bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Green Building Assessment System Based on Bp Neural Network and Life Cycle Assessment (LCA)
Authors: Xia Li Ming , Liu Jing Jing
Published: August 2013

Life cycle assessment (LCA) as an environmental characteristics and environmental management tool, technically matured, has been more widely used in the international green building evaluation. This article analyzed the research of domestic and international Green Building Evaluation system and evaluation methods, on the basis of previous studies and combined with the development of green building, established a focused, scientific, practical, comprehensive multi-dimensional green building evaluation index system , combined with the life cycle assessment (LCA) and artificial neural network; and analyzed an engineering example to improve the assessment of green building, and help the organizations and individuals screen the green building, striving to achieve the humane, geographical, intelligent level in green building evaluation, by intelligent processing the evaluation indicators and taking advantage of the superiority of the computer technology.
Localized Ecology Design of the Architectural Interface
Authors: Shu Xin , Zhong De Kung
Published: August 2013

This article takes the factory reconstruction of NO.9 Xinhai Street (SIP) as an example, hoping to find a way of taking architectural interface as a starting point to well combine the greening, energy saving and economical elements with the local ecological design during the whole design process, while considering the local climate and cultural background at the same time. The paper also proposes several ecological strategies of architectural interface, including landscape renovation, natural lighting and ventilation, eco-shading system and architectural chamber.
What is the Real Study on the Difference of the 3D Simulation Skills for Architectural Spatial Design
Authors: Lei Zu Kang , Ding Ye , Zhou Le
Published: August 2013

This study started with the lack of students cognition in the process of architectural design and their weak comprehensive skills of 3D spatial design and it used the comparison study for exploring the different factors between the real environment and the virtual 3D auxiliary thinking tools-the physical model and digital model. This study has good practice application ofDesign with Experimentin the actual education.
Study on Development Strategy of Yesanguan Ecological Vacation Tourism in Badong Country Hubei Province
Authors: Dong Kun Peng , Liu Hong Lin , Gong Wei Qing
Published: August 2013

Based on the whole development plan of vocation tourism in Badong country, the development status and problems were analyzed for Yesanguan ecological vacation tourism in western Hubei province. The strategic orientation, strategic targets and measures of Yesanguan ecological vacation tourism are proposed. Through resource integration, administrative merge and unified plan, the new ecotourism products of southeast Badong are formed, and the Yesanguan tourist hub and Lucongpo alpine leisure international club would be built.
An Experimental Study on Behavior of FRP-HSC-Steel Double-Skin Tubular Columns under Concentric Compression
Authors: Ozbakkloglu Togay , Fanggi Butje Alfonsius Louk
Published: August 2013

This paper reports on part of an ongoing experimental program at The University of Adelaide on FRP-concrete-steel composite columns. The results from eight FRP-concrete-steel double-skin columns (DSTCs) that were tested under constant axial compression are presented. The key parameters examined included diameter, thickness, and strength of inner steel tube. The results of the experimental study indicate that concrete in a DSTC system is confined effectively by FRP and steel tubes. The results also indicate that increasing the inner steel tube diameter leads to an increase in the ultimate axial strength and strain of DSTCs. No clear influence of the strength of inner steel tube is observed on the ultimate condition of concrete in DSTCs. These results are presented together with a discussion on the influence of the key parameters on the compressive behavior of DSTCs.
Study on Influences of Slag Powder and Fly Ash on Concrete Penetration Performance
Authors: Wei Hong Yun , Wei Yu Guo , Zhang Xiu Li , Zhou Wei Feng , Li Yuan Yuan
Published: August 2013

The resistance to chloride ion penetration of the concrete added with slag powder and fly ash is studied in this paper. The tests show that: adding slag powder and fly ash to concrete can improve the concrete’s resistance to chloride ion penetration; if only adding slag powder, the larger the adding content and the longer the test age, the better the concrete’s resistance to chloride ion penetration; if only adding fly ash, the longer the test age, the better the concrete’s resistance to chloride ion penetration; at the age of 28, 56 days, if the fly ash adding content is 30%, the concrete’s resistance to chloride ion penetration is optimal, while at the age of 84 days, if the fly ash adding content is 40%, the concrete’s resistance to chloride ion penetration is optimal; if adding both slag power and fly ash, the larger the adding content and the longer the test age, the better the concrete’s resistance to chloride ion penetration; if the test age and adding content remain constant, for the concrete’s resistance to chloride ion penetration, it is the best when adding both slag power and fly ash, it is good when adding only slag power, and it is poor when adding only fly ash; for the influences of the test age on the concrete’s resistance to chloride ion penetration, it is maximum when adding only fly ash, it is moderate when adding both slag powder and fly ash, and it is minimum when adding only slag power; and the larger the adding content, the greater the influences of the test age on the concrete’s resistance to chloride ion penetration.
Comparison and Optimization of Habitation Form in Mixed-Use Mode under Marine Environment: Zhejiang as Example
Authors: Zhu Xiao Qing , Sun Jiao Jiao , Fu Jia Yan
Published: August 2013

