Archive

15 June 2006, Volume 25 Issue 3 Previous Issue    Next Issue

---

For Selected:

Download Citations EndNote Ris BibTeX

Toggle Thumbnails

Select

The numeric calculation in FEA method CHEN Qing-jun， GU An-bang 2006, 25(3): 1-2.  Abstract ( )   PDF (152KB) ( )   As a numeric method，FEA mainly deals with the total stiffen matrix．In this paper，we can seethe progmm can run effectively with the mixead-Language program and the superiority of FORTRAN in numeric calculation．At last some typical numeric functions are given References | Related Articles | Metrics

Select

Application of compound reinforcement technology MENG Yun， LIU Yan-ke， ZHANG Hui-li 2006, 25(3): 3-5.  Abstract ( )   PDF (186KB) ( )   Qijian Bridge，which locates in the line from Yanjia County to Kai County，is now a bridge not suitable to a special and emergent tran sport mission．This paper introduces the calculation process an d co nstruction techniques of a compo und reinforcement method of bridge strengthening 。i.e．bonding steel plate together with casting FRC．Successful pass of the heavy motorcade indicates the applicability and usefulness of this method in the reinforcement of old bridge. References | Related Articles | Metrics

Select

Reason analysis and preventive measures for cracking of prestressed concrete continuous box girder bridges JIA Jia ， PENG Wei 2006, 25(3): 6-8.  Abstract ( )   PDF (181KB) ( )   Some factors that induce cracking of prestressed concrete continuous box girder bridges are discussed，such as prestressing tendons， calculation method，temperature stress，concrete stress control，ere．The results obtained from the calculation are presented to demonstrate the effect of these factors．Several design recommendadons and construction measures are proposed to resist cracking 0f long-span continuous box gilder bridge． References | Related Articles | Metrics

Select

A probe into the calculation method 011 coping's internal force of pillar pier HU Dong， HU Mian-yi 2006, 25(3): 9-12.  Abstract ( )   PDF (167KB) ( )   The paper sets forth the calculation method of coping’s internal force undertow different calculation graphic formulas and comparative analyses are made．As indicated in the analyses：the coping's internal force shall be quadrate allocated when the rigidity of the pillar is taken into account which leads to the diminution of middle span positive flexural torque and augment of fulcrum neglttive flexural torque (cauea Rigid Frame Effect).It goes priminently as the linear rigidity ratio of the pillar and coping increases.When the linear rigidity ratio is small，simplified twill-cantilever free beam(continuous beam)graphic formula shall be adopted whereas the fulcrum section shall be properly reinforeed；while to the important briages or briages with hrge linear rigidity ratio ofthe pillar and coping，twill-cantilevelr rigid-framed structure graphic formula shall be appropriately usedfor calculation. References | Related Articles | Metrics

Select

Static experimental analysis of a three-span continuous rigid bridge ZHOU Bing， SHI Shang-wei 2006, 25(3): 13-17.  Abstract ( )   PDF (216KB) ( )   In the paper a three-span continuous rigid bridge in Leshan city had been tested about its stresses，deflection and cracks under experimental loads，and the structural rigidity，material strengths and anti-crack perIormanes analysed to appraise the actual carting capacity of the bridge．The work could provide usdul references for design and construction of the similartype of bridges． References | Related Articles | Metrics

Select

Analysis of shear connector of box girder with corrugated steel webs ZHONG Hao， XU Jun-lan， GU An-bang， HU Xu-hui 2006, 25(3): 18-20.  Abstract ( )   PDF (175KB) ( )   The prestressed concrete composite box girder with corrugated steel webs is a new type of steel-concrete composite structure，which is have been extensive used in Japan and European countries lies in its super-performance on mechanics，because the superiority is ma g fully utilize of material characteristic of the stel and concrete． Shear connector is a decisive factor whether it can provide a sufficient integrated action to the composite structure or not．The paper introduces the analysis of mechanics capability and design methods of shear connector of the box girder with corrugated steel webs．Furthermore，example of shear connector design in first similar internal bridges— DA YAN HE bridge is offer． References | Related Articles | Metrics

