Welcome to AECE!

2016 International Conference on Architectural Engineering and Civil Engineering (AECE2016)

December 9-11, 2016, Shanghai, China

Notice: AECE2016 Program Book.pdf

News:All the papers of AECE2016 have been listed on the official website:ATLANTIS PRESS

2016 International Conference on Architectural Engineering and Civil Engineering (AECE2016)

December 9-11, 2016, Shanghai, China

Notice: AECE2016 Program Book.pdf

News:All the papers of AECE2016 have been listed on the official website:ATLANTIS PRESS

KEYNOTES




Prof. K. M. Liew
Head and Chair Professor of Civil Engineering, Department of Architecture and Civil Engineering, City University of Hong Kong
Title of Presentation: Nanocomposites for Engineering Applications
Abstract: Nanocomposites are advanced materials possessing high strength and stiffness as well as high aspect ratio and low density. In recent years, many researches have been focused on carbon nanotube (CNT) reinforced composites. Research findings have reported the remarkable physical and mechanical properties of CNTs, making them a strong candidate for the reinforcements in polymer composites. The axial Young's modulus of single-walled carbon nanotube arrays with diameters ranging from nanometer to meter scales. The mechanical properties of CNTs are superior to those of carbon fibers. In recent studies, CNTs have been designed to be uniaxially aligned in an axial direction following the functionally graded pattern, leading to a new class of composite material – that is, the CNT-reinforced functionally graded composite material. This CNT-reinforced composite can be used in the form of beam, plate or shell structural components. Because of their usage in a variety of structures, studies of their mechanical behavior, in terms of bending, buckling, vibration, large deformation, postbuckling and large amplitude vibration have received considerable attention. In this talk, the effects of various geometric and material parameters on the mechanical behavior of CNT-reinforced composite structures will be presented.


Prof. S. H. Zhang
Professor at Beijing University of Civil Engineering & Architecture
Title of Presentation: Characteristics and Applications for Low-Carbon Catalytic Combustion of Natural Gas
Abstract: This article discussed the thermal efficiency, stability and pollutant emissions characteristics of the combustion of lean natural gas-air mixtures in Pd metal based honeycomb monoliths by means of experiments on a practical burner V. The chemistry at work in the monoliths was then investigated by the stagnation point flow reactor (SPFR), a fundamental experimental reactor. It was found that catalytic combustion inhibited the extent of gas-phase oxidation and increased the surface temperature of homogeneous ignition.
Due to the theory, several catalytic combustion instruments of natural gas were designed and studied. 
According to the applications of catalytic combustion in the condenser boiler, the data of catalytic combustion condenser boiler V were measured at atmospheric temperature and pressure. The study also showed that more than 95% of its thermal efficiency was found possible while preserving near zero pollutant emissions. For all the catalysts tested, flow rates, and mixture compositions of natural gas and air used here, neither CO (the unburned fuel) nor NOx were detected as long as surface combustion was taking place.
The catalytic combustion oven and furnace of natural gas were mature instruments. The catalytic combustion furnace was used to heat tri-colored glazed pottery of the Tang Dynasty. It has higher artistic value and can be comparable to the traditional process.
There is distinguishing feature about the taste and quality of the roasted duck by catalytic combustion oven. The result of experiment showed generally that saving energy  and environmental protection of catalytic combustion oven  for roasted food are better than that of conventional oven. 
The technology of catalytic combustion will provide prevention and cure of photochemical smog. It is a new   technology of international forward position, which has the characteristics of high efficiency, energy saving and near zero pollutant emissions.


Prof. P. S. Wei
Xi-Wan Chair Professor of NSYSU since 2009, and Invited Distinguished Professor in the Beijing University of Technology, China
Title of Presentation: Factors Affecting Temperature and Heat Transfer near the Ground
Abstract: The effects of radiative properties of emission gases of water vapor and carbon dioxide on temperature and heat transfer in the troposphere layer, which is less than the altitude of 10 km in the atmosphere, are presented in this work. Accounting for wavelength, temperature and concentration- dependent radiative properties, this work systematically evaluates heat transfer encountered in the atmosphere near the earth surface. Even though global warming strongly affects the life of the human being, the cause of global warming is still controversial. This work thus establishes a fundamental, systematical and quantitative analysis of heat transfer in the troposphere layer. For the sake of simplicity, the heat transfer is assumed to be one-dimensional conduction and radiation modes. The solar irradiation penetrates through the atmosphere within its short wavelength range near the visible range, and absorbed and reflected by the earth ground. The ground emits radiation in the ranges of long wavelengths. Water vapor is transparent to long wavelength range 8-12 micrometers , whereas carbon dioxide is absorbed in three long wavelength bands centered at 15, 10.4 and 9.4 micrometers, respectively. The computed results show that the difference in temperatures predicted by using constant and realistic radiative properties of water vapor and carbon dioxide can be as high as several Celsius degrees.


