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1 什么是快拆模板体系 模板快拆一般是指梁、板、拱之类的水平结构模板提早脱模。国家标准《混凝土结构工程施工及验收规范》GB50204-92中规定,板跨度不大于2m时,混凝土强度达到50％的设计强度时方可拆模;跨度在2.0m-8.0m时,拆模时混凝土强度达到75％;大于8.0m时,拆模时混凝土强度要达到100％。由此可知,如果将板的跨度减小,则拆模时的混凝土在规定强度允许范围内可以降低,拆模时间可以提早。模板快拆的基本原理就是在施工阶段把结构件跨度人为划小,降低其内力。
1 What is quick release template system Quick release generally refers to beams, plates, arches and the like horizontal structure template early demoulding. National Standard “Construction and acceptance of concrete structures engineering” GB50204-92 stipulates that the board span of not more than 2m, concrete strength reached 50% of the design strength before demolding; span 2.0m-8.0m, demolding Concrete strength reached 75%; greater than 8.0m, the strength of the concrete to be removed when the mold to reach 100%. It can be seen that if the span of the plate is reduced, the concrete at the time of disassembly can be reduced within the allowable range of the prescribed strength, and the disassembly time can be earlier. The basic principle of quick-release template is the construction phase of the structure of the human body to draw a small plan, reducing its internal force.