bluuebunny/crossref_metadata_2025 huggingface dataset:
Low-Tech Urban Solutions in Data-Based Environment – A New Concept of Sharing-Oriented Metropolitan Transportation
Authors: Dulinski Wojciech J.
Published: March 2015

This paper presents the new, theoretical idea for a short range, city transportation system typology. Taking people’s expectations as a major concern, the idea aims to improve travel comfort by creating a sustainable and efficient system of communication. The short review of various visions for cities development, as well as analysis of current research are presented as a background for the new solution. Then, the analysis of present, data-based environment indicates a high level of society’s dependency on the Internet and Mobile connections. Finding a strong relation between transportation and IT sector, the paper exposes the necessity of interdisciplinary approach towards innovative communication solutions. Questioning the current model of ownership-oriented society, the proposal introduces a shift towards sharing-oriented tendencies. On that basis, idea of the system of shared between users, self-driving vehicles is established. Moreover, architectural intervention into traditional street typology is introduced. Vertical division of separate functions, allowing unobstructed flow of people and vehicles, creates a possibility to adopt existing street level for accommodating additional functions. By incorporating theoretical model into the city of Singapore, certain decisions about combining newly designed idea with existing underground MRT system infrastructure were stated. Putting stress on the holistic, multidisciplinary approach to the idea of future mobility, it is inevitable to introduce various fields of research into the process. Only by connecting administrative decisions, architectural statements and technology (IT) development can a coherent vision of future be proposed.
The Analysis of Cars and Pedestrians Collision Based on the PC-Crash Program and MADYMO Simulation
Authors: Li Hai Bin , Li Jiang Jiang
Published: March 2015

Based on the coupling of PC-Crash program and MADYMO software, thekinematics laws of pedestrian in the contact process for automobile-pedestrian collision are analyzed through modeling and simulation by establishing vehicle model and pedestrian model, and selecting main influencing factors on contact phase as independent variables for simulation tests.
Numerical Analysis on Mechanical Properties of Beams Reinforced by CFRP Laminates
Authors: Zhuang Ning , Sun Hao Dong , Ge Song
Published: March 2015

Carbon Fiber Reinforced Plastic (CFRP) has been widely used in large-scale concrete infrastructure’s reinforcement and renovation because of its low weight and high strength, which promotes CFRP application in the field of civil engineering. This paper two aged beams reinforced by CFRP sheet was loaded to failure in four-point bending by laboratory experiment. Then the numerical model was built to simulate the destruction process and compared with test results. Based on the studying of this paper, the changing law of beam’s stress, ultimate bearing capacity growth, failure mode and cracking propagation was investigated during the loading process. The research has guiding significance for the design and construction of concrete structures reinforced by CFRP laminates.
Vehicle’s Model Classification Using a Vertical Stereo Camera
Authors: Lee Chi Hak , Ahn Jong Pil , Kim Young Mo
Published: March 2015

This paper proposes a method of vehicle’s model classification based on stereo vision. First, we find features that horizontally separated shape of vehicle are selected because of coming into view well after matching. After extracting a side outline of vehicle using a vertical stereo camera, vehicle is classified with normalized vehicle’s front-side image. As a result of experiment, our method shows an improved 1.62 [%] compared with a method using a vehicle’s front-side image only [6].
Relationship of Traffic Complexity and Pilot-Controller Voice Communication Load
Authors: Huang Jun Xiang , Wang Hong Yong
Published: March 2015

A multi-factor linear regression model was developed to describe and estimatepilot-controller voice communication loads. The routinely-recorded air traffic control data andassociated voice communication data were collected to statistically analyze the correlation betweencomplexity factors and pilot-controller voice communication loads. Results show that each complexity factor is significantly correlated with voice communication loads. To eliminate multicollinearity among complexity indicators, principle component analysis is performed to extract two principle components from complexity indicators. These variables were used to construct the multivariate regression equations of the communication durations, the communication frequencies, and the integrated voice communication load index. These equations can quantitatively describe and estimate air traffic controller’s voice communication loads.
Research on Application of Pedestrian Throw Distance Formula in GA/T643-2006
Authors: Liu Fu Ju , Li Fu , Hu Xiao
Published: March 2015

Based on CIDAS's resources of accident video data recording vehicles and pedestrians, this paper focuses on utilizing video image based calculating methods to research on application of pedestrian throw distance formula in GA/T643-2006.Our study shows that the results calculated from the pedestrian throw distance formula are partly inaccurate compared with actual car speed in cases that pedestrians are thrown after first collision with cars, and barely accurate to reflect the actual car speed in cases that pedestrians are thrown after second collision with cars. Therefore, it requires further adjustments on parameters identification and application scope of the pedestrian throw distance formula.
Study on Cooperative Control Method among Large Flow and Long-Distance Intersections
Authors: Lu Jian , Gu Jin Gang , Fu Qiang , Li Ya
Published: March 2015

