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15 July 2006, Volume 25 Issue 增刊1 Previous Issue    Next Issue

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Study of super-wide slab arch bridge by three deminsion body ZHANG Zeng-ya，ZENG De-rong，WANG Lei 2006, 25(增刊1): 1-3.  Abstract ( )   PDF (157KB) ( )   When the width is very close to or much greater than the span of slab arch bridge．it is called Super-wide Slab Arch Bridge．Its problems according to beam theory are presemed and a space FEM model is estabhshed by MIDAS／Civil software．The influence surface and live load application are computed with MIDAS software according to{road and bridge design general standard(JTG D60-2004)>，and the computing result is compared with that of simplified model of FEM plane frame．Its conclusion maybe become the basis of design and disease anlysis of Super-wide Slab Arch Bridge． References | Related Articles | Metrics

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Study on the stability influence of the angle of toe-in of the arch rib ZENG De-rong，ZHANG Qing-min 2006, 25(增刊1): 4-8.  Abstract ( )   PDF (247KB) ( )   The lateral stability of large span arch bridg is almost absolutely in charge of the safety of construction and a bridge with the increase of the bridge span．X-style arch Bridge Can improves the lateral stability of a bridge．In the paper．according to linear elastic theory and geometrically nonlinear behavior，the lateral stability of CaiYuanBaYangtse Bridge is analyzed and calculated by the finite element of space beams and cables．At the same time．the stability influence ofthe angle of toe-in of the arch rib is explored by the analysis the finite models．It gets the suitable values ofthe angle of toe-in ofthe arch rib that have great influence on the lateral stability and the resoults may be used as a base of design of X-style arc bridge． References | Related Articles | Metrics

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Application of composite strengthening for stone arch bridges in special transportation MEN Yun，LIANG Chuan-bo，QI Zhi-he 2006, 25(增刊1): 9-11.  Abstract ( )   PDF (152KB) ( )   The special loads during many special transportations such as in the construction ofthe power house overstep the scope of the carrying capacity of those former stone arch bridges that were designed for general loads．Taking Shahe Bridge as an example，the composite strengthening for stone arch bridges by pouring reinforced concrete that steel wire net and steel fiber included (3-steel concrete for short)and sticking steel plate is presented，and the trailer with 240t loads Wns successfully transited． References | Related Articles | Metrics

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Research on strengthening technology of stone arch bridge based on dead load adjusting of spandrel structure WANG Peng，ZHOU Jian-ting 2006, 25(增刊1): 12-15.  Abstract ( )   PDF (178KB) ( )   Reinforced concrete confining method based on dead load adjusting of spandrel structure is expatiated in the paper；besides the engineering measures of dead load adjusting are stated．Through the comparislon of the survey of the arch eLLrve variety,the strengthening practice achieves tangible results．The effectiveness shows that the strengthening method is applieable and reliable and it could be a successful practice for repairing and strengthening the similar bridges． References | Related Articles | Metrics

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Study on computing model for the bearing capacity of the stone arch bridge strengthened by composite main arch circle method PANG Guo-dong，ZHOU Jian-ring，LI Yue-ju 2006, 25(增刊1): 16-18.  Abstract ( )   PDF (200KB) ( )   Based on the twice-force state ofthe strengthened structure and the mechanical properties of new-old materials，the ultimate state of the main arch circle strengthened by composite main arch circle of the stone arch bridge method is analysed．And the computing model for the bearing capacity ofthe strengthened stone arch bridge in the principle ofthe structure ultimate state is figured out，which is available for reference to the engineering design． References | Related Articles | Metrics

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Prestressed concrete box beam crack origin analysis SHUI Ming-hong 2006, 25(增刊1): 19-20.  Abstract ( )   PDF (109KB) ( )   According to the practical experience of box-beam construction of the 9th contract section named Zhenling-Shengjinguan Highway，the causes and preventine measures to the continuous box-shap crack are introduced． References | Related Articles | Metrics