This paper, based on the marine characteristics of "mixed industrial development", is intended to elaborate the cause of mixed residential construction, and analyze the characteristics of traditional fishermen's houses. Led by the art, restaurant and hotel industries, this mode builds mixed residential-type paradigm based on industry characteristics, thus forms the variable mixed residential-type mechanism. Furthermore, it also takes energy-saving technology optimization measures to promote the development of mixed residential-type paradigm with geographical features through the promotion mechanism and regulation, thereby providing constructive strategies for the mixed residential-type development of island.
Optimization of High Concrete Retaining Wall Structure
Authors: Gao Su Yang , Chen Yan , Xie Yao Feng , Lei Wen Dong , Yin Kai
Published: August 2013

The height of vertical pier retaining wall is relatively larger in regions with great height of water. As the retaining wall becomes higher, the cross-sectional area of ordinary gravity pier structure becomes larger and foundation strength needs to be larger, thus there are some restrictions for traditional structure form. This research focuses on new structure forms of high concrete retaining wall and its optimization design for piers in regions with great height of water. This study establishes a nonlinear constrained mathematical model of pier high retaining wall structures. The objective function is cross-sectional area of the pier retaining wall which is restricted by the stability, bearing capacity of foundation and strength of cross-section of retaining wall. This model is solved by fmincon function from Matlab and the results present an economically reasonable cross-section form. This new selection is greatly significant to improve the stability of high concrete retaining wall and reduce the project cost. The new structure is successfully used in a port of Huaihe River and it can be a solution to pier structure selection problem in regions with great height of water in the future.
Determination of Concrete Strength Based on the Double-Hole Shear In Situ Test
Authors: Zhu Wen Li
Published: August 2013

The determination of concrete strength in situ plays a critical role in the quality of structural engineering analysis and acceptance. The strength is usually determined through pure tension tests, like the common pull off test. However, in most applications, the shear strength is more interested. A novel approach, that is instrumented double-hole shear test, was presented for determining the strength of concrete. Drill two holes at two sides of measured concrete area, and the indentor is loaded from one hole in giving shear failure. Then, determine the strength of concrete according to the maximum shear stress when its destroyed. Conduct the double-hole shear test and the cubic compresion strength test on the different strength of concrete specimens and establish the correlations between the two strength values. The results show that the ratio of the two strength values is in the range from 0.085 to 0.351, which depends on the concrete strength.And the two strength values have a good linear relationship so it can provide a new method which can easily and reliably determine the concrete strength in situ.
Steel Rod Stability and Inelastic Buckling Study
Authors: Zheng Yao , Zheng Hong
Published: August 2013

Research on stability problem, has put forward the famous bar under axial pressure formula from the middle of the eighteenth Century Euler critical force, more than 200 years, the elastic range but recognize that Euler's formula is only suitable for the material, but it took more than a hundred years. Study on the inelastic critical load of column, double modulus theory and the tangent modulus theory. These theories are starting from the ideal straight rod, and practical bar called " defects exist various accidental eccentricity " ( such as physical and geometrical aspects of the initial deflection rod, pressure asymmetry in aspects of material unevenness, residual stress) is not consistent. Thus the utility pressure bar, should according to the eccentric pressing rod is considered more practical.
Study on the Dynamic Construction in Zaha Hadid’s Early Works
Authors: Li Jing Wei , Zhang Yong Yi
Published: August 2013

Zaha Hadid is the world’ s renowned master of architecture, and she was the first and, to date, the only woman who wins the prestigious Pritzker Architectural Prize. This paper analyzes the Dynamic Construction of Zaha Hasid’s early works from three aspects: the influence of Suprematism, the construction elements and method of the Dynamic Construction.
Grey Interval Model of the Temperature Rise Prediction of Massive Concrete in Construction Process
Authors: Dong Cheng Xiu
Published: August 2013

During the construction process of massive concrete, the construction must forecast and control the temperature forming of massive concrete in order to avoid the temperature crack owing to the thermal stress caused by the concrete heat. The discussion on the concept of grey system interval and grey number predication applies to the temperature rise prediction of massive concrete in the construction process. The previous temperature rise data is divided into the white part and grey part based on real numbers. And the interval grey number forecast computing models are established, so we can finish the temperature rise prediction during construction process. The forecasting results of case show that, this model has fast convergence and remarkable precision. Then, it is possible to realize the accurate temperature rise prediction of massive concrete.
The Research and Comparing Test on Calcium Carbonate-Acid Water Glass Grouting Material
Authors: Xiao Zun Qun , Xu Cai Yun , Wu Guo Dong
Published: August 2013