Large flow and long distance intersections are very difficult to bring out coordination control and very easy to emerge traffic problems such as traffic congestion due to the large flow and long distance and traffic discrete. It’s necessary to analysis the traffic flow characteristics among large flow and long distance intersections and take measure to improve the signal control. This paper analyzed the traffic flow characteristics of the large flow and long distance intersections, such as the speed would be faster than the normal road between near distance intersection, the headway between cars would be increased, and long traffic queue would be easily occurred at the downstream intersection. In order to realize the coordination control between far intersections, measures for example puts forward signal light at an appropriate position between the intersections, set up fences between vehicles and bicycles, and intersection channelized were put forward to rebuild the traffic flow to adjust the signal control. Those measures were applied to the intersections in Danyang which located in Jiangsu province, the results shows that the queue length was reduced by 67.4% at downstream intersection, the average delay was reduced by 60.3%, the traffic flow saturation was reduced to0.67, and the travel speed and travel time would all become better than before. It suggested that those methods could realize the coordination control and its effect was good, and have good feasibility and practicability.
Vehicle-Pedestrian Accidents Characteristic Analysis and Study
Authors: Bu De Jun , Liu Fu Ju , Lin Miao
Published: March 2015

This paper summarizes the character of vehicle-pedestrian accidents based on the statistics and analysis on the data of vehicle-pedestrian accidents selected from China In-Depth Accident Study (CIDAS) database. Pedestrian Accidents Characteristic is analyzed and studied. It has great significance for improving vehicle safety.
The Study on Urban Rail Transit Train Operation Simulation System Based on Timetable Control
Authors: Xu Fan , Han Bao Ming , Yin Hao Dong
Published: March 2015

This paper establishes a modular urban rail transit train operation simulation system through the application of the train dynamic model, train tracking model in moving block system and timetable in train operation simulation. Then the framework and simulation process of simulation system are designed. Train operation simulation module, data management module and graphical display module make up the simulation system. Based on the structure and working principle of the Communication Based Train Control (CBTC), the key functions of train operation control simulation are specifically design. Finally the Line 4 of Beijing Subway is taken as a simulation example.
A Comparitive Analysis of Stop/Go Driving Behavior during the Amber Light at City Signalized Intersecdtions
Authors: Ding Yao Xian
Published: March 2015

This paper investigates the relationship between the driver’s stop/go behavior when encountering signal change from green to amber and traffic parameters of each car arriving at the intersection during the amber light. The data was collected from two intersections (one is high speed the other is low speed) both located in Beijing with video camera for a period of two weeks. 462 samples are extracted from the video using the software Adobe Premiere Pro CS4. Each sample include the stop/go decision, vehicle’s yellow onset speeds, vehicle’s yellow onset distance from the intersection, position (leading/following) in the traffic flow, vehicle’s speed, amber light time when vehicle travel through the stopline. The line regression technology and decision tree model are respectively used to analyse the difference of influence of traffic parameters to stop/go driving behavior between the high speed and low speed intersections. And it is clearly observed that the dilemma zone at low speed intersection is a little wider than that at high speed intersection althouth the averge arriving speed is lower. And the decision tree model result shows that parameter location play the most important role in sotp/go decisions, and parameter speed only works when the car falls into dilemma zone.
Study of the Influencing Factors of Urban Rail Transit Travel Behavior: A Case Study of Xi'an
Authors: Wu Yao , Lu Jian , Chen Yue
Published: March 2015

In order to study the factors influencing urban rail transit travel behavior, a questionnaire was conducted for residents’ selection of rail transit in Xi'an. Based on the collected data from 1105 valid questionnaires, a binary logistic regression model was established to analyze the influencing factors quantitatively. The results showed that seven factors have statistically significant for rail transit travel behavior including age, occupation, family income, average monthly household transportation costs (T-cost), travel purpose, travel distance, and travel time. Odds ratio analysis revealed that young people and staff were more likely to choose rail transit; the probability of selecting rail transit increased with the increase of family income and the T-cost. In addition, more and more people tend to rail travel with the increase of travel distance and travel time.
Study on Left-Turning Traffic Flow Characteristics under Different Pedestrian Violation Rates at Signalized Intersection
Authors: Wei Chang Hai , Wang Yu Huan , Wang Xu
Published: March 2015

Conflicts between left-turning vehicles and pedestrians are common at signalized intersection in most developing countries. A new cellular automaton model is proposed to characterize left-turning traffic flow. New status update rules and driving behavior in affected areas and nonaffected areas are defined. Indexes of density, average speed and volume under different pedestrian violation rates are compared to quantify the impact of conflicts on left-turning traffic flow. Simulation results illustrate that pedestrian violations have a great impact on left-turning traffic flow and capacity of the intersection. Therefore, taking countermeasures will improve vehicle maneuvers, reduce the number of pedestrian accidents and increase the capacity of the intersection.
Study on Method of BRT Transportation Station Passenger Flow Forecast with the TOD Mode
Authors: Guo Zhong , Wu Hong Yang , Yang Chu Han
Published: March 2015

