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15 February 2005, Volume 24 Issue 1 Previous Issue    Next Issue

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Study of aseismic design for railway curve-girder bridge SHAN De-shah， LI Qiao 2005, 24(1): 1-4.  Abstract ( )   PDF (255KB) ( )   Seismic responses of railroad curved-girder briage were treatment using the time-history analytic method． Two briage type，continu． OIlS curved-girder band continuous curved rigId frame briage，have been taken into account during the analytical process．Artificial seis． mic waves we 1℃adopted．The import of one dimension hquake motion and many dimensions earthquake motion we 1℃considered，In addition， the contribution caused by the earthquake motion import direction on curved Order bridge were consideration．Then aseismie design of railroad curved-girder b d WaS disquisition，Some practical application conclusions were obtained References | Related Articles | Metrics

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Influence of structural nonlinearities OH Internal force of super-long span cable-stayed bridge under service stag ZHANG Xue-song, ， LIANG Peng ， ⅡA Li-jun ， XIAO Ru-cheng 2005, 24(1): 5-8.  Abstract ( )   PDF (238KB) ( )   In this paper influence of structural nonlinearities on internal force of super-long span Cable-Stayede Llnder service stage is studied ．3he cable sag efect，the beam-columnefect and the a displacement effect are taken into accountinthe study．Based on the study of a cable-stayed bridge with a main spai of meter than lO00-meter-long ．the nolinear influence factors of internal force at controlling sections are evaluated ．Finally,the measlles to reduce the influence of nonlineafiles presented References | Related Articles | Metrics

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The space simulation analysis of simply-supported girder bilges with continuous slab．Decks HE Chang， XIANG Zhong-fu 2005, 24(1): 9-15.  Abstract ( )   PDF (394KB) ( )   The early stage damage of simply-supported girder bridges with continuous slab-decks are duetomany unresonable factorsin design and construction．According to the finite element theory and applying ANSYS，the mechanical behavior of simply-supported sister briage with conluo11s slab-decks under weight ofthe asphalt concrete surfacing，live load and temperature variation has been analyzed nonlinearly．And some precautionary and improving Ineasurs are suggested accordingly References | Related Articles | Metrics

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Research on load arrangement method of bridge load testing experiment based upon controls of efi ciency of inner force and deformation LIU Si-meng， LIU Guo-jin， ZHOU Jian-rin 2005, 24(1): 16-18.  Abstract ( )   PDF (117KB) ( )   Load testing experiment becolTleS mole and mole important to chinese biage construction．Comprehensive and exact scheme ofload arrangement is the precondition of sucoes load tesfng experiment．Based UpOll detailed analysis of present load alTangemertt solution．this paper points out its lack and ofers a method to fix the problem References | Related Articles | Metrics

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The theory of optimal selection of rebuilding proposals for worn bridges and development of program ZHENG Xia0一gang, XIAO Sheng-xie，ZI-U Zeng-hui 2005, 24(1): 19-24.  Abstract ( )   PDF (287KB) ( )   Abstract：Because the influential factors Oil the selection of rebuilding propesals for worn bridge is fuzzy，a systemic fLl synthetic selection method is pr0 in decision of rebuilding sclls．paper introduces the mathematic model and process ofthe method in detail，and pring with hIlgua8e of visual C++ has been verified with$Ollle examples．From the results，It call be seen that the method is simple and useful，oahy of refemn References | Related Articles | Metrics

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Control of the concrete hydration crack in high-rise building transfer floor girders HUANG Meng， CHEN Si一tian， HU Yuan-huaI 2005, 24(1): 25-29.  Abstract ( )   PDF (201KB) ( )   Based Oil the concrete hydration-temperature test of the tilsferfloor girders in No.11 and No．12 buildings，Jiazhou garden， the paper studies the characteristic ofthe time-temperature curves during concrete hydration in high-rise building transferfloor， and brings forwardures to avoid cracng by concrete hydration．The data and the successful,experience from the example project is able to be referencedby other similar situation References | Related Articles | Metrics