Assoc. prof. Jason XU
Chief Engineer of Test Center of Civil Engineering of Tianjin University
Title of Presentation: Research on Anchorage Behaviors of Transverse Enhanced CFRP Tendons in Beam String Structure
Abstract: Carbon Fiber Reinforced Polymer (CFRP) has many superior material properties, such as low weight, high tensile strength, good resistance to corrosion, creep and fatigue, low linear expansion coefficient, low relaxation rate, and can be used as prestressing element for prestressing structures instead of steel cable. The problems of anchorage and connection of one type of transverse enhanced CFRP tendons for the beam string structure are discussed here. Based on the developed mechanical anchorage for CFRP tendons, one kind of anchorage applied to beam string structure was developed and tested. This new anchorage system includes four components: outer shell, two pieces of wedges, pressing plate and soft metal sleeve. The test results showed that, for a wedge with an angle of 10°, the 5-mm-diameter CFRP tendon was anchored successfully, but the early failure happened for 7-mm- and 9-mm-diameter tendons due to high pressure caused by the wedge. During the tests, the effects of wall thickness, length, cutting width and surface treatment of sleeve on the anchorage performance were analyzed. The effects of slope angle of wedge and the friction coefficient between the wedge and the outer shell on the anchorage performance were analyzed by numerical simulation. The results of simulation revealed that the sleeve should ensure adequate roughness on internal and external surfaces, enough wall thickness, cutting width, and appropriate length to avoid some failure mode caused by components themselves. Based on the failure mode analysis of laboratory tests and numerical results, some detailed suggestions were proposed to improve the new anchorage for its application to large diameter CFRP tendons. The results obtained in this research provide useful information and reference for the application of CFRP tendons in beam string structures.


Distinguished Research prof. Lu-Wen Zhang
School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University    
Title of the presentation: Mechanical Behaviors of Nanocomposite Structures
Abstract: The rapid advancements in the civil, aerospace, defense, marine and automotive industries have demanded the use of more advanced materials to bear the greater mechanical loads created by external loads. Nanocomposites have been selected for many applications within these industries. The recent discovery of the remarkable physical and mechanical properties of carbon nanotube (CNT) reinforced composites has generated tremendous research interest, within the context of allowing them to be readily usable in these applications. Previous research has revealed that CNTs possess high strength and high stiffness, but low density. They can be integrated into advanced composites and thus are a firm candidate for reinforcement in polymer composites. The presenter’s work is useful to understand the constitutive and material properties of CNT-reinforced composites, and other advanced nanocomposites.  



Assoc. prof. L. J. Huang
Associate Professor, Institute of Disaster Prevention Technology, National Kaohsiung University of Applied Science, Taiwan
Title of the presentation: Recent Progress in Research on the Linear and Nonlinear Engineering Properties of Controlled Low-Strength Materials (CLSM)
Abstract: Recently sustainable materials become more and more popular and interesting research subjects. Among these topics, controlled-low strength materials (CLSM) have been widely applied to excavation and backfill applications which grow rapidly for the highly developed city and urban demands. CLSM is a kind of flowable fill defined as self-compacting cementitious material that is in a flowable state at the initial period of placement and has a specified compressive strength of 1200 psi or less at 28 days or is defined as excavatable if the compressive strength is 300 psi or less at 28 days. The special features of CLSM include: durable, excavatable, erosion-resistant, self-leveling, rapid curing, flowable around confined spacing, wasting material usage and elimination of compaction labors and equipments, etc. Recent progress in the research on engineering properties of CLSM will be presented: (a) experimental studies and results; (b) numerical analysis of linear and nonlinear static behavior; and (c) dynamic behaviors. Potential applications in construction and pavement engineering including backfill for retaining wall, embankment, trench ducts, and so forth will be addressed.


