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15 December 2005, Volume 24 Issue 6 Previous Issue    Next Issue

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Study on construction control project for Chongqing Shibanpo bridge HUANG Hai-dong, XIANG Zhong-fu, LIU Zhi-hui, SHUN Jun-ling, QANG Lu 2005, 24(6): 1-4,13.  Abstract ( )   PDF (236KB) ( )   The Shibanpo bridge lies in the main district of Chongqing, the structure is the co-operation system of rigid frame bridge and continuous beam bridge, the main span is the longest one in the world. According to particularity of the bridge in design and construction, give emphasis to study on computation models of creep shrinkage, temperature deformation and three-dimension linetype control, based on the common construction control method. Related Articles | Metrics

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The transverse distribution of load and practical calculation of box-slab arch with long-span XIANG Zhong-fu, WANG Jia-lin, ZHANG Xue-song, SUN Shu-hong 2005, 24(6): 5-9,17.  Abstract ( )   PDF (281KB) ( )   A practical method of was used to calculate lateral load distribution in the box-slab arch bridge based on the model test and numerical analysis for the transverse distribution of load of slab arch bridge. Related Articles | Metrics

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Research on mechanics behavior of irregular box-girder bridges CHEN Han-xin 2005, 24(6): 10-13.  Abstract ( )   PDF (193KB) ( )   United with the project of Chongqing Jiangnan intersection, the paper introduces a method of spatial theoretic analysis of irregular box-girder bridges, and presents the paralleled numerical values between the theoretical and relevant static-load experimental outcomes under each working condition. These values are given in order to examine the feasibility and reliability for the calculanting method of irregular box girder by the ANSYS simulator program in relevant bridges, and to draw some conclusions as references. Related Articles | Metrics

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Inquiring into method of raising adjective evaluation on resistance of bridge GAO Fei, SHI Shang-wei, YANG Hua-gang 2005, 24(6): 14-17.  Abstract ( )   PDF (174KB) ( )   The precise evaluation in resistance of bridge is a important task and load test is important content of it. On the basis of testing a lot of bridges, in order to get scientific and safe testing technology, the writer analyses the common issues of bridge testing precision and precise evaluation in resistance of bridge. The result of analysis is useful in practice. Related Articles | Metrics

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Analyses method about real values of stress in bridge construction survey ZENG De-rong 2005, 24(6): 18-20,24.  Abstract ( )   PDF (173KB) ( )   This paper discusses the elements of stress error in bridge construction survey, it gives the methods which analyiz the error, some suggests about construction survey are posed and may be used for new bridge construction survey. Related Articles | Metrics

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The analysis of temperature influnece on empty shape of suspension bridge ZHANG Yong-shui, LUO Hong, WANG Zu-hua 2005, 24(6): 21-24.  Abstract ( )   PDF (194KB) ( )   Temperature have comparatively big influence on the empty cableshape of suspension bridge,durning the building of the empty cableshape,temperature play the roles that not only changing the length of the cable,but also causeing the deflextion of the main tower,and both of them lead the changing of the cableshape. In this thesis,I analyse the temperature influnce on the cableshape, and based on this, I provide the designed programes for counting the cable shape and the deflexion of the main tower,with examples and instruction, as reference for technicians of bridge building. Related Articles | Metrics

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Passing program designing and practice on the heavy-duty equipments of Baihe power station which have to pass bridges and culverts MENG Yun, FU Xin-hua, PENG Zuo-jun 2005, 24(6): 25-28,43.  Abstract ( )   PDF (225KB) ( )   Carrying the heavy-duty equipments of Baihe power station to the factory have to pass 121 bridges and culverts. If using the traditional methods to consolidate all the bridges and culverts, the lose of economy is gigantic. Not only because of the big investment and long project time limit, but also electricity generating will be delayed. Through the repetition testification, employed the scheme which included direct pass, erected the temporary steel bridges, consolidation and supplying the intensity. This scheme can carry the equipments to the factory economically, quickly and safely. Moreover, it started a referential new way for interior of country heavy-duty transportation. Related Articles | Metrics