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I the application and future of carbon fiber reinforced polymer in bridge structure WANG Sheng-yi 2005, 24(1): 30-32.  Abstract ( )   PDF (201KB) ( )   Today．it is a international hotspot that the Cairl Fiber Reinforced Polymer is developed in the civil engineering structure．Nowadays the CFItP is gradually appfied to the dge structure．This article introduce briefly the characteristics ofthe CFRP，the application ofthe CFItP in the new bridge structure and the old d structure reinforced ．Finally the author wish a great development ofthe CFItP and a vast market in the future． References | Related Articles | Metrics

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The validation of the non．noda1． eormeetion method for plane beam elements of Finite ZHU Zeng-hui， WANG Jia-lin， XIAO Sheng-xie 2005, 24(1): 33-36.  Abstract ( )   PDF (178KB) ( )   the non-nodalconnectionme thod andits application Oil plane beamsin software Finite are presented. problemsof Tbeamsre． inforced OIlG-rete beams，and rehabilitated beal are calculated with Finite and ANSYS as well as aI1alytical method． The comparisons of the results validate the non-nodal con ection me thod on plane beams Finite． References | Related Articles | Metrics

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Highway route design process model based on constraint description YANG Hong-zhi， XU Jin-liang 2005, 24(1): 37-41.  Abstract ( )   PDF (261KB) ( )   Highway design problem is inexact definition problem．Its design process satisfied the constraint step by step based orl the design requireⅡlem．Because current highway CAD system only supported the designer by plotting and calculating，this ardde discussed the thinking method ofhighway design and suggested building design process model to improve the suppoe,inglevel of highway CAD system．Highway route design process model based orl constraint deseriptiorl was defined and its fbn玎 li 0n deseriptiorl was given．The application of it was illumi- nated by highway horizontaldesign． References | Related Articles | Metrics

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Research of special peculiarity of flexible fiber reinforced concrete CHEN Yi-yi， ZHAO Feng-jie， YI Zhi-jian， YANG Qing-gu 2005, 24(1): 42-45.  Abstract ( )   PDF (249KB) ( )   To reduce normal concrete's defect，this article propose a new material d flexible fiber reinforced concrete to apply in road ennedng ．Based onthetheory crakemechanics，donll．1eh experimental researchto gainthe special traits offlexiblefiberreinforced concrete References | Related Articles | Metrics

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Research on the economic result of polymer Prtland cement concrete pavement VAJ Jin-liang， LIANG Nai-xing， MA Qan-hua， CHEN Tai-hao 2005, 24(1): 46-49.  Abstract ( )   PDF (201KB) ( )   highway’s property caJl be improved by polymer into the Portland cement concrete pavement．But this will boost the cost of initial pavement construction．This pa per discusses the economic results ofpavement from the point ofthe cost in life．And it shows the prospect ofpolymer Portland cement concrete pavement References | Related Articles | Metrics

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Study Oil SI-IRP SBS modified asphalts’anti-cracking characteristics ZHOU Jin-chuan ， ZHANG Zhi-qiang， RAO Xlao-yu 2005, 24(1): 50-52.  Abstract ( )   PDF (215KB) ( )   Three kinds ofdomestic base asphalt andmodier SBS are made into SBS modified asphalt by appropriatetechniquesin order to explore resistance to fatigue and low temperature anti-cracking performance of SBS modified asphalt． SHRP methods including dynamic shear rheo,meter(DSR)，bending beam the meter(BBrt)were used to stray the ological property of three SBS modified asphalts,RTFO／PAV residue． It was shown that correlation was very good between complex shear modulus， phase angk，fatigue king factor，creep still,mvalue and temperature in the range of wider temperatur References | Related Articles | Metrics