Transit Oriented Development (TOD) is a pattern of intensive land use within Sustainable Development Strategy. BRT Transportation Station is an important part of TOD model, and this paper try to link the TOD model to transit passenger flow forecast. Closely connecting different factors of BRT transportation station, three kinds of Urban Public Transport Hubs were put forward based on TOD. The manner and process of terminal passenger flow forecast were designed based on the study of current passenger flow scale and characteristics in the hub.
Study on the early Warning Index System of Traffic Hidden Trouble Points in Extreme Weather
Authors: Sui Li Ying , Chen Zhi Hong , Wang Li Xun , Li Wei , Liu Hao
Published: March 2015

The extreme weather (such as rain, snow, fog etc.) will cause many traffic hidden trouble points, bring huge influence to traffic safety [1]. The paper is based on the logic relation between many monitoring data and traffic hidden trouble points, build the early warning index system of traffic hidden trouble points in extreme weather, and better serve for traffic security and public travel.
Urban Green Corridor Planning
Authors: Xu Xi , Ni Yi Lan , He Jiang
Published: March 2015

This paper analyzes the deficiencies and development constraints of the present non-motorized traffic in China. Integrating urban non-motorized lanes, urban landscape belts, urban ecological corridors and urban evacuation routes, the idea of constructing urban green corridor is proposed in this paper, following by preliminarily analyzing the planning objectives, strategies and effects.
Numerical Simulation of Joint between Concrete-Filled Square Steel Tubular Column and Steel Beam on Seismic Behavior
Authors: Li Nan , Zhang Dong Ning
Published: March 2015

A type of joint between Concrete-filled Square Steel Tube columns and steel beam is proposed in this paper, Based on joint experiment, appropriate material stress-strain relations and failure criteria are proposed, numerical simulation by finite element program is conducted under monotonic and cyclic loading and the seismic behavior of the joints under low-reversed cyclic loading is researched. Through the data contrast, it is proved that this type of joint has nice seismic behavior.
Evaluation Index of Urban and Rural Road Passenger Transportation Integration
Authors: Zhou Yi Ming , Lian Jia , Pang Qing Ge , Wang Xian Guang
Published: March 2015

To understand the process of passenger transportation on the urban and rural roads accurately, objectively and reasonably, this article in six aspects of the station yard layout, line network, operation management, service level, fiscal policy and technical equipment, constructing a multi-level evaluation index system of complete.
Evaluation of Subway Station Information Using KANO Model
Authors: Xu Liang Jie , Wang Guan Yun , Liu Qi Yuan , Zhao Wei
Published: March 2015

In order to acknowledge passenger’s satisfaction degree of subway station information and improve subway station service level. This paper analyzes passenger’s information requirement in subway station, using KANO model to evaluate subway station information. And at last show an example of Wuhan Zhongnan Road subway station, analyze passenger satisfaction degree in subway station.
Research on Development Strategies of China Urban Public Transport
Authors: Wei Ling Hong , Chang Cheng Zhi , Wei Ping Hong
Published: March 2015

Firstly,this research report analyze the environment of China urban public transport development and problems of urban transport development, based on showing urban public transport development in China in recent years,reflecting the characteristics of urban public transport development level;Thirdly,the Chinese Government taken the important initiatives in traffic congestion and the urban public transport development;And get the urban public transportation development strategy under the new situation.This report covers bus and trolleybus, urban rail transit and urban public transport areas.This research report provides information of China Public Tansport development to public, supports urban transit policy-making process and the administration for the industry, as well as research purpose and enterprise development.
Research on Passenger Travel Model Choice in Shenyang-Dalian Transport Corridor
Authors: Zhao Wen Rui , Zhao Yu
Published: March 2015

The thesis takes Shenyang-Dalian passenger corridor as the research object. It used the utility function and logit model to analysis the choice of ways of passenger travel systematic. Using transcad software to build logit model to calculated the parameters of the utility function of three kinds of mode of transportation, and Through the utility function to calculate the probability that the three kinds of transport mode is selected. Finally according to analysis results which will be given to improve transport efficiency measures in Shenyang-Dalian passenger corridor.
The Shortest Path Problem Research Based on the Green Traffic
Authors: Liu Bao You , Jin Nan Xi
Published: March 2015

