在建房时，建筑工程普遍使用二级钢时就很富有了，建筑螺纹钢筋里面可添加抗震钢，若要是一般的住宅楼要用什么材质的钢材钢筋呢？
In the building, the general use of two steel construction project is very rich, the construction of rebar can be added to the earthquake resistance of steel, if the general residential building materials to use what the steel bar?
一般住宅楼要用什么材质的螺纹钢筋？
General residential building materials to use what the rebar?
住宅楼用什么材质的螺纹钢筋这还要根据我国自然地理条件的不同而采用不同。一般少发地震的地区用的材质多是HRB335、HRB400E；高层建筑和地震多发地震基本上HRB400E、HRB500。

What kind of material used in residential buildings, which will be based on the different nature and geographical conditions of china. In general, the material used in the area of less earthquakes is mostly HRB335, HRB400E; high-rise buildings and earthquakes are basically HRB400E, HRB500.
可以肯定的说，如果房子的楼板是预制板的那么里面的螺纹钢筋就是冷拔预应力筋， 通常在楼板内使用，做板底筋或板负筋，大跨度的板也用HRB400钢筋做底筋和负筋，房子梁板柱采用什么钢筋都是安全的，所以没有必要了解是用什么螺纹钢筋，房子出现危险很多原因是施工过程中的钢筋构造要求达不到设计要求或使用了“瘦身钢筋”造成的，很少是结构计算选型错误造成的。
To be sure, if the house floor is prefabricated as rebar inside is drawn prestressed reinforcement, usually used in the floor, do the slab reinforcement or negative reinforcement plate, long span plate with HRB400 steel bars and end of negative reinforcement, reinforced by house slab column what are safe. So there is no need to know what is the rebar, house is steel construction in the construction process requirements to meet the design requirements or the use of thin steel caused by the risk of a lot of reasons, is rarely caused by the errors of calculation and selection of structure.
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