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15 July 2007, Volume 26 Issue 增刊1 Previous Issue    Next Issue

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Research on Stress Intensity Factor of the Concrete Crack Based on FEM ZHAO Wei，XIANG Yang-kai 2007, 26(增刊1): 1-2.  Abstract ( )   PDF (153KB) ( )   Through the FEM to research 3-D crack of a three point bent concrete beam，the viariation law of the stress intensi— ty factor K1 is got when it changes with the crack length and the load leve1．The correctness of the FEM is validated by compa ring with the existent formula．Finally，the simplified formula KI is generalized． References | Related Articles | Metrics

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Finite Element Analysis of Stability of Cable-Hoisting Erection SysteMof Long-Span Arch Bridge DENG Xue-tao，ZENG De-rong，ZHOU Yan-qi 2007, 26(增刊1): 3-7.  Abstract ( )   PDF (313KB) ( )   Based on theory of structural stability，the solution procedure and principle of finite element method are introduced in brief under the analysis of structural stability．With the finite element analysis．the stability of the tower is studied by taking the cable—hoisting erection system of the Wujiang River Bridge in the Pengshui City as engineering background．Through multlvle solution by iterative method．the critical load factors and buckling mode shapes of the tower are obtained under the most disadvantageous construction work condition，providing theories foundation for the construction control of that bridge． References | Related Articles | Metrics

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Study on Ultimate Value of Permanent Deformation of Stone Arch Bridge ZHOU Ke-wen ，CHEN Bin ， ZHOU Jian-ting ，LIU Si-meng ，LIANG Xiong ，ZHU Xiao-long 2007, 26(增刊1): 8-10.  Abstract ( )   PDF (212KB) ( )   The ultimate value of permanent lower deflection deformation was analyzed under the control section of diferent span spandrel—braced arch bridges by the structure calculation software Midas／Civil，and the permanent deformation allow— anCe calculation formula of lower deflection to spandrel-braced arch bridges of 25 m to 65 m span length was gained based on this foundation，which would facilitate basic engineers to assess bridge safety rate efectively and convenientely． References | Related Articles | Metrics

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Rationality of Computing the Twisting Moment of Cap Beams by Traditional Method WU Zu-lie ，CHANG Guo-qiang ，ZHOU Bing 2007, 26(增刊1): 11-13.  Abstract ( )   PDF (163KB) ( )   By computing the twisting moment of one cap beam by traditional and finite element method respectively ， the diferences between the two methods are got．A conclusion is drawn that the traditional method is to conservative to determine the twisting moment of cap beams．while the finite element method is relatively reasonab1e. References | Related Articles | Metrics

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Characteristics of Simply Supported-Continuous Bridge and Mechanical Analysis of Single and Dual Prop CHEN Shan-qin，MA Wen-yan 2007, 26(增刊1): 14-17.  Abstract ( )   PDF (494KB) ( )   From the support forms，the simply supported—continuous bridges have mostly two main structural forms：single prop and dual prop．To better exert the traits of the simply supported—continuous bridge and understand the mechanics of this bridge in diferent support forms，a mechanical analysis is made through the support sedimentation， temperature change and deviation of dual prop．Through the analysis．the relevant conclusions are educed and a consult to the correlative personnel for servicing the projects is siven． References | Related Articles | Metrics

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Method of Bridge Construction Process Analysis in ANSYS YAN Yi ，DU Peng ，GAO Ying-ZUO ， MA Wen-yan 2007, 26(增刊1): 18-21.  Abstract ( )   PDF (198KB) ( )   Taking the Chaotianmen Bridge for example，the method of using the ANSYS to imitate the bridge is introduced． Meanwhile．several methods of construction processes imitating in ANSYS discussed ．These methods include building at once，birth and death element and iteration，which are analyzed and constracted at last． References | Related Articles | Metrics

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Application of Bonding Steel Plate to Reinforcement of Stone Arch Bridge LI Yun-ling，MENG Yun 2007, 26(增刊1): 22-24.  Abstract ( )   PDF (215KB) ( )   Method of bonding steel plate in reinforcing bridge is often adopted．The method of bonding steel plate in reinforce ing stone arch bridges is introduced simply，and the calculation method and construction craft are studied detailedly． References | Related Articles | Metrics

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Exploration of a New Method to Bridge Damage Detection Calcualtion LIU Ji-zheng，ZHOU Zhi-xiang，CHEN Bo 2007, 26(增刊1): 25-27.  Abstract ( )   PDF (207KB) ( )   Based on a detection experience of a bridge，different test methods are introduced．The feasibility and theoretical basis of the dynamical detection which is applied to bridge detection are explored．A new method which can calculate the bridge's dynamical detection pmcisdy with finite element is suggested． References | Related Articles | Metrics

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Treatment Scheme for Initial Support Deformation in Left Line of Zhongxing Tunnel LI Peng-pai，DENG Cheng-yan 2007, 26(增刊1): 28-29.  Abstract ( )   PDF (183KB) ( )   The main load-bearing structure in NATM(New Austrian Tunneling Method)is initial support．The second lining establishes after the deformation of surrounding rocks and initial support the basis of the second lining—-has been basically stabilized．The Causes of the initial support subsidence in Zhongxing Tunnel are an alyzed．A method for renovating the subsidence is presented． References | Related Articles | Metrics

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Numerical Calculation of Influences of City Shallow Cover Tunnel Construction on Ground Building KONG Qiu-zhen ，XIE Feng ，YU Wu-jun ，LI Zhu 2007, 26(增刊1): 30-34.  Abstract ( )   PDF (377KB) ( )   With the construction of urban tunnd，mole and more shallow cover tunnels are passing through buildings．Applying three-dimensional finite dement to calc~ e ground buildings which cross the hog and sag districts，the deformation regu lar of diferent regional parts of the building Was obtained．These conclusions can be the valuable reference for the similar projects with tunnels close to buildings． References | Related Articles | Metrics

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Research on Structural Responses of Curbs by FEM CUI Peng，QUAN Hong-xi 2007, 26(增刊1): 35-40.  Abstract ( )   PDF (297KB) ( )   It is a serious situation that broken curbs result in bad pavement through investigations．Finite element program MSC．NASTRAN software package was employed to analyze the structural responses of curbs on low volume rural roads in different conditions．Several methods are proposed to decrease pavement damage caused by curbs，to provide the reference for curb design and construction． References | Related Articles | Metrics

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Factors Influencing Bituminous Road Roughness and Its Countermeasures WANG Qiao-ling ，LIU Fei 2007, 26(增刊1): 41-45.  Abstract ( )   PDF (359KB) ( )   The reason of bituminous road roughness is analyzed，and the relative countermeasures are presented．Then the ex perience to control the pavement roughhess，especially to control the asphalt is summarized．It will be useful to guide the de sign and construction of highway． References | Related Articles | Metrics

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Countermeasures to Prevent Embankment Longitudinal Cracks in Permafrost Region CIREN La-mu，WANG Qiao-ling 2007, 26(增刊1): 46-49.  Abstract ( )   PDF (276KB) ( )   Longitudinal roadbed cracks is One of serious disasters in permafrost region，which afects the riding quality and safe operation of roads．According to the characteristics of longitudinal cracks in this area，the preventing principle and concrete measures to sub-grade longitudinal cmcks in new constructive roads are presented．That will be useful to guide engineering practice． References | Related Articles | Metrics

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Experimental Research of Asphalt Mixture Making Fly Ash Instead of Powdered Limestone ZHOU Song-tao，YAN Feng 2007, 26(增刊1): 50-52.