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装配式钢筋混凝土楼板的特点谁清楚？

装配式钢筋混凝土楼板的特点谁清楚？

浏览：25次 | 提问时间： 07-03 04:12

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流年碎jonathan 07-03 04:13

您好，装配式钢筋混凝土楼板是指在现场依照设计位置，进行支模、绑扎钢筋、浇筑混凝土，经养护、拆模板而制作的楼板。其中一个很重要的问题是砼的保湿养护，对其强度增长和各类性能的提高十分重要，特别是早期的妥善养护可以避免表面脱水并大量减少砼初期伸缩裂缝发生。所以，楼层砼浇筑完后的必要养护(一般宜≥24小时)必须获得保证，如在实际施工中，由于抢赶工期和浇水将影响弹线及施工人员作业，施工中必须坚持覆盖麻袋或草包进行一周左右的妥善保湿养护。
希望我的回答对您有所帮助

檬柠Lemon 07-03 04:21

预制装配式钢筋混凝土楼板的种类很多,主要有铺板式楼板、密肋式楼板、无梁式楼板等几种类型。其中,铺板式楼板应用最为广泛。
1.实心平板。实心平板的上、下表面平整,制作简单,厚度一般为板长的1/30,常用的板厚为50~80mm。实心平板的尺寸较小,对吊装设备的要求不高,但楼板隔音效果差,板的刚度也较小。实心平板一般适用于荷载不大,跨度较小的过道、楼梯平台、架空隔板、管道盖板等处。
2.空心板。空心板,又称为“多孔板”,它是将板的中性部分的混凝土抽去而形成的。空心板的截面高度可以较实心板大,故其刚度也大,由于空心,隔音和隔热效果也较好,而且上、下表面平整,顶棚处理较容易,因而在装配式楼板中应用甚广。空心板的缺点是板面不能任意开孔洞,有些场合不能使用。此外,总的来看,空心板的自重仍然较大。

木惜锦年 07-03 04:30

装配式钢筋混凝土楼板的特点：安装简便，施工速度快，成本低；抗震性能好、防水效果好、模数无限制；施工方便，价格便宜，可提前预制；施工速度快，坐浆是在安装时先在两端先铺设水泥少浆，起固定作用。

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