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Test studying of asphalt mortar’S performance at low tempe rature ZHENG Nan-xiang， ZHANG Yong-inall， ZHANG Yi-luo 2005, 24(1): 53-56.  Abstract ( )   PDF (189KB) ( )   1his paper prepared diferent DP aspimlt mortar with creeping test instnunent which made by ourselves ，then determined testing con． ditionandmethods．We studiedtheir creeping performance atlowtemperature．We also studied theinfluencing factorstothe deformation of as． ptmlt mo rtar and pointed out that it must combined the quity grade，brand of asptmlt and mineral powder as well as otherfactors to select the reasonable． References | Related Articles | Metrics

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The research on anti-cracking capability of lime fly ash ZHENG Nan-xiang， LI Wei-guang 2005, 24(1): 57-61.  Abstract ( )   PDF (190KB) ( )   When I2CA is used in the semi-rigid basement，it always has the shortcoming ofcracking easily，and so due to the phenomenon of reflective-cracking on the asphalt·pavement．But nOW we don’t know how to judge Or measure it．WlliclI cause it is dificult to solve it in the design and construction．In this paper，by the use ofdiferent theories of step-graded continuous-gradation、gap-gradation，and k way，designed 10 kinds of LFAG with diferent grades．By the synthesized-research on modulus moisture-shrink and temperature-shrink，suggests the evaluate-guidellne of LFAG．and anti-cracking-coeficient．At last validated by the experiment road.proves the right ofthe ifII1 research． References | Related Articles | Metrics

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r,FC2D simulation research Oil vibrating compaction test of soil-aggregate mixture KONG Xiang-chen， CHEN Qian-yi ， JIA Xue-inirlg 2005, 24(1): 62-67.  Abstract ( )   PDF (387KB) ( )   In the paper the vibrating compaction process of soil-aggregate mixture ofdiferent ratio of soil and rock underthe condidon ofce,ro tain graduation was simulated according to parucle distinct element method based on particle motion pattern and density formation mechanism during brating compaction process of soil-aggregate mixture．At the same time Micro flow behaviors and structure properties of the particles was discussed．Some help conclusions were drawn． References | Related Articles | Metrics

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Application of the high pressure circular jet grouting in the big dimension man-dig pile ZHANG Xia ， XIANG Zhong-fu ， HE Lid 2005, 24(1): 68-70.  Abstract ( )   PDF (199KB) ( )   A method of high pressure circularjet grouting is recommended to use in the reinforcement of slay bed，which Call aid for the dig． ging of big demension anti。slide pile in the weak ground and as a waterproof wal1． Additionally，analysis of failure of the set of cement day paste is presented in this paper．It provides reference for the construction of similare gineeri. ． References | Related Articles | Metrics

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Test study on roadbed construction machinery compose 0f the desert subgrade CAO Yuan-wen， MA Li-ying， KONG Rong 2005, 24(1): 71-72.  Abstract ( )   PDF (151KB) ( )   Combined with study on test of Yu-Jing desert highway，the common construction machinery of the desert subgrade had been discussed from eolian’s special property．Moreover，construction machinery compose and construction technology of suitable desert subgrad road- bed had been researched，Tne study conclusion really benefits from the execution ． References | Related Articles | Metrics

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The measuring methods o1'eolin-sand roadbed’s compaction degree LI Zhi-yong， LINAC Nai-xing， MEI Ying-jun 2005, 24(1): 73-76.  Abstract ( )   PDF (207KB) ( )   Making eolin-sand be material of roadbed is a new technology in process of way in desert and it also has many difllcults． necaus the sand grin is incompact and disarranged very easily，the sand cIlaIlges its primary condition．When it is in low moisture，its interi or felting forceis anditisdificultto gait,compactiondegree us gtraditionalmethods．Thusthemeasuringmethods of roadbed’stompaction degree is a big problem．This paper two kinds ofmethods-destroyed and no-destroyed to IlleasuIil the compaction degree ofeolinsand roadbed and analyses merit and demezit of every method．Finally，this paper gains the suitable methods． References | Related Articles | Metrics

