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632米、100多层高的大楼，总重高达80万吨，为啥承重柱不会被压垮？地基打好后，大厦约有 980 多根承重柱是保持不倒的关键，37 层以下用 C70 混凝土，越往上标号越低。 对于抗风问题，在设计阶段采用 BIM 技术 ...
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