Select

Construction management of expansion joint of bridge on highway HUANG Long-xian ， YANG Hu-gen， JIANG yu 2006, 25(3): 21-25.  Abstract ( )   PDF (379KB) ( )   The successful experience of bridge expansionjoints installation Wanliang and Liangchang highway is introduced．Some rules of the project management system are proposed．The damage mechanism of the bridge expansionjoints is analyzed and some technical parameters is given for reference． References | Related Articles | Metrics

Select

The application and structure of hydraulic clhnbing form system LONG Qiong，ZHANG Gang 2006, 25(3): 26-31.  Abstract ( )   PDF (324KB) ( )   The structure and ereetion process of hydraulic climbing form system are not only introduced specially，but also the main working procedure and technical requirements are analyzed． References | Related Articles | Metrics

Select

Prediction of nerve network on surrounding rock deformation in Yangzong hightway tumnnel XU Lin-sheng 2006, 25(3): 32-35.  Abstract ( )   PDF (156KB) ( )   The suurrounding rock deformation of highway tunnel is an important index to assess its stability and economy of support structule in NATM．It is a data column which is related with measurement time sequence,so we can set up some effective models and methods to pledicate the surrounding rock deformation．According to the surrounding rock deformation characteristic of Yangzong highway tunnel，this paper sdopts the nerve network technology to predict the subsidenee displacements．The research results show this prediction method is simple and effective． References | Related Articles | Metrics

Select

Numerical simulafion of asphalt pavement crack propagation and analysis of influence factors MAO Cheng， QIU Yan-jun ， LI Yun-peng 2006, 25(3): 36-39.  Abstract ( )   PDF (279KB) ( )   In order to study asphalt pavement crack propagation paths,the linear elastic fracture mechanics(LEFM) theory and finite element method(FEM) that incorporate traffic load and temperature stress are used in this paper.Using quarter point collapsed singular isoparametric element, the stress singularity at the vicinity of crack tip is simulated.The crack propagation paths are simulated by using window moviing; tech- nique(WMT).Based on these,an asphalt pavement crack propagation paths simulation(APCPPS2D)program is developed.Under the various load location cases, the crack propagation behavior of surface crack and base bottom crack are simulated using APCPPS2D.The influences of layer modulus combination on pavement cracking are studied.The simulation results indicate that this method can simulate crack propagation paths and help to understand crack behavior of asphalt pavement in a better way. References | Related Articles | Metrics

Select

The AHP-Fuzzy method apply in the evaluation of concrete pavement distress HAN Zhen-zhong,WANG Yu 2006, 25(3): 40-43.  Abstract ( )   PDF (172KB) ( )   The evaluation of the condition of concrete pavement distress is an important part of pavement management system,by which the strategies of pavement maintenance are made. In this paper,the author sets forth a set of indices for evaluating the condition of concrete pave- ment distress by analyzing; the research results of the past about concrete pavement evaluation,and adopt the AHP method to construct hierarchy analysis model for determining the weight of each index in the evaluation of the condition of concrete pavement distress. Finally,the autbor presents a fuzzy mathematics model for comprehensively evaluating the condition of concrete pavement distress. References | Related Articles | Metrics

Select

Assure the minimum hortative wavelength by the international roughness index WU Yong，HEI Peng 2006, 25(3): 44-45.  Abstract ( )   PDF (137KB) ( )   The international roughness index is the normalized measurement way about roughness in the world. The hortative wave-length affected by some factor,is aestimated scope. This text will draw on the international roughness index to deduce the minimum hortative wavelength,so as to reduce the error during the model conversation and numerical calculation of roughness. References | Related Articles | Metrics

Select

Study on the third level climatic zoning for highway in Sichuan and Chongqing LI Xu,LIANG Nai-xing 2006, 25(3): 46-49.  Abstract ( )   PDF (231KB) ( )   Combined with the first and second level in the <>nowadays,this paper discusses the principles and the methods of executing the third level climatic zoning for highway in Sichuan and Chongqing,so that the climatic zoning for highway between provinces can provide more comprehensive fundamental data,and enhance the operative ability and the utility of the climatic zoning for highway. References | Related Articles | Metrics