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The research on performance test of lime-flyash stabilized shale soil (adding soft aggregate)used as base of county roa HE Zhao-yi ， LIU Qing-qian， HUANG Wei-rong， ZHIANG Hai-ong， GUEI Zhi-jing 2005, 24(1): 77-81.  Abstract ( )   PDF (225KB) ( )   in this paper，physis-mechanics property oflime-flyash stabilized shale soil(soft aggregate)is studied．through the resear． flyash stabilized stmle soi and limc-flyash stabilized soft aggregate used as pavement base of county road in lacking aggregate district is renable References | Related Articles | Metrics

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Analysis of measurement to dispose unwell section of excavation roadbed JIANG Li-Sh eng， ZI-IANG Hui-xin， LI Xue-ping， GONG Lian一ming ， WU Jin-liang 2005, 24(1): 82-84.  Abstract ( )   PDF (173KB) ( )   this par introduces some kilds ofmeasurement to dispose unwdl section of excavation such as strong pound，boring and plasm'Inding with liale，replacement in the layer，base on the geologic instance and expeA-ience of express highway eneerir of second period． References | Related Articles | Metrics

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Selection Oil economical section type ol'the high fillroadbed in the mountainous area． xu ji-jiang， ZHONG Yi-ming ， YANG Deng-fa 2005, 24(1): 85-88.  Abstract ( )   PDF (200KB) ( )   The hign filled and sleepy aug rodbeds are many in the mountainous al-ea．The tens highdled roads appear everywhere．and the border ramps，expending nelore than One hundred meters or the failing Idbeds appear whele too．Choosing the roadbed soetion type is a very economical andfeasibleway．That settle howto cutthe amount ofthe highfills orthe barricades，Cut downthe projectfunds anddepress the disculty of the construction References | Related Articles | Metrics

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Studying on the structural design partial coefi dents of the inner stability of reinforced earth structures LIU Ming-wei, ， W ANG Duo-yin， HE Guang-chun 2005, 24(1): 89-93.  Abstract ( )   PDF (191KB) ( )   0rdiIlg to the determining methods ofthe structural desi eoefllelents，the optimum action and resistance pedal eodtleients are about the il'Lrler stability of reinforced earth structures，and results show reasonable by examples cell．The results give a reference to the new code in reinforced earth structure design． References | Related Articles | Metrics

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Comparison ＆ analysis of transfer cofi eient methods＆ strength reduction methods of FLAC --An engineer example of houzishi landslide JIANG De-fei， HE Guang-chun 2005, 24(1): 94-99.  Abstract ( )   PDF (262KB) ( )   Based on the stability calculation of the Houzishi landslide by tl-aiiKfer edlieient methods and strength reduction melbods of FLAC (Fast LagFangian Analysis Continua)．The stability ofthelandslideis computedand analyzed uIlIdbr condid0ns 0ftIle natu situadtion， water storage ofthe Three-Gorges and earthquake．The result indicates that FLAC can reflect the law changes of IPSS and strain in 1ar ． can the chan of displacement，velocity and stress ofthe keypoints with the time． References | Related Articles | Metrics

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Impement quality’cost management to enhance efi ciency of expressway constru ction management ZHOU Xin 2005, 24(1): 100-103.  Abstract ( )   PDF (271KB) ( )   In this paper, indicator system of investment risk at infrastructure project is constituted. Then, using analytic hierarchy process (APH) and fuzzy evaluation theory, the Fuzzy Overall Evaluation Model of Investment Risk at Infrastructure Project is established, which can be used to synthetically evaluate the investment risk grade of a infrastructure project, and provide basis for completion of the investment decision. References | Related Articles | Metrics

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From transportation hub planning to plann~ regulation --The viewpoint to the trend of the slructural adjustment for the highway transportation LUO Xia ， YAO Xin-sheng ， WANG Qing-yu 2005, 24(1): 104-106.  Abstract ( )   PDF (187KB) ( )   According to the fast sustaining development ofnational economy，as well as the present situation ofthe planning，construction and operation of the highway rnmn hub，the paper discusses the necessity of the planning regulation for the highway transportation hub ， pointes out that the main task the regulation is that，not only for adapting to the development ofthe passenger transportation and logistics．but also for meeting the tendency of the structural adjustment of highway transportation，to develop the hub function of highway main hub in comprehensive transportation system fully． References | Related Articles | Metrics