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Application of vacuum grouting in Rongqiao bridge XIAO Guang-hong, ZHANG Qiu-ling 2005, 24(6): 29-30,43.  Abstract ( )   PDF (138KB) ( )   Base on the construction practice of post-tension prestressed concrete, the common method of grouting can not make the grout mass that can be got by vacuum grouting. The vacuum grouting method is continuously used in post-tension prestressed concrete in recent years and this paper introduce the new construction technology of vacuum grouting according to the construction experience of Rongqiao bridge in the Chongqing city. Related Articles | Metrics

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Visible and dynamic simulation research on arch bridges construction CHEN Zheng-bin 2005, 24(6): 31-35.  Abstract ( )   PDF (216KB) ( )   Computer simulation of arch bridge building development is a dynamic research on arch bridge construction conducted with Motion and Video Posts modules of 3DS MAX 6.0. The result visibly shows the building process and the characteristics of arch bridge construction technology. The research can supply more exact data for the feasibility study and planning analysis of arch bridge construction scheme. Related Articles | Metrics

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Application of grouting technique in Longtan super long tunnel CHEN Zhang, CHEN Guang-ming, CHENG Jiu-sheng, HU Yi-hua 2005, 24(6): 36-39,54.  Abstract ( )   PDF (239KB) ( )   Longtan tunnel is a super long tunnel, about 8.7 km long, in the main route of Hu-rong national highway from Yichang to Enshi. Considering preventing disaster and underground water protection and so on, it used grouting technique. And the result is applicable for actual engineering. Related Articles | Metrics

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Experimental study about short concrete column limited with GFRP YANG Qing-guo, YI Zhi-jian, HE Xiao-bing, MA Yin-hua 2005, 24(6): 40-43.  Abstract ( )   PDF (221KB) ( )   Glass Fiber Reinforced Plastics(GFRP), a new kind of engineering material is widely used in civil engineering to strengthen old structures. The article studies the performances of short concrete column limited with GFRP under axial load in lab and compares them with that of short common concrete column and concrete column with spiral reinforcement. Experiments show that under axial load the short concrete column limited with CFRP has an amazingly higher lording capacity. The article is helpful to use the concrete column limited with CFRP and strengthen old column with CFRP. Related Articles | Metrics

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Research on clear protective thickness of the concrete under the prestressed steel for thin-wall box-beams XU Yong-mei, ZHOU Zhi-xiang, SHEN Xiao-jun 2005, 24(6): 44-47.  Abstract ( )   PDF (178KB) ( )   Based on the experiment of a 30 m-span prestressed concrete thin-wall box-beams, the reason why the longitudinal cracks appear along prestressed steel during the tensioning is analysed. For thin-wall box-beams prestressed element, the disadvantaged influences resulted from both possion effect and opposite acting force due to the deformation of beams is considered while the needed longitudinal prestress is acquired. And the model from the engineering design's viewpoint is established. And a formulation of the protective thickness of the concrete under the prestressed steel has been suggested. Related Articles | Metrics

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Analyses on the reliability of concrete filled steel tubular beam-columns in highway engineering TU Ling, LIU Xiao-yu 2005, 24(6): 48-50.  Abstract ( )   PDF (145KB) ( )   According to "unified standard for reliability design of highway engineering structures" GB/T50283-1999, the reliability of the formulas for the design of CFST beam-columns is analyzed, which is given in the "Code for design of steel-concrete composite structure" DL/T5085-1999. The result shows that the reliability of the formulas can meet the requirement of reliability index set in the GB/T50283-1999. Related Articles | Metrics

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The method on estimating fatigue surplus life of transversely tensioned prestressed concrete in the loading of mutil-leveling changing scope ZHENG Yi, XIANG Yang-kai, ZHOU Zhi-xiang, WANG Tao 2005, 24(6): 51-54.  Abstract (