Search results

Dynamic characteristic analysis of the 3D spring model of column with triangular section Meng-Yan Song1, a , Ge Tian1, a, Ming-Wu Yuan2, b , Li-Na Ge1, a , Jing-Jing Song1, a ,*Xiang-Rong Fu1, a 1Department of civil Engineering, China Agricultural University, Beijing, 100083 China 2 Department of mechanics and Engineering Science ,Peking University, Beijing,100871 China axrksmy@163.com, b yuanmw@pku.edu.cn Keywords: dynamic characteristic analysis, spring model, triangular section Abstract.
Engineering Mechanics, 19(4), 12–16 (2002) [4] Fu, X.
Key Engineering Materials, 385-387, 617–620 (2008) [5] Fu, X.
Engineering Computations, 27(4), 442–463 (2010) [6] Cen, S., Fu, X.
Computer Methods in Applied Mechanics and Engineering, 200(29-32), 2321–2336 (2011) [7] Wang Zhenke ,Wei Lelei ,The equivalent spring calculation model of beam-columns with Retangle sections

The energy solutions for the stability of tower crane Ming Xin Huang1, a, Jian Ping Xu2, b, Jian Guo Wu2, c 1Tongji University, No.1239 Siping Road,Shanghai, 200092,China 2College of Civil Engineering and Architecture, Zhejiang University of Technology, No.18 Chaowang Road ,Hangzhou ,Zhejiang ,310000,China ahuangmx88@foxmai.com, bjeffhuihz@gmail.com, cwujg63@163.com Keywords: Tower Crane, Energy Method , Attached Wall , Buckling Load Abstract: The energy method is used to solve the buckling load of tower crane.
Miton: Wind tunnel test method to study out-of-service tower crane behaviour in storm winds, Journal of Wind Engineering and Industrial Aerodynamics,Volume 92, Issues 7–8, June 2004, Pages 687–697, A selection of papers derived from those presented at the 11th International Conference on Wind Engineering
Butler: Cranes in storm winds, Engineering Structures,Volume 3,Issue ,July 1981, Pages 175–180
Pfei: Dynamic behavior and stability of transmission line towers under wind forces, Journal of Wind Engineering and Industrial Aerodynamics,Volume 91, Issue 8, August 2003, Pages 1051–1067,First Americas Conference on Wind Engineering
[6] Subrata Chakrabarti: Instability analysis of offshore towers in waves, Engineering Structures Volume 30, Issue 11, November 2008, Pages 3193–3203

Infrared scene simulation has extensive application value in military and civil fields.
Design and implementation of infrared complicated scene simulation system [J], Infrared and laser engineering, 2005,34 (2): 241-243252
Infrared and laser engineering, 2013,42 (4): 1100-1105.

As it can determine the θ value increment size and value range according to identify the positive and negative of equation P=f(θ); then by means of the searching for calculation and discrimination of system,it ultimately can solve the numerical solution of Pmax=0 in a limited height ,security status and engineering geological conditions and find the limit slope angle θ*.
Thus it can deal with the open-air high and steep slope optimization design, and simultaneously resolve the design the technology of landslide treatment and the optimization program ,At the same time it has engineering application value. 1 Foreword With the rapid development of China's economy, infrastructure projects, all kinds of major projects and the construction of various types of mining has also been in a rapid development period.
But because of the small residual thrust so far, here it can use 39º slope as the critical slope whose safety factor Fs=1.15,i.e. the limit slope angle is 39 º, and thus it can solve the problems of slope optimization design considering safety factors and engineering geological conditions.
References [1] Qian jia-huan, Yin zong-ze:general editorshipGeotechnical principles and calculation [M].the secondedition Beijing：China Water Power Press，1996.302～344 [2] Zheng ying-ren,Zhao shang-yi.Application of strength reduction FEM in soil and rock slope[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(29):3382一3555 [3] Zhao shang-yi, Zheng ying-ren, Chi wei-min et al.Analysis on safety factor of slope by strength reduction FEM [J].Chinese Journal of Rock Mechanics and Engineering,2002,24(s).343一546 [4] Zheng Ying-ren，Zhao Shang-yi，Deng Wei-dong .Numerical simulation on failure mechanism of rock slope by strength reduction FEM[J].Chinese Journal of Rock Mechanics and Engineering,2005,22(12).1943一1952 [5] Zhu da-yong.Critical slip field of slope and its numerical simulation [J].Chinese Journal of Rock Mechanics and Engineering,1997,9 (1): 63～69 [6] Zhu da-yong, Zhou zao-sheng.Theory of globally critical slip field of slopes and
its application to practical engineering China Civil Engineering Journal, 1999, 32 (3): 66～72 [7] Zhu da-yong, Qian hu-sheng, Zhou zao-sheng.Based on the residual thrust method of critical sliding field slope[J].Chinese Journal of Rock Mechanics and Engineering,1999(6):667～670 [8] Li qing-yang，Wang neng-chao，Yi da-yi edit.Numerical analysis[M].the fifth edition.Beijing： Tsinghua University Press，2008.211～214 [9] Sun shi-guo, Ran qi-fa, Li guo-zhu.Method of optimum design using technology of critical sliding field[ J].China Mining Magazine，2006 ( 10) : 72-74 [10] Sun shi-guo.Effect of combined underground and open pit mining and deformation mechanism of slope [J].Chinese Journal of Rock Mechanics and Engineering,1999,18(5):360～364