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Fuzzy overall evaluation model of investment risk at infrastructure projec ZHOU Gao-ping， ZHOU Zhi， CHEN Yuan-xiang 2005, 24(1): 107-111.  Abstract ( )   PDF (187KB) ( )   In this paper, indicator system of investment risk at infrastructure project is constituted. Then, using analytic hierarchy process (APH) and fuzzy evaluation theory, the Fuzzy Overall Evaluation Model of Investment Risk at Infrastructure Project is established, which can be used to synthetically evaluate the investment risk grade of a infrastructure project, and provide basis for completion of the investment decision. References | Related Articles | Metrics

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Function quality and surveying principle of electronic digital level ZHOU Zu-yuan 2005, 24(1): 112-116.  Abstract ( )   PDF (245KB) ( )   The electronic ditallevdwas pushedout in 1990；its appearinghas reformedl method to traditional me．Its ne principlesition,arlsfornl the opticalimaging from barcode of leveling stafin to did decmnieimage and then processes them．Its advantage is able to avoid the estion error of surveyor's eye and to heighten greatly precision and work eficiency． References | Related Articles | Metrics

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Trend on fluvial process of dock works reach in zhuankou in wuhan XU Fang, YUE Hong-yan 2005, 24(1): 117-120.  Abstract ( )   PDF (201KB) ( )   Zhuankou special dock works ofthe commodity cal"installed rollers locate at the Baishazhou braided reach in Wuhan Reach．The characteristics of the sand Scour and deposit in the past years ale analyzed on the planed dock works reach．The results indicate that in the near many years，river regime heal-the dock reach is stable，the place ofthe bank hne，the lwge and the bank shoals ale steady relatively，the bank line and water flow are smooth．In diferent hydrograptfie years the alteration change of the sediment scour and deposit win still Occur in the pemal bars and shoals．But the great change ofthe river regime will not happen．The fiver bed is relativdy stable in the most years and has the water area situation of constructing the dock． References | Related Articles | Metrics

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Numerical simulation study of boil-vortex flow GUO Yan-xlang， PENG Kai 2005, 24(1): 121-124.  Abstract ( )   PDF (160KB) ( )   Inthis paper，3-D numerical simulation for boil-vortex flow is studied with ke mode1．A partial cell Ireter to treat irreg boundary and VOF method forfree water 81Lrface are adopted ．The computationalople shows that results computed coincide with data mea． sulL verywel1 References | Related Articles | Metrics

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Comments on color design for the modelling of ship YU JIA-Hu 2005, 24(1): 125-127.  Abstract ( )   PDF (169KB) ( )   Function and beauty are united in the work of ship modelling and color design is the important in the work． This paper ex． pounds the thoughts and methods to design colorfor modeling of ship from following aspects，including psychological filing， function，exterior andinterior． References | Related Articles | Metrics

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A measurement method of characteristic parameters of linear system FU Xiao-lin， CHENG Li-rain 2005, 24(1): 128-131.  Abstract ( )   PDF (214KB) ( )   Based on virtual Electronics Workbench．the first-order and second-order linear system characteristic parameters aye measured in this paper．The measuring process is visual and real-tit and tile results ofmeasurement exact and reliable ． The work oftile measurement has been proved to be very successful References | Related Articles | Metrics

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Discussion on related problems for polutant Control of gas Combustion 2005, 24(1): 132-133.  Abstract ( )   PDF (157KB) ( )   ：One of importantmeansin atmospheric pollution controlis optimization controlfor combustion process． Based onthe analysis ofpro． duced pollution，it that the key of ensuring suficient combustion is proper ratio between air and gas．In the paper，taking example in which combustion process is controlled in heating furnace of rolling．It discuss such as object properties of complicated combustion process． References | Related Articles | Metrics

