A kind of construction method of up-type mobile formwork high-altitude variable bridging length
A construction method and technology of mobile formwork, which is applied in the direction of erecting/assembling bridges, buildings, bridge construction, etc., can solve the problems of increasing the installation and dismantling workload of mobile formwork, increasing the construction risk factor, reducing construction work efficiency, etc., and shortening the construction time The construction period of the box girder, the improvement of construction efficiency and quality, and the effect of improving construction efficiency
Active Publication Date: 2022-07-15
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
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Problems solved by technology
However, the conventional processing method will greatly increase the construction cost in actual construction, increase the installation and disassembly workload of the mobile formwork, reduce the construction efficiency, and increase the risk factor of construction
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[0056] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0057]According to the different ways of through holes, the mobile formwork can be divided into three types: upward mobile formwork, downward mobile formwork and composite mobile formwork. The main beam of the mobile formwork is above the cast-in-place box girder, and the upward moving formwork is displaced by the completed box girder and bridge pier. The upward moving formwork used in the present invention can be the up...
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The invention relates to an upward-moving formwork high-altitude variable bridging length construction method. The construction method includes the following steps: (1) the step of preparing for construction before the span change; (2) the step of connecting the hanging system and the side formwork support system to the height: including the step of connecting the hanging system to the height and connecting the side formwork to the height. The steps of connecting the support system to the height; (3) the step of connecting the bottom mold system longitudinally; (4) the step of connecting the moving mold base longitudinally through the hole; and (5) the step of connecting the side mold to the height and length. Compared with the mobile formwork with two corresponding spans, the invention shortens the construction period of the box girder, improves the construction efficiency and quality of the box girder, and saves money. Box girder construction costs. By adjusting and adding the corresponding hanging system, support system and formwork system, the construction of box girder with different spans can be realized without the need to change the structure of the original formwork by a large amount, and the transformation method is simple and feasible.
Description
technical field [0001] The invention relates to the technical field of bridge construction, in particular to an upward-moving formwork high-altitude variable bridging length construction method. Background technique [0002] The Pingtan Strait Road-Railway Bridge is the first cross-strait road-railway bridge in my country. The Haixia Bridge is different from the previous bay bridges, and its construction is faced with harsh conditions such as strong winds, high waves, surges, strong typhoons, and complex geology. In particular, the Pingtan Strait is one of the world's three famous storm waters. The construction of the bridge brings enormous challenges and high risks. This bridge is the first attempt in the field of cross-strait bridges in China. Whether it is the harshness of the environment, or the technical challenges and construction risks it faces, it far exceeds other cross-gulf bridges that have been built or are under construction in China. The Pingtan Strait Highwa...
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IPC IPC(8): E01D21/00E01D2/04E01D101/26
CPCE01D21/00E01D2/04E01D2101/26
Inventor 刘宏达杨龙杨党国赵进文李源黄德利皮军云季袁飞朱雷郑权卯利君张志选杨文杰李鑫靳旭东张小锋张小平林文强钟祺张路伟徐菲许进
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD