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Numerical Study of the Effect of Wall Opening on Wind Pressures on Low-rise Gable-roofed buildings Shuifu Chen1, a, Miao Yu1, b and Dongyao Wang2, c 1Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China 2Huaxin Consulting Company Limited, Hangzhou 310014, China acsf@zju.edu.cn, bmuketu@zju.edu.cn, cwangdy@hxdi.com Keywords: Low-rise building; Gable roof; Wall opening; Numerical simulation; Wind loading; Wind pressure coefficient Abstract.
Ginger and Letchford [3] used the external and internal pressures measured on the WERFL (Wind Engineering Research Field Laboratory) full-scale test building at Texas Tech to determine the net pressures at some selected points on the walls and roof, when nominally sealed and when containing large openings, respectively.
mean wind pressure coefficients Pressure coefficients Windward wall center Leeward wall center Side wall center Roof center Windward roof edge Inside building Computed 0.80 -0.36 -0.39 -0.39 -1.13 0.71 Measured [3] 0.62 -0.43 -0.40 -0.37 -1.28 0.61 From Table 1 it is seen that: (1) the computed mean pressure coefficients on the windward wall center and inside the building are a little larger than the measured values, but the computed coefficients on the side wall center and roof center are much close to the corresponding measured values; (2) the computed pressure coefficient magnitudes on the leeward wall center and windward roof edge are slightly smaller than the measured values; (3) as a whole, the current numerical simulation technique appears to be an effective approach for prediction of the external and internal wind pressures on low-rise buildings with wall openings, and the relative computational errors may be controlled within 30% which is generally acceptable for practical engineering
Stathopoulos: Computational wind engineering: past achievements and future challenges, J.

Track Link-Terrain Interaction Simulation Based on Terramechanics LI Guangbu 1,a, DAI Li 2,b, XU Minghua 2,c and SHI Fengying 3,d 1Department of Mechanical Engineering, Shanghai Normal University, 201418, China 2Department of Computer, Shanghai Normal University, 200234, China 3Department of Civil Engineering, Shanghai Normal University, 201418, China aliguangbu@163.com, bdailolo2008@yahoo.cn, cxuminghua0415@126.com, dshify@163.com Keywords: Terramechanics; pressure-sinkage; drawbar pull; simulation Abstract A review of terramechanics terrain models and discuss on their application in link-terrain, wheel-terrain and tire-terrain interaction are taken.
Institution of Mechanical Engineers.
[5] Wong J.Y.: Terramechanics and Off-Road Vehicle Engineering (Oxford, UK: Elsevier, 2010).

Four-Node Quadrilateral Shell Element MITC4 DVO ˇR ´AKOV ´A Edita1,a,∗, PATZ ´AK Boˇrek1,b 1Department of Mechanics, Faculty of Civil Engineering, CTU in Prague, Th´akurova 7, 160 00 Prague, Czech Republic aedita.dvorakova@fsv.cvut.cz, bborek.patzak@fsv.cvut.cz Keywords: Finite Elements; MITC4; Scordelis-Lo Shell; Shear Locking; Shell Structures.
Introduction Shell structures are widely used in structural engineering for their load-carrying efficiency.
Bittnar, Design of object oriented finite element code, Advances in Engineering Software 32 (10-11) (2001) 759-767
Bathe, Finite element analysis of shell structures, Archives of Computational Methods in Engineering, Vol.4, 1 (1997) 3-61.