The change law of gel time of calcium carbonate-acid water glass grouting material with the content of calcium carbonate is researched in this paper. But the gel time does not increase evenly with reduction calcium carbonic reducing. It increases suddenly because there is sudden exceeding range with the solution pH value increasing. Meanwhile, the change relation of strength of pure gelation with suitable gel time and time is measured. Firming sand strength experiment is conducted by the better mixture ratio. The strength of pure gelation body increases with the time and the content of calcium carbonate increasing. It is closely related with the reaction mechanism of calcium carbonate-acid water glass. The active Ca2+ in this system can react with a series of silicate ion to form silicate precipitate which is filled with colloid and forming skeletonation. And the correlation between firming sand strength and the calcium carbonic acid content is non-significant. Finally, the contrast test of the water glass-glyoxal is done, which is the preparation for the subsequent engineering application.
Study on the Application of Desulfurization Gypsum for the Gypsum Fiber Board Production
Authors: Tang Chao Fa , Cai Chang Wen , Xu Bo , Liu Yan Long
Published: August 2013

Through semidry process, the wood fiber as reinforced materials and the industrial flue gas desulfurization waste calcinated calcium sulfate hemihydrate as an inorganic adhesive produced the environmental gypsum fiber board. This process is effective on utilization of desulfurization gypsum, which reduced the pollution of the environment and the demand of the natural gypsum, further to protect the natural environment. As green building decoration materials, gypsum fiber board has good prospects for development. The research results show that it is remarkable that the amount of the composite retarder is effective on the static bending strength, internal bond strength, grip screws to impact; the ratio of the wood and plaster is effective on the absorbent thickness expansion rate.
The Impact Molding and Test Results of High Fly Ash Block
Authors: Liu Zhong Dong , Zhao Wen Juan
Published: August 2013

In this paper the molding mechanisms of mibration compaction for concrete bricks is explained. A lot of concrete bricks with different ash content were by a vibration compaction machines produced. The characteristics of the concrete bricks are investigated. The experiments showed that the starting hardness of the concrete bricks at the separation from molding tools is sufficient for brick stacking.
Self-Healing Ability of Smart Coating for Anticorrosion of Reinforcing Steel
Authors: Wang Wei , Xu Li Kun , Li Li
Published: August 2013

Self-healing materials offer tremendous potential for providing long-lived structural materials. In this study, isophorone diisocyanate (IPDI) microcapsules as self-healing materials were synthesized via in situ polymerization. Thermogravimetric analysis characterized the thermal ability of IPDI, microcapsules and microcapsule shells. The morphology of microcapsules and microcapsule shells were characterized by FE-SEM. Scanning micro-reference electrode technique demonstrated that epoxy resin coatings with IPDI microcapsules on the surface of reinforcing steel Q235 could cure the scratched crevice by immersion in 0.01 M NaCl solution after the coating was scratched. The self-healing epoxy resin coating could protect Q235 from corrosion.
The Numerical Simulation of Projectile Penetrating into Steel-Fiber Reinforced Ultra High Strength Concrete Target
Authors: Li Dan , Tao Jun Lin , Tan Juan
Published: August 2013

Explicit finite element code was applied to simulate the steel fiber reinforced concrete (SFRC) and reactive powder concrete (RPC) target penetrated by kinetic energy projectile. Crater formation, spall of concrete target in penetration process was simulated very well. The numerical results of penetration depths are in good agreement with recent experimental results obtained from ballistic gun with 57mm caliber. The factors effecting on anti-penetration property of SFRC and RPC are analyzed. The results show that: the compressive strength and toughness of the target body have greater impact on anti-penetration performance in the range of projectile velocity 300m/s-600m/s. Anti-penetration capability of RPC concrete is stronger than that of ordinary steel fiber at the higher speeds.
Study on the Quick Hardening Cement-Based Grouting Material's Modification by Nano-Materials
Authors: Wang Li Hua , Duan Yi Fan
Published: August 2013

Sulpho-aluminate cement as the base material, rapid hardening cement-based grouting material can be formulated. In this paper, a study on grouting material fluidity and mechanical properties in different cement-sand ratios and nanoSiO2s impact on the performance of the grouting material is made. Based on the test, it can be learnt that Sulpho-aluminate cement as the base material, grouting material flow and mechanical properties can better meet the engineering requirements with nanoSiO2 of 1.0% and in a cement-sand ratio of 1:1.3.
Researches on Concrete Carbonation
Authors: Li Zhong Yuan , Wang Zhu Jun
Published: August 2013

The cause and prevention of concrete carbonation are core issues in the engineering community. With the improvement of the global CO2 concentration, more and more reinforced concrete buildings are faced with the problems of carbonation acceleration and following threats of steel corrosion which will heavily undermine the safety and durability of R.C. structures. The article from three major aspects, Concrete carbonation mechanism, causes of carbonation and carbonation influences, reviews and summarizes the current researches on carbonation and proposes valuable suggestions.
Analytic Solution of Inverse Regression Equation for Evaluating Concrete Strength of Building Materials: Theory and Method
Authors: Chen Jian Wei , Su You Po , Chen Hai Bin
Published: August 2013

The interval estimation for the presumption of structure concrete strength should be gained because of strong randomness of test data. For further exaltation of accuracy and credibility test concrete strength, analytic solution of inverse regression equation for evaluating concrete strength of building materials is presented herein based on the inverse regression model. The accurate solution for the presumption of concrete strength can be obtained through the analytic solution, detection precision and reliability for the presumption of structure concrete strength can be improved with respect to the traditional point estimation method.
Triaxial Research of Waste Tire Granules, Cement and Soil Mixtures
Authors: Li Li Hua , Chen Hui , Xiao Ben Lin , Wan Juan , Liu Yi
Published: August 2013

