiang0088@126.com References: [1].
Online since: December 2012
Authors: Togay Ozbakkloglu
Concrete-filled FRP Tubes: New Forms for Improved
Confinement Effectiveness
Togay Ozbakkaloglu1, a
1 School of Civil, Environmental & Mining Engineering, The University of Adelaide, South Australia
atogay.ozbakkaloglu@adelaide.edu.au
Keywords: Fiber reinforced polymers; Concrete; Confinement; Columns; Tubes; Stress-strain behavior.
Engineering Structures, http://dx.doi.org/10.1016/j.engstruct.2012.06.010 [2] Lam, L., and Teng, J.
Journal of Structural Engineering, ASCE, 133(1), 44-56
Engineering Structures, 30, 2448-2459
Engineering Structures, http://dx.doi.org/10.1016/j.engstruct.2012.06.010 [2] Lam, L., and Teng, J.
Journal of Structural Engineering, ASCE, 133(1), 44-56
Engineering Structures, 30, 2448-2459
Online since: July 2014
Authors: Wei Wang, Lei Wang
Study on Static and Dynamic Load Test of HuaRonggou Bridge
Wei Wang1,2, a, Lei Wang1, b
1Construction Engineering College of Jilin University, Changchun, China
2School of Prospecting and Surveying of Changchun Institute of Technology, Changchun, China
a16695496@qq.com, bwlei@jlu.edu.cn
Keywords: continuous beam bridge, static load test, dynamic load test, finite element analyze
Abstract: HuaRonggou bridge is a continuous beam bridge, which is built recently in Inner Mongolia.
The load test 1.1 Static load test According to the regulations and requirements of the Test Method of Long-Span Concrete Bridge [1] and Bridge Engineering Test Manual [2], the maximum load of the static test must be determined by the loading efficiency η, the efficiency of the load test should be within 0.8 to 1.05, and the computational formula is: (Eq. 1) The test selects a 5×20 meters sidespan which is close to Arun Banner to be a test span, and three control sections to be tested.
Fig.1 Arrangement diagram of control sections Fig.2 CM-2B digital resistance strain gauge Fig.3 DH3817 dynamic and static strain measurement Table 1 The control sections of the static load test Condition name Sections control Concrete location 1 the most-positive bending moment conditions of the main span A-A section The section of which distance from the center line of expansion joint in No.1 abutment is 9.94m 2 the maximum shear stress conditions of the main span B-B section The section of which distance from the pier supporting point is half of the beam height 3 the most-negative bending moment conditions of the main span C-C section The section of the pier supporting point Before the test, it makes the interspace analysis by Midas/Civil 2010, the main calculating parameters are shown in Table 2, and the bridge model is composed of 411 elements.
Table 3 The static load test efficiency value Sections control Upload condition Load efficiency factor A 1 1842.2(kN·m) 1497.7 (kN·m) 0.81 C 2 -1662.3(kN·m) -1531.7(kN·m) 0.92 B 3 354.2(kN) 338.8(kN) 0.96 C 4 210.8(kN·m) 194.0(kN·m) 0.92 According to Bridge Engineering Testing Manual, the load efficiency factor should be within 0.8 to 1.05, and all the values are up to the mustard.
Beijing: China Communications Press, 2004 “In Chinese” [2]《Bridge Engineering Testing Manual》[M] Beijing: China Communications Press, 2001“In Chinese” [3]《The highway reinforced concrete and pre-stressed concrete bridge and culvert design specifications》(JTG D62-2004) [S].
The load test 1.1 Static load test According to the regulations and requirements of the Test Method of Long-Span Concrete Bridge [1] and Bridge Engineering Test Manual [2], the maximum load of the static test must be determined by the loading efficiency η, the efficiency of the load test should be within 0.8 to 1.05, and the computational formula is: (Eq. 1) The test selects a 5×20 meters sidespan which is close to Arun Banner to be a test span, and three control sections to be tested.
Fig.1 Arrangement diagram of control sections Fig.2 CM-2B digital resistance strain gauge Fig.3 DH3817 dynamic and static strain measurement Table 1 The control sections of the static load test Condition name Sections control Concrete location 1 the most-positive bending moment conditions of the main span A-A section The section of which distance from the center line of expansion joint in No.1 abutment is 9.94m 2 the maximum shear stress conditions of the main span B-B section The section of which distance from the pier supporting point is half of the beam height 3 the most-negative bending moment conditions of the main span C-C section The section of the pier supporting point Before the test, it makes the interspace analysis by Midas/Civil 2010, the main calculating parameters are shown in Table 2, and the bridge model is composed of 411 elements.
Table 3 The static load test efficiency value Sections control Upload condition Load efficiency factor A 1 1842.2(kN·m) 1497.7 (kN·m) 0.81 C 2 -1662.3(kN·m) -1531.7(kN·m) 0.92 B 3 354.2(kN) 338.8(kN) 0.96 C 4 210.8(kN·m) 194.0(kN·m) 0.92 According to Bridge Engineering Testing Manual, the load efficiency factor should be within 0.8 to 1.05, and all the values are up to the mustard.
Beijing: China Communications Press, 2004 “In Chinese” [2]《Bridge Engineering Testing Manual》[M] Beijing: China Communications Press, 2001“In Chinese” [3]《The highway reinforced concrete and pre-stressed concrete bridge and culvert design specifications》(JTG D62-2004) [S].
Online since: November 2013
Authors: Xing Quan Li, Xiao Yan Sun, Ya Wei Li
In recent years, the application of the CFRP reinforced concrete technology has aroused widespread concern in the international arena and become the hotspot in the civil engineering study.
Engineering Mechanics, 2008,25(3): 120-125, 131.
Engineering Mechanics, 2006, 23(5): 74-82.
Engineering Mechanics, 2011,28(sup-1).
Engineering Mechanics, 2008,25(3): 120-125, 131.
Engineering Mechanics, 2006, 23(5): 74-82.
Engineering Mechanics, 2011,28(sup-1).
Online since: August 2013
Authors: D. Zhao, Q. Zhang
Zhang2,b
1 Department of Mechanics, College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580.
China 2 Department of mechanics, College of Mechanical Engineering, Tianjin University.
Altintas, Analytical Prediction of Three Dimensional Chatter Stabolity in Milling, Japan Society of Mechanical Engineers International 44 (2001) 717-723
Szabo, Stability of Linear Time-Periodic Delay-Fifferential Equations via Chebyshev Polynomials, International Journal for Numerical Methods in Engineering, 59 (2004) 895-922
China 2 Department of mechanics, College of Mechanical Engineering, Tianjin University.
Altintas, Analytical Prediction of Three Dimensional Chatter Stabolity in Milling, Japan Society of Mechanical Engineers International 44 (2001) 717-723
Szabo, Stability of Linear Time-Periodic Delay-Fifferential Equations via Chebyshev Polynomials, International Journal for Numerical Methods in Engineering, 59 (2004) 895-922