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Mechanical Characteristics of Concrete Exposed to External Flexural Load, De-icing Salt and Freeze-thaw Cycles Xiaolu Yuan 1, 2, a, Beixing Li 2, b, Shangchuan Zhao 3, c, Shihua Zhou 4, d 1College of Civil Engineering and Architecture, Three Gorge University, Yichang, China, 443002 2Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan, China, 430070 3Research Institute of Highway of Ministry of Transport, Beijing, China,100088 4Changjiang River Scientific Research Institute, Wuhan China, 430010 ayuanxiaolu1980@yahoo.com.cn, b libx0212@126.com, csc.zhao@rioh.cn, dzhoush@mail.crsri.cn Key words: mechanical characteristics; flexural load; de-icing salt; freeze-thaw cycles; concrete Abstract: This paper investigates mechanical characteristics of concrete exposed to external flexural load, de-icing salt and freeze-thaw cycles.
Engineering mechanics (Higher Education Press, China, 2004)

Dissimilar friction stir welding of 2014 to 6061 Aluminum Alloys Caroline Jonckheere1a, Bruno de Meester1b, Anne Denquin2c and Aude Simar1d 1Institute of Mechanics, Materials and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve, Belgium 2ONERA, BP72, Av. de la Division Leclerc, 92322, Chatillon CEDEX, France acaroline.jonckheere@uclouvain.be, bbruno.demeester@uclouvain.be, canne.denquin@onera.fr, daude.simar@uclouvain.be Keywords: dissimilar 2014-6061 welds, hardness profile, temperature measurements, fracture Abstract Welding cheap and ductile 6xxx Al alloys with high strength 2xxx Al alloys is desirable for instance in specific aeronautical applications.
Ry is the pseudo yield strength at 0,1%, Ru is the pseudo-ultimate tensile strength, eu is the engineering strain at ultimate load, ef is the engineering strain at break and “Weld eff.” is the weld efficiency calculated as the ratio of the Ru to the Ru of the relevant base material (i.e. 6061 for dissimilar welds)

., 86# Yuantongbei Road, Kunming, China, 650031 2 College of Resource and Civil Engineering, Northeastern University, Box 265, 3# Wenhua Road, Shenyang, China, 110004 3 Department of Metallurgical Engineering, University of Utah, Room 412, 135S 1460E, Salt Lake City, UT, U.S.A, 84112 4 Kunming Metallurgy Research Institute, 86# Yuantongbei Road, Kunming, China, 650031 a zhanghp@cymg.com, b xiaoliwang0907@gmail.com, c x.wang@utah.edu, d jians545@sina.com, e zhaoqun@cymg.com Keywords: complex lead-zinc ores, selective flotation, bulk flotation, combined concentrate of lead and zinc, recovery, acid leaching under high pressure, leaching efficiency Abstract: The run-of-mine of complex lead-zinc ores in Yunnan contains 3.26% lead and 2.54% zinc.
China Engineering Science Vol. 7 (2005), p.15-18

GENERALIZED GRADIENT-DEPENDENT PLASTICY THEORY Bing Zhao 1,2,a Ning Li 2 Yi Song 1,3 Xiao-qiang YAN 1,3 1School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha 410076, China aemail: zhaob_m-y@163.com 2Institute of Geotechnical Engineering, Xi’an University of Technology, 710048, China 3School of Mathematics and Computer Science, Ningxia University, Yingchuan, China Keywords: geotechnical plastic mechanics; localization; Gradient-dependent; strain gradient; generalized plastic potential Abstract.
During the last few decades, advances in computer technology and numerical methods such as finite element method have provided solutions for complex boundary value problems in geotechnical engineering.

