知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专. 自己去查荷载规范呀，那是设计的依据，网上说的250公斤每平米说的是阳台一般情况下的 活荷载 是这样，并不包含什么面层，自重，这些是 恒荷载 了。还有阳台聚集人多的时候活荷载.
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