"Advocate the low carbon travel and create the green traffic" is a hot topic in today's society. In order to explore the optimal travel route in 13 China football association super league cities, an operational research model based on the shortest path problem was put forward and resolved by Lingo 11.0 software. The study indicates that the shortest distance traveling each China football association super league city in order in ideal transportation conditions is 9596.000 km. While, considering the traffic restriction of Beijing-Shijiazhuang highway and Beijing-Tianjin highway, the optimized shortest distance is 9693.000 km. This study has a certain practical significance in solving transportation optimization problems in real life.
Research on the Industrial Architecture Heritage of the Key Construction Projects of Jilin Province during the 1st Five-Year Plan Period
Authors: Mo Wei , Zhao Jin Shan
Published: March 2015

The 156 projects of Jilin Province contained a large number of socialist industrial architectural heritage, while its key construction projects represented better function continuity, with the planning and construction of each plant deeply reflecting the characteristics of the industrial city. In today’s high-speed process of urbanization and industrial transformation, a lot of valuable industrial heritage is facing severe situation. This article thus makes a survey on the conservation of the industrial heritage from the development and evolution of these 156 projects so as to provide background information and basic references for the conservation planning in the future.
Reinforced Concrete Structure of the Puppet Theatre in Ostrava
Authors: Čajka Radim , Burkovič Kamil , Mateckova Pavlina , Sekanina David , Stara Marie , Jurcikova Anezka
Published: March 2015

The annex building for the alternative scene in the Puppet Theatre of Ostrava was designed and constructed as an interesting structure from raw face concrete. The size of the annex building is not so big. It is, however, distinct in terms of the shape and complexity. The annex building consists of the above-ground and underground parts and the outside amphitheatre. The above-ground part consists of a reinforced concrete monolithic structure with five floors. The façade is made from raw face concrete. The underground part comprises two underground floors and an inside amphitheatre which is connected to the outside amphitheatre. The paper describes the process and bottlenecks in the design and construction of the building which is interesting in terms of architecture and construction.
Simulation Analysis of Passenger Streamline in Wuhan Railway Station
Authors: Xia Yang , Wei Yu Guang
Published: March 2015

Based on the analysis of passenger streamline in Wuhan Railway Station and according to characteristics of function location layout and passenger streamline distribution, this paper simulates the passenger streamline of the elevated layer of Wuhan Railway Station by Anylogic micro-dynamic simulation software, setting up a dynamic simulation environment model of passenger streamline organization and designing a simulation process. Based on the parametric statistics analysis of the queue length of main equipment on the elevated layer (such as ticketing system equipment and safety inspection system equipment), this article put forward optimization scheme of the reasonable disposition of the customer service equipment and provide a basis for decision of practical operation management.
A Quantitative Research of Spatial Feature of Core Area in Qujiang
Authors: Zhu Shan Yao , Zhai Bin Qing
Published: March 2015

Based on the spatial syntax theory, this research focused on deteriorate of spatial feature of a core area in Xi’an Qujiang in which space alteration heavily influenced by architecture heritage. After comparing the quantified feature degree in 2000 and in 2012 and explaining the social phenomenon, the problem of failure to create a striking core area in Qujing which highly invested has been resolved from the space-configuration perspective. Not only buildings, landscape and consumer items, but also the space-configuration can influence people’s assembling and parting and further control the appearing of spatial feature. As a result, improving spatial feature by the way of adjusting space configuration has been proposed.
Inspirations to the Construction of Chinese Cities from City of Waterloo – Garden City of the 21st Century
Authors: Zhao Hui  Yan
Published: March 2015

Face of China's urban problems, we have been thinking how to build a healthy and livable city. The City of Waterloo in Canada, a modern version of Garden City, has given us some inspirations. Briefly summarize the situation of Garden City and the City of Waterloo, analyze detailed why we say the City of Waterloo is Garden City of the 21st century, and point out that they are the same in essence, which is a city with the advantages of both town and country. It shows that it is not impossible to build a healthy and livable city with both advantages in the contemporary. Finally, give a clear explanation of inspirations to the construction of Chinese cities from the City of Waterloo. The inspirations are the followings. The layout of city should conform to the nature; City should give priority to green traffic; Urban commercial, culture, and other service facilities may lay out with appropriate centralized and decentralized; Open Space should retain appropriate original landscape.
The Comparative Research on International Low Carbon Sustainable Residential Assessment Systems
Authors: Ji Ling Feng
Published: March 2015

The low carbon sustainable residential evaluation system devotes to saving energy, reducing emission, and optimizing the living environment, which plays a key role in coping with global warming and the sustainable development of human. It was introduced and analyzed comprehensively the most representative international residential appraisal systems—British Code for Sustainable House, American LEED, Japanese CASBEE, Chinese Evaluation Standard for Green Building and Chinese Ecological Residential Assessment Manual from the aspects of development process, evaluation content, evaluation software, evaluation system marketization, public education and so forth. It was also analyze the advantages and limitations of those residential evaluation systems, and put forward the problems of the present Chinese low carbon sustainable residential assessment system and the measures to improve the future low carbon sustainable residential evaluation systems.
Application of Energy-Saving Technology for Public Building Design
Authors: Zhang Yin Hui , Yan Qin
Published: March 2015