Effect of Detailed Formations on the In-Plane Shear Capacity of Hairpin Connectors in Precast RC Floor Slabs Rui Pang1 a, Shuting Liang1 b, Xiaojun Zhu2,c, Yao Meng1,d 1College of Civil Engineering, Southeast University, Nanjing, 210096, China； 2Architectural Design & Research Institute of Southeast University, Nanjing, 210096, China aseupangrui@163.com, bstliang@seu.edu.cn, czhu_share@tom.com, dmy19861019@126.com Keywords: Detailed Formation; Precast Floor Slab; Hairpin Connector; Shear Capacity Abstract: Detailed formation of precast floor slab connectors has significant effect on their shear capacity, but there is no such specific provision on it at present.
Some structural engineers are keen on the study of flat plate floor, such as precast hollow-cored floor system[8,9], as shown in figure1.
ASCE, Journal of Structural Engineers, 2007, 133(11): 1627-1635

Comprehensive Assessment of Water Inrush Risk in Deep Mining of Beiminghe Iron Mine Changhong Li1,2,a, Lixin Zhang2,3,b 1Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China 2School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China 3Anhui Development Mining Co., Ltd, Hanxing Metallurgical Mine Administration, Anhui Liuan 237462, China alch@ustb.edu.cn, bzlxandzy@126.com Key words: Deep mining, Water inrush, Comprehensive evaluation.
These water inrush factors relate to complex geological problems of hydro-geology, engineering geology, mining conditions and rock mechanics etc.
[7] State Bureau of Technical Supervision: Geological Instruction of Hydrogeology and Engineering Geology of Mine (GB12719–1991), Standards Press of China, (1991) , in Chinese

Residual Marshall stability and rutting test was conducted according to Highway Engineering Testing Procedure of Asphalt Mixture (JTJ052-2000), which are the industry standards of Transportation Deportment in People's Republic of China.
Therefore sewage sludge consolidation can be safely used in engineering.
References [1] Cao Xiuqin, ChenJun: Journal of Beijing Institute of Civil Engineering and Architecture Vol.18 (2002), p.39 [2] He Peisong, Zhang Jirong and Chen ling: Journal of ecology Vol. 23 (2004), p.131 [3] Bagree,A., Bashkova,S. and Lock,D.C.: Environ.

Research on Semi-rigid Connections Calculation of Laminated Wood Frame Beam-column Zhihui Bian1,2,a, Tiecheng Wang1,b, Shiyong Zhao1,2,c and Sujuan Fu2 1 School of Civil Engineering, Tianjin University, Tianjin, China 2 Hebei Academy of Building Research, Shijiazhuang, China a bzhbyh@126.com, b wangtiecheng@eyou.com, c 2004zsy@sina.com, d fsj2503@163.com Keywords: laminated wood frame; eemi-rigid connections; calculation model; internal forces derivation; SAP2000 software.
This paper is calculated and analysed by the M-θ three-parameter exponential model which is commonly used in engineering, three parameters power function formula as the formula (1) below
F., Kishi N., Semi-rigid steel beam-to-column connections: data base and modeling, Journal of Structural Engineering, 1 (1989) 105-119

Effect of the Combined Using of Fly Ash and Granulated Blast Furnace Slag on Properties of Cementless Alkali-Activated Mortar Kyungtaek Koh1, a, Gumsung Ryu1,b, Shihwan Kim1,c and Janghwa Lee1,d 1Structural Engineering & Bridge Research Division, Korea Institute of Construction Technology, Goyang 411712, Republic of Korea aktgo@kict.re.kr, bryu0505@kict.re.kr, cshkim@kict.re.kr, djhlee@kict.re.kr Keywords: Fly ash, Granulated blast furnace slag, Cementless alkali-activated mortar, Workability, Compressive strength, Microstructure, Curing Abstract.
Lee, Key Engineering Materials 417-418 (2010)
Liu, Journal of materials in Civil Engineering 19, 6 (2007)

Experimental study of injured RC beam–column joints strengthened with CFRP Zhiyong Yang 1,a, Zhengfei Chang 1,2, Mingxin Fang 1,Jun Hu1, Gang Wang1,2 1School of Civil Engineering and Architecture, Wuhan University of Technology, 122 # Luoshi Road, Wuhan, Hubei, R.P.China, 430070 2ShenZhen YJY Building Technology Co., Ltd, Houhai Building, Houhai Road, Nanshan District, R.P.China, 518054 aE-mail: fmx126@163.com Keyword : Frame joint, Carbon fiber reinforcement, Injured, Seismic behaviour Abstract.
An experimental study on two different strengthening techniques for RC frame.Engineering Structures 28 (2006) 1843–1851
Journal of Structural Engineering ASCE 1995;121(8):1225–35