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通过分析防火封堵的施工部位,及其采用材料与技术参数,采用重量轻的材料,对过梁、管线、管线保温层造成压力小,不会使管线受压变形。通过采用防火涂层板、膨胀型防火密封胶等材料并使用分割式施工方法进行防火封堵,使防火隔墙部位的封堵具有良好的气密性及水密性,确保满足设计规范所要求的耐火极限3 h。
By analyzing the construction site of fire blocking, and adopting the materials and technical parameters, using light weight materials, the pressure on the lintel, pipeline and pipeline insulation is small, and the pipeline will not be subjected to pressure deformation. Through the use of fire-retardant coating board, intumescent fire sealant and other materials and the use of split construction fire blocking, the fire wall parts of the block with good air tightness and watertight to ensure that the design specifications to meet the requirements Fire resistance 3 h.