Energy-saving technology has developed with the rapid development of economy in our country. Experts pay more attention to the construction of green environmental protection of energy conservation and emissions reduction in the process of urbanization. The public building is an important part of architectural design. It promotes social progress and innovation. It is not only saving the resources, alleviating the energy crisis, but also improves people’s life quality for using energy-saving technology in public construction projects. We can improve the overall quality of construction projects and reduce the waste of resources in public construction projects. Based on the case of the cultural center of Shanghai Expo, we analyzed its energy saving technology and summarized the application of energy-saving technology in the design of public buildings in China.
Development Analysis and Policy Suggestions for Energy Saving Systems of Building
Authors: Wang Jie , Li Jing Fei , Li Yu Jia
Published: March 2015

Construction industry consumes a high quantity of energy. In order to effectively reduce energy consumption and comprehensively promote the energy conservation of this industry, corresponding governmental policies are required for restraint and guidance. Through the study of the infancy, development and intensification of energy conservation policies in construction industry, this paper analyses the effects and defects the policies at those diverse stages, discusses the development policies which has promoted energy conservation in China’s construction industry, and proposes specific suggestions for policy making, which help ease the tense relationship between economic development and energy shortage, and realize the sustainable development of construction industry.
Development and Study of Green Ecologlcal Residence
Authors: Zhang Bo
Published: March 2015

The urbanite are very anxious to back to nature and more contact with nature because of worsening environment and instant lift, which are caused by the development of human society and the progress of science and technology. The green ecological residence can meet people's requirement for material function, physiological function and mental function in design, construction, management, clean energy, energy saving, environmental protection, comprehensive utilization of water resources, etc. The balance between human and nature should be achieved.
Oxygen Transfer through Air Entrainment over Stepped Weir
Authors: Kim Jin Hong
Published: March 2015

Oxygen transfer through the air entrainment over the stepped weir by the flow types was presented through the laboratory experiments. In the nappe flow, dominant flow features included an enclosed air pocket, a free-falling nappe impact and subsequent hydraulic jump on the downstream step. Most air was entrained through a free-falling nappe impact and a hydraulic jump. In the skimming flow, air entrainment occurs from the step edges. Downstream of the inception point, the flow is highly aerated at each and every step with very significant splashing. The average values of the oxygen transfer efficiency in the region of the nappe flow and of the skimming flow are about 0.40 and 0.28, respectively. The stepped type of the weir was found to be efficient for water treatment associated with substantial air entrainment.
Research on Green Building Evaluation Index System under the Guidance of Government Based on ANP Method
Authors: Yang Wen Ke , Deng Yi , Wu Xing Li , Xiang Yu Lu , Chen Chao
Published: March 2015

Combined with the development status of the green building industry in our country, this paper builds the evaluation index system of green building, and explores the network relationship among the indexes by introducing the network level analysis method, obtaining the weight coefficient of the different level index. Then on the basis of the weight size of each factor it determines the influence degree of each index on green building evaluation index system and the primary factor which has a great influence on green building evaluation index system, so as to provide the basis to find out the green building evaluation index system adapting to various types.
Research on Techniques of Reducing the Life Cycle Carbon Emission at Building Design Stage
Authors: Ou Xiao Xing , Li De Zhi
Published: March 2015

Constructing low carbon building is inevitable at low carbon economy era. Design is a dominating influence in building life cycle. To design low carbon buildings, this article studies some reasonable design techniques. The article analyses relevant professions of design and puts forward the main techniques and methods during building design stage for reducing carbon emission. These techniques are critical to building life cycle.
Testing and Analysis on Thermal Performance for Prefabricated Thermal Insulation Composite Wall Panel of an Office Building
Authors: Ren Zhen , Li Rui , Wu Xin Yu , Wang Li Xin
Published: March 2015

The main objective of this study is to explore prefabricated thermal insulation composite wall’s thermal performance in the project. Using infrared thermal imager and multi-point heat meter takes a test on office building envelope. The test results showed that the composite wall temperature change delay of 3 hours 12 minutes, the temperature change attenuation of 2.5 °C; The composite board exterior wall surface temperature attenuation is larger and the thermal stability of the structure is perfect; thermal bridge is the main reason for reducing the average thermal resistance of the wall.
The Implement Recommendations of Energy Alternative Strategy in Liaoning Province
Authors: Ge Dan , Liu Xin Yu , Gao Bai Yu , Wang Tong
Published: March 2015

Energy scarcity, environmental protection and the development of economic is the inevitable issues in modern society. Take a low-carbon economy and energy conservation is the only way to coordinated between the three. Thus, To implement energy alternative strategy is imperative in Liaoning Province in terms of considering the grid smart, surplus, economy, which can guarantee the implementation of energy alternative. Therefore, in the process of implementation of energy alternative, it is necessary from the perspective of business and government to develop specifically safeguards and systems.
The Investigation of the Design of Natural Ventilation in Croquet Stadium Haicang Sports Center
Authors: Xiang Yu Ming , Guo Jing Quan
Published: March 2015