Select

Model engineering of survey and design illustrated with Xiaomo highway LUO Na,LUO Tao,FEN Han-dong 2006, 25(3): 50-53.  Abstract ( )   PDF (235KB) ( )   Illustrated with Xiaomo Highway of Yunnan Province, New ideas of survey and design of the model highway engineering and something should pay attention to were introduced. References | Related Articles | Metrics

Select

Research overview of the relation between ultrasonic parameters and stress on rock LIU Yang,ZHAO Ming-jie 2006, 25(3): 54-58.  Abstract ( )   PDF (337KB) ( )   Based on the domestic and international references, this article describes the present research situation about relation between ultra- sonic parameters and stress for rock on these aspects such as ultrasonic velocity、acoustic attenuation coefficient、frequency frequency spectrum、 tail wave,then presents the author's options for research in the future. References | Related Articles | Metrics

Select

Study on the hollow anti-sliding piles of reinforced concrete LIU Xiao-yu,ZHAO Yong,LIN Xin 2006, 25(3): 59-61.  Abstract ( )   PDF (175KB) ( )   In this paper, the hollow anti-sliding pile is brought forward as a new structural form in single anti-sliding pile field. By the finite element analysis, the stress and displacement of the piles are got on the basis of satisfying the structural request. It is gratified that concrete and steel can be quite saved in the design by using the hollow anti-sliding pile. In consequence, using the new form of piles is economic and cost-effective . References | Related Articles | Metrics

Select

Experimental study on reasonable evaluation of rebound modulus of subgrade LIU Zhi-jun,LIU Chun-rong,HU Peng 2006, 25(3): 62-64.  Abstract ( )   PDF (146KB) ( )   Considenng the current status of unreasonably determining rebound modulus of subgrade, the relations between rebound modulus of subgade and its rebound deflection, compactness and consistency are obtained by experimenting on the rebound modulus and rebound dellection of subgrade in Nanyang zone of Henan province. Finally, the values of subgrade parameters with heavy compaction standard are demonstratively proposed.The study conducted in this paper reflects the actual level and provides a scientific basis for highway designing of the repon . References | Related Articles | Metrics

Select

The design about geogrid reinforced earth retaining wall WANG Qi, HAN Dao-jun, CHEN Shi-Zhou 2006, 25(3): 65-68.  Abstract ( )   PDF (217KB) ( )   The current specification for reinforced etuth retaining wall is mainly adapted to the plastic or steel-plastic belt. ctually, the widespread application for geoElTid in current engineering construction lacks for correlated theory and method. Fonn the interaction mechanism with geognd and soil, the text mainly introduces the design about reinforced retaining wall with geogrid.Using the soil theory of Rankine.Coulomb and Boussinesq etc. and consulting the foreign experience about engineering application for geosynthetics, the paper presents the design methods and formulas for the internal and external stability about the geogrid reinforced earth retaining wall ard gives an application example . References | Related Articles | Metrics

Select

The appliance of root-pile and CMA blend in expansive-soil cutting-slope YAN Chun,LIU Yanl,HUANG Zhong-wen 2006, 25(3): 69-73.  Abstract ( )   PDF (288KB) ( )   Get across expansive-soil construction and research in nanyuu highway,simple analyzing destructive reason in expansive-soil cutting slope on the basis of engineering characteristic of expansive-soil.Introduce reinforce protection scheme of root-pile+ CMA blend, which assist with otber required measure. Application mechanism and range of this scheme in the expansive areas is discussed, and scheme design.construction technology and quality control are set forth emphatically in this paper. References | Related Articles | Metrics

Select

A study on the mechanism of subsidence of embankment influenced by moisture content JIANG Wen-li,LIN Chun-wei,HUANG Zhong-wen,LIN Chun-jiao 2006, 25(3): 74-76.  Abstract ( )   PDF (210KB) ( )   It is pointed out that using the compactness as the only standard in testing quality of packing embankment is insufficient,and the influence of moisture on subsidence of embankment is analyzed in this paper. Based on the theory of general suction and general effective stress of remolding non-saturated soil,the mechanism of embankment subsidence is analyzed,and a theory of two-step settlement is presented. References | Related Articles | Metrics

