Search results

Numerical Analysis on the Influence of Thermal Insulation Way of Closure on Smoke Flow Properties in Building Fire XuanWei Peng1, a 1School of Civil Engineering & Architecture , Chongqing University of Science & Technology, Chongqing, China, 401331 aWells_p@cqust.cn Keywords: Building Energy Saving; Heat Insulation Way; Building Fire; Smoke Temperature; Smoke Concentration; Numerical Analysis.
Concrete Engineering International, Vol.9(4) ,(2005), P. 20-22
Comparison of sub-models of heat transfer in network model of fire. 2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011-Proceedings, (2011), P.5660-5662.
Chongqing: Chongqing University, Faculty of Urban Construction and Environmental Engineering, (2001).
Chongqing: Chongqing University, Faculty of Urban Construction and Environmental Engineering, (2002).

Apartment of Civil Engineering and Tianjin Institute Of Urban Construction, Tianjin 300384，China a.dingks509@126.com, b.tjshaoqiang@sina.com Keywords: diaphragm wall; soil inclination; numerical simulation; hyperbolic arch; lagging ability Abstract: Based on a certain super deep building foundation pit of Tianjin railway station, according to analysis of measured data and numerical analysis, it get the changing regular of horizontal displacement of retaining and protecting for foundation excavation——diaphragm wall, and surrounding soil around foundation pit.
The general situation of engineering The traffic hub project of Tianjin Railway Station is underground engineering utterly.
The area of this engineering is above one hundred and twenty eight thousand square meters.
The engineering uses the program of cover against the practice of digging.
Municipal Engineering Technology, Vol. 26 (4), (2008),p:341- 347.

Mechanism of Early Cracking and Serviceability of Precast Reinforced Concrete Bridge Deck Slabs Juan Huang and Liqun Tang Department of Civil Engineering, South China University of Technology, Guangzhou 510641, China cvjuanhuang@scut.edu.cn Keywords: Reinforced concrete, Slab, Cracking, Serviceability.
This paper has solved the problems in engineering practice, furthermore effective and economical crack control measurement and technical proposal are recommended from design, construction and amendment of design specifications.
In engineering practice, the conventional simply-supported beam is indeed seldom likely to crack on self-weight loading because of the generally favorable span-depth ratio.
With highway bridges overloading increasing, for bridge engineers, there is no better choice but to substitute 13 m precast slab members with prestressed concrete hollow slabs to control cracks caused by self-weight loading.
Stefanou: Punching Shear Resistance of Prestressed Concrete Slabs, Journal of Engineering Fracture Mechanics, Vol. 44(1993), p.137-153

Wang1,a 1 School of Mechanical Engineering & Automation, Northeastern University, 110004, China 2 The National Key Laboratory of Mechanical Manufacturing System Engineering, 710049, China 3 School of Resource & Civil Engineering, Northeastern University, 110004, China 4 School of Information Science & Engineering, Northeastern University, 110004, China a neuhaolina@163.com Keywords: Rough set, Fault diagnosis, Expert system, Rule modification Abstract.
Up to now, practical engineering system of rough set data analysis is seldom, to develop rough set data analysis software is the important research task in intelligent systems [4,5].
Acknowledgements Thanks for the support by Mechanical Manufacturing System Engineering National Emphases Laboratory Open Fund, Liao'ning Province Doctor Fund (20021007), and Shenyang Application Development Research Plan (1032040-1-01).

From an engineering point of view ECBM recovery is thus an adsorption/desorption process at supercritical conditions in a natural underground coal formation, which is accomplished by injecting CO2 in one or more injection wells and by collecting CH4 from one or more production wells.
The knowledge of how the adsorption or desorption of gases affects coal permeability is important not only to operations involving the production of natural gas from coal beds, but also to the design and operation of projects to sequester greenhouse gases in coal beds[9]. 1.Governing equations In many cases in reservoir engineering, the storage of fluids is dominated by storage in the matrix, whereas permeability is dominated by fluid flow in fractures.
The Role of Hydromechanical Coupling in Fractured Rock Engineering.
Journal of Petroleum Science and Engineering 13 ( 1995) 155-168
American Society of Civil Engineers,2000:30~36 [13]Zhongwei Chen, Jishan Liu, Derek Elsworth.

