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Fuzhou hole Hongtang Bridge design and construction of the substructure


Part is inclined world, the construction height is larger for the ease of construction and to meet the other requirements in the case, the use of scaffolding for the construction shown in Figure 6 + using Bailey as a good load-bearing assembly bracket. The load transfer to the cap in the top bracket to install steel and wood hybrid Bailey bracket assembly used to maintain the accuracy of the template and load to bear part of the concrete for pier in the construction of a good solid erection covered top Bracket. First for fixed installation + V limb inner surface of the template followed by the bracket assembly as a temporary work platform and some material dumps operation area of construction workers in part because of its hollow limb V small cross section, reinforced, prestressed pipe layout-intensive, To ensure the quality of concrete placement, the use of gravel as the coarse aggregate 2o111. Hollow concrete pier designed for V 10, in order to facilitate pouring concrete. To achieve early strength, high quality requirements, the construction of the FDN by mixing 0.3 ● ● ● ● A 7 4 (Total 77) l992 chop on August 20, although water pulley East Road E1, SFCH1NAH1GHWAYNo. 4 (FotalNo.77) August1992tftItttttttIftttttttIttttttttt = ttttf'I ■ i no internal force Slab double B-spline function: It,: Mexico - One Man Chan Chin Fort Guangdong Provincial Highway Design Institute Uf. L-: ■ 【Abstract】 A ---- a ten feet long with dual B-spline function as the thin letter of the displacement field interpolation deposited, and thus no problem Slab systematic analysis of internal forces of this century law applies to non-polar bridge girder Holland in a variety of loads in the force analysis shows that the long side of the text operator reliability of the method. Slab is not used to calculate the worth of a numerical analysis method to promote the introduction before the overpass and highway overpass in the city. r pan application no slab structure,[link widoczny dla zalogowanych], no beam plate with a compact structure. Small weight. The upper part of the structure of the bridge can greatly reduce the building height. To obtain better results and significant construction cost slab without beam theory analysis. Document 1] simply supported at both ends of the middle four columns supporting the structure of rectangular flat-slab deflection function by trial and select the method were carried out force analysis. However, this classical method has limitations. In addition, [2] on the flat-slab structure using finite strip method; literature E3] carried out against non-Test Slab analysis and finite element juice. And so on. According to the information I have days. Again on the flat-slab structure was analyzed and discussed, is launching a double B-spline function of internal force of B-free beam plate spline finite strip method and compared with the easy to deal with but also boundary conditions, the ability to approach the text at this rate is instantaneous flat-slab design of the small statue of a derivative of the total value of sub-effective folding a sheet structure established for the displacement functions array plate shown in Figure 1, its edge treatment to + Ⅲ + n · IJJ ~ JJi · j ● Ⅲ ● + Ⅲ 1j ● 11 + II + ● ·】】 + \】】】】 l ● + IJJ ~ JI +】 1. ¨ · IJJ ~ JI + j Shui Jing, the use of the water-cement ratio is 0.43. hollow limb part of the V-mode and then mixed with the core welding steel, pouring concrete filled perfusion hole concrete work is very difficult construction operator needs a high degree of high pier cap construction,[link widoczny dla zalogowanych], the original frame by holding down the two plug-in vibrators into the hollow wall of vibrators V limb plus to three, in order to improve Concrete transport speed. concrete. f) Prestressed pull d) V solid limb construction method of construction this part of the basic limb V with the same hollow, but increasing the height of the bracket according to the requirements of construction to a certain height. meet the requirements to be concrete can be done after the construction of pier cap. e) applied a two pier cap construction of the first pier cap construction platform for erection. and then to install the template, reinforced. As for the hollow structure of pier cap, remove the core module for the construction of the pier cap End to end the first stay was a hole,[link widoczny dla zalogowanych], hole reinforcement were being cut. until construction is completed pier caps. obtain V V-piers limb portion to withstand the tensile stress in each pier were arranged 24 to 4O 5 Prestress Cable . shown in Figure 6. prestressed cable an anchor leg in the V bottom, another anchor at the pier head crowns surface. stretching a single pull tension head end located in the crowns at the pier. ZB4 tensioning equipment / 500 electric pump. the original design considerations pier cap construction is completed longitudinal tension pier cap beam 24,[link widoczny dla zalogowanych], 4,[link widoczny dla zalogowanych], 5 PC. construction to facilitate the construction of the actual situation of the upper truss structure to be assembled together when the tension. At this point v-type pier facilities]: complete I3 ·
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