Analysis of Flexibility and Stability of Crane Telescopic Boom with Elastic Restraint and Secon-Order Effect Liang DU1a, Nianli LU 1b, Peng LAN 1c 1 School of Mechatronic Engineering;Harbin Institute of Technology;Harbin, China aDuliang.sme@163.com, bN.lu@hit.edu.cn, cLan_p@sina.com Keywords:multistep column; stability analysis;structural flexibility; elastic restraint; second-order effect; Abstract.
In actual engineering, the boundary condition of compression-bending members are not all simple or clamped supported , they usually have elastic restraint.
(in Chinese) [9] Lu Nianli,Lan Peng,Bai Hua.Precise stability analysis of telescopic boom.Journal of Harbin University of Civil Engineering and Architecture. 2000, 33(4):89-93(in Chinese) [10] Lu Nianlil,Luo Bing,Xia Yongjun.Stability analysis and maximum bending moment calculation of free beam with elastic constrains at both ends based on second-order theory[J], .Hoisting and Conveying Machinery,2009(5): 8―11 [11] Li Q S.
Engineering Structures, 2003, 25(10): 1289―1299

Failure Process Analysis of Arch Dam with Explicit FEM Yu Xia 1, a, Xiao-lian Zhao 2,b, Da-wei Wang 3,c and Chong-qing Zhang 4,d 1Civil Engineering and Architecture Department of Guangxi University of technology, Liuzhou, China 2 College of Resources and Environment, Guangxi University, Nanning China 3Guangxi Communications Planning Surveying and Designing Institute, Nanning China 4College of Civil and Architecture Engineering, Guangxi University, Nanning, China asumm-rain@163.com, bxiaolianbsh@126.com , c76640410@qq.com, dzhangzq@gxu.edu.cn Keywords: arch dam failure process explicit FEM safety analysis.
References [1] Ren qing-wen: status quo and problems on safety analysis of high arch dam. journal of hydraulic engineering (In Chinese).
Chinese journal of rock mechanics and engineering (In Chinese).

Eco-design of the interior light environment Xiao Liu1,a , Bing Wang 1, b 1 School of Architectural and Civil Engineering, Shenyang University, Shenyang, 110044,China a liuxiao19740701@sina.com.cn , b wangbing616@163.com Keywords: ecological; light environment; reflection coefficient.
One of the basic conditions of light is the intensity of illumination level. the United States lighting engineering society gave a intensity of illumination range, according to the design of the more difficult to determine the factors (such as the coolie size, light contrast requirements, etc.).
Fig.3 An apartment Conclusion At present indoor light environment are increasingly being notice, interior lighting engineers in indoor light environment design already appeared and research specialized.
Journal of lighting engineering, Vol. 16 (2009), p. 35.in Chinese [4] Qin Fang.

Shirazi1,a, Imran Hosen1,b Mohammad Sholichin2,c, and Shatirah Akib1,d 1 Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia. 2 Department of Water Resources Engineering, Faculty of Engineering, University of Brawijaya, Malang 65145, Indonesia a smshirazi@gmail.com, b hosen.imran09@yahoo.com, c mochsholichin@yahoo.com, d shatirah@um.edu.my Keywords: Groundwater, water quality, lithology, pumping test Abstract.

India 2Department of Civil Engineering, CINVESTAV-IPN, Unidad Queretaro Libramiento norponiente no. 2000, Fracc.
The tensile strength testing has been done on Instron machine, Civil department, RGPV.

The Method and Experimental Research on Seam Tracking and Dual-Beam Laser Welding for T-type Welding Seam PingJiang Wang1,a, Xin Wang1,b, Ling Lin1, Yang Wu1 1 National Numerical Control System Engineering Research Center, Huazhong University of Science and Technology, Wuhan, Hubei 430074 China a pj_wang@hust.edu.cn, b wangxin2014hust@sina.com Keywords：T-type welding seam; dual-beam laser; CNC system; seam tracking Abstract: Aimed at the goal of improving the quality and the efficiency of welding for T-type welding seam, This paper put forward a method to track the seam by using the vision sensor.
Introduction T-type welding seam is common with the structure of civil aircraft.
To replace the riveting with laser welding, it can not only minimize the weight of the civil aircraft, but also enhance productivity and reduce production cost[1].

Theoretical calculation 3.1 The calculation Method/Module This essay calculated and analyzed the live load effect of Edong bridge based on MIDAS/Civil Method.
China Civil Engineering Journal,1993,26(1): 31-3.in Chinese [3] Xiao Jie, Wu Dingjun, Lu Jianbin.