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Dynamic Effects on a Pre-stressed Multi-story Plane Steel Frame Caused by Sudden Failure of a Cable Fei Wang 1, a, Bai Jian Tang 2, b, * 1 Civil Engineering Department, Jiangsu University of Science and Technology, Zhenjiang, China 2 Civil Engineering Department, Jiangsu University of Science and Technology, Zhenjiang, China a lefm@yahoo.cn, b tangbaijian@163.com *Corresponding author.
Lehman: Engineering Structures, Vol. 31 (2009) No.1, p.182
Ru: Mechanics in Engineering, Vol. 30 (2008) No.4, p.54.

A Study on Performance Evaluation of Green Supply Chain Management Based on DEA Huimin Jia1,a, Kaichao Yu1,b * and Jinchang Zhang1,c 1Mechanical & Electrical Engineering College, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China a1104266983@qq.com, b342789266@qq.com, c2858520056@qq.com Keywords: Green supply chain, DEA model, Effective Abstract.
(4)Green supply chain management reflects ideology of concurrent engineering, considering the production of the material, manufacturing process and the recycling and reuse parallelly
Proceeding of the Institution of Civil Engineers.
Civil Engineering, 2000, vol. 138(2): 49-54 [4] Quanling Wei, Evaluation of the relative effectiveness of the DEA method[M].China Renmin University Press. 1988 (In Chinese) [5] Bond T C.

The experimental study on steel crane-girder before and after reinforcement CAO Fu Bo 1, 2,a, WEI Hong Gang3,b and CHENG Zhi Hui 2,c 1Department of Civil Engineering, Nanjing University of Aeronautics and Astronotics，Nanjing,210016,China 2Architecture and Civil School,UST Inner Mongolia,Baotou, 014010,China 3Metal structure installation engineering co.of.china second metallurgy(group)corp ,Baotou, 014010,China a15949488601@139.com, b15949488501@139.com, cwangchenxia@qq.com Keywords: steel crane-girder; fatigue damage; eccentricity load; crack; reinforcement Abstract.
The reinforcement scheme put forward in the paper is easy to the construction and does not affect the normal operation of production, also the engineering cost is low and has a promotional value.
[2] Harold S R,David A D,Fatigue cracking in welded crane runway girders:causes and repair procedures [J].Iron and Steel Engineer,1978,237（5）:91-94

A Study on Internal Force Monitoring and Back Analysis of Supporting and Protecting Structure of Rock Deep Foundation Wenrong Yan 1,2 , Yonghui Liu 1 , Jingkun Pi 1 , Zhenhua He 1 1Zhengzhou Railway Co, LTD Henan Zhengzhou 450000, China 2School of Civil Engineering and Mechanics of Huazhong University of Science and Technology Hubei Wuhan 430074 michelyan@163.com Keywords: deep foundation, supporting and protecting structure, internal force monitoring, back analysis Abstract.
With the rapid development of bridge engineering, the application of supporting and protecting structure that embeds in deep foundation engineering is gradually applied in the design and construction of large-scale suspension bridge.
According to the characteristics of this current engineering, 18 stress gauges are buried in each monitoring hole with the first group of stress gauges laid on top of the wall down to 6 meters and the others 10, 14, 18, 22, 24, 26, 28, 30 meters.
Fig. 6 The calculated stress of outer reinforcement of diaphragm wall Fig. 7 The crack of embedded rock of diaphragm wall Conclusions Deep foundation engineering is one of the hot issues of geotechnical studies, and the north anchor engineering of Huangpu River Bridge discussed in this paper is currently a rarely seen large foundation in China.
Water Conservancy and Marine Traffic Engineering Academic Journal, Vol.(3):32-37(2003) [6] Yinghui Zhang, Guoliang Dai: Academic Journal of Tongji University, Vol. 29(10): 1142-1146(2001)