Waste tires are increasing year by year, which can destroy environment without dispose promptly. The mixtures of clay, cement with tire granules have been used abroad. Its advantages are obvious,such as light, seismic resistance, seepage proofing and high strength etc. Through triaxial test of waste tire granules, cement and soil mixtures, by changing the ratio of tire granules, test results indicate waste tire granules can improve the properties of soil mixtures. The critical content of the tire granules is about 20% at the cement content is constant, when the cohesion and the strength of the mixtures can reach a maximum.
Study on the Changes of Elderly Couple's Living Style and Sustainable Residential Designing
Authors: Lin Wen Jie , Yang Yu Jun , Yu Zhe
Published: August 2013

Targeted at elderly couple's families, this paper analyzes the residence relationship among the elderly couples and focuses on the link between changes in living style and health state of the elderly through the change of the place in which elderly couples sleep, have meals, do daily living and so on. On the basis of the living style characteristics and living demand of the elderly couples, this paper comes up with suggestions for sustainable residential designing for them.
Experimental Study on Mechanical Performances of Magnesium Lightweight Wallboard with Used in Exterior Wall
Authors: Sun Yue Dong , Zhao Jian Chao
Published: August 2013

Magnesium lightweight wallboard is a new kind of building wall materials in recent years. This wallboard has a light weight, and has the advantages of energy conservation and environmental protection, increase the use area of the buildings, easy to install and improve construction efficiency, etc. This paper designs one 1:1 cast-in-situ concrete frame of span 4.5m and net height 3.3m, and embed magnesium light wallboard in it. Applying level force with simulates wind load to the wallboard. In the experiment adopted two wallboards with different thickness and different connection ways with wallboard and frame. During the test observe the development of cracks, measured the horizontal displacement, the cracking load and ultimate load of wallboard. Test results show that the strength and displacement of wallboard can satisfy the requirements of the use of exterior walls, which can be used to building external wall with a certain height.
Research of Producing Aerated Concrete with Quartz Tail-Sands
Authors: Wang Yang , Zhang Jin Song , Wu Shi Yong
Published: August 2013

The paper reports how to use quartz tail-sands to produce aerated concrete block. Through studying hydro-thermal synthesis reaction, gas-forming and performance analysis, satisfied mix ratios and optimal technical parameters are set successfully. The results show that utilizing quartz tail-sands can make aerated concrete production which is in accord with Chinese national standards. It fully reflects the requirements of environmental benefits and building energy efficiency.
Experimental Study on Improving Concrete Carbonation Resistance with Silane Impregnation
Authors: Huang Zhi De , Dong Su Fen
Published: August 2013

Silane impregnation effects on concrete carbonization resistance are systemic researched, through determining blank and silane impregnation specimens carbonation depth, forming 6 mixture ratio cement mortar, treating with silane impregnation and then curing to 30d, 60d, 90d and 180d age naturally. Through XRD microscopic and water absorption test, the improving carbonization resistance mechanisms are analyzed from two aspects including cementations material hydration product concrete pore humidity.
A Cracked-Comminuted Model for Penetration into Confined Concrete Targets
Authors: Zhen Ming , Song Dian Yi , Jiang Zhi Gang
Published: August 2013

Confined concrete is superior to the normal concrete in anti-projectile performance. The concrete filled confining tube of relatively small radius would be in cracked-comminuted stage during the penetrating process of projectiles at relatively low velocity. Based on the linear pressure-volumetric strain relationship and the Mohr-Coulomb yield criterion, a dynamic cylindrical cavity expansion model for the penetration into confined concrete targets with lateral elastic confinement is proposed. Numerical results show that the lateral confinement improves cavity stress significantly, and the radius ratio of target to cracked-comminuted interface has little influnce on cavity stress for relatively low cavity expansion velocity.
The Influence of Linear Architecture Space Structure on Building Evacuation Time
Authors: Xu Hong
Published: August 2013

Building evacuation has always been an important research question for government emergent agencies, architecture designer and building energy-saving researchers. However, most research works focus on the emergency decision theory, psychological reactions of individuals and groups, and evacuation simulation operations. Very few research works have been done to investigate the effect of architecture space structure on building evacuation time. This paper discusses the characteristic of linear architecture space structure in buildings, and analyze the influence of linear architecture space organization structure on the evacuation time in campus teaching buildings. The experiment results show that the combination of separated rooms in linear architecture space structure has a better evacuation efficiency than the combination of only large rooms.
The Anti-Shear Capacity of Abnormal Joint of Steel Reinforced Concrete
Authors: Zhu Jia Ning , Yang Ke Jia , Li Xiao Wen , Li Rui Wen
Published: August 2013