Select

Methods to modeling the soils considering the structure ZHENG Zhi-neng,LIU Yuan-xue,ZHANG Yong-xing 2006, 25(3): 77-80.  Abstract ( )   PDF (226KB) ( )   The constitutive model of soil considering the structure is the key problem of soil mechanics.The article divide the models into the compound model,micromechanical model and the tranditional plastic model.Then the characteristical,situation and so on are discussed. References | Related Articles | Metrics

Select

Structure characteristic and mechanics performance of pervious concrete WU Guo-xiong,WANG Rui-yan,ZHENG Jian-ming 2006, 25(3): 81-83.  Abstract ( )   PDF (222KB) ( )   Pervius concrete' structure like beehive for its materials and ratios are special. Special pervious concrete' structure lead to some dif- ferent performance from common concrete. The paper studied pervious concrete' s structure characteristic,strength mechanism, mechanics per- fonnance and destroy charactenstic,in order to direct application of this kind of new concrete material References | Related Articles | Metrics

Select

Study on the crack resistance of concrete effected by fiber XUE Xin, WANG Rui-yan 2006, 25(3): 84-85.  Abstract ( )   PDF (160KB) ( )   With the demand of the engineering project and the development of the technology, concretes have been developed to get the high strength, high durability, and high mobility with physical volume stability. However because of the initial weakness of concrete, especially when strength is high, cracks will easily be developed because of its brittleness, which is the main reason resulting in many project prohlems.Putting the organism fiber into concrete can lower concrete' s brittleness, control the shrinkage defornation of concrete, increase concrete' s perfonnance of preventing crack, and improve the whole perfonnances of the high performance concrete. References | Related Articles | Metrics

Select

Effect of interfacial agent on bond strength between new and old concrete ZHAO Feng-jie, WU Zu-lie 2006, 25(3): 86-90.  Abstract ( )   PDF (244KB) ( )   Bond plane is the tache of weakness fcr the new and old concrete bond structure when withstanding shear force and tension. Appropriate interfacial agent can improve bond strength. The shear resistance and tear resistance bond strength of new and old concrete for several in terfacial agents were studied through expenments. Shear resistance bond strength and tear resistance bond strength of new and old concrete structure with different interfacial agents were gained, the effects of interfacial agents on bond strength of new and old concrete structure were analyzed. References for application of practical engineer were provided. References | Related Articles | Metrics

Select

Tests on mould pressure for void concrete plate MA Yu-cun,XU Qing-ming,CHEN Quan,ZHOU Shui-xing 2006, 25(3): 91-94.  Abstract ( )   PDF (193KB) ( )   Based on the side pressure and buoyancy produced during consructing and shaking concrete, the characteristic and effect factors about the above were discussed in this paper. The site-in-tests about side pressure and buoyancy of mould on the void concrete plates have been made. The test results were compared with the crurent formulas, and wene in agreement with the theory values. References | Related Articles | Metrics

Select

The location planning of urban highway passenger transport center ZHU Cheng-ming,HU Guang-ming,LIU Ya-dong 2006, 25(3): 95-98.  Abstract ( )   PDF (183KB) ( )   With the rapid development of china urban,how to realize the reasonable layout of the location planning of urban highway passener transport center is a important part duning the city planning and traffic planning. In this article,aimed at the people orierted and the continual development of city, the influence factor and the principle of the location planning of urban highway passener transpmt center are analyzed and the merans of the location planning of urban highway passener transport center is discussed,providing the evaluation at the same time. References | Related Articles | Metrics

Select

Short-term traffic flow forecasting based wavelet YANG Fang-mingl,ZHU Shun-ying 2006, 25(3): 99-102.  Abstract ( )   PDF (167KB) ( )   In this paper, we use wavelet transfonn to decompose taffic data into individual components and perfom the prediction of each component by ARMA model, we obtain traffic prediction by each component' s prediction. Experimental results shows that the menthod has high precision . References | Related Articles | Metrics