Hoque3,c 1,2,3Department of Mechanical Engineering, Rajshahi University of Engineering & Technology, Rajshahi-6204, Bangladesh arubel.ruet10@yahoo.com, bjafor.rajshahi@gmail.com, cemdadulhoque@gmail.com Keywords: Drive Shaft, ANSYS, Static Structural Analysis, Modal Analysis.
Thus it is a numerical procedure that can be used to obtain solutions of engineering problems [13].
In structural engineering, modal analysis uses the overall mass and stiffness of a structure to find the various periods at which it will naturally resonate.
Kim, Engineering Design and Rapid Prototyping, MIT, 16.810, (2004)
Civil Eng., 10 (2013) 2, 43-46

Forty two percent of all these civil disputes taken place in China stemmed from project contracts, with some of them are cases that involve casualty accidents, which is serious enough to raise attention of building enterprises.
Being the centralized reflection of engineering risks, proprietor risks and external factor risks together with the project contract risk is the uncertainty that exists alongside a contract.
Exerting direct influences on contractors’ economic benefits, engineering changes, which includes alternations in design, technical schemes, project quantities, are common in the construction process.
Meanwhile, the contractor has to assume the risk of engineering changes—unit price risk within the engineering change scope specified by the contract[6].
Precautionary Measures in Risk Management of Engineering Contract Strict Examinations of Contract Prior to Official Signing.

A Robust Design of SD-PID and BP-PID Simulated Control Model for Brake Designing Dan Ma1,2,* and Jida Huang3 1 State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221008, China 2 School of Mechanics & Civil Engineering, China University of Mining & Technology, Xuzhou 221008, China 3 School of Mines, China University of Mining & Technology, Xuzhou 221008, China *madan518@126.com Keywords: PID control, System Dynamics, BP neural network, Compensation.
Taguchi, a Japanese quality engineer [1].
Engineering practices commonly used computer control method is: put the entire braking time discrete into many small period of time, and then under the previous time period observed instantaneous speed and instantaneous torque, designed this time driving current value, by this process until the complete brake.
Taguchi: Introduction to Quality Engineering.
International Journal for Numerical Methods in Engineering, Vol. 53 (9) (2002), p.2201-2215.

Review on research status of Friction Stir Welding technology Zhang Defen1a, Long Fei1b, Chen Xiaowen1c, Wen Xiangqian2d, Luo Hongsong1e 1 School of Materilas science and engineering，southwest petroleum univerisity， chengdu, sichuan province 610500 2 College of civil engineering , Hebei university of engineering , Hebei Handan 056038 a zhangdefen0304@163.com b anhuilongfei1987@163.com c xwchen5188@163.com d wxq03107424387@163.com e lhs224@163.com Key words: Review; Friction stir welding; Research status; Aluminium alloy Abstract： Friction stir welding(FSW) as a new，environmental and energy-saving solid phase joining technology has become the focus of research in the welding field at home and abroad in recent years.
Y J Chao et al adopted SHPB and tested the related mechanical property of joint for AA2024-T3 and AA7075-T7351 based on technical support of research team of mechanical engineering school at the South Carolina State University[11]. 1.3 Research situation on numerical simulation of FSW for aluminum alloys There are several numerical simulation softwares used for the FSW process (ANSYS, FLUENT et al) .Chao Yuh j et al adopted 3D finite element simulation technique to study the of the FSW temperature field of 6061-T6, remaining stress distribution and weld strain[12].
However, because of the diversity of engineering alloys for technical application, FSW for other alloys is also involved[16].
Transactions of the China Welding Instiution, 2003, 24 (5): 84-90 [15] The Chinese mechanical engineering society welding society.

The Influence of Geometry of Pedestal Piles in Silt on Uplift Behavior HAO Dong-xue1, a*, ZHANG Jin-zhong1,b and CHEN Rong1,c 1School of Civil Engineering and Architecture, Northeast Dianli University, Jilin, Jilin Province, China ahaodongxue2005@126.com, bjincui521521@126.com, clg1316cih@126.com Keywords: uplift behavior; rigid pedestal piles; silt; model test Abstract: The uplift behavior of rigid pedestal pile is affected by the geometry, which is not totally same with plate anchor.
Introduction Pedestal piles are widely used in geotechnical engineering such as transmission tower, ports and pier to resist uplift loading and moments.
Proceedings of the 5th International Conference on Soil Mechanics and Foundation Engineering[C], 1961, 1: 569-576
Journal of Geotechnical Engineering, ASCE, 1987, 113(3): 202–215
Canadian Geotechnical Engineering, 1968, V(4): 225-244