The paper presents an test and computational results of finite element studies on the behavior and capacity of abnormal exterior joints of Steel Reinforced Concrete (SRC) column and Reinforced Concrete (RC) beam. The critical parameters influencing Anti-Shear Capacity are analyzed by ABAQUS, such as the eccentricity of column section, the steel ratio of the joint core zone, the concrete strength and the axial compression ratio and so on. As a result, the Anti-Shear capacity of the joints mainly depends on “the minor joint zone”. The calculating formula of Anti-Shear capacity of the joints, with the computing unit of minor joint core zone, is deduces.
A Study on Energy Consumption and CO2 Emissions According to Manufacture of Recycled Rebar Using Wasted Steel from Building Demolition
Authors: Cha Gi Wook , Hong Won Hwa , Shin Sung Woo
Published: August 2013

In recent year, Korea relies on imports for most of the iron ore, the main raw material of rebar, resulting in CO2 pollution with lots of energy consumption. Hereupon, this study carried out the research on the energy consumption and CO2 emissions of the recycled rebar using the wasted steel from building demolition. For that, this study worked out the energy consumption and CO2 emissions in the process of generation, transportation and production of wasted steel and, on the basis of which, it conducted the comparative study with virgin materials. The major research results are as follows: First, the energy consumption and CO2 emissions of the recycled rebar were found to be highest in the process of its production at 89.2% and 85%, respectively. In addition, in the comparison between recycled rebar and virgin material, the former was found to be most advantageous in energy consumption. On the contrary, as for CO2 emissions, the recycled rebar showed a 88.3% reduction possibility of greenhouse gas (GHG) emissions comparing to statistics of input-output analysis based on competition inducement coefficient, but it was found to be more disadvantageous from the perspective of GHG reduction than the statistics of input-output analysis based on non-competition inducement coefficient.
High Performance of Stone Chippings Concrete with High Fine Content
Authors: Tan Shi Lin , Ding Xin Bang , Jiang Xue Qin
Published: August 2013

In order to make full use of stone chippings, alleviate the contradiction of increased demand and supply shortage of river sand. On the basis of the method of dense aggregate packing, this paper explores a way utilizing stone chippings with high fine content(more than 10% fine content), poor graded crushed stone, grade II flyash and S95 slag powder to prepare HPC with stone chippings 100% replacing river sand. The experiment results show that this mix design method is feasible, and its designed concrete has good workability, high dosage of mineral admixtures, high strength, high chloride ion penetration resistance, low cement content, low cost and so on.
Analysis of the Development of Chinese Commercial Buildings
Authors: Liu Jia Sheng
Published: August 2013

Based on the concept, the development characteristics of commercial buildings in different historical periods in China was summarized: before Song Dynasty, the Chinese commercial buildings mainly referred to simple stalls; after the Song Dynasty, commercial buildings developed with the appearance of restaurants, hotels and some entertainment places; in modern Chinese, commercial buildings showed the trend of westernization. So far, the variety and size of commercial buildings became more centralized and comprehensive. With the appearance of more green and intelligent buildings, the concept of sustainable development is reflected in the design of commercial buildings. The author expects the future of Chinese commercial buildings and provides some reference for the design and development of commercial building in the future.
Strain Analyzing of Concrete Creep of Xiaolangdi Sediment Tunnel Lining over Tensioning and Operation Periods
Authors: Sui Chu Ne , Kang Jing Fu , Wang Xiao Zhe , Xu Xiao Ping
Published: August 2013

Xiaolangdi sediment tunnel is the first waterway engineering used un-bonded circumferential pre-stressed lining in China. Based on data obtained by concrete strain meters over tensioning and operation periods, strain of concrete creep of sediment tunnel lining was analyzed. The results show that concrete creep developed over tensioning period is 26.4% of total strain and 35.8% of elastic strain respectively; Creep strain had a good linear relation with pre-stress and loading time and can be calculated by εc=ασiti , which are agree with the measured results; Over operation period, concrete creep strain can be analyzed by rejecting the effect of temperature and water level from the total strain.
Study on the Influence of Freeze-Thaw on the Carbonation Property of Fly Ash Concrete
Authors: Niu Jian Gang , Yan Liang , Zhai Hai Tao
Published: August 2013

Based on the coupling testing program of freeze-thaw and carbonation, the laboratory simulation test is carried out. The laws of carbonation depth of the fly ash concrete suffered the freeze-thaw cycle in different test modes and the influence of fly ash dosage on concrete carbonation depth after the freeze-thaw cycle are studied. Defining the influence coefficient of the freeze-thaw cycles on carbonation depth of concrete, the mechanism of coupling of freeze-thaw and carbonation is analyzed,and the role of freeze-thaw and carbonation in the coupling process are obtained.
A Study of the Comprehensive Management Mechanism during the Overall Processing of Shenzhen‘s Construction a Waste of Silts from an Ecological Perspective
Authors: Gong Xiao Lan , Pan Jing , Kang Xiao Yong
Published: August 2013