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in industrial furnace YU Xing-dong ， XIONG Wun-qiang 2005, 24(1): 134-137.  Abstract ( )   PDF (216KB) ( )   The shortage of water is very serious in our country as well as in the world．The water resou is fairly adequate in Q科lgqiI1g．But with the problem of bad habits in water，the functional shortage ofwater becomes more and mole serious．Therefore industrial enterprises should voluntarily tlail fonll their minds for stengthenmg the consciousness of water-saving and pollution-reducing，protect- ing the natural lP．SO 12 de$and optimig the ecolo6cal environment．To do,SO．We could erls the SUCOE of the project for diverting water from the south to the north and the sustainable development of the economy References | Related Articles | Metrics

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Set up the new structure of the chinese rmancial model analysis ZHENG Ji 2005, 24(1): 138-142.  Abstract ( )   PDF (291KB) ( )   Th e theory of Complex System ，which is widely used in the field of natu science ， is introduced in the paper．The writer L1 it to define the financial mode1．Th e financial model is a complex system，composed of some factors such as government ， bank institutions。 enterprises and scotty market．And on the basis，the paper set up a new structure ofthe financial model analysis。including the internal sys． tern and the external system．Th e writer hopes that the paper can ofers a f w commonplace remark8 about the theory ofcomplex system in the 6eld of social science ，80 that others may come uD th valuable opinio118． References | Related Articles | Metrics

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The convergence and improvements of BP neural network LIN Ying， XIONG Qin-yu， FENG Yun-yi 2005, 24(1): 143-145.  Abstract ( )   PDF (133KB) ( )   The BP(back propagation)0rit is a neural network learning，it is extensivdy in function approximation， mode distirIgIlishing，classification，data compression et，but it has a question ofconvergence．In this paper，based on deseribie the principle 0ftlle BP algorithm，the convergence is discussed dcerdy，and several improvements to BP neural network arc proposed． References | Related Articles | Metrics

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The existenceand approximations theorem for approximations couple fixed point of semi compact nonexpansive mappings ， XIONG Qin-yu3， FENG Yun-yi 2005, 24(1): 146-148.  Abstract ( )   PDF (85KB) ( )   In the paper，We have obtain the existence and the theorems for appre~ nafions couple fixed point of semi compact n0nexpansive mappingscomplete metric space References | Related Articles | Metrics

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Convergence of the ishikawa type iterative sequence for asymptotically quasi-nonexpan~ve mappings with errors in convex metric spaces ZENG Yo~g-qin， PENG Yong 2005, 24(1): 149-151.  Abstract ( )   PDF (95KB) ( )   Inthis paper，Wewill prove a s,,flcient and nt essaIy conditionforIshikawatypeiterative ：qiter，ceof asymptotically quasi-nonexparve mappings with enore to converge to fixed points in convex．where need not be continuous． References | Related Articles | Metrics

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Nil-solution for nonlinear boundary value problem under the ambrosetti-prodi type condition FENG Chun 2005, 24(1): 152-154.  Abstract ( )   PDF (97KB) ( )   In this paper．we use strict upper and lower solutions and degree to establish the nil-solution under Ambrorition. prodicontitiom for nonlinear boundary Value problem，we discussed the rangel of parameter with nil-solution References | Related Articles | Metrics

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The linear methods for solving a group of nonlinevr integral equtions in reproducting kemel space FENG Chun 2005, 24(1): 155-157.  Abstract ( )   PDF (90KB) ( )   In this paper，we use the reproducting kernel Method to nonlinear integral equation into a 2-dimension linear intil equation for solving·We also the factorization method and the characteristic value Method to solve this nonlinear intion． References | Related Articles | Metrics

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Educational method of inverse thought in mathematical proof WANG Bin 2005, 24(1): 158-160.  Abstract ( )   PDF (139KB) ( )   Inthis paper weintroducedthe concept finvea,thought educationalmethodinmathematical proof，anadysedits ctllreir pro0f，studiedthe dialectical relation thoughtfultraining and ability development ， listed some classical examples abouttraining and devdoping mathematical inverse. References | Related Articles | Metrics