The utility model discloses a fireproof isolation belt structure between the curtain wall layer, including building floor, support burial piece, curtain wall and curtain wall hanger. The roof of building floor and curtain wall is filled with fireproof cotton layer. The top of the fireproof cotton layer between the seams is flat on the top of the building floor, and the top of the fireproof cotton layer between the seam is also covered with one layer. The steel back plate on one side of the fireproof cotton layer between the seam is set with a deformation stiffener, and a fireproof cotton layer is set below the fireproof cotton layer between the seam, and the outside is closed by the aluminum foil belt. This structure provides fire-proof protection to the supporting members such as the vertical column of the curtain wall, and cooperates with the fire filling and sealing of the cracks in the floor, effectively eliminating the defects of the pre deformation of the supporting members of the curtain wall of the traditional curtain wall after the fire and the opening and falling off of the gap sealing, so that the curtain wall system is made. It is more fire-resistant and stable, and has good effect on building fire prevention and smoke blocking. It is used in curtain wall structure field.
【技术实现步骤摘要】
一种幕墙层间防火隔离带构造
本技术涉及建筑幕墙领域,特别是涉及一种幕墙层间防火隔离带构造。
技术介绍
现有的幕墙层间防火封堵构造方式,通常采用防火棉等填充楼板间隙,或再辅以有机堵料做面层保护。例如,公告号为“CN203499059U”的中国技术专利,公开了“一种单元式幕墙防火封堵结构”,其通过一种防火密封件,一端固定在幕墙组件上,另一端固定在楼板上,进行防火隔离。再如,公告号为“CN203499058U”的中国技术专利,公开了“一种幕墙层间防火结构”,其通过结构楼板和幕墙横梁之间设置防火岩棉,在防火岩棉顶部涂设一层防火密封漆以实现防火封堵。上述单纯采取缝隙填塞的幕墙防火封堵方式存在缺陷,由于未进行幕墙组件的防火保护,幕墙构件防火性能较差,在火灾高温作用下构件强度的损失很快,铝合金在250℃下其抗拉强度降低50%,到370℃时其抗拉强度几乎全部损失,钢材在500℃时的抗拉强度降低至50%,600℃时为30%,1000℃时完全失效。期间金属的硬度、疲劳性能也同步下降,因而仅采取对缝隙的防火封堵,存在幕墙体提前变形破坏,导致防火隔离带未达到耐火极限就已失效的问题。技术内 ...
【技术保护点】
一种幕墙层间防火隔离带构造,其特征在于:包括建筑楼板、固定在所述建筑楼板上的支座埋件、安装在所述建筑楼板侧面的幕墙体和连接在支座埋件与幕墙体间的幕墙挂件,所述建筑楼板与幕墙体的间隙内填充缝间防火棉层,所述缝间防火棉层的顶部与建筑楼板的顶面平齐,所述缝间防火棉层的顶部还涂覆有一层有机防火堵料层,位于所述缝间防火棉层的下方设有贴覆在幕墙体立柱外侧的立柱防火棉层,所述立柱防火棉层外通过铝箔带封闭,所述铝箔带的顶部也封闭在缝间防火棉层的底部。
【技术特征摘要】
1.一种幕墙层间防火隔离带构造,其特征在于:包括建筑楼板、固定在所述建筑楼板上的支座埋件、安装在所述建筑楼板侧面的幕墙体和连接在支座埋件与幕墙体间的幕墙挂件,所述建筑楼板与幕墙体的间隙内填充缝间防火棉层,所述缝间防火棉层的顶部与建筑楼板的顶面平齐,所述缝间防火棉层的顶部还涂覆有一层有机防火堵料层,位于所述缝间防火棉层的下方设有贴覆在幕墙体立柱外侧的立柱防火棉层,所述立柱防火棉层外通过铝箔带封闭,所述铝箔带的顶部也封闭在缝间防火棉层的底部。2.根据权利要求1所述的幕墙层间防火隔离带构造,其特征在于:还设有位于幕墙体的立柱间的柱间防火棉层,所述柱间防火棉层外贴覆有钢背板,所述钢背板连接在两相邻的立柱间,所述钢背板的内侧设有T型加...
【专利技术属性】
技术研发人员:刘时军,熊志强,刘柯东,张石桥,谢万春,
申请(专利权)人:广州艾力克装饰工程有限公司,
类型:新型
国别省市:广东,44
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