Time frequency analysis of blasting vibration superposing signal under different millisecond intervals Wei Zhang 1,2, a, Shihai Chen 2,b 1 Shan Dong Jiao Tong University, Jinan, 250023, China 2 Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation(SDUST), Qingdao, 266590, China azhangwei333518@126.com, b cshblast@163.com Keywords: blasting vibration; waveform superposition; millisecond interval; time-frequency characteristics; vibration reduction by waveform interference Abstract.
Besides, Anderson summarized the relationship between the millisecond interval and the vibration frequency through many engineering blasting materials and illustrated it with gray image[6].
Satisfactory vibration reduction effect can be achieved only after understanding the relations between the characteristics of blasting vibration signals and the millisecond interval and adopting suitable schemes for different engineering problems.
JK2010-2), Special Fund for Taishan Scholar of Shandong Province and Foundation for Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation.
Chinese Journal of Rock Mechanics and Engineering 2005; 7: 17-22.

Variational Problem of Unloading Fractured Rock Mass Yu Li1 Fu Ming-fu1,2 Tu Bin3 1The Civil Engineering And Architecture of Nanchang University,330031; 2Nanchang Insitute Of Technology,330099; 3Institute Of Technology.
Introduction Deformation and destruction is the core problem of rock mass engineering.
Fractured rock mass is one of the most common object in construction of rock engineering[2].
This kind of engineering accidents happened frequently, such as cavities collapse caused by excavation, slopes slipping, collapse, rock bursting caused by excavation and blasting.
Literature References [1].Wu Gang,Sun Jun.The Deformation And Strength Characteristics Of The Fractured Rock Mass Under The Unloading Stress State(in Chinese)[J],Rock Mechanics and Engineering Journal.1998. 17(6):615～621

Design and Kinematic Analysis of Planar Four-bar Linkages with An Object Oriented Python Program Ming Sun Department of Civil Engineering and Construction Management, , Yong zhou 425199 China sun_126248@hotmail.com Keywords: Mechanism, Program, Python, Kinematic Abstract: A python program is developed for analysis and design of planar four-bar linkages.
Introduction A design which has poor kinematics will be troublesome and perform badly in mechanical engineering [1].
So the kinematic of planar four-bar linkages is an important topic in industry, and it is also a foundation knowledge that taught to most mechanical engineering users.
CATIA is recommended in 3D simulation for mechanism, it supports multiple stages of product development from conceptualization, design, manufacturing, and engineering.
Users will understand principles and numerical aspects of four-bar linkages effectively, and develop their own programs for solving complicated engineering problem.

Technical Focus Impact engineering has been expanding its research scope mainly from the study of dynamic behavior of materials and structures and projectile impact into sports, human dynamics, processing of new materials and a variety of other fields.
主催：第８回 衝撃工学に関する国際シンポジウム組織委員会 共催：大阪大学 大学院基礎工学研究科、日本材料学会衝撃部門委員会 日本実験力学会衝撃工学分科会 独立行政法人 日本万国博覧会記念機構 協賛：日本機械学会、日本金属学会、土木学会、日本航空宇宙学会、日本建築学会 Sponsored by The 8-th International Symposium on Impact Engineering Organizing Committee Cosponsored by Graduate School of Engineering Science of Osaka University The Society of Materials Science, Japan (JSMS) The Japanese Society for Experimental Mechanics (JSEM) Commemorative Organization for the Japan World Exposition('70) CAE Solutions Co.
Supported by The Japan Society of Mechanical Engineers (JSME) The Japan Institute of Metals and Materials Japan Society of Civil Engineer (JSCE) The Japan Society for Aeronautical and Space Sciences (JSASS) Architectural Institute of Japan

Chinese Journal of Rock Mechanics and Engineering. (2008).
Underground Engineering and Tunnels. (2008).
Journal of Civil, Architectural and Environment Engineering. (2009).
Chinese Journal of Rock Mechanics and Engineering. (2004).
Infrared and Laser Engineering. (2006).

Satyanarayanan3,c 1Research Scholar, 2Professor, 3Professor and Head / Civil Department of Civil Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, TN, 603203, India athilagat@srmist.edu.in, bgunasekk@srmist.edu.in*, chod.civil.ktr@srmist.edu.in Keywords: Coconut shell, Treatment, Water absorption, Porosity, SEM image, ImageJ.