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Design and practice of solving 323 ton heavy-cargo by temporary steel bridge to pass bridge of span 16m MENG Yun，QI Zhi-he 2006, 25(增刊1): 21-23.  Abstract ( )   PDF (191KB) ( )   Appling temporary steel bridge is a method of passing bridge which span is not bigness in heavy-cargo transportation．This paper introduces a method with temporary steel bridge combined with original bridge could solve the original bridge not carrying enough capacity．when 323 ton heavy-cargo pass bridge whose span is 16m in Yanjia chemical plant of ehangshou district is applied．This pass programe save much consolidating cost and gained great benefit．This paper introduces the whole design and calculation of temporary steel bridge． References | Related Articles | Metrics

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Design and Installation of Hanging Basket of Fuling Wujiang Second Bridge WANG Hao，XIAO Guang-hong，ZHANG Qiu-ling 2006, 25(增刊1): 24-27.  Abstract ( )   PDF (209KB) ( )   The design of the separate and post-fulcrum hanging basket of Fuling Wujiang second bridge is described．The installation order of the hanging basket's components according to the actual condition of construction field is in trod uced，Introduced and several problems in the installation are talded about． References | Related Articles | Metrics

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Research of damage testing of bridge by curvature model DU Xiao-yan，LIU Kui，ZHANG Yang 2006, 25(增刊1): 28-31.  Abstract ( )   PDF (222KB) ( )   Considering that curvature mode shape can identificate the damage of sturctures and locate it．the theoretical basis of curvature modal an alysis is discussed emphatically in the paper．And considering that curvature mode shape can identify the damage of structures much sensitive，the theoretical basis of curvature modal analysis is discussed emphatically in the paper． The plications of curvature modal analysis in which should be regarded in the actual and conclusion are given． References | Related Articles | Metrics

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Summary of seismic analysis for bridges YU Qi，CHEN Yu，WANG Jia-1i 2006, 25(增刊1): 32-34.  Abstract ( )   PDF (170KB) ( )   This paper summarizes computer method of seismic analysis for bridges．Confirmable method includes,elasticity static method ，static-plastic analysis，response spectrum method and time history scheme；Seismic analysis of probability includes：the random vibration and the pseudo excitations method．This paper discuss the virtue and defect about these methods．The keystone and trait of the pseudo excitations method are paticularly presented．At last we bring forward some questions needing further study． References | Related Articles | Metrics

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Analysis on the influence of orders of construction on the stru ctural internal force in continuous beam bridge erected by many of simply supported beanls GAO Yun-feng，YE Yuan-fen 2006, 25(增刊1): 35-37.  Abstract ( )   PDF (182KB) ( )   System transformation exists in construction of continuous erection by many of simply supported beams．In the construction stage，structural internal force varies according to various orders of construction．A 5一span 30一mile length box—girder bridge is taken as an exam ple and 15 diferent kinds oforders ofconstruction are carried out to analyze．It is shown that the sequence ofcasting monolithic deck first then casting wet joint or the sequence of casting monolithic deck and wet joint alternately is much better to structure．What more，the internal force can be influenced by tension sequence oftendons at beam end． References | Related Articles | Metrics

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The comparison of the non-nodal connection method and the steel-arm method GAN Ting-yong，WANG Jia-lin 2006, 25(增刊1): 38-39.  Abstract ( )   PDF (184KB) ( )   In this paper，the non-nodal connection method and the steel-arm method are introduced．According to the comparison the two methods，there is a result that the non-nodal conection method is a more widespread method of limited dements．Through the comparison of the numeric computation with the non-nodal conection method and the numeric results with the analytic results，the correctness and accuracy of the technique is verified and its convenience is demonstrated． References | Related Articles | Metrics

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Stability analysis about wall rock in Baxian rock tunnel construction ZHU Da-quan，WEI Jian-ming 2006, 25(增刊1): 40-43.  Abstract ( )   PDF (200KB) ( )