Study on the Impact of Lead-Rubber Bearing Parameters on Seismic Responses of Seismically Isolated Pier Yuanqing Xu1, a, Tieyi Zhong1, b, WengangJi2, c, Xu Li1, d 1School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China, 2CCCC ROAD AND BRIDGE CONSULTANTS CO.LTD, 100029, China axuyuanqing470@163.com, btyzhong2008@163.com, cwengangji@sina.com, dlilixuxuwudi@126.com.
Wu have studied on mechanical characteristics of LRB and its application for seismic mitigation and isolation in bridge engineering [3].
Jangid, Optimum lead–rubber isolation bearings for near-fault motions, Engineering Structures 29, pp: 2503–2513, 2003
Sheng, Equivalent elastic seismic analysis of base-isolated bridges with lead-rubber bearings, Engineering Structures, Volume 16, Issue 3, April 1994, pp: 201-209, 1994
Li, Research on Some Design Parameters of Seismically Isolated Bridges, China Civil Engineering Journal, Vol.33 (5)pp:52-56, 2002

Environment-Based on Experimental Design of Concrete Structures Libing Jina and Xiaoli Xiongb Department of Civil Engineering, Henan University of Technology, Zhengzhou 450052, China a jinlb@haut.edu.cn, b x_shanley@sina.com.cn Keywords: Concrete Structure; Experiment; Durability; Environment; Chloride Abstract.
(In Chinese) [2] Li Yunfeng, and Wu shengxing, Engineering Science, Vol. 7(2) (2005), p. 81.
(In Chinese) [9] Yuan Yingshu, Zhang Xinsen, and Ji Yongsheng, CHINA CIVIL ENGINEERING JOURNAL, Vol. 39(3) (2006), p. 42.
International Journal of Structural Engineering, Vol. 1(1)(2009), p.40
Journal of Zhejiang University (Engineering Science), Vol. 44(4) (2010), p. 789.

An incremental method for cable force tuning of the concrete cable-stayed bridge considering cable-girder temperature difference effect Ma Niu-Jing School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China maniujing_1@163.com Keywords: cable-stayed bridge; cable force tuning; incremental method; frequency method; cable-girder temperature difference Abstract.
However, lots of engineering practices indicate the errors of measured cable forces are very large.
Taking Banfu No.2 Bridge as an engineering case, an incremental method was presented for cable force tuning of this bridge.
As a result, a finite element model of Banfu No.2 Bridge was built via MIDAS/CIVIL software, so as to calculate the cable force variations with respect to 1℃ rising of the whole bridge and only cables, respectively, as shown in Table 1.
Wang: Practical formula for cable tension estimation by vibration method, Journal of Bridge Engineering, Vol.17, No.1 (2012), p.161-164 [2] B.H.

Stability analysis of central haulage in Baluba copper mine Gaohui Yao1, a, Yiming Wang2,b and Kaijian Hu3,c 1 CNMC Luanshya Copper Mines PLC,Zambia 2 School of Civil and Enviromental Engineering, University of Science &Technology Beijing, China 3 School of Civil and Enviromental Engineering, University of Science &Technology Beijing, China ayaogaohui@163.com, b ustbwym@126.com, c kaijianvms123@sina.com Keywords: Protection Pillar, Failure Mechanism, Strengthening of the rock mass, Support Layout, Steel Arch Set.
Mountfort, in: A handbook on Rock Engineering Practice for Tabular Hard Rock Mines (Creda Communications,Cape Town 1999)
S.Huang,in:Chinese Journal of Geotechnical Engineering Vol.31 (2009),p.40-47(In Chinese)
[6] X.P.Zhou, X.M.Xu, S.L.Chen, in:Chinese Journal of Rock Mechanics And Engineering Vol.25 (z1),2006,p.2656-2661(In Chinese)
[7] X.K.Zhang, L.G.Wang, Y.Wu, X.Dong, in:Journal of Mining And Safety Engineering Vol.25 (2008), p.46-49(In Chinese)

Experimental Study on the Durability of Square-section Columns Externally Wrapped with Carbon Fiber Reinforced Polymer Lingling Zhang 1, a, Jianxun Ma 1, b and Ling Zhang 2, c 1 Department of Civil Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, China. 710049 2 Key Laboratory of Education Ministry for Strength and Vibration, Xi’an Jiaotong University, Xi’an, Shaanxi, China. 710049 a zhangll_718@sina.com.cn, b majx@mail.xjtu.edu.cn, c zhangl@ mail.xjtu.edu.cn Keywords: Carbon Fiber Reinforced Polymer (CFRP); Dry and Wet Cycles of Saltwater; Freeze and Thaw Cycles; Durability Abstract.
So it has engineering background and practical significance for this paper to mainly study the durability of strengthened square-section columns under marine environment.
It shows that lap joint length of 100mm is sufficient for practical engineering need.
(3) There was no apparent effect of external environment on the failure model, and the lap joint length of 100mm can meet practical engineering need completely
References [1] Denghu Jing, ShuangyinCao: China Civil Engineering Journal.

Introduction Structural systems in engineering are complicated and their behavior is not easy to predict.
Thesis, Department of Civil Engineering, University of Colorado, Boulder, Colo., (1990)
[4] Harikrishna Narasimhan, Assessment of System Reliability and Robustness for Structural Systems, Institute of Structural Engineering Group Risk and Safety, 7 Nov (2007)
Thesis, Department of Civil Engineering, University of Colorado, Boulder,　Colo., (1994)
[9] Frangopol, D.M., Curley, J.P., Effects of Damage and Redundancy on Structural Reliability, ASCE Journal of Structural Engineering, 113(7),( 1987), pp.1533-1549