Urban construction works produce wastes of mud, silt and silts. Through an environmental economic analysis of the waste disposal and an investigation of the existing management mode, it can be seen that the managements of those waste in Shenzhen--instead of regarding those as resource--are more for imminent discharges which results in the waste of soil and the pollution of the environment. Based on the idea of ecological sustainability, this paper puts forward a mode for the overall process of managing the construction wastes in Shenzhen, which can be divided into four aspects: reduction at source, optimization of the transportation, comprehensive utilization and efficient disposal. In the end, the paper brings up a management mechanism suitable for the overall process from the perspectives of technology, legislation, management and social awareness.
Design Analysis on Project of Wu River Wetland Park of Linyi Shandong
Authors: Qi Jing Chun
Published: August 2013

According to the analysis of planning and design current conditions of Wu River Wetland Park, the design principle,objective and function positioning can be determined. The most participant wetland park will be built by suing three-dimension layered layout, constructing four functional level,building complete landscape structure and vision analysis, striving to highlight the characteristics of overall structure design.Reframing site texture, the most participant wetland park will be built through establishing a complete ecological system and visual landscape, building perfect recreational network and function nodes.
Study on Fiber Optical Reactor Catalytic Degradation of Oxytetracycline
Authors: Zheng Ying , Gao Lin Xia
Published: August 2013

Antibiotics have played a positive role in human health and. But underutilized antibiotics can’t be removed by normal treatment. The paper study the impact of fiber optical reactor catalytic degradation of oxytetracycline and step to examine the degradation effect. The results show that: temperature increases within a certain range contribute to the degradation of the oxytetracycline. Effects of pH on the photocatalytic reaction were significant, and alkaline conditions is more conducive to oxytetracycline photocatalytic degradation. In the concentration range of the experimental study, oxytetracycline photocatalytic degradation was inhibited by the higher initial concentration. Catalyst promoted oxytetracycline degradation, its addition amount on photocatalytic reaction influence is relatively large, when the pH is 7, with the increase of nano-TiO2 dosage, removal rate was gradually increased. The degradation rate of oxytetracycline in different reaction process can be shown as: photocalysis＞photolysis＞hydrolysis in this research.
Legal Regulation of CCS Technique
Authors: Jing Zhen
Published: August 2013

CCS technology has been concerned generally. Many legal issues are involved in its developing process. Only carrying out the necessary legal regulation can we accelerate the development of CCS technology and its worldwide recognition and popularity. This paper summarized the process of the development of CCS technology, analyzed the main legal issues relating to the technology, discussed the legal regulation of CCS technology and proposed that legal regulation of CCS technology and implementation must be strengthened in China.
Study of Electrochemical Behavior of the Transmission Tower Galvanized Layer in Simulated Acid Rain Solution
Authors: Deng Hua Ling , Sun Qi Lei
Published: August 2013

Using electrochemical impedance spectroscopy (EIS), polarization curve and X-ray diffraction technique, electrochemical behavior of the transmission tower material Q460 galvanized layer was studied in simulated acid rain solution. The results show that: galvanized layers take place local corrosion in simulated acid rain solution, the corrosion products will fill the hole, and cover on galvanized layer surface, the generated white corrosion products mainly ZnSO4 ·H2O.The current generate in the process of corrosion, galvanized layer surface take place electrochemical corrosion. Galvanized layer solution at pH 2.4 and 3.8 of the simulated acid rain in the corrosion process is controlled by the charge transfer process, with the decrease of solution pH value, the corrosion rate increases. Zinc are more sensitive to H+ in the solution, in low pH value of solution, due to the strong hydrogen precipitation process, the zinc surface adsorption of hydrogen bubble around, its dissolution rate is higher than the surface of the other part of the zinc, namely in low pH value of acid rain solution, H+ by depolarization process not only directly accelerate the corrosion of zinc, can through the strong hydrogen evolution process at the same time accelerate the dissolution of zinc.
Construction of Spatial and Temporal Distribution Prediction Model of Patinopecten yessoensis Larvae in North Chinese Yellow Sea
Authors: Zhang Rui Jin , Zheng Qing , Sun Hong Yue
Published: August 2013

A coupled biological-physical model was constructed by a hydrodynamic model and a particle tracking model describing the transportation of the Patinopecten yessoensis planktonic larvae. The model was applied for the numerical simulation to predict the spatial and temporal distribution of Patinopecten yessoensis planktonic larvae in North Chinese Yellow Sea which results agrees with the field investigation data.
The "Efficiency Electric Power Grid Circles" an Ideal Micro-Urban Development Approach
Authors: Tkac Stefan , Vranayova Zuzana
Published: August 2013

Population is concentrated in the major cities which are facing the energy deficiency issues. The unregulated development of micro-urban areas is underestimated in both cases (Slovak Republic and Taiwan R.O.C.) so are the energy issues bound with them. Centralized energy sources require long distance wires to support remote areas.
Research on Loading Test Scheme of Vehicular Bridge-Footbridge Combined Double-Deck Cable-Stayed Bridges
Authors: Yan Meng , Yang Yong Qing , Yuan Yuan , Zeng Xiang Lin
Published: August 2013