This essay uses Croquet stadium in Haicang Sports Center as an example of the hot summer and warm winter architecture of passive energy conservation, analyzes and summarizes design philosophy, applied technology, design practice and energy saving effects. This essay also investigates utilizing the passive architectural design of low technology from designing method to achieve the purpose of building energy conservation.
The Urban Complex Energy Saving Effect Research
Authors: Wang Yue , Zhang Xin , Liu Jing Fu
Published: March 2015

With the increase of population and the acceleration of urbanization, simple function and single develop commercial real estate can't satisfy the people's city life needs for the city whose land resources are scarce. Urban form began to spread from the extensive type to intensive transition. The urban complex as city entity set variety of urban space and architectural space at a suit is a product of urban development to a certain period, and it is the necessity of the development of urban economy. This article discusses the urban complex energy saving effect from the economic benefit, environmental benefit and social benefit three through the city synthesis theory research, thus further provide theoretical and practical basis for development of urban complex.
Research on Application Issues of Structural Health Monitoring System Based on Optical Fiber Sensing Technology
Authors: Meng Fan Yong , Jia Li Min , Shen Xiao Huan , Dong Jun Wei
Published: March 2015

Introduced the development situation and trend of structural health monitoring, discussed the advantages and insufficiencies of application issues of the structural health monitoring system based on optical fiber sensing technology, combined with engineering case, analyzed the sensors’ survival rate, system reliability, temperature compensation and some other issues, according to the specific problem proposed the corresponding solutions or concrete measure.
Allocation of Professional Oil Recovery Ships Based on the Center of Gravity Method
Authors: Ding Wang Ping , Zheng Peng Jun
Published: March 2015

Professional oil recovery ships are large oil response equipment which can be shared by several terminal owners in a region in order to save money and energy. The locations where the professional oil recovery ships be placed are directly related to the time they arrive at the oil spill accident spots. This paper aims at finding appropriate locations for professional oil recovery ships to minimize time of reaching the destination by considering the oil spill risk of the terminals and the channels. The center of gravity method is used in this paper when determining the locations of the professional oil recovery ships.
Analysis of the Construction of Qilihai South Pumping Station’s Ecological and Environmental Impact on Qilihai Wetland
Authors: Xu Sheng Guo , Qu Jin Feng , Dong Fang Qing , Chu Chun Li , Jiang Gui Mei , Ju Mei Ting
Published: March 2015

The construction of water conservancy project will inevitably have some impact on the surrounding ecological environment, while construction of the water conservancy facilities is indispensable for the full play of wetland ecological function. It involving how to avoid damage to the local ecological environment in the process of large-scale water conservancy construction has become an important problem that construction of China's water conservancy project has to face.This paper analyses the construction of Qilihai south pumping station’s ecological and environmental impact on Qilihai wetland to give an example for the impact of water conservancy project.
Soil Pollution Research Based on Factor Analysis Method
Authors: Qiu Zhi Tao , Wu Yue , Zheng Chen
Published: March 2015

The cause of heavy metal contamination in urban topsoil is discussed. Use factor analysis method on a single factor pollution index matrix,to screen three common factors whose accumulative contribution rate accounts for 95%, and then analyze coefficients of the rotating component matrix, and extract several heavy metal elements significantly associated with common factors for a comprehensively analysis of the cause of contamination.The results are as follows: the first common factor is significantly correlated with heavy elements Hg, Cu and Cd, whose main cause is industrial pollution; the second common factor is significantly correlated with heavy elements As, Pb and Zn, whose main causes are traffic pollution and industrial pollution; the third common factor is significantly correlated with elements Cr, Ni and Zn, whose main causes are domestic pollution and industrial pollution.
The Experimental Research on the Start-Up and Stable Operation Phase of ANAMMOX System
Authors: Wei Chen , Song Li Jing , Zhao Yi Ran , Song Ling Mei
Published: March 2015

The purpose of this experiment was to study the inoculation and start-up, domestication and cultivation of ANAMMOX system and the stable operation after the successful start-up. The experiment used the activated sludge SBR reactor and artificial raw water. The inoculated sludge included nitrification sludge, anaerobic sludge and garden soil exudate. The ANAMMOX s ystem was s uccessfully started on the 114th day after the inoculation. The removal ratio of NH4+-N, NO2-, and NO3- -N mostly was 1:2.8～3.6:0.2～1.8. It could be inferred that in addition to Anammox phenomenon, there was other denitrification process without the participation of external carbon sources in the system In the stable operation period, the sludge was flocculent, and the flocs were dispersed, irregular shaped. The sludge was mixed with a large number of red, dark red particles.
Research on Design and ANSYS of Joints between Steel Beams and Reinforced Concrete Columns
Authors: Chen Xi
Published: March 2015