Assoc. prof. C. M. Chan
Associate Professor of the Civil Engineering Technology Department, Faculty of Engineering Technology, University Tun Hussein On Malaysia
Title of the presentation: Dredged Marine Soils for Sustainable Civil Engineering Reuse: From Waste to Wealth
Abstract: Dredged marine soils are generally considered a waste material for disposal, either in designated offshore locations or inland containment facilities. The disposal measures, very much an out of sight, hence out of mind approach, invariably incur additional costs, time and labour, both for transportation as well as construction of the disposal facilities. Apart from the apparent lack of sustainable values, there is always the risk of transferring undesirable contaminants to the disposal sites as well as along the transportation routes. Considering that the material is essentially soil-based, primarily consisting sand, silt and clay with some larger marine debris, it is perhaps most apt to harness its inherent properties as a ‘soil’ and reuse it as a geomaterial. In civil engineering and construction terms, this would involve reusing the soils as a backfill materials, for creating new land bases or restoring eroded ones in near-shore areas, for instance. This lecture puts the recycling and reuse of dredged marine soils into practical engineering context, taking into account perspectives of physical, chemical, biological and mechanical fundamentals, so as to give the exercise an all-round consideration. This encompasses definition of the dredged marine soils from all relevant aspects, the tests and measurements involved to identify the properties and behavior, the up-to-date test results and findings in making the soils reusable, the application processes as well as effective in situ implementation via a strategic technology management framework. In addition, the lecture describes the inherent physical, chemical, biological and mechanical properties of dredged marine soils. Treatment via solidification for improvement of engineering properties are also discussed for efficient reuse of the treated materials, primarily in the creation of artificial land or reclamation in near shore areas. The admixtures used include hydraulic binders like cement, and other industrial wastes such as steel slag and coal ashes. In a nutshell, the study demonstrates existing potential solutions and possibilities for giving a second life to the otherwise waste soils from dredging activities.


Assoc. prof. Kerim AYDINER
Associate Professor of the Mining Engineering Department in Karadeniz Technical University
Title of the presentation: Rock Deformation Behavior under Iterative Loading
Abstract: Underground rock structures are mostly designed on the static loading conditions. However, rock units and rock structures are subjected both to static and dynamic loads. Static loads occur due to gravitation. Earthquakes, blasting, rockburst, rock drilling and moving of underground machines are a couple of the samples for the dynamic loads. These loads act permanently and are repeated later.  
Limited number of past research on the topic have revealed that the iterative loads cause weakening of rock mechanical properties. Dynamic loads result in the worsening of the conditions of the rock units such as faults, joints, bedding planes and also the walls of underground openings and pillar surfaces. Rocks exposed to dynamic loading conditions deform under their ultimate breaking loads. In other words, the accumulated may cause rock to deform prematurely.  
Deformation due to iterative loading is mainly under the control of the rock properties and loading conditions. In addition to rock petrography, mechanical and physical parameters of rock, existing static load, loading frequency and amplitude and the loading rate affect fatigue of rock. Temperature change and the water content have also important effect on the rock deformation under iterative loading. 
This presentation will highlight the findings about research on the effect of dynamic loading on tensile strength of rock. 


Dr. Togay Ozbakkaloglu
Senior Lecturer of Structural Engineering at the University of Adelaide
Title of Presentation: Toward the development of sustainable composite structural systems using waste-based concretes 
Abstract: It is now widely recognized that the conventional construction practices are not capable of delivering sustainable urban development. Recent research has shown that the environmental impact and carbon footprint of structures can be significantly reduced through the use of i) more eco-efficient construction materials and ii) better designed structural systems. This talk will focus on one of the most promising of these structural systems, the so-called concrete-filled fiber reinforced polymer (FRP) tube system, where the concrete is filled into a prefabricated FRP tube to form a composite member that maximizes the advantages offered by both materials. The behaviours of these composite members under different loading conditions will be presented. The development of next-generation high-performance, low-impact structural systems with eco-efficient, waste-based concretes including recycled aggregate concrete and geopolymer concrete will also be discussed.

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