In order to check whether the bridge structure is in good working condition, meeting the requirements of carrying capacity and traffic capacity, loading test should be conducted to the Huiketing No.1 Bridge in Mianyang city. The bridge is a double-deck cable-stayed bridge, the upper deck of which works as a footbridge and is connected by 6 chain poles to the lower deck which works as a vehicular bridge. Since the bridge structure is novel, the working stress state is complicated and the coupling effect of the two decks is notable, little referential experience could be found from other bridges. The loading test uses sandbags as equivalent to pedestrian loads on the footbridge and adopts heavy trucks to imitate the design vehicle loads on the vehicular bridge. According to the structural symmetry of the whole bridge and the analysis of its static and dynamic performances in the finite element software, the optimized loading project is finalized. Test methods and analysis results of this footbridge can be used as reference in loading test of similar bridges in the future.
Experimental Investigation of Bridge Grouting Compactibility
Authors: Zhou Yong Zheng , Zhu Er Yu , Yang Jian Min
Published: August 2013

Aiming to solve the problem of hard to fill duct completely, the reasons are discussed. Water-cement ratio and admixture are the main influence factors to bleeding rate. There is a minimum grout bleeding rate when water-cement ratio is 0.38 and admixtures are added. The best treatment measure to grout leakage is to flushing out the grout and re-grouting via the on-site grouting test.
Numerical Analysis for Installation of Horizontal Steel Tie Rod in Inclined-Column Bridge
Authors: Wan Tao , Xi Shu Juan , Zhan Qi Fang
Published: August 2013

The installation of horizontal steel tie rod is a critical step during the construction of RC inclined-column bridges. With the aim to ensure the construction safety and to prestress the tie rod accurately, three construction schemes are simulated using the finite element method. According to the simulation, the reasonable tensioning methods are recommended which created a sound theoretical basis to the selection and improvement of construction method.
Wind Field Numerical Simulation of Long-Span Bridge
Authors: Guo Jian , Gan Wei Chang , Jiang Ding Yu , Sun Bing Nan , Peng Wei
Published: August 2013

In the research on calculation of interaction of wind and structure, the key to the question is wind field numerical simulation. This paper introduces a practical wind field simulation method of long-span Bridge. The main bridge of Jintang Bridge was analyzed as engineering example, which is a cross-sea cable stayed bridge in Zhoushan of Zhejiang Province , and the linear filter method was applied to calculate along-wind and vertical wind field on main girder, MATLAB program also was adopted to simulate wind field of long-span Bridge. The results show that simulated spectrum is in better agreement with the target spectrum, which verifies validity of the method and correctness of the program.
Redevelopment of the Mitsubishi Plant at Tonsley Park Site in Adelaide
Authors: Hu Yan
Published: August 2013

The Mitsubishi plant at Tonsley Park site had been closed in Adelaide. Determining how to reuse the site and how to redevelop the economic became important problems. The history and existing conditions of the site were introduced. The advantages and disadvantages of this site were analyzed to redevelop the district and reuse the old industrial buildings. The Adelaide government planned to change it into a renewable energy hub. Hopefully the paper can bring some enlightenment and inspiration for those who are facing similar conditions.
Wind Tunnel Experimental Research on Flutter Stability of Liujiaxia Bridge
Authors: Shu Chun Sheng
Published: August 2013

Liujiaxia Bridge is a truss stiffening girder suspension bridge which span is 536m, and it is the narrowest suspension bridge with the same scale, so the problems of flutter stability are prominent. Results of wind tunnel test show that its critical velocity cannot meet the requirements without any aerodynamic measures. Based on above considerations, seven kinds of aerodynamic measures are proposed, respectively wind tunnel tests are conducted. The results show that the program, in which the upper central stable board is 1.12m high and the under central stable board is 1.28m high, can meet the requirements. The results of this study provide some references to solving the problem of wind-resistant stability of narrow deck suspension bridge.
Research on Damage Detection and Calculation for Reinforced Concrete Bridge Piers
Authors: Lei Chun Xu , Pu Qin , Yang Yong Qing , Jiang Ji Jian
Published: August 2013

In order to reduce the potential threat to the Guanyindian highway bridge caused by the damaged RC bridge pier, some damage detection methods including surface inspection, core-drilling test, ultrasonic-rebound test and verticality measurement are used to assess the bridge’s damage condition. The finite element analysis software is employed to simulate the damaged bridge pier and to calculate its bearing capacity, thus providing technical data for the repair and future maintenance of the bridge pier. According to the results of damage detection and calculation, the verticality, the concrete strength, the bearing capacity and the crack width of the damaged No.1 bridge pier could meet the code’s requirement but the damaged regions on the bridge pier need to be repaired.
Energy Method for the Calculation of High-Pier's Effective Length Factor at the Finished Stage
Authors: Liu Peng , Rui Jie , Lei Bo , Zheng Fei
Published: August 2013