Environmentally sustainable building construction has experienced significant growth during the past 10 years. The public is becoming more aware of the benefits of green construction,and green building is leading to changes in the way of owners, designers, contractors, and approach of the design, construction. A new type of frame consisting of steel beam and reinforced concrete column (RCS) installing efficient and light heat insulation wall has been presented in composite frame. The composite frame fully develops the merits of steel and concrete, and thus is reasonable and economical from both structural and construction viewpoints. The chief aim of the present work is to establish the design procedures for RCS joints based on the existing standards in china. The research has recorded valuable experimental data using the method of the nonlinear three-dimensional ANSYS finite element.The research work introduces an amended design formula,which takes account the effect of ratio of axial compression stress to strength. Some effective design suggestions are given as a reference to the structural engineer.
Comparison of Stability and Deformation Performance of Cable-Braced Grid Shell with Different Section Forms of Steel Tube
Authors: Zhang Zhi Ying , Zhao Xun , Wei Hong Yang
Published: March 2015

Cable-braced grid shell is a hybrid structure combined rigid steel tube and flexible cable. The paper presents the variation law of stability and deformation performance of cable-braced grid shell with different section forms of steel tube, as section of cable, prestress of cable and span-to-height ratio vary. Economic and reasonable section form of steel tube is proposed as a reference for the practical engineering design.
Corrosion Protection Technology of Steel Structure in Marine Environment
Authors: Gao Xin , Guo Li Zhi , Xiong Jian Bo
Published: March 2015

Harbor projects have to face harsh marine environment, and the corrosion damage of steel structures is rather serious. It is an insurance for structural safety and an important measure of durable that strengthening of corrosion control, selecting the appropriate anti-corrosion technology, reasonable design, scientific construction and appropriate maintenance management, and it has an important economic and strategic significance.
Solution of Statically Indeterminate Beam with Straight Axis by Section-Conversion Method
Authors: Yu Xiao Jin
Published: March 2015

For computation of reaction, internal force and displacement of a beam, the displacement equation from Conversion Method is used in establishing compatibility condition of deformation. In the process of Section-Conversion Method, the joints without sway is set as the coordinate criterion. Cutting the part between two joints as a base element with the method of section, it becomes a simply supported beam in form. The internal forces at the section cut are those which equivalent forces from other side of the beam. According to the axiom of action and reaction, the equivalent forces react to the other part of the beam. The displacement equations are used for all parts one by one. The precision resolutions of reaction, internal force and displacement of a beam are achieved.
Stiffener Design and Analysis of SPSW Adapted to Bi-Directional Loading
Authors: Li Zong Jing , Shu Gan Ping , Zhang Jin , Tan Li Hua , Lu Jiang Long
Published: March 2015

In truss-steel plate shear wall (SPSW) structures, the main role of SPSW is to provide horizontal and vertical stiffness for the system, which requires the SPSW capable of adapting to bi-directional loading. In order to satisfy the goal, stiffeners need to be added to the SPSW. In addition, openings are usually set within the SPSWs to meet certain architecture or utilization needs. Stiffener design criteria for such SPSW with or without opening are first derived according to the principle of yielding before buckling and local buckling before overall buckling. Then the deduced stiffener design criteria are compared with the current design codes. Finally the stiffener design recommendations are proposed for SPSW with or without opening adapting to bi-directional loading.
Test Analysis of Stiffened T-Stub Connections
Authors: Dong Chang Chun , Zhao Wei
Published: March 2015

To investigate the effect of stiffener on the stiffness and strength of T-stubs, 3 T-stub connections without stiffeners and 6 stiffened T-stub connections with varied shape and thickness of stiffeners were tested monotonically. The load carrying capacity, relative deformations of endplates and strains on the stiffeners and endplates were measured. The load-deformation curves of the connections and load-strain curves were presented. The test results showed that the commonly used stiffeners in current Chinese practice often yield or/and buckle prematurely. And the stiffener designed by the method can meet the requirement in CECS102-2002, which demands that the stiffener should be able to force the extended portion of endplates from clamped-free boundary to plates fixed on two adjacent boundaries.
Damage Identification of Space Truss Structure Based on Strain Modal and Wavelet Transform
Authors: Liu Wei Ran , Li Qi Lian , Yue Hong Liang
Published: March 2015

Based on the characteristics of space truss structures, the concept of modal strain energy is introduced and square difference in elemental modal strain is presented. Through the square difference in elemental modal strain and wavelet transform, this paper presents a method for space truss structure damage recognition. The structural damage index is presented with the change of wavelet coefficients. Numerical simulation results show that: this method is effective to locate the single, multiple damages and light, severe damage with the first mode information. The preliminary tries for damage extent identification were made by the wavelet coefficients.
The Structural Nonlinear Damage Detection Based on Linear Time Series Algorithm
Authors: Chen Liu Jie , Yu Ling , Xiao Tan
Published: March 2015

