Bridge deck template

The applicable scenarios for bridge deck templates include: 1) Divided by Bridge Type ① Highway bridges Suitable for prefabricated bridge deck construction with standard spans, especially in the range of 20-35 meters, the combination structure of small box girders and hollow slabs can improve construction efficiency. Steel formwork is commonly used for batch prefabrication of standardized highway bridge decks, balancing economy and forming quality. ② Elevated railway and light rail bridges Box girder structures are commonly used, and the formwork needs to adapt to the continuous cast-in-place process of prestressed concrete or steel box girders, meeting the requirements of large spans (over 50 meters) and complex loads. 2) Select according to construction technology ① Prefabricated assembly construction Suitable for projects with tight schedules such as urban overpasses and overpasses, templates need to be equipped with automated production lines to support batch prefabrication and rapid hoisting of bridge decks. ② Cast in place construction In irregular bridge decks or large-span continuous beam bridges, adjustable formwork systems should be used in conjunction with scaffolding support for segmented pouring, such as in special scenarios such as curved bridges and variable cross-section bridges. 3) Special structural requirements ① Wide bridge deck and widened section The template needs to have horizontal expansion function to adapt to the gradually changing area of the bridge deck width, which is commonly seen in interchange ramp bridges. ② Landscape Bridge Choose steel templates or customized molds with high surface smoothness to ensure a smooth and beautiful appearance of the bridge deck, suitable for urban landscape bridges. 4) Material and Function Adaptation ① Steel formwork Suitable for projects with high reuse rates, such as standardized highway bridge deck prefabrication, it has the advantages of strong wear resistance and convenient demoulding. ② Composite template In steel-concrete composite structures, a temporary formwork system supported by steel beams is used to assist in the cast-in-place of concrete bridge decks. 5) Economic scenario ① Small and medium span bridges Prioritize the use of standardized small box girder matching templates to reduce mold amortization costs, especially suitable for county-level highway renovation projects. ② Long span bridges Adopting a segmented prefabricated formwork system to reduce on-site pouring time and improve construction efficiency with incremental launch technology.