Select

Research on urban bicycle traffic transferring LI Juan,LUO Xia,CAO Jin 2006, 25(3): 103-105.  Abstract ( )   PDF (155KB) ( )   According to the constraint conditiond of individual roadway area and the correlation between different competitive traffic tools,this paper discusses the percentage of urban passenger transport after analyzing the trend of urban bicycle traffic development.The traveleling efficacy is considered as the influence factor of traffic transferring. And then,the model of bicycle traffic transferring is established by probabnity selectivity. At last,the measures to control bicycle traffic transferring are put forward bere in order to optimize the percentage of urban passenger transport. References | Related Articles | Metrics

Select

A new model and its application on the structural training in the township-owned and private logistics enterprise LIU Wei-hua,JI Jian-hua 2006, 25(3): 106-110.  Abstract ( )   PDF (330KB) ( )   In this paper, it analyzes the status of training in township-owned and private logstics enterprise and brings up the active effect of training.It also puts forward four different characters of training in logstics enterprise.Based on these characters, it puts forward the new model on the structural training including structural demand analysis, structural content system, structural operation system and structural evaluation system. Dynamical management is also needed.This paper also makes its application on the H logistics enterprise. At last, the conclusions of this paper are given. References | Related Articles | Metrics

Select

Appraisement and selection decision of suppliers based on the method of fuzzy principal component analysis YU Zu-de,ZHOU Ming-you,CHEN Jun-fang 2006, 25(3): 111-115.  Abstract ( )   PDF (244KB) ( )   When there are too many indexes of suppliers' selection and it is not easy to make a decision. On the one hand it is easy to find the principal components,their contribution rate(the early weight) and reduce the dimension with the method of principal component analysis. One the other hand it can be used to modify the early weight and make the weight rationally.The appraising value endow with new weight are scientific and impersonal.They can be used as reference of suppliers selection. References | Related Articles | Metrics

Select

The disadvantages existing in the feasible research work of engineerng at present and countermeasure LUO Na,LUO Tao,FEN Han-dong 2006, 25(3): 116-118.  Abstract ( )   PDF (165KB) ( )   The paper analyses the disadvantages existing in the feasible research work of the highway engineering at present in our country，then, in order to give full play to the role in engineering construction of feasible research work of the project,the paper find out the countermeasures and the solving measures for these general problems. References | Related Articles | Metrics

Select

Mechanism analyses about low bid price but high cost in large engineering project HUANG Shi-wu 2006, 25(3): 119-124.  Abstract ( )   PDF (379KB) ( )   During large engineering project construction,the phenomenon which the low bid price often leads to high cost has its own inevitability. Chances to get contract affect the quoted price. Low price to sign contract promises that the project owner would gain excess profits. In construction this will leads owner and contractors to form an antagonized relationship at beginning, then come to term gradually, namely "antagonism to concession" relationship between owner and contractors. After contractors enter the building site, the owner whose losing risk coefficient turns to bigger tends to concession in order to ensure the project complete at the plan time. "Antagonism to concession" relationship between owner and contractors has a fluctuant balanced point, but at the process in which owner and contractors fight for profits, the resource was invisibly consumecL The article analyzed the phenomenon with mathematics model, and gave some suggestion which applied to management of large engineering project will avoid the phenomenon References | Related Articles | Metrics

Select

Discussing the invite public bidding methods of highway construction in Chongqing inter-county YANG Ping-ru,LIU Hong-xing,SHEN Gang,TAN Yong 2006, 25(3): 125-129.  Abstract ( )   PDF (278KB) ( )   This paper analyses the invite public bidding methods of highway construction in Chongqing inter-county, and it compares the advan- tage and disadvantage of every methods. It points out that by adopting the lowest bidding measure having estimation of contract sum cost we can control investment efficaciously, cut down the phenomena that some small enterprises join bidding by borrowing qualification, have the initiative in engineering construction. It offers certain experience for the invite public bidding of construction References | Related Articles | Metrics

Select

Discussion on how to treat the method of choosing the lowest offer bid for construction enterprise CHEN qiu-ru 2006, 25(3): 130-133.  Abstract ( )   PDF (229KB) ( )   Based on the construction enterprise' s opinion, the paper interpreted the method of choosing the lowest offer bid in Shenzhen con- struction market. There are four means to treat the method: construction enterprise norm, unbalance quote, liability analytical and construdion enterprise cost. In practice, these means are feasible. References | Related Articles | Metrics

Select

The research of supervision cost calculating method in highway engineering YANG Yu-sheng, YUAN Jian-bo 2006, 25(3): 134-137.  Abstract ( )   PDF (236KB) ( )   Based on current state of highway engineering Surpervision in China,the sbortcomings of the highway engtneering stupervision cost calculating method are pointed out. By compraring with the design cost calculating method,the project management cost calculating method, and the foreign Surpervision cost calculating method,an new method to calulate the cost of highway engineering surpervision is presented in detail． References | Related Articles | Metrics

Select

Simply discussing the entironment influence and protecting measures in construction of Chongqing Yunyang to Hubei Lichuan mountainous area secondary road LIU Hong-xing,YANG Ping-ru,WU Jin-liang,XU Xi 2006, 25(3): 138-141.  Abstract ( )   PDF (222KB) ( )   This paper summarizes entironment protecting measures taken by project owner, designer, supervisor, constructor in the constructing of Chongqing YunYang to Hubei Lichuan secondary road. And it also analyses how road construction affects on mountainous area entironment. It points out that we must exert organizing measures and engineering measures adequately to protect entiroment. It offeers certain experience for the highway construction in mountainous area. References | Related Articles | Metrics

Select

The research of supervision cost calculating method in highway engineering YANG Yu-sheng， YUAN Jian-bo 2006, 25(3): 142-144.  Abstract ( )   PDF (169KB) ( )   Based on current state of highway engineering surpervision in China，the shortcoming of the highway engineering surpervision cost calculatlng method are pointed out．By compraring with the design cost caculating method，the project management cost caleulating method，and the foreign surpervislon cost calculating method，an new method to calulate the cost of highway engineering surpervision is presentedin detail． References | Related Articles | Metrics

Select

Reading method of automatic level Ni002(007)micrometer principle ZHOU Zu-yuan 2006, 25(3): 145-147.  Abstract ( )   PDF (205KB) ( )   This paper mostly discusses the task principle,reading method and reading error of automatic Ni002(O07) micrometer． References | Related Articles | Metrics

Select

Technical research and improvement and technology discussion on self-jacking up platform for riprap and trim XU Si-fa 2006, 25(3): 148-152.  Abstract ( )   PDF (272KB) ( )   How to utilize the platform technology to graft on the usage funetions of construction barge in accordanee with the need of the project construction．Through theoretic calculation and field practice，the paper discussed and improved the mechanism of the constructionl barge for the riprap and trim operation at deep-watex area of offshore that is suitable for inclement ciretenaanees．This paper can be for similarity project reference． References | Related Articles | Metrics

Select

The experiment study on critical velocity of the rongchang fine coal powder ZHANG Xiao-ming，CHEN Gui-fu，WEN Cen 2006, 25(3): 153-155.  Abstract ( )   PDF (118KB) ( )   Based on the flume experiment，the start velocity experiment data of Rongchang fine coal powder are fitted，and the threshold velocity formula is introduced also．It provided the foundation for the sediment velocity scale computation． References | Related Articles | Metrics

Select

A new dass of abstractly generalized bi-quasi-variational inequality on paracompact sets WANG Da-cheng， HU Bi-jin 2006, 25(3): 156-158.  Abstract ( )   PDF (137KB) ( )   In this paper，utilizing the minimax inequality theorem in[1]，we study the existence problem of solution for a new class of abstract1y generalized biquasi-variational inequality． References | Related Articles | Metrics

Select

The six biblometric indicators for Journal of Chongqing Jiaotong University and their ranks in 2003 FAN Wen-tian 2006, 25(3): 159-162.  Abstract ( )   PDF (240KB) ( )   The general knowledge about the Chinese Acatemic Journals Comprehensive Citation Report(CAJ-CCR) are introduced．According to the magnitudes the six biblometric indicators such as number of articles published、citation fregucncy、impact fator、immediacy index、 half-life of citatoin and other citing rate，the ranks for Journal Chongqing Jiaotong University(JCJU) with the other 28 journal of universities for the traffic-navigation diseipline in CAJ-CCR 2OO4 are listed．As will be readly seen that，the rank of these main indicators for JCJU stand comparison to some journals of famous Universities in the same discipline． References | Related Articles | Metrics