Two new algorithms for nonlinear damage detection are proposed based on linear model with autoregressive moving average (ARMA) in this paper. Firstly, a novel DSF is defined and the DSFs are identified and classified followed by cluster analysis or Bayesian discrimination. Secondly, the performances of the presented algorithms are evaluated and verified by the experimental data of a three-story building structure. Finally, the illustrated results show the algorithms are efficient tools for nonlinear damage detection. They grant a higher accuracy and improve the reliability of nonlinear damage detection whilst reducing computational costs. It can thus be inferred that the proposed algorithms are applicable for Structural Health Monitoring (SHM) in situ.
Wall-Frame and Hollow Shear Wall Structural System and its Application
Authors: Wang Yu Liang , He Ming Xing , Zhou Xiao Jie
Published: March 2015

Wall-frame and hollow shear wall structure system is composited of Window hole wall designed wall-frame and horizontal wall designed hollow shear wall. The system is less weight and earthquake effect than the solid shear wall system, and has a good ductility. At the same time, the system has simple construction, high economic efficiency and good energy-saving emission reduction effect.
Calculation and Numerical Simulation of the Torsional Problems of Hollow Floor’s Boundary Beam
Authors: Zhang Ying , Wei Xin , Chen Yun Meng
Published: March 2015

As a new form of floor, the cast-in-place reinforced concrete hollow floor has the advantages on functions, structural and economic performances.It is a great technological innovation in the field of building structure in our country. This paper studies the torsional problems of the hollow floor boundary beam, and derives the torque’s calculation formula of boundary beam. Then the paper compares the results with the numerical simulation. The results show that both the error is small, the theoretical derivation formula has certain feasibility.
Calculation Method of Ultimate Punching Bearing Capacity of Unbonded Prestressed Concrete Slab
Authors: Zhou Zhi Liu , Wang Feng , Zhao Kang , Liu Tao , Zhang Ya Nan
Published: March 2015

The calculation method of punching shear bearing capacity of unbounded prestressed concrete slab is presented for the reason that traditional methods mainly depend on experiences. The concrete material is assumed as ideal rigid-plastic material. The Quasi-Coulomb Criterion is taken as the strength criterion of concrete, according to plastic limit theory, and the calculation equation of punching shear limit bearing capacity of unbounded prestressed concrete slab is derived through the establishment of virtual work equation. Comparison of the calculation results based on the presented equation with test results proves that the calculation method in this paper can not only reflect and decide various influencing factors of punching shear ultimate bearing capacity of unbonded prestressed slab, and but also the calculated results are more reasonable, accurate.
Comparison of Experimental Tests of Foundation Slabs
Authors: Buchta Vojtech , Hurta Jan , Fojtik Roman
Published: March 2015

In civil engineering we solve problems with interaction between the foundation base and the subsoil often. For the determination of stress in foundation structure is needed to determine the influence of the stiffness respectively pliability of subsoil to structural internal forces, and vice versa, how the stiffness of the foundation structure affects the resulting subsidence. In this article I would like to compare subsidence and deformation of several different baseboards.
A New Method for Determining Thickness of River Incision Layers in High Mountain and Deep River Valley Areas
Authors: Liu Ya Qun , Li Hai Bo , Pei Qi Tao , Liu Jing Sen
Published: March 2015

In high mountain and deep river valley areas, geological materials of river valley evolution are often missing or incomplete. To address this problem, tectonic movements at project site are analyzed using mathematical statistics based on the analysis of formation and evolution history of river terraces, and then a new method to determine the thickness of river incision layers is proposed. Taking Jiata dam area at the Western Route of South-to-North Water Transfer Project in China for an example, the reliability and reasonability of the proposed method are validated through a case study.
A Pile Foundation Problem: Collapse of Soil in Pile Bore Holes
Authors: Yin Mo Zhi
Published: March 2015

In order to deal with the collapse of soil in pile bore holes due to construction wastes, this essay discusses four possible solutions. By comparing the advantages and disadvantages of these solutions, the method of Manual boring + Machinery boring is finally chosen. This provides a reference to other similar construction projects.
Analysis between Water Contain and Lithology
Authors: Zhang Qiu Mei , Tang Jin Tao , Ma Hao
Published: March 2015

Water content has a great influence on the rock mechanics properties. Four kinds of rock samples have been tested in the MTS Electro hydraulic Tri-axial Servo Test System. The result shows that with the increase of water content, the rock uniaxial compressive strength and elastic modulus value are declining. We get the fitting equation between water content and rock mechanical properties with four kind of rocks, provide a new basis for slope stability analysis and landslide prevention and control measures.