This paper establishes the shape function of high-pier with non-ideal boundary conditions in the top and uses the energy method to calculate its critical load. Then its effective length factor is achieved by using Euler's formula. Further, the FEM and energy method are respect used to calculate the effective length factor of the engineering example and comparative analysis is carried on. Results show that: The non-ideal boundary conditions have great influence on the effective length factor and should be considered in the calculation. The result from the formula of energy method is nearly the same as the one from the FEM which demonstrates this method is of good accuracy to calculate the effective length factor of high-pier. In addition, it is also of great convenience in the design of high-piers.
Research on Fuzzy Comprehensive Evaluation of Cable-Stayed Bridges
Authors: Ren Yuan , Tang Hai Hong , Huang Qiao
Published: August 2013

As bridge span increases, people have growing concern on bridge safety and durability. The fuzzy comprehensive evaluation was introduced to assess complicated cable-stayed bridges. The calculate approach of fuzzy comprehensive evaluation was introduced first. Using the representation proposed by Professor Zadeh, the membership degree of the bridge technique status was described. The membership function of comprehensive evaluation for cable-stayed bridges was established by fuzzy statistics method. The application problem of model in the comprehensive evaluation for cable-stayed bridges was discussed, and the model was established in the composite calculation procedure of fuzzy sets. The fuzzy comprehensive evaluation theory was applied in the evaluation of the Sifangtai Cable-stayed Bridge as an example and the final results was basically consistent with that of the uncertain AHP method. It can be concluded that the theory can apply to the comprehensive evaluation of cable-stayed bridges.
Construction Safety Control and Management on Extra-Large Underwater Caisson in Taizhou Bridge
Authors: Liu Xiao Yong , Wang Xin , Zhang Er Qiang
Published: August 2013

The new-type structure of "three towers of two-span" suspension bridge with the main span of 2×1080m is put to use in Taizhou Bridge. The foundation of Middle Tower adopts an extra-large underwater caisson structure with the three dimension size about 58m×44m×76m, which has been so far the deepest underwater caisson in the world. The caisson is divided into two sections, that is, Steel Caisson on the bottom and Concrete Caisson on the top. The underwater positioning, landing of Steel Caisson and the height addition construction of Concrete Caisson are of great construction difficulties and thus brought high safety risk. In this paper, Taking Taizhou Bridge as background, the safety control technology and management of underwater caisson construction is presented, which can play a good reference for similar projects.
The Corrosion Prevention Research of Long-Span Non-Uniform Continuous Steel Bridges
Authors: Li Zi Lin , Ding Hong Yi , Du Yi , Xue Jiang
Published: August 2013

As its good mechanical properties, steel bridge has been widely used in modern highway, railway and urban bridge construction, but its corrosion protection is also a major issue. This paper studies the types of corrosion, the methods of anti-corrosion and focuses on coating protection--the most promising anti-corrosion method currently. It proposes some improvement measures for the corrosion protection, and has a certain reference value for the design and construction of such bridges.
A Study on Integrated Condition Assessment System for Bridge
Authors: Li Ming , Yi Zi Lin , Wang Yang
Published: August 2013

This paper mechanically applies the thought of recursive hierarchical structure in analytic hierarchy process, by means of fuzzy mathematics, with the investigation, analysis, induction, the fuzzy relation matrix has been found, at the same time, the assignment weight of index is merged into that. Then the integrated condition assessment results of bridge are gained finally. This method greatly reduces the happening of ill-considering the influencing factors, make the results more real, specific and comprehensive, avoid effectively great loss which is caused by the defects of safety and service performance.
The Crack Limit Analysis Based on the Fracture Mechanics of the Main Arch of the Stone Arch Bridge
Authors: Zhang Le Fei , Yi Zi Lin , Deng Yong Jun
Published: August 2013

This paper is based on fracture mechanics to calculate the arch bridge crack spacing circle and the stress intensity factor. Then the relation between the cracks spacing limit problem is calculated. And stress intensity factor relations under the same crack length and the same pull force is discussed. Finally the analysis shows that the height of the fracture cracks into the crack width as the impact factor is feasible.
The Technology of Determining Durability Index in Integrated Condition Assessment for In-Service Bridges
Authors: Wang Bing , Li Guo Ming , Rui Jie , Wang Zong Ren
Published: August 2013

In this paper, it is on the basis of gaining the main influence factors of durability for in-service bridge, using recursive hierarchical structure of analytic hierarchy process, constructing the assessment models about durability for in-service bridge in bottom, middle and top levels, combining with weight modify technology and fuzzy mathematics theory, the assessment results durability state is gained finally. It can discriminate using actuality of bridge effectively, and it has been a good guide for maintenance of bridge by practical test.
Theoretical Model and Mechanical Performance of Semi-Integral Abutment Jointless Bridge
Authors: Wang Tian Li , Li Qing Ning , Hu Da Lin
Published: August 2013

Expansion joint of a bridge is a weak part of structure, it leads to early structure destroy and reduces the bridge life. The paper put forward a new type of Jointless Bridge --- Semi–Integral Abutment Jointless Bridge, and its theoretical model was built. An engineering of four spans 100m length Prestressed Concrete Semi–Integral Abutment Jointless Bridge was analyzed, and results that its mechanical performance is so excellent that it